HZL-BTN-ELE-DS-SY-037 LT CABLE SIZING CALCULATION PMCC TO MCC INCOMER 1.00 INPUT DATA 1.01 Feeder Load
P
=
460
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
50
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factor
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
460 / 0.8
√3 x V
=
=
√3 x 0.415
800
A
Size of 300 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Tota Totall fact factor or to to be app appli lied ed for for arri arrivi ving ng at at the the capa capaci city ty
=
0.65
= 455x3x0.65
curren entt carr carryi ying ng cap capac acit ity y of 300 300sq sq.m .mm, m,3R 3Run un cab cable le 2.03 curr
=
887 A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
800
Vdrop
=
Vdrop
=
%Vdrop
=
x
3 1.94 1.94 240
((0.0 ((0.000 0012 129 9 x 0.8) 0.8) + (0. (0.00 0000 0070 705 5 x 0.6)) 0.6))
x
50
V x
100
=
0.81
%
With in the permissible limit s of 5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable s 300 Iw = = 13.2x√t 13.2*√1 3.03
=
22.7
KA/0.2Sec
(ACB Operated)
3 runs of 1.1kV grade, 3.5 3.5C C x300 x300 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected
2 of 284
HZL-BTN-ELE-DS-SY-037 PMCC TO Crusher Building EOT Crane 1.00 INPUT DATA 1.01 Feeder Load
P
=
76.5
kW
1.02 Voltage rating
VT
=
0.415
kV
1.03 Length of the cable
L
=
45
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Ω / km 0.0724 Ω / km 0.409
1.06 Allowable Voltage Drop at Normal Running Cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
76.5 / 0.8
=
=
=
√3 x V x η 2.02
140
A
0.95x√3 x 0.415
Size of 95 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 95
1.0
221 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Tota Totall fact factor or to to be app appli lied ed for for arr arriv ivin ing g at the the cap capac acit ity y
= 0.65 = 221x1x0.65
2.03 Current carrying capacity of 95 sq.mm1 Run Cable
= 144
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 140 Vdrop
=
x
((0.000409 x 0.8) + (0.0000724 x 0.6))
1 Vdrop
=
%Vdrop
=
2.335 2.335 240
V x
100
=
0.98
%
With in the Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
840
A
( 6 Times the full load current)
3 of 284
x
45
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 840 Vdrop
=
x
((0.000409 x 0.8) + (0.0000724 x 0.6))
x
45
1 Vdrop
=
%Vdrop
=
14.01
V
14.01
x
240
100
=
5.84
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
95
=
13.2x√t
=
13.2*√.2
16.1
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x95sq.mm, x95sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected PMCC PMCC TO Conveyor 01 1.00 INPUT DATA 1.01 Feeder Load
P
=
132
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
165
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at Normal running Cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
132 / 0.8
=
=
√3 x V x η 2.02
=
242
A
0.95x√3 x 0.415
Size of 300 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 300 sq.mm1 Run Cable
0.65 = =
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
= n
4 of 284
L
455x1x0.65 296 A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 242 Vdrop
=
x
((0. ((0.00 0001 0129 29 x 0.8 0.8)) + (0.0 (0.000 0007 0705 05 x 0.6 0.6)) ))
x
165
1 Vdrop
=
%Vdrop
=
5.81
V
5.81
x
240
100
=
2.43
%
With in the Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current = 1452 A
DOL or Squirrel Cage
( 6 Times the full load current)
Drop at the time of Starting 1452 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
165
1 Vdrop
=
%Vdrop
=
34.859
V
34.859
x
240
100
=
14.53
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
300
=
13.2x√t
=
13.2*√1
22.7
KA/Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armou red, XLPE cable is selected PMCC PMCC TO Conveyor 02 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
270
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0716 Ω / km 0.264
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
90 / 0.8 =
√3 x V x η
=
165
A
0.95x√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking.
5 of 284
HZL-BTN-ELE-DS-SY-037
2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 150 sq.mm2 Run Cable
0.65 =
292x2x0.65
=
380 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 165 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
270
2 Vdrop
=
%Vdrop
=
5.661
V
5.661
x
240
100
=
2.36
%
With in the Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
990
A
( 6 Times the full load current)
Drop at the time of Starting 990 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
270
2 Vdrop
=
%Vdrop
=
33.968
V
33.968
x
240
100
=
14.16
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
150 13.2*√.2
=
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected
6 of 284
HZL-BTN-ELE-DS-SY-037 PMCC PMCC TO Conv Conv eyor 12 - Stream Stream 2 Feed con veyor 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
305
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0716 Ω / km 0.264
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
75 / 0.8
=
=
=
√3 x V x η
137
A
0.95x√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables = 0.86 Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 150 sq.mm2 Run Cable
0.65 = =
292x2x0.65 380 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop
√3 x IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 137 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
2 Vdrop
=
%Vdrop
=
5.31 5.31 240
V x
100
=
2.22
%
With in the Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Check Check for Starting Current DOL or Squirrel Cage
=
822
A
( 6 Times the full load current)
7 of 284
305
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 822 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
305
2 Vdrop
=
%Vdrop
=
31.86
V
31.86
x
240
100
=
13.28
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s
150
=
13.2x√t
=
13.2*√.2
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected PMCC TO AUX. SWITCH BOARD 1.00 INPUT DATA 1.01 Feeder Load
P
=
230
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
25
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factors
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder IFL
=
P
√3 x V
230 / 0.8
=
=
√3 x 0.415
400
A
Size of 185 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
= 337x2x0.65
curren entt carr carryi ying ng cap capac acit ity y of 185 185sq sq.m .mm, m,2R 2Run un cab cable le 2.03 curr
= 3.00 Check for voltage drop 3.01 Voltage drop Vdrop
=
IFL
x (R cosΦ + X sinΦ) x
n 8 of 284
0.65
L
438 A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
400
Vdrop
=
Vdrop
=
%Vdrop
=
x
2 1.055
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
25
V
1.055
x
240
100
=
0.44
%
With in the Permissible Permissible limit of 2.5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw 3.03
=
s
185
=
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
2 runs of 1.1kV grade, 3.5 3.5C C x185 x185 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected MCC TO PRIMARY GYRATORY CRUSHER CRUSHER LOCAL PANEL
1.00 INPUT DATA 1.01 Feeder Load 1.02 Voltage rating
P VT
= =
40.2 0.415
1.03 Length of the cable
L
=
35
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
1.06 Allowable Voltage Drop
=
kW kV m
Ω / km 0.0783 Ω / km 1.11 5
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
40.2 / 0.8
=
=
√3 x V x η 2.02
=
74
A
0.95x√3 x 0.415
Size of 35 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables = 0.86 Reduction Factor = 0.9 Factor for Non linear loads = 0.8 Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty = 0.65 = 117x1x0.65 2.03 Current carrying capacity of 35 sq.mm1 Run Cable = 76 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
= n
Where, cosΦ sinΦ
= =
0.8 0.6
(Assumed)
9 of 284
L
A
HZL-BTN-ELE-DS-SY-037 74 Vdrop
=
x
((0. ((0.0 00111 0111 x 0.8 0.8)) + (0.0 (0.000 0007 0783 83 x 0. 0.6)) 6))
x
35
1 Vdrop
=
%Vdrop
=
2.422
V
2.422
x
240
100
=
1.01
%
With in the Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable s 35 Iw = = = 5.93 KA/0.2Sec 13.2x√t 13.2*√.2
(Fuse Operated)
3.03 CABLE SIZE : 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected PRIMZRY GYRATOR CRUSHER SPIDER LUBRICATION SYSTEM 1.00 INPUT DATA 1.01 Feeder Load
P
=
1.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
15
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder
=
0.65
3
A
P IFL
1.5 / 0.8
=
=
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
0.65 = =
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
= n
10 of 284
L
70x1x0.65 46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 3 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
15
1 Vdrop
=
%Vdrop
=
0.09
V
0.09
x
240
100
=
0.04
%
With in the Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
18
=
A
( 6 Times the full load current)
Drop at the time of Starting 18 Vdrop
=
x
((0. ((0.0 00244 0244 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
15
1 Vdrop
=
%Vdrop
=
0.54
V
0.54
x
240
100
=
0.23
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected PRIMARY GYRATOR CRUSHER OVER PRESSURE DUST SYSTEM AIR BLOWER 1.00 INPUT DATA 1.01 Feeder Load
P
=
1.1
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
15
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder
=
0.65
2
A
P IFL
=
1.1 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking.
11 of 284
HZL-BTN-ELE-DS-SY-037 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 2 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
15
1 Vdrop
=
%Vdrop
=
0.06
V
0.06
x
240
100
=
0.03
%
With in the Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
12
=
A
( 6 Times the full load current)
Drop at the time of Starting 12 Vdrop
=
x
((0. ((0.0 00244 0244 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
15
1 Vdrop
=
%Vdrop
=
0.36
V
0.36
x
240
100
=
0.15
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected
12 of 284
HZL-BTN-ELE-DS-SY-037 Primary Gyratory Crusher lube pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.6
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
15
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
5.6 / 0.8
=
=
=
√3 x V x η 2.02
0.95x√3 x 0.415
Size of Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
0.65 = =
70x1x0.65 46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 10 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
1 Vdrop
=
%Vdrop
=
0.3 0.3 240
V x
100
=
0.13
%
With in the Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
60
A
( 6 Times the full load current)
13 of 284
15
HZL-BTN-ELE-DS-SY-037
Drop at the time of Starting 60 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6)) .6))
x
15
1 Vdrop
=
%Vdrop
=
1.8
V
1.8
x
240
100
=
0.75
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Primary Gyratory Crusher lub e oil heater 1.00 INPUT DATA 1.01 Feeder Load
P VT
=
2
kW
=
0.415
kV
1.03 Length of the cable
L
=
15
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
1.02
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
4
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
2 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
=
0.65 = =
14 of 284
70x1x0.65 46
A
HZL-BTN-ELE-DS-SY-037
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 4 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
15
1 Vdrop
=
%Vdrop
=
0.12
V
0.12
x
240
100
=
0.05
%
With in the Permissible limit of 15% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
15
1 Vdrop
=
%Vdrop
=
0.72
V
0.72
x
240
100
=
0.3
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected primary gyratory crusher air/oil coolers 1.00 INPUT DATA 1.01 Feeder Load
P
=
11
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
15
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
15 of 284
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
11 / 0.8
=
=
=
√3 x V x η
20
A
0.95x√3 x 0.415
Size of 16 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 20 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
15
1 Vdrop
=
%Vdrop
=
0.6 0.6 240
V x
100
=
0.25
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
120
A
( 6 Times the full load current)
Drop at the time of Starting 120 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
15
1 Vdrop
=
%Vdrop
=
3.601 3.601 240
V x
100
=
1.51
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 16 of 284
HZL-BTN-ELE-DS-SY-037 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected MPS PUMP FOR MPS SYSTEM 1.00 INPUT DATA 1.01 Feeder Load
P
=
4
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
15
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
4 / 0.8
=
=
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables = 0.86 Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 = =
179x1x0.65 116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 7 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1 17 of 284
x
15
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
0.21
V
0.21
x
240
100
=
0.09
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0. ((0.0 00244 0244 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0. 0.6)) 6))
x
15
1 Vdrop
=
%Vdrop
=
1.26
V
1.26
x
240
100
=
0.53
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
13.2*√.2
=
2.71
KA KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Primary Crusher Prod uct Apron Feeder Feeder (VFD (VFD)) 1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
50
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at Normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
55 / 0.8 =
√3 x V x η
=
101
A
0.95x√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57)
18 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 70 sq.mm1 Run Cable
0.65 =
179x1x0.65 116 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 101 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
50
1 Vdrop
=
%Vdrop
=
2.507
V
2.507
x
240
100
=
1.05
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current For VFD
152
=
1.5 Ti Times th the fu full lo load cu current) A ( 1.
Drop at the time of Starting Vdrop
=
Vdrop
=
%Vdrop
=
151.5
x
((0. ((0.0 00056 00565 5 x 0.8) 0.8) + (0. (0.00 0000 0074 74 x 0. 0.6)) 6))
x
50
1 3.76
V
3.76
x
240
100
=
1.57
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
70 13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Metal Metal Detector Detector conveyor 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
0.04
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
165
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
19 of 284
Ω / km 0.0808 Ω / km 2.44
HZL-BTN-ELE-DS-SY-037 1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
0.04 / 0.9
=
=
=
√3 x V x η 2.02
0.065
A
0.95x√3 x 0.415
Size of Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 0.065 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
165
1 Vdrop
=
%Vdrop
=
0.021 0.021 240
V x
100
=
0.01
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
0.39
A
( 6 Times the full load current)
Drop at the time of Starting 0.39 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1 Vdrop
=
%Vdrop
=
0.129 0.129 240
V x
100
= 20 of 284
0.06
%
x
165
HZL-BTN-ELE-DS-SY-037 With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected MCC TO BELT MA GNET CONVEYOR CONVEYOR 01 - BELT DRIVE 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02 Voltage rating
VT
=
0.415
kV
1.03 Length of the cable
L
=
165
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
6
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
3.7 / 0.8
=
=
=
√3 x V x η 2.02
√3 x 0.415
Size of 16 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8 = 0.65
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
= 70x1x0.65
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
= 46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 6 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1
21 of 284
x
165
HZL-BTN-ELE-DS-SY-037
Vdrop
=
%Vdrop
=
1.98
V
1.98
x
240
100
=
0.83
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
36
=
A
( 6 Times the full load current)
Drop at the time of Starting 36 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6)) .6))
x
165
1 Vdrop
=
%Vdrop
=
11.883
V
11.883
x
240
100
=
4.96
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable
Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Primary Crusher area spillage pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
30
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
36
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at Normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
55
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
30 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 35 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
22 of 284
HZL-BTN-ELE-DS-SY-037 Tota Totall fact factor or to to be app appli lied ed for for arr arriv ivin ing g at the the cap capac acit ity y 2.03 Current carrying capacity of 35 sq.mm,1 Run Cable
0.65
= =
117x1x0.65 76
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 55 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
x
36
1 Vdrop
=
%Vdrop
=
1.851
V
1.851
x
240
100
=
0.78
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
330
=
A
( 6 Times the full load current)
Drop at the time of Starting 330 Vdrop
=
x
((0. ((0.0 00111 0111 x 0.8 0.8)) + (0.0 (0.000 0007 0783 83 x 0.6 0.6)) ))
x
36
1 Vdrop
=
%Vdrop
=
11.108
V
11.108
x
240
100
=
4.63
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
35 13.2*√.2
=
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Ap ro n Feed er Ven ti lat io n Sy st em Ex hau st Fan 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
60
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop at normal running cond. 23 of 284
=
Ω / km 0.0808 Ω / km 2.44 2.5
%
HZL-BTN-ELE-DS-SY-037 1.07 Allowable Voltage Drop at Starting Condition
=
15
1.08 Current derating factors
=
0.65
10
A
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
5.5 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 10 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
60
1 Vdrop
=
%Vdrop
=
1.2 1.2 240
V x
100
=
0.5
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
60
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1 Vdrop
=
%Vdrop
=
7.202 7.202 240
V x
100
=
3.01
%
With in the Permissible limit of 15% voltage drop hence ok 24 of 284
x
60
HZL-BTN-ELE-DS-SY-037
It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Ap ro n Feed er Ven ti lat io n Sy st em Su pp ly Fan 1.00 INPUT DATA 1.01 Feeder Load
P
=
11
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
60
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
20
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
11 / 0.8
=
=
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 = =
70x1x0.65 46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 20 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
1 25 of 284
x
60
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
2.401
V
2.401
x
240
100
=
1.01
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
120
=
A
( 6 Times the full load current)
Drop at the time of Starting 120 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
60
1 Vdrop
=
%Vdrop
=
14.403
V
14.403
x
240
100
=
6.01
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected CV - 01 Ventilation System Exhaust Fan 1.00 INPUT DATA 1.01 Feeder Load
P
=
2.2
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
165
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
4
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
2.2 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 26 of 284
=
0.65
HZL-BTN-ELE-DS-SY-037
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
70x1x0.65 46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 4 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
165
1 Vdrop
=
%Vdrop
=
1.32
V
1.32
x
240
100
=
0.55
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6)) .6))
x
165
1 Vdrop
=
%Vdrop
=
7.922
V
7.922
x
240
100
=
3.31
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected CV - 01 Ventilation System Supply Fan 1.00 INPUT DATA 1.01 Feeder Load
P
=
2.2
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
165
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27 of 284
HZL-BTN-ELE-DS-SY-037
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.2 / 0.8
=
=
=
√3 x V x η
4
A
0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 4 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
165
1 Vdrop
=
%Vdrop
=
1.32 1.32 240
V x
100
=
0.55
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
24
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
165
1 Vdrop
=
%Vdrop
=
7.922 7.922 240
V x
100
=
3.31
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 28 of 284
HZL-BTN-ELE-DS-SY-037 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected COSP Ventilation Exhaust Fan 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
257
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
7.5 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 25 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 25 sq.mm1 Run Cable
0.65 = =
96x1x0.65 62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 14 Vdrop
=
x
((0. ((0.00 0015 153 3 x 0.8) 0.8) + (0. (0.00 0000 0080 805 5 x 0.6) 0.6)))
1 Vdrop
=
4.578
V 29 of 284
x
257
HZL-BTN-ELE-DS-SY-037 %Vdrop
4.578
=
x
240
100
=
1.91
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
84
=
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0. ((0.00 0015 153 3 x 0.8) 0.8) + (0. (0.00 0000 0080 805 5 x 0.6)) .6))
x
257
1 Vdrop
=
%Vdrop
=
27.466
V
27.466
x
240
100
=
11.45
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
25
=
13.2x√t
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected COSP Ventilation Supply Fan 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
257
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
3.7 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 = =
30 of 284
70x1x0.65 46
A
HZL-BTN-ELE-DS-SY-037
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 7 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
257
1 Vdrop
=
%Vdrop
=
3.599
V
3.599
x
240
100
=
1.5
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
257
1 Vdrop
=
%Vdrop
=
21.593
V
21.593
x
240
100
=
9
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected PCH AREA DSP PUMPS 1.00 INPUT DATA 1.01 Feeder Load 1.02 Voltage rating
P VT
= =
11 0.415
1.03 Length of the cable
L
=
48
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
kW kV m
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
31 of 284
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
11 / 0.8
=
=
=
√3 x V x η
20
A
0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables = 0.86 Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 20 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
48
1 Vdrop
=
%Vdrop
=
1.92 1.92 240
V x
100
=
0.8
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
120
A
( 6 Times the full load current)
Drop at the time of Starting 120 Vdrop
=
x
((0. ((0.0 00244 0244 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0. 0.6)) 6))
1 Vdrop
=
%Vdrop
=
11.523 11.523 240
V x
100
=
4.81
%
With in the Permissible limit of 15% voltage drop hence ok 32 of 284
x
48
HZL-BTN-ELE-DS-SY-037
It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected MOTORISED FLOPPER GATE 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
50
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
5.5 / 0.8
=
=
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
0.65 = =
70x1x0.65 46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 10 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1
33 of 284
x
50
HZL-BTN-ELE-DS-SY-037
Vdrop
=
%Vdrop
=
1
V
1
x
240
100
=
0.42
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
60
=
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
50
1 Vdrop
=
%Vdrop
=
6.001
V
6.001
x
240
100
=
2.51
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Conveyor 4 - Stokpile feed conveyor with t ripper car 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
334
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
45 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 34 of 284
=
0.65
HZL-BTN-ELE-DS-SY-037
2.03 Current carrying capacity of 185 sq.mm1 Run Cable
=
337x1x0.65 219 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 82 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
334
1 Vdrop
=
%Vdrop
=
5.781
V
5.781
x
240
100
=
2.41
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
492
=
A
( 6 Times the full load current)
Drop at the time of Starting 492 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
334
1 Vdrop
=
%Vdrop
=
34.686
V
34.686
x
240
100
=
14.46
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
185
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE cable is selected Tripper car 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
35 of 284
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
3.7 / 0.8
=
=
=
√3 x V x η
7
A
0.95x√3 x 0.415
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 7 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
260
1 Vdrop
=
%Vdrop
=
3.641 3.641 240
V x
100
=
1.52
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
42
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
260
1 Vdrop
=
%Vdrop
=
21.845 21.845 240
V x
100
=
9.11
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
36 of 284
HZL-BTN-ELE-DS-SY-037 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Wet Type Fan in PCH MCC 1.00 INPUT DATA 1.01 Feeder Load
P
=
2.23
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
4
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
2.23 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 = =
70x1x0.65 46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 4 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1 Vdrop
=
0.16
V 37 of 284
x
20
HZL-BTN-ELE-DS-SY-037
%Vdrop
0.16
=
x
240
100
=
0.07
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
20
1 Vdrop
=
%Vdrop
=
0.96
V
0.96
x
240
10 1 00
=
0.4
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Water Pump in B03 - PMC - 112 112 1.00 INPUT DATA 1.01 Feeder Load
P
=
1.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
50
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
3
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
1.5 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 38 of 284
=
0.65
HZL-BTN-ELE-DS-SY-037 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
70x1x0.65 46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 3 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
50
1 Vdrop
=
%Vdrop
=
0.3
V
0.3
x
240
100
=
0.13
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
18
=
A
( 6 Times the full load current)
Drop at the time of Starting 18 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
50
1 Vdrop
=
%Vdrop
=
1.8
V
1.8
x
240
100
=
0.75
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected GSS TO PCH MLDB 1.00 INPUT DATA 1.01 Feeder Load
P
=
100
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
1100
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factors
=
0.65
39 of 284
kVA
%
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
100
=
=
=
√3 x V
139
A
√3 x 0.415
Size of 300 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 455x2x0.65
curren entt carr carryi ying ng cap capac acit ity y of 300 300sq sq.m .mm, m,2R 2Run un cab cable le 2.03 curr
=
592 A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
139 Vdrop
=
x
((0.0 ((0.000 0012 129 9 x 0.8) 0.8) + (0. (0.00 0000 0070 705 5 x 0.6)) 0.6))
x
1100
2 Vdrop
=
%Vdrop
=
11.123
V
11.123
x
240
100
=
4.64
%
With in the Permissible limit of 5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw 3.03
=
s 13.2x√t
=
300 13.2*√.2
=
50.8
KA/0.2Sec
(Fuse Operated)
2 runs of 1.1kV grade, 3.5 3.5C C x300 x300 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected PCH TRANSFORMER TO PMCC
1.00 INPUT DATA 1.01 Feeder Load
P
=
2000
KVA
1.02
VT
=
0.433
kV
1.03 Length of the cable
L
=
60
m
1.04 AC resistance of the cable at 70°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
0.082
1.06 Allowable Voltage Drop
=
2.5
1.07 Current derating factors
=
0.65
Voltage rating
40 of 284
0.0648 Ω / km
Ω / km %
HZL-BTN-ELE-DS-SY-037
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2000
=
=
=
√3 x V
2667
A
√3 x 0.433
Size of 630 Sq.mm single core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
630
1.0
814 A
(Ref : KEI INDUSTRIES LIMITED CATALOG PG.NO. 79) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 814x6x0.65
curren entt carr carryi ying ng cap capac acit ity y of 630 630sq sq.m .mm, m,6R 6Run un cab cable le 2.03 curr
= 3175 A 3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
2667 Vdrop
=
x
((0.0 ((0.000 0006 0648 48 x 0.8 0.8)) + (0.0 (0.000 0008 082 2 x 0.6)) 0.6))
x
60
6 Vdrop
=
%Vdrop
=
2.695
V
2.695
x
240
100
=
1.13
%
With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw 3.03
=
s 13.2x√t
=
630 13.2*√1
=
47.7
KA/1Sec
6 runs of 1.1kV 1.1kV grade, 3x1x63 3x1x630 0 sq.mm+ 3Runs for Neutral Neutral ,Al conduc tor, Ar moured, XLPE cable is s elected elected
PCH TRANSFORMER TO PMCC ( FOR 50% OF LOAD ) 1.00 INPUT DATA 1.01 Feeder Load
P
=
1000
KVA
1.02
VT
=
0.433
kV
1.03 Length of the cable
L
=
50
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
41 of 284
Ω / km 0.0705 Ω / km 0.129
HZL-BTN-ELE-DS-SY-037 1.06 Allowable Voltage Drop
=
2.5
1.07 Current derating factors
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
1000
=
=
=
√3 x V
1333
A
√3 x 0.433
Size of 300 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : KEI INDUSTRIES LIMITED CATALOG PG.NO. 79) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 455x5x0.65
curren entt carr carryi ying ng cap capac acit ity y of 300 300sq sq.m .mm, m,5R 5Run un cab cable le 2.03 curr
= 1479 A 3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
1333 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
50
5 Vdrop
=
%Vdrop
=
1.94
V
1.94
x
240
100
=
0.81
%
With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw 3.03
=
s 13.2x√t
=
300 13.2*√1
=
22.7
KA/1Sec
(Fuse Operated)
5 runs of 1.1kV grade, 3.5Cx300 sq.mm, Al conductor, Armoured, XLPE cable is selected
42 of 284
HZL-BTN-ELE-DS-SY-037
LT CABLE SIZING CALCULATION TOTAL POWER FOR +AL2 CABINET (OPERATING BALL MILL) 1.00 INPUT DATA 1.01 Feeder Load
P
=
65
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop
Ω / km 0.0724 Ω / km 0.409
=
5
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
65 / 0.8 =
√3 x V
=
√3 x 0.415
113
A
Size of 95 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
95
1.0
221 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 95 sq.mm1 Run Cable
0.65 = =
221x1x0.65 144 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
113
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0004 0409 09 x 0.8 0.8)) + (0.0 (0.000 0007 0724 24 x 0.6 0.6)) ))
x
260
1 10.889
V
10.889
x
240
100
=
4.54
%
With in the Permissible limit of 5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
95 13.2*√.2
=
16.1
KA/0.2Sec
(Fuse Operated)
3.03 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x95sq.mm, x95sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected
42 of 284
HZL-BTN-ELE-DS-SY-037
TOTAL POWER FOR +AL1 CABINET (OPERATING BALL MILL) 1.00 INPUT DATA 1.01 Feeder Load
P
=
80
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop
Ω / km 0.0712 Ω / km 0.323
=
5
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder IFL
P
=
80 / 0.8
=
√3 x V
=
√3 x 0.415
139
A
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 120 sq.mm1 Run Cable
0.65 = =
257x1x0.65 167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where,
Vdrop
=
Vdrop
=
%Vdrop
=
cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
139
x
((0. ((0.00 0003 0323 23 x 0.8 0.8)) + (0.0 (0.000 0007 0712 12 x 0.6 0.6)) ))
x
260
1 10.882
V
10.882
x
240
100
=
4.54
%
With in the Permissible limit of 5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
120 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.03 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected
43 of 284
HZL-BTN-ELE-DS-SY-037 TOTAL POWER FOR +AL2 CABINET (OPERATING SAG MILL) 1.00 INPUT DATA 1.01 Feeder Load
P
=
60
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
245
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop
Ω / km 0.0724 Ω / km 0.409
=
5
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
60 / 0.8 =
√3 x V
=
√3 x 0.415
104
A
Size of 95 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 95
1.0
221 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 95 sq.mm1 Run Cable
0.65 = =
221x1x0.65 144 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
104
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0004 0409 09 x 0.8 0.8)) + (0.0 (0.000 0007 0724 24 x 0.6 0.6)) ))
x
245
1 9.444
V
9.444
x
240
100
=
3.94
%
With in the Permissible limit of 5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
95 13.2*√.2
=
16.1
KA/0.2Sec
3.03 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x95sq.mm, x95sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected
44 of 284
HZL-BTN-ELE-DS-SY-037 TOTAL POWER FOR +AL1 CABINET (OPERATING SAG MILL) 1.00 INPUT DATA 1.01 Feeder Load
P
=
80
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
245
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop
Ω / km 0.0712 Ω / km 0.323
=
5
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
80 / 0.8 =
√3 x V
=
√3 x 0.415
139
A
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 120 sq.mm1 Run Cable
0.65 = =
257x1x0.65 167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
139
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0003 0323 23 x 0.8 0.8)) + (0.0 (0.000 0007 0712 12 x 0.6 0.6)) ))
x
245
1 10.255
V
10.255
x
240
100
=
4.28
%
With in the Permissible limit of 5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
120 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.03 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected
45 of 284
HZL-BTN-ELE-DS-SY-037 MILL DISCHARGE DISCHARGE PUMP - VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
200
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
348
m
1.04 AC resistance of the cable at 90°C
R
=
0.161
1.05 Reactance of the cable at 50Hz
X
=
0.071
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
200 / 0.8
√3 x V x η
=
=
0.95x√3 x 0.415
366
A
Size of 240 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient 2.02 Cable size Current Rating at 35°C Temperature 35°C 240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 399x2x0.65
2.03 Current carrying capacity of 240 sq.mm2 Run Cable
=
519 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cos Φ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition Vdrop
366 =
x
((0.000161 x 0.8) + (0.000071 x 0.6))
x
348
2 Vdrop
=
%Vdrop
=
10.915 10.915 240
V x
100
=
4.55
%
With in the Permissible limit of 5% voltage drop hence ok 3.02 Check Check for Starting Current = 1098 A
For VFD
( 3 Times the full load current)
Drop at the time of Starting Vdrop
=
1098
x
((0.000161 x 0.8) + (0.000071 x 0.6))
2 Vdrop
=
32.746
V 46 of 284
x
348
HZL-BTN-ELE-DS-SY-037 %Vdrop
32.746
=
x
240
100
=
13.65
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
240
=
13.2x√t
=
13.2*√.2
40.7
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x240sq.mm, Al condu cto r, Armou red, XLPE cable is selected 2 ND STAGE CLASSIFYING CYCLONE FEED PUMPS - VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
110
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
265
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
110 / 0.8
=
=
√3 x V x η
=
201
A
0.95x√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient 2.02 Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 337x1x0.65
2.03 Current carrying capacity of 185 sq.mm1 Run Cable
=
219 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 201 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
1 47 of 284
x
265
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
11.243
V
11.243
x
240
100
=
4.69
%
With in the Permissible limit of 5% voltage drop hence ok 3.02 Check Check for Starting Current For VFD
=
603
A
( 3 Times the full load current)
Drop at the time of Starting 603 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6)) .6))
x
265
1 Vdrop
=
%Vdrop
=
33.73
V
33.73
x
240
100
=
14.06
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
185
=
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE cable is selected ZINC CIRCUIT WATR PUMPS 1.00 INPUT DATA 1.01 1.02 1.03 1.04 1.05 1.06 1.07
P VT L R X
Feeder Load Voltage rating Length of the cable AC resistance of the cable at 90°C Reactance of the cable at 50Hz Allowable Voltage Drop at normal running cond. Allowable Voltage Drop at Starting Condition
1.08 Current derating factors
= = = = = = =
75 0.415 230 0.161 0.071 2.5 15
=
0.65
kW kV m Ω / km Ω / km % %
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
75 /0.8 =
√3 x V x η 2.02
=
137
A
√3 x 0.415x 0.95
Size of 240 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 240 sq.mm1 Run Cable
=
0.65 399*1*0.65
= =
48 of 284
259 A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cos Φ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 137 Vdrop
=
x
((0. ((0.00 0001 0161 61 x 0.8 0.8)) + (0.0 (0.000 0007 071 1 x 0.6) 0.6)))
x
230
1
3.02
Vdrop
=
%Vdrop
=
5.401
V
5.401
x
240
100
=
2.26
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
822
=
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0. ((0.00 0001 0161 61 x 0.8 0.8)) + (0.0 (0.000 0007 071 1 x 0.6)) .6))
x
230
1 Vdrop
=
%Vdrop
=
32.405
V
32.405
x
240
100
=
13.51
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
240
=
13.2x√t
13.2*√.2
=
40.7
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x240sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Cleaner I Concentrate Froth Pump 1.00 INPUT DATA 1.01 Feeder Load
P VT
=
75
kW
=
0.415
kV
1.03 Length of the cable
L
=
276
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
1.02
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder
=
0.65
P I FL
=
√3 x V x η
75 / 0.8 =
0.95x√3 x 0.415
=
137
A
Size of 300 Sq.mm 3.5core Aluminium cable is selected for checking. 49 of 284
HZL-BTN-ELE-DS-SY-037 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 300 sq.mm1 Run Cable
0.65 455*1*0.65
=
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 137 Vdrop
=
x
((0. ((0.00 0001 0129 29 x 0.8 0.8)) + (0.0 (0.000 0007 0705 05 x 0.6 0.6)) ))
x
276
1 Vdrop
=
%Vdrop
=
5.502
V
5.502
x
240
10 1 00
=
2.3
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
822
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 276))
x
276
1 Vdrop
=
%Vdrop
=
33.01
V
33.01
x
240
100
=
13.76
%
With in the limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
300 13.2*√.2
=
50.8
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armou red, XLPE cable is selected INSTRUMENT AIR COMPRESSOR 1/COMPRESSOR 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.04
VT
=
0.415
kV
L
=
329
m
Voltage rating
1.03 Length of the cable 50 of 284
HZL-BTN-ELE-DS-SY-037 1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
90 / 0.8
√3 x V x η
=
=
√3 x 0.415x 0.95
165
A
Size of 185 sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
current nt car carry ryin ing g capa capaci city ty of of 185 185 sq.m sq.mm m 2Run 2Run cab cable le 2.03 curre
0.65 337*2*0.65
= =
438 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition Vdrop
=
Vdrop
=
%Vdrop
=
165
x
2 5.729 5.729 240
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6) 0.6)))
x
329
V x
100
=
2.39
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrel Cage
=
990
A
( 6 Times the full load current)
Drop at the time of Starting 990 Vdrop
=
x
((0. ((0.0 00021 0021 x 0.8 0.8)) + (0.0 (0.000 0007 0718 18 x 0. 0.6)) 6))
2 Vdrop
=
%Vdrop
=
34.375 34.375 240
V x
100
=
14.33
51 of 284
%
x
329
HZL-BTN-ELE-DS-SY-037 With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw 3.04
s
=
185
=
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
2 runs of 1.1kV grade, 3.5 3.5C C x185 x185 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected Zn Concentrate Storage tank tank agitator 2
1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
350
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
55 /0.8
=
=
√3 x V x η
=
101
A
√3 x 0.415x 0.95
Size of 300 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 300 sq.mm1 Run Cable
=
0.65 455*1*0.65
= =
296 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 101 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
1 52 of 284
x
350
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
5.143
V
5.143
x
240
100
=
2.15
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02
Check Check for Starting Current DOL or Squirrel Cage
606
=
A
( 6 Times the full load current)
Drop at the time of Starting 606 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
350
1 Vdrop
=
%Vdrop
=
30.861
V
30.861
x
240
100
=
12.86
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw
s
=
300
=
13.2x√t
=
13.2*√.2
50.8
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Conc Conc entrate Filter feed pum ps 2 (VFD) (VFD) 1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
335
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
55 / 0.8 =
√3 x V x η 2.02
=
101
A
√3 x 0.415x 0.95
Size of 120 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
53 of 284
HZL-BTN-ELE-DS-SY-037 Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 120 sq.mm1 Run Cable
0.65 257*1*0.65
=
167 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 101 Vdrop
=
x
((0. ((0.00 0003 0323 23 x 0.8 0.8)) + (0.0 (0.000 0007 0712 12 x 0.6 0.6)) ))
x
335
1 Vdrop
=
%Vdrop
=
10.188
V
10.188
x
240
100
=
4.25
%
With in Permissib le voltage drop i s 5% on 240V 240V basis basis hence ok 3.02
Check Check for Starting Current For VFD
=
303
x
((0.000323 x 0.8) + (0.0000712 x 0.0712))
A
( 3 Times the full load current)
Drop at the time of Starting 303 Vdrop
=
x
335
1 Vdrop
=
%Vdrop
=
30.565
V
30.565
x
240
100
=
12.74
%
With in the Permissible limit of 15%voltage 15%voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
120 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armo ured, XLPE cable is selected PLANT AIR /FILTER AIR COMPRESSOR 3/COMPRESSOR 4 1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.04
VT
=
0.415
kV
1.03 Length of the cable
L
=
327
m
1.04 AC resistance of the cable at 90°C
R
=
0.161
1.05 Reactance of the cable at 50Hz
X
=
0.071
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
Voltage rating
54 of 284
Ω / km Ω / km
HZL-BTN-ELE-DS-SY-037 1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
55 / 0.8
=
=
√3 x V x η
=
101
A
√3 x 0.415x 0.95
Size of 240 sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
current nt car carry ryin ing g capa capaci city ty of of 240 240 sq.m sq.mm m 1Run 1Run cab cable le 2.03 curre
0.65 399*1*0.65
= =
259 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 101
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 5.661 5.661 240
((0.000161 x 0.8) + (0.000071 x 0.6))
x
327
V x
100
=
2.36
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage
=
606
A
( 6 Times the full load current)
Drop at the time of Starting 606 Vdrop
=
x
((0.000161 x 0.8) + (0.000071 x 0.6))
x
327
1 Vdrop
=
33.965
%Vdrop
=
33.965 240
V x
100
=
14.16
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
55 of 284
HZL-BTN-ELE-DS-SY-037 3.03 Short Time rating of the Cable Cable Iw 3.04
s
=
240
=
13.2x√t
=
13.2*√.2
40.7
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x240 x240 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected PROCESS PROCESS PLA NT GLAND SEAL WATER PUMP 1/PUMP 1/PUMP 2
1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.04
VT
=
0.415
kV
1.03 Length of the cable
L
=
354
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
55 / 0.8
=
=
√3 x V x η
=
101
A
√3 x 0.415x 0.95
Size of 300 sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty current nt car carry ryin ing g capa capaci city ty of of 300 300 sq.m sq.mm m 1Run 1Run cab cable le 2.03 curre
=
0.65 455*1*0.65
= =
296 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
Where,
x (R cosΦ + X sinΦ) x
n cosΦ sinΦ
= =
0.8 0.6
L
(Assumed)
Voltage Drop Drop at Normal Running Condition 101
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0001 0129 29 x 0.8 0.8)) + (0.0 (0.000 0007 0705 05 x 0.6 0.6)) ))
1 5.202 5.202 240
V x
100
= 56 of 284
2.17
%
x
354
HZL-BTN-ELE-DS-SY-037 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage
=
606
( 6 Times the full load current)
A
Drop at the time of Starting 606 Vdrop
=
x
((0. ((0.00 0001 0129 29 x 0.8 0.8)) + (0.0 (0.000 0007 0705 05 x 0.6 0.6)) ))
x
354
1 Vdrop
=
%Vdrop
=
31.213
V
31.213
x
240
100
=
13.01
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
300
=
=
13.2*√.2
50.8
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x300 x300 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected COOLING WATER PUMP
1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
287
m
1.04 AC resistance of the cable at 90°C
R
=
0.161
1.05 Reactance of the cable at 50Hz
X
=
0.071
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Cu Current derating factors
=
0.65
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
=
√3 x V x η 2.02
55 / 0.8 =
101
A
√3 x 0.415x 0.95
Size of 240 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 240 240sq sq.m .mm, m,1R 1Run un cabl cable e 2.03 curr
= =
0.65 399x1x0.65 =
57 of 284
259 A
HZL-BTN-ELE-DS-SY-037 3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 101 Vdrop
=
x
((0.0 ((0.000 0016 161 1 x 0.8) 0.8) + (0. (0.00 0000 0071 71 x 0.6 0.6)) ))
x
287
1 Vdrop
=
%Vdrop
=
4.968
V
4.968
x
240
100
=
2.07
%
With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage
=
606
A
( 6 Times the full load current)
Drop at the time of Starting 606 Vdrop
=
x
((0.000161 x 0.8) + (0.000071 x 0.6))
x
287
1 Vdrop
=
%Vdrop
=
29.81 29.81 240
V x
100
=
12.43
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
240 13.2*√.2
=
40.7
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x240 x240 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected
Zn Cleaner IV Cell 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
210
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
58 of 284
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder I FL
2.02
P
=
45 / 0.8
=
√3 x V x η
=
0.95x√3 x 0.415
82
A
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 120 sq.mm1 Run Cable
=
0.65 257*1*0.65
= =
167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
Voltage Drop Drop at Normal Running Condition 82 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
210
1 Vdrop
=
%Vdrop
=
5.185
V
5.185
x
240
100
=
2.17
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltege drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage
=
492
A
( 6 Times the full load current)
Drop at the time of Starting 492 Vdrop
=
Vdrop
=
x
((0 ((0.000323 x 0.8) + (0.0000712 x 0.6))
x
210
1 31.112
V
31.112 x 100 = 12.97 % 240 With in the Permissible limit of 15% voltage drop hence ok
%Vdrop
=
It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
120 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected 59 of 284
HZL-BTN-ELE-DS-SY-037
LT CABLE SIZING CALCULATION Pb Rougher cell 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
328
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0716 Ω / km 0.264
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
75 / 0.8
=
=
=
√3 x V x η 2.02
130
A
0.95x√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 292x2x0.65
2.03 Current carrying capacity of sq.mm2 Run Cable
=
380 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
130 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
100
=
2 Vdrop
=
%Vdrop
=
5.419 5.419 240
V x
2.26
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
780
A
( 6 Times the full load current)
60 of 284
x
328
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 780 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
328
2 Vdrop
=
%Vdrop
=
32.512
V
32.512
x
240
100
=
13.55
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
150
=
13.2x√t
13.2*√.2
=
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected Pb Rougher cell 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
323
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0716 Ω / km 0.264
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
75 / 0.8
√3 x V x η
=
0.95x√3 x 0.415
=
130
A
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables = 0.86 Reduction Factor = 0.9 Factor for Non linear loads = 0.8 Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty = 0.65 = 292x2x0.65 2.03 Current carrying capacity of sq.mm2 Run Cable = 3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cos Φ + X sinΦ) x
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
61 of 284
L
380 A
HZL-BTN-ELE-DS-SY-037 130 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
323
2 Vdrop
=
%Vdrop
=
5.336
V
5.336
x
240
100
=
2.23
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
780
=
A
( 6 Times the full load current)
Drop at the time of Starting 780 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
323
2 Vdrop
=
%Vdrop
=
32.017
V
32.017
x
240
100
=
13.35
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
150
=
13.2x√t
=
13.2*√.2
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected Pb Rougher cell 3 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
318
m
1.04 AC resistance of the cable at 90°C
R
=
0.264
1.05 Reactance of the cable at 50Hz
X
=
0.0716 Ω / km
Voltage rating
Ω / km
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
75 / 0.8
√3 x V x η
=
0.95*√3 x 0.415
=
137
A
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
62 of 284
HZL-BTN-ELE-DS-SY-037 Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 292x2x0.65
2.03 Current carrying capacity of sq.mm2 Run Cable
380 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
318
2 Vdrop
=
%Vdrop
=
5.536
V
5.536
x
240
100
=
2.31
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
822
=
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
318
2 Vdrop
=
%Vdrop
=
33.218
V
33.218
x
240
100
=
13.85
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
150 13.2*√.2
=
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected Pb Scavenger cell 4 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
312
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0716 Ω / km 0.264
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
63 of 284
HZL-BTN-ELE-DS-SY-037 1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
75 / 0.8
=
=
=
√3 x V x η
137
A
0.95*√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 292x2x0.65
2.03 Current carrying capacity of sq.mm Run Cable
=
380 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
312
2 Vdrop
=
%Vdrop
=
5.432 5.432 240
V x
100
=
2.27
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
822
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
312
2 Vdrop
=
%Vdrop
=
32.591 32.591 240
V x
100
=
13.58
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
64 of 284
HZL-BTN-ELE-DS-SY-037 3.03 Short Time rating of the Cable Cable Iw
s
=
150
=
13.2x√t
=
13.2*√.2
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armo ured, XLPE cable is selected Pb Scavenger cell 5 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
307
m
1.04 AC resistance of the cable at 90°C
R
=
0.264
1.05 Reactance of the cable at 50Hz
X
=
0.0716 Ω / km
Voltage rating
Ω / km
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
75 / 0.8
=
=
=
√3 x V x η
137
A
0.95*√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 292x2x0.65
2.03 Current carrying capacity of sq.mm2 Run Cable
=
380 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
2 Vdrop
=
5.345
V 65 of 284
x
307
HZL-BTN-ELE-DS-SY-037 %Vdrop
5.345
=
x
240
100
=
2.23
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
822
=
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
307
2 Vdrop
=
%Vdrop
=
32.069
V
32.069
x
240
100
=
13.37
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
150
=
13.2x√t
=
13.2*√.2
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armo ured, XLPE cable is selected Pb Scavenger cell 6 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
302
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0716 Ω / km 0.264
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
75 / 0.8
=
=
√3 x V x η
=
137
A
0.95*√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of sq.mm2 Run Cable
=
0.65
= 292x2x0.65 =
66 of 284
380 A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
302
2 Vdrop
=
%Vdrop
=
5.258 5.258 240
V x
10 1 00
=
2.2
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
822
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
302
2 Vdrop
=
%Vdrop
=
31.547 31.547 240
V x
100
=
13.15
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable s 150 Iw = = √ 13.2x t 13.2*√.2
=
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armo ured, XLPE cable is selected Pb Scavenger Cell 7 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
295
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
75 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95 67 of 284
137
A
HZL-BTN-ELE-DS-SY-037
Size of 300 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65 455*1*0.65
2.03 Current carrying capacity of 185 sq.mm,1 Run Cable = =
296 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
295
1 Vdrop
=
%Vdrop
=
5.88
V
5.88
x
240
100
=
2.45
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrelcage Motor
=
822
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
295
1 Vdrop
=
%Vdrop
=
35.282
V
35.282
x
240
100
=
14.71
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
300 13.2*√.2
=
50.8
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armo ured, XLPE cable is selected
68 of 284
HZL-BTN-ELE-DS-SY-037 Zn FILTER MAINFOLD MAINFOLD WA SH WATER PUMPS
1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
340
m
1.04 AC resistance of the cable at 90°C
R
=
0.264
1.05 Reactance of the cable at 50Hz
X
=
0.0716 Ω / km
Voltage rating
Ω / km
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
75 / 0.8
=
=
=
√3 x V
137
A
√3 x 0.415x 0.95
Size of 150 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 150 sq.mm2 Run Cable
=
0.65 292*2*0.65
= =
380 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
2 Vdrop
=
%Vdrop
=
5.919 5.919 240
V x
100
=
2.47
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
822
A
( 6 Times the full load current)
69 of 284
340
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 822 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
340
2 Vdrop
=
%Vdrop
=
35.516
V
35.516
x
240
100
=
14.8
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
150
=
13.2x√t
=
13.2*√.2
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected Pb Scavenger Tails pumps (VFD) 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
347
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
75 / 0.8
=
=
√3 x V x η 2.02
=
137
A
0.95*√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 337x1x0.65
2.03 Current carrying capacity of sq.mm1 Run Cable
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
70 of 284
L
219 A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6) 0.6)))
x
347
1 Vdrop
=
%Vdrop
=
10.035
V
10.035
x
240
100
=
4.19
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current For VFD
411
=
A
( 3 Times the full load current)
Drop at the time of Starting 411 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
347
1 Vdrop
=
%Vdrop
=
30.104
V
30.104
x
240
100
=
12.55
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
185
=
13.2x√t
13.2*√.2
=
31.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armo ured, XLPE cable is selected Zn Cleaner IV Cell 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
215
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
45 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 120 Sq.mm 3.5 core Aluminium cable is selected for checking.
71 of 284
HZL-BTN-ELE-DS-SY-037 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 120 sq.mm1 Run Cable
0.65 257*1*0.65
=
167 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 5.309
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
215
V
5.309
x
240
100
=
2.22
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
492
A
( 6 Times the full load current)
Drop at the time of Starting Vdrop
=
Vdrop
=
%Vdrop
=
492
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
215
1 31.852 31.852 240
V x
100
=
13.28
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable s 120 Iw = = 13.2x√t 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Cleaner IV Concentrate Froth Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
255
m
1.04 AC resistance of the cable at 90°C
R
=
0.264
Voltage rating
72 of 284
Ω / km
HZL-BTN-ELE-DS-SY-037 1.05 Reactance of the cable at 50Hz
X
0.0716 Ω / km
=
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
45 / 0.8
=
=
=
√3 x V
0.95*√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 292x1x0.65
2.03 Current carrying capacity of sq.mm1 Run Cable
=
190 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
255
1 Vdrop
=
%Vdrop
=
5.314 5.314 240
V x
100
=
2.22
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
492
A
( 6 Times the full load current)
Drop at the time of Starting 492 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
1 Vdrop
=
%Vdrop
=
31.887 31.887 240
V
x
100
=
13.29
73 of 284
%
x
255
HZL-BTN-ELE-DS-SY-037 With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
150
=
13.2x√t
=
13.2*√.2
25.4
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Cleaner III Cell Cell 3 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
220
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
45 / 0.8
=
=
=
√3 x V x η 2.02
0.95*√3 x 0.415
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 120 sq.mm1 Run Cable
=
0.65 257*1*0.65
= =
167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
1 5.432 5.432 240
V x
100
= 74 of 284
2.27
%
x
220
HZL-BTN-ELE-DS-SY-037 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
492
=
A
( 6 Times the full load current)
Drop at the time of Starting 492 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
220
1 Vdrop
=
%Vdrop
=
32.593
V
32.593
x
240
100
=
13.59
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
120
=
13.2x√t
=
13.2*√.2
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected
Zn Cleaner III Cell Cell 4 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
225
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
45 / 0.8
=
=
√3 x V x η
= 0.95*√3 x 0.415
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 120 sq.mm1 Run Cable
=
0.65 257*1*0.65
= =
75 of 284
167 A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
225
1 Vdrop
=
%Vdrop
=
4.861
V
4.861
x
240
100
=
2.03
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
492
=
A
( 6 Times the full load current)
Drop at the time of Starting 492 Vdrop
=
x
((0. ((0.00 0003 0323 23 x 0.8 0.8)) + (0.0 (0.000 0007 0712 12 x 0.6 0.6)) ))
x
225
1 Vdrop
=
%Vdrop
=
33.334
V
33.334
x
240
100
=
13.89
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
120
=
13.2x√t
13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Cleaner III Cell Cell 5 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
230
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
45 / 0.8 =
√3 x V x η
= 0.95*√3 x 0.415 76 of 284
HZL-BTN-ELE-DS-SY-037
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 120 sq.mm1 Run Cable
=
0.65 257*1*0.65
= =
167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
230
1 Vdrop
=
%Vdrop
=
5.679
V
5.679
x
240
100
=
2.37
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
492
A
( 6 Times the full load current)
Drop at the time of Starting 492 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
230
1 Vdrop
=
%Vdrop
=
34.075
V
34.075
x
240
100
=
14.2
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
120 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected
77 of 284
HZL-BTN-ELE-DS-SY-037 Zn Cleaner II Cell 6 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
235
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
45 / 0.8
=
=
=
√3 x V x η
0.95*√3 x 0.415
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 120 sq.mm1 Run Cable
=
0.65 257*1*0.65
= =
167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 5.803 5.803 240
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
235
V x
100
=
2.42
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor = 492 A ( 6 Times the full load current) Drop at the time of Starting 492 Vdrop
=
x
((0. ((0.00 0003 0323 23 x 0.8 0.8)) + (0.0 (0.000 0007 0712 12 x 0.6 0.6)) ))
1 78 of 284
x
235
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
34.815
V
34.815
x
240
100
=
14.51
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
120
=
13.2x√t
=
13.2*√.2
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Cleaner II Cell 7 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
240
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
45 / 0.8
√3 x V x η
=
=
0.95*√3 x 0.415
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 120 sq.mm1 Run Cable
=
0.65 257*1*0.65
= =
167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cos Φ + X sinΦ) x
n
L
Where,
Vdrop
cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82 =
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
1 79 of 284
x
240
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
5.926
V
5.926
x
240
100
=
2.47
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
492
=
A
( 6 Times the full load current)
Drop at the time of Starting 492 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
240
1 Vdrop
=
%Vdrop
=
35.556
V
35.556
x
240
100
=
14.82
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
120
=
13.2x√t
=
13.2*√.2
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armo ured, XLPE cable is selected Zn Cleaner II Cell 8 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
245
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0716 Ω / km 0.264
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
45 / 0.8 =
√3 x V x η 2.02
= 0.95*√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 150 sq.mm1 Run Cable
=
0.65 292*1*0.65
= =
80 of 284
190 A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
x (R cos Φ + X sinΦ) x
n
L
Where,
Vdrop
=
Vdrop
=
%Vdrop
=
cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
x
245
1 5.106
V
5.106 x
100
=
2.13
%
240 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
492
=
A
( 6 Times the full load current)
Drop at the time of Starting 492 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
245
1 Vdrop
=
%Vdrop
=
30.636
V
30.636
x
240
100
=
12.77
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
150
=
13.2x√t
13.2*√.2
=
25.4
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected Electric overhead travelling crane (Area D) D) 1.00 INPUT DATA 1.01 Feeder Load
P
=
9.15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
330
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
17
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
√3 x V x η
9.15 / 0.8 =
0.95x√3 x 0.415 81 of 284
=
HZL-BTN-ELE-DS-SY-037
Size of 35 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 117x1x0.65
2.03 Current carrying capacity of sq.mm1 Run Cable
=
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
17 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
x
330
1 Vdrop
=
%Vdrop
=
5.245
V
5.245
x
240
100
=
2.19
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrelcage Motor
=
102
A
( 6 Times the full load current)
Drop at the time of Starting 102 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
x
330
1 Vdrop
=
%Vdrop
=
31.471
V
31.471
x
240
100
=
13.12
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
35 13.2*√.2
=
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x35sq.mm, Al cond uct or, Arm our ed, XLPE cable is selected
82 of 284
HZL-BTN-ELE-DS-SY-037 EOT Crane (Area - E) 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.25
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
300
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder I FL
P
=
5.25 / 0.8
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 25 sq.mm1 Run Cable
=
0.65 96*1*0.65
= =
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0015 153 3 x 0.8) 0.8) + (0. (0.00 0000 0080 805 5 x 0.6) 0.6)))
x
300
1 3.817 3.817 240
V x
100
=
1.6
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
60
A
( 6 Times the full load current)
Drop at the time of Starting Vdrop
=
60
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
1 83 of 284
x
300
HZL-BTN-ELE-DS-SY-037
Vdrop
=
%Vdrop
=
22.901
V
22.901
x
240
100
=
9.55
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
25 13.2*√.2
=
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected
84 of 284
HZL-BTN-ELE-DS-SY-037
LT CABLE SIZING CALCULATION Zn SCA VENGER TAILS PUMPS - VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
110
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
304
m
1.04 AC resistance of the cable at 90°C
R
=
0.161
1.05 Reactance of the cable at 50Hz
X
=
0.071
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder IFL
P
=
110 / 0.8
=
√3 x V
=
0.95x√3 x 0.415
20 201
A
Size of 240 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 240 sq.mm1 Run Cable
=
0.65 399*1*0.65
= =
259 A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
201 Vdrop
=
x
((0. ((0.00 0001 0161 61 x 0.8 0.8)) + (0.0 (0.000 0007 071 1 x 0.6 0.6)) ))
x
1 Vdrop
=
%Vdrop
=
10.473 10.473 240
V x
100
=
4.37
%
With in the Permissible limi t of 5% voltage drop hence ok 3.02 Check for Starting Current For VFD
=
603
A
( 3 Times the full load current)
85 of 284
304
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 603 Vdrop
=
x
((0.000161 x 0.8) + (0.000071 x 0.6))
x
304
1 Vdrop
=
%Vdrop
=
31.42
V
31.42
x
240
100
=
13.1
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
240
=
13.2x√t
=
13.2*√.2
40.7
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x240sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Zn REGRIND MILL DISCHARGE PUMPS - VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
110
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
289
m
1.04 AC resistance of the cable at 90°C
R
=
0.161
1.05 Reactance of the cable at 50Hz
X
=
0.071
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
110 / 0.8
√3 x V x η
=
=
0.95x√3 x 0.415
201
A
Size of 240 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 240 sq.mm1 Run Cable
=
0.65 399*1*0.65
= =
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
n Where, 86 of 284
x
L
259 A
HZL-BTN-ELE-DS-SY-037 cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
201 Vdrop
=
x
((0.000161 x 0.8) + (0.000071 x 0. 0.6))
x
289
1 Vdrop
=
%Vdrop
=
9.956
V
9.956
x
240
100
=
4.15
%
With in the Permissible limi t of 5% voltage drop hence ok 3.02 Check for Starting Current For VFD
603
=
A
( 3 Times the full load current)
Drop at the time of Starting 603 Vdrop
=
x
((0.000161 x 0.8) + (0.000071 x 0.6))
x
289
1 Vdrop
=
%Vdrop
=
29.869
V
29.869
x
240
100
=
12.45
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
240
=
13.2x√t
=
13.2*√.2
40.7
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x240sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Zn Rougher cell 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
285
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
=
90 / 0.8
√3 x V x η
=
0.95x√3 x 0.415
=
165
A
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
87 of 284
HZL-BTN-ELE-DS-SY-037 Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty
=
Current carrying carrying capacity capacity of 185 sq.mm2 sq.mm2 Run Cable 2.03 Current
0.65
= 337*2*0.65 337*2*0.65 438 A
= 3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x
(R cos Φ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
165 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
285
2 Vdrop
=
%Vdrop
=
4.963
V
4.963
x
240
100
=
2.07
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
990
=
A
( 6 Times the full load current)
Drop at the time of Starting 990
Vdrop
=
Vdrop
=
%Vdrop
=
x
2 29.778
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
285
V
29.778
x
240
100
=
12.41
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
185 13.2*√.2
=
31.3
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Zn Rougher cell 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
290
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 88 of 284
HZL-BTN-ELE-DS-SY-037 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
=
90 / 0.8 =
√3 x V x η
=
0.95x√3 x 0.415
165
A
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 185 sq.mm2 Run Cable
=
0.65 337*2*0.65
= =
438 A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x
(R cosΦ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
165 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
290
2 %Vdrop
=
%Vdrop
=
2
x
240 0.84
100
=
0.84
%
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
=
990
A
( 6 Times the full load current)
Drop at the time of Starting 990
Vdrop
=
Vdrop
=
%Vdrop
=
x
2 30.301
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
290
V
30.301
x
240
100
=
12.63
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
185 13.2*√.2
=
31.3
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Zn Rougher cell 3 89 of 284
HZL-BTN-ELE-DS-SY-037 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
295
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
90 / 0.8
=
=
=
√3 x V x η
165
A
0.95x√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient 2.02 Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty Current carrying carrying capacity capacity of 185 sq.mm2 sq.mm2 Run Cable 2.03 Current
=
0.65
= 337*2*0.65 337*2*0.65 =
438 A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x
(R cos Φ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
165
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
295
2 5.137 5.137 240
V x
100
=
2.15
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
=
990
A
( 6 Times the full load current)
Drop at the time of Starting 990 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
2 Vdrop
=
30.823
V 90 of 284
x
295
HZL-BTN-ELE-DS-SY-037 %Vdrop
30.823
=
x
240
100
=
12.85
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
185
=
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Zn scavenger cell 4 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
300
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
90 / 0.8
=
=
√3 x V x η
=
165
A
0.95x√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient 2.02 Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 185 sq.mm2 Run Cable
=
0.65 337*2*0.65
= =
438 A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cos Φ + X sinΦ)
x
L
n Where, cosΦ sinΦ
= =
0.8 0.6
(Assumed)
165 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6 0.6)) ))
2 91 of 284
x
300
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
5.224
V
5.224
x
240
100
=
2.18
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
990
=
A
( 6 Times the full load current)
Drop at the time of Starting 990 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
300
2 Vdrop
=
%Vdrop
=
31.345 31.345 240
V x
100
=
13.07
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable s 185 Iw = = 13.2x√t 13.2*√.2
=
31.3
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Zn Concentrate Filter feed pumps 1 - VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
330
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
55 / 0.8
=
=
√3 x V x η
=
101
A
√3 x 0.415x 0.95
Size of 120 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 120 sq.mm1 Run Cable 92 of 284
= =
0.65 257*1*0.65
HZL-BTN-ELE-DS-SY-037 167 A
= 3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
101 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
330
1 Vdrop
=
%Vdrop
=
10.036 10.036 240
V x
100
=
4.19
%
With in the Permissible limi t of 5% voltage drop hence ok 3.02 Check for Starting Current For VFD
=
303
A
( 3 Times the full load current)
Drop at the time of Starting 303
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
330
1 30.109 30.109 240
V x
100
=
12.55
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable s 120 Iw = = 13.2x√t 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Zn Cleaner II Concentrate Froth Pump 1.00 INPUT DATA 1.01 Feeder Load 1.02
Voltage rating
1.03 Length of the cable 1.04 AC resistance of the cable at 90°C 1.05 Reactance of the cable at 50Hz 1.06 Allowable Voltage Drop at normal running cond. 1.07 Allowable Voltage Drop at Starting Condition 1.08 Current derating factors
P VT
=
45
kW
=
0.415
kV
L
=
268
m
R
=
X
=
Ω / km 0.0716 Ω / km 0.264
=
2.5
%
=
15
%
=
0.65
82
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
=
45 / 0.8 =
√3 x V x η
= 0.95*√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. 93 of 284
HZL-BTN-ELE-DS-SY-037 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty
=
2.03 Current carrying capacity of 150 sq.mm1 Run Cable
0.65 292*1*0.65
=
190 A
= 3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
=
x
(R cosΦ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 5.585
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6) 0.6)))
x
268
V
5.585
x
240
100
=
2.33
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
492
=
A
( 6 Times the full load current)
Drop at the time of Starting 492
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
268
1 33.513
V
33.513
x
240
100
=
13.97
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
150 13.2*√.2
=
25.4
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Zn Cleaner tail pump - VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
280
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
Voltage rating
94 of 284
Ω / km
HZL-BTN-ELE-DS-SY-037 1.05 Reactance of the cable at 50Hz
X
Ω / km
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
45 / 0.8
=
=
=
√3 x V
0.95x√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02 Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
116 A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
x
(R cosΦ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 11.397 11.397 240
((0.000565 x 0.8) + (0.000074 x 0. 0.6))
x
280
V x
100
=
4.75
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current For VFD
=
246
A
( 3 Times the full load current)
Drop at the time of Starting 246
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 34.192 34.192 240
((0. ((0.00 0005 0565 65 x 0.8) 0.8) + (0.0 (0.000 0007 074 4 x 0.6) 0.6)))
x
280
V x
100
=
14.25
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable 95 of 284
HZL-BTN-ELE-DS-SY-037 Iw
s 13.2x√t
=
70 13.2*√.2
=
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al con ductor , Armour ed, XLPE XLPE cable is selected selected Zn Concentrate filter 1 Hydrralic Hydrralic unit 1.00 INPUT DATA 1.01 Feeder Load
P
=
45
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
313
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
82
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
45 / 0.8
=
=
=
√3 x V
√3 x 0.415x 0.95
Size of 185 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient 2.02 Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 185 sq.mm1 Run Cable
=
0.65 337*1*0.65
= =
219 A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
82
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6 0.6)) ))
x
1 5.418 5.418 240
V x
100
=
2.26
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
=
492
A
( 6 Times the full load current)
96 of 284
313
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 492
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
313
1 32.505
V
32.505
x
240
100
=
13.55
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
185
=
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected Conveyor 5 1.00 INPUT DATA 1.01 Feeder Load
P
=
30
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
480
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
55
A
2.00 Calculation 2.01 Full load current rating of the Feeder P IF L
=
30 / 0.8 =
√3 x V
=
0.95x√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty
=
2.03 Current carrying capacity of 185 sq.mm1 Run Cable
0.65 = =
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
x
(R cosΦ + X sinΦ)
n
Where, cosΦ
=
0.8
(Assumed) 97 of 284
x
L
337x1x0.65 219 A
HZL-BTN-ELE-DS-SY-037 sinΦ
=
0.6
55 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
480
1 Vdrop
=
%Vdrop
=
5.573
V
5.573
x
240
100
=
2.33
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
330
=
A
( 6 Times the full load current)
Drop at the time of Starting 330 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0.0 (0.000 0007 0718 18 x 0.6) 0.6)))
x
480
1 Vdrop
=
%Vdrop
=
33.435
V
33.435
x
240
100
=
13.94
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
13.2x√t
185
=
13.2*√.2
=
31.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected STOCKPILE AREA DSP SYSTEM PUMP PUMP 1.00 INPUT DATA 1.01 Feeder Load
P
=
30
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
560
m
1.04 AC resistance of the cable at 90°C
R
=
0.161
1.05 Reactance of the cable at 50Hz
X
=
0.071
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
55
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load current rating of the Feeder P IF L
=
30 / 0.8 =
√3 x V
= 0.95x√3 x 0.415
Size of 240 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) 98 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty
=
2.03 Current carrying capacity of 240 sq.mm1 Run Cable
0.65 =
399x1x0.65 259 A
= 3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
55 Vdrop
=
x
((0.000161 x 0.8) + (0.000071 x 0.6))
x
560
1 Vdrop
=
%Vdrop
=
5.279
V
5.279
x
240
100
=
2.2
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
330
=
A
( 6 Times the full load current)
Drop at the time of Starting 330 Vdrop
=
x
((0.000161 x 0.8) + (0.000071 x 0.6))
x
560
1 Vdrop
=
%Vdrop
=
31.675
V
31.675
x
240
100
=
13.2
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
240 13.2*√.2
=
40.7
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x240sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected
Conveyor 07 - Sag Sag mill feed conveyor 1.00 INPUT DATA 1.01 Feeder Load
P
=
22
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
288
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
Voltage rating
99 of 284
Ω / km
HZL-BTN-ELE-DS-SY-037 1.05 Reactance of the cable at 50Hz
X
Ω / km
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
40
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
22 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty
=
0.65
= 179x1x0.65
2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
116 A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
x
(R cosΦ + X sinΦ)
x
L
n
Where,
Vdrop
=
Vdrop
=
%Vdrop
=
cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
40
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6 0.6)) ))
x
288
1 5.719 5.719 240
V x
100
=
2.39
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
=
240
A
( 6 Times the full load current)
Drop at the time of Starting 240
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8) 0.8) + (0.0 (0.000 0007 074 4 x 0.6) 0.6)))
x
288
1 34.311 34.311 240
V x
100
=
14.3
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable 100 of 284
HZL-BTN-ELE-DS-SY-037 Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al con ductor , Armour ed, XLPE XLPE cable is selected selected Sag Sag mill dis charge classification scr een een 1.00 INPUT DATA 1.01 Feeder Load
P
=
22
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
255
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
40
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder IF L
P
=
22 / 0.8
=
√3 x V x η
=
0.95x√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty
=
0.65
= 179x1x0.65
2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
116 A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
x
(R cos Φ + X sinΦ)
x
L
n
Where,
Vdrop
=
Vdrop
=
%Vdrop
=
cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
40
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
1 5.063 5.063 240
V x
100
=
2.11
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
=
240
A
( 6 Times the full load current)
101 of 284
255
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 240
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
255
1 30.38
V
30.38
x
240
100
=
12.66
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al con ductor , Armour ed, XLPE XLPE cable is selected selected Pb Scav. Froth & Pb cleaner I Tailing Pump 1(VFD) 1.00 INPUT DATA 1.01 Feeder Load
P
=
22
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
328
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
40
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
=
22 / 0.8
√3 x V x η
=
=
0.95x√3 x 0.415
Size of 50 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 50 sq.mm1 Run Cable
=
0.65 142*1*0.65
= =
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
x
n Where, 102 of 284
L
92
A
HZL-BTN-ELE-DS-SY-037 cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
40 Vdrop
=
x
((0. ((0.00 0008 0818 18 x 0.8 0.8)) + (0.0 (0.000 0007 075 5 x 0.6 0.6)) ))
x
328
1 Vdrop
=
%Vdrop
=
9.176
V
9.176
x
240
100
=
3.83
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current For VFD
120
=
A
( 3 Times the full load current)
Drop at the time of Starting 120
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
x
328
1 27.528
V
27.528
x
240
100
=
11.47
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
50
=
13.2x√t
=
13.2*√.2
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al con ductor , Armour ed, XLPE XLPE cable is selected selected Zn Rougher Spillage Pump 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
291
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
15 / 0.8
=
=
√3 x V x η
= 0.95x√3 x 0.415
Size of 50 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
103 of 284
HZL-BTN-ELE-DS-SY-037 Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty
=
2.03 Current carrying capacity of 50 sq.mm1 Run Cable
0.65 142*1*0.65
=
92
=
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x
(R cos Φ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0008 0818 18 x 0.8 0.8)) + (0.0 (0.000 0007 075 5 x 0.6 0.6)) ))
x
291
1 5.495
V
5.495
x
240
100
=
2.29
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
162
=
A
( 6 Times the full load current)
Drop at the time of Starting 162
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 32.971
((0.000818 x 0.8) + (0.000075 x 0.6))
x
291
V
32.971
x
240
100
=
13.74
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s
=
13.2x√t
50 13.2*√.2
=
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al con ductor , Armour ed, XLPE XLPE cable is selected selected Pb Concent rate Filter f eed Pumps No.20 (VFD) (VFD) 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
290
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder 104 of 284
HZL-BTN-ELE-DS-SY-037 P IF L
=
15 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
27
A
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 25 sq.mm1 Run Cable
=
0.65 96*1*0.65
= =
62
A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
290
1 Vdrop
=
%Vdrop
=
9.962
V
9.962
x
240
100
=
4.16
%
Permissible volt age drop is 5% on 240V 240V basis basis h ence ok 3.02 Check for Starting Current For VFD
81
=
A
( 3 Times the full load current)
Drop at the time of Starting Vdrop
=
Vdrop
=
%Vdrop
=
81
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
290
1 29.886
V
29.886
x
240
100
=
12.46
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
25 13.2*√.2
=
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 4C 4C x25sq.mm, x25sq.mm, Al con ductor , Armoured, XLPE cable cable is selected
105 of 284
HZL-BTN-ELE-DS-SY-037 Pb filter area spillage pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
365
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
=
15 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 70 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
116 A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x
(R cos Φ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6 0.6)) ))
x
365
1 4.892 4.892 240
V x
100
=
2.04
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting Vdrop
162 =
x
((0.000565 x 0.8) + (0.000074 x 0.6))
1 106 of 284
x
365
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
29.352
V
29.352
x
240
100
=
12.23
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al con ductor , Armour ed, XLPE XLPE cable is selected selected Zn Cleaner III Concentrate Froth pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IF L
55 / 0.8
=
=
=
√3 x V 2.02
10 101
A
0.95*√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total factor factor to be applie applied d for for arri arrivin ving g the the capaci capacity ty 2.03 Current carrying capacity of 185 sq.mm1 Run Cable
=
0.65 337*1*0.65
= =
3.00 Check for voltage drop 3.01 Vo lt lt a e d ro ro IFL Vdrop = x n
(R cosΦ + X sinΦ)
x
219 A
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
101 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6 0.6)) ))
1 107 of 284
x
260
HZL-BTN-ELE-DS-SY-037
Vdrop
=
%Vdrop
=
5.543
V
5.543
x
240
100
=
2.31
%
With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
=
606
A
( 6 Times the full load current)
Drop at the time of Starting 606 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0.0 (0.000 0007 0718 18 x 0.6) 0.6)))
x
260
1 Vdrop
=
%Vdrop
=
33.258
V
33.258
x
240
100
=
13.86
%
With in the Permissible limi t of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
185 13.2*√.2
=
31.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE XLPE cable is selected
108 of 284
HZL-BTN-ELE-DS-SY-037
LT CABLE SIZING CALCULATION
Zn scavenger cell 5 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
305
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
90 / 0.8
=
=
=
√3 x V x η 2.02
165
A
0.95x√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 185 sq.mm2 Run Cable
=
0.65 337*2*0.65
= =
438 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
165 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
2 Vdrop
=
%Vdrop
=
5.311 5.311 240
V x
100
=
2.22
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
990
A
( 6 Times the full load current)
109 of 284
305
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 990 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
305
2 Vdrop
=
%Vdrop
=
31.868
V
31.868
x
240
100
=
13.28
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
185
=
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Scavenger cell 6 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
310
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
90 / 0.8
=
=
√3 x V x η
=
165
A
0.95x√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 185 sq.mm2 Run Cable
=
0.65 337 x 2 x 0.65
= =
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
= n
110 of 284
L
438 A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
165 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6) 0.6)))
x
310
2 Vdrop
=
%Vdrop
=
5.398
V
5.398
x
240
100
=
2.25
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
990
=
A
( 6 Times the full load current)
Drop at the time of Starting 990 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
310
2 Vdrop
=
%Vdrop
=
32.39
V
32.39
x
240
100
=
13.5
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
185
=
13.2x√t
13.2*√.2
=
31.3
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Scavenger cell 7 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
315
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
√3 x V x η
90 / 0.8 =
0.95x√3 x 0.415
=
165
A
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) 111 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 185 sq.mm2 Run Cable
0.65 337*2*0.65
=
438 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
x (R cos Φ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
165 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
315
2 Vdrop
=
%Vdrop
=
5.485
V
5.485
x
240
100
=
2.29
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
990
=
A
( 6 Times the full load current)
Drop at the time of Starting 990 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
315
2 Vdrop
=
%Vdrop
=
32.913
V
32.913
x
240
100
=
13.72
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
185 13.2*√.2
=
31.3
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Scavenger cell 8 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
320
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
112 of 284
HZL-BTN-ELE-DS-SY-037 1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
90 / 0.8
=
=
=
√3 x V x η
165
A
0.95x√3 x 0.415
Size of 185 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
Curren entt carr carryi ying ng capa capaci city ty of 185 185 sq.m sq.mm2 m2 Run Run Cabl Cable e 2.03 Curr
0.65
=
337 337 x 2 x 0.65 0.65 =
438 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
x (R cos Φ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
165 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6) 0.6)))
x
320
2 Vdrop
=
%Vdrop
=
5.573
0 240
V
x
100
=
0
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrelcage Motor
=
990
A
( 6 Times the full load current)
Drop at the time of Starting 990 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
320
2 Vdrop
=
%Vdrop
=
33.435 33.435 240
V x
100
=
13.94
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
113 of 284
HZL-BTN-ELE-DS-SY-037 3.03 Short Time rating of the Cable Cable Iw
s
=
185
=
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Rougher Concentrate Forth Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
320
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0716 Ω / km 0.264
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
75 / 0.8
=
=
=
√3 x V x η 2.02
137
A
0.95x√3 x 0.415
Size of 150 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 150
1.0
292 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 150 sq.mm2 Run Cable
=
0.65 292*2*0.65
= =
380 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0. ((0.00 0002 0264 64 x 0.8 0.8)) + (0.0 (0.000 0007 0716 16 x 0.6 0.6)) ))
2 Vdrop
=
%Vdrop
=
5.571 5.571 240
V x
100
=
2.33
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 114 of 284
x
320
HZL-BTN-ELE-DS-SY-037
3.02 Check Check for Starting Current DOL or Squirrelcage Motor
822
=
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0.000264 x 0.8) + (0.0000716 x 0.6))
x
75
2 Vdrop
=
%Vdrop
=
33.427
V
33.427
x
240
100
=
13.93
%
It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
3.03 With in the Permissible limit of 15% voltage drop hence ok Short Time rating of the Cable Cable Iw
s
=
150
=
13.2x√t
=
13.2*√.2
25.4
KA/0.2Sec
(Fuse Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x150sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Cleaner I Cell 9 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
285
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
75 / 0.8
=
=
√3 x V x η
=
137
A
0.95*√3 x 0.415
Size of 300 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 300 sq.mm1 Run Cable
=
0.65 455*1*0.65
= =
115 of 284
296 A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
x (R cos Φ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
285
1 Vdrop
=
%Vdrop
=
5.681
V
5.681
x
240
100
=
2.37
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
822
=
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0. ((0.00 0001 0129 29 x 0.8 0.8)) + (0.0 (0.000 0007 0705 05 x 0.6 0.6)) ))
x
285
1 Vdrop
=
%Vdrop
=
34.086
V
34.086
x
240
100
=
14.21
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
300
=
13.2x√t
13.2*√.2
=
50.8
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Cleaner I Cell 10 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
290
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
75 / 0.8 =
√3 x V x η
= 0.95*√3 x 0.415 116 of 284
137
A
HZL-BTN-ELE-DS-SY-037
Size of 300 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 300 sq.mm1 Run Cable
0.65 455*1*0.65
= =
296 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
290
1 Vdrop
=
%Vdrop
=
5.781
V
5.781
x
240
100
=
2.41
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
822
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0. ((0.00 0001 0129 29 x 0.8 0.8)) + (0.0 (0.000 0007 0705 05 x 0.6 0.6)) ))
x
290
1 Vdrop
=
%Vdrop
=
34.684
V
34.684
x
240
100
=
14.46
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
300 13.2*√.2
=
50.8
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armou red, XLPE cable is selected
117 of 284
HZL-BTN-ELE-DS-SY-037 Zn Cleaner I Cell 11 1.00 INPUT DATA 1.01 Feeder Load
P
=
75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
295
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
75 / 0.8 =
√3 x V x η
=
0.95*√3 x 0.415
137
A
Size of 300 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.04 Current carrying capacity of 300 sq.mm1 Run Cable
=
0.65 455*1*0.65
= =
296 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
137 Vdrop
=
x
((0. ((0.00 0001 0129 29 x 0.8 0.8)) + (0.0 (0.000 0007 0705 05 x 0.6 0.6)) ))
x
295
1 Vdrop
=
%Vdrop
=
5.88 5.88 240
V x
100
=
2.45
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
822
A
( 6 Times the full load current)
Drop at the time of Starting 822 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
1 118 of 284
x
295
HZL-BTN-ELE-DS-SY-037
Vdrop
=
%Vdrop
=
35.282
V
35.282
x
240
100
=
14.71
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
300
=
13.2x√t
=
13.2*√.2
50.8
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armo ured, XLPE cable is selected Zn Concentrate Concentrate Thickener Thickener underflow pum ps - VFD VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
22
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
328
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
40
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
22 / 0.8
=
=
√3 x V
=
√3 x 0.415x 0.95
Size of 50 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 50 sq.mm1 Run Cable
=
0.65 142*1*0.65
= =
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
n
x (R cosΦ + X sinΦ) x
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
119 of 284
L
92
A
HZL-BTN-ELE-DS-SY-037
40 Vdrop
=
x
((0. ((0.00 0008 0818 18 x 0.8 0.8)) + (0.0 (0.000 0007 075 5 x 0.6) 0.6)))
x
328
1 Vdrop
=
%Vdrop
=
9.176
V
9.176
x
240
100
=
3.83
%
3.02 With in the Permissible limit of 5% voltage drop hence ok Check Check for Starting Current For VFD
120
=
A
( 3 Times the full load current)
Drop at the time of Starting 120 Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
x
328
1 Vdrop
=
%Vdrop
=
27.528
V
27.528
x
240
100
=
11.47
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
50
=
13.2x√t
13.2*√.2
=
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Lime circuit cyclone feed pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
22
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
320
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0724 Ω / km 0.409
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
40
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
22 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 95 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
95
1.0
221 A
(Ref : Power Engineers Handbook 25.66, Table 57) 120 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 95 sq.mm,1 Run Cable
0.65 221*1*0.65
=
144 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
x (R cos Φ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
40 Vdrop
=
x
((0.000409 x 0.8) + (0.0000724 x 0.6))
x
320
1 Vdrop
=
%Vdrop
=
4.744
V
4.744
x
240
100
=
1.98
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
240
=
A
( 6 Times the full load current)
Drop at the time of Starting 240 Vdrop
=
x
((0.000409 x 0.8) + (0.0000724 x 0.6))
x
320
2 Vdrop
=
%Vdrop
=
12.761
V
12.761
x
240
100
=
5.32
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
95 13.2*√.2
=
16.1
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x95sq.mm, x95sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Wet Type Fan in Main MCC 1.00 INPUT DATA 1.01 Feeder Load
P
=
20
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
121 of 284
HZL-BTN-ELE-DS-SY-037 1.08 Current derating factors
=
0.65
37
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
20 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
37 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
1.48 1.48 240
V x
100
=
0.62
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
222
A
( 6 Times the full load current)
Drop at the time of Starting 222 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
20
2 Vdrop
=
%Vdrop
=
4.441 4.441 240
V x
100
=
1.86
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
122 of 284
HZL-BTN-ELE-DS-SY-037 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Total Power for +AL2 Cabinet Cabinet 1.00 INPUT DATA 1.01 Feeder Load
P
=
20
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop
Ω / km 0.0805 Ω / km 1.53
=
5
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
20 / 0.8
=
=
=
√3 x V 2.02
35
A
√3 x 0.415
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 25 sq.mm1 Run Cable
0.65 = =
96x1x0.65 62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
35 Vdrop
=
x
((0. ((0.00 0015 153 3 x 0.8) 0.8) + (0. (0.00 0000 0080 805 5 x 0.6) 0.6)))
1 Vdrop
=
%Vdrop
=
11.578 11.578 240
V x
100
=
4.83
%
3.02 With in the Permissible limit of 5% voltage drop hence ok
123 of 284
x
260
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw
s
=
25
=
13.2x√t
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
3.03 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Zn Rougher Spillage Pump 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
18.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
286
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
34
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
18.5 / 0.8
=
=
=
√3 x V
0.95x√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179 x 1 x 0.65
= =
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
34 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
1 Vdrop
=
%Vdrop
=
4.827 4.827 240
V x
100
=
2.02
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 124 of 284
x
286
HZL-BTN-ELE-DS-SY-037
3.02 Check Check for Starting Current DOL or Squirrelcage Motor
204
=
A
( 6 Times the full load current)
Drop at the time of Starting 204 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6)) .6))
x
286
1 Vdrop
=
%Vdrop
=
28.962
V
28.962
x
240
100
=
12.07
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Zn Cleaner spillage Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
18.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
325
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
30
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
18.5 / 0.8
=
=
√3 x V
= 0.95x√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
125 of 284
116 A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
30 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6) 0.6)))
x
325
1 Vdrop
=
%Vdrop
=
4.84
V
4.84
x
240
100
=
2.02
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
180
=
A
( 6 Times the full load current)
Drop at the time of Starting 180 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
325
1 Vdrop
=
%Vdrop
=
29.039
V
29.039
x
240
100
=
12.1
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x70sq.mm, Al cond uct or, Arm our ed, XLPE cable is selected Zn Cleaner area spillage pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
18.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
265
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
34
A
Voltage rating
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
18.5 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415 126 of 284
Ω / km Ω / km
HZL-BTN-ELE-DS-SY-037
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 70 sq.mm1 Run Cable
0.65 179*1*0.65
= =
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
34 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6) 0.6)))
x
265
1 Vdrop
=
%Vdrop
=
4.473
V
4.473
x
240
100
=
1.87
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
204
A
( 6 Times the full load current)
Drop at the time of Starting 204 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
265
1 Vdrop
=
%Vdrop
=
26.835
V
26.835
x
240
100
=
11.19
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
70 13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x70sq.mm, Al cond uct or, Arm our ed, XLPE cable is selected
127 of 284
HZL-BTN-ELE-DS-SY-037 Pb Concentrate Storage tank agitator 1.00 INPUT DATA 1.01 Feeder Load
P
=
18.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
325
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
34
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
18.5 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 70 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
34 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6) 0.6)))
x
325
1 Vdrop
=
%Vdrop
=
5.485 5.485 240
V x
100
=
2.29
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
204
A
( 6 Times the full load current)
Drop at the time of Starting 204 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
1 128 of 284
x
325
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
32.911
V
32.911
x
240
100
=
13.72
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected PB CONCENTRATE CONCENTRATE FILTER HYDRALIC UNIT 1.00 INPUT DATA 1.01 Feeder Load
P
=
18.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
292
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
32
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
18.5 / 0.8
=
=
=
√3 x V
√3 x 0.415
Size of 70 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
129 of 284
L
116 A
HZL-BTN-ELE-DS-SY-037 32 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
292
1 Vdrop
=
%Vdrop
=
4.638
V
4.638
x
240
100
=
1.94
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
192
=
A
( 6 Times the full load current)
Drop at the time of Starting 192 Vdrop
=
x
((0. ((0.0 00056 00565 5 x 0.8) 0.8) + (0. (0.00 0000 0074 74 x 0. 0.6)) 6))
x
292
1 Vdrop
=
%Vdrop
=
27.83
V
27.83
x
240
100
=
11.6
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x70sq.mm, x70sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected PB FILTER MANIFOLD WA SH WATER PUMPS 1.00 INPUT DATA 1.01 Feeder Load
P
=
18.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
368
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0724 Ω / km 0.409
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
34
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
18.5 / 0.8
=
=
√3 x V
=
√3 x 0.415x 0.95
Size of 95 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
95
1.0
221 A
(Ref : Power Engineers Handbook 25.66, Table 57)
130 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 95 sq.mm1 Run Cable
0.65 221*1*0.65
=
144 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
34
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.000409 x 0.8) + (0.0000724 x 0.6))
x
368
1 4.637
V
4.637
x
240
100
=
1.94
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor Drop at the time of Starting
204
=
A
( 6 Times the full load current)
204 Vdrop
=
x
((0.000409 x 0.8) + (0.0000724 x 0.6))
x
368
1 Vdrop
=
%Vdrop
=
27.825
V
27.825
x
240
100
=
11.6
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s
=
13.2x√t
95 13.2*√.2
=
16.1
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x95sq.mm, x95sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb Concentrate stockpil e area area spillage pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
18.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
295
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
Voltage rating
131 of 284
Ω / km Ω / km
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
18.5 / 0.8
=
=
=
√3 x V
34
A
√3 x 0.415x 0.95
Size of 70sq.mm 3.5 core Aluminium cable is is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 70 sq.mm1 Run Cable
0.65 179*1*0.65
= =
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
x (R cos Φ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
34 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
295
1 Vdrop
=
%Vdrop
=
4.979
V
4.979
x
240
100
=
2.08
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
204
A
( 6 Times the full load current)
Drop at the time of Starting 204 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
295
1 Vdrop
=
%Vdrop
=
29.873
V
29.873
x
240
100
=
12.45
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
70 13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected 132 of 284
HZL-BTN-ELE-DS-SY-037 Tailings Tailings t hickener underflow pu mps -VFD -VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
18.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
349
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
34
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
18.5 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 70sq.mm,1 Run Cable
=
0.65 117*1*0.65
= =
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cos Φ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
34 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
x
349
1 Vdrop
=
%Vdrop
=
11.094 11.094 240
V x
100
=
4.63
%
With in the Permissible limit of 5% voltage drop hence ok 3.02 Check Check for Starting Current For VFD
=
102
A
( 3 Times the full load current)
Drop at the time of Starting Vdrop
102 =
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
1 133 of 284
x
349
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
33.283
V
33.283
x
240
100
=
13.87
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
35
=
13.2x√t
=
13.2*√.2
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Conveyor 6 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
332
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
15 / 0.8
=
=
=
√3 x V
0.95x√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of sq.mm1 Run Cable
0.65 = =
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
= n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
134 of 284
L
179x1x0.65 116 A
HZL-BTN-ELE-DS-SY-037 27 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
332
1 Vdrop
=
%Vdrop
=
4.45
V
4.45
x
240
100
=
1.86
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
162
=
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
332
1 Vdrop
=
%Vdrop
=
26.698
V
26.698
x
240
100
=
11.13
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb Rougher Rougher conc entrate froth pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
295
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
15 / 0.8
=
=
√3 x V
= 0.95*√3 x 0.415
Size of 50 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57)
135 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 142x1x0.65
2.03 Current carrying capacity of sq.mm1 Run Cable
92
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
x
295
1 Vdrop
=
%Vdrop
=
5.571
V
5.571
x
240
100
=
2.33
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
162
=
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
x
295
1 Vdrop
=
%Vdrop
=
33.424
V
33.424
x
240
100
=
13.93
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
50 13.2*√.2
=
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb Float area spillage pump s 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
334
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
Voltage rating
136 of 284
Ω / km Ω / km
HZL-BTN-ELE-DS-SY-037
1.08 Current derating factors
=
0.65
27
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
15 / 0.8
=
=
=
√3 x V
0.95*√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 179x1x0.65
2.03 Current carrying capacity of sq.mm Run Cable
=
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
334
1 Vdrop
=
%Vdrop
=
4.477 4.477 240
V x
100
=
1.87
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6)) .6))
x
334
1 Vdrop
=
%Vdrop
=
26.859 26.859 240
V x
100
=
11.2
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
137 of 284
HZL-BTN-ELE-DS-SY-037 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb Cleaner III cell 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
307
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
15 / 0.8
=
=
=
√3 x V
0.95x√3 x 0.415
Size of 50 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 50 sq.mm1 Run Cable
=
0.65 142*1*0.65
= =
92
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cos Φ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0008 0818 18 x 0.8 0.8)) + (0.0 (0.000 0007 075 5 x 0.6) 0.6)))
1 5.797 5.797 240
V x
100
=
2.42
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 138 of 284
x
307
HZL-BTN-ELE-DS-SY-037
3.02 Check Check for Starting Current DOL or Squirrelcage Motor
162
=
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0. ((0.0 00081 00818 8 x 0.8) 0.8) + (0. (0.00 0000 0075 75 x 0. 0.6)) 6))
x
307
1 Vdrop
=
%Vdrop
=
34.784
V
34.784
x
240
100
=
14.5
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
50
=
13.2x√t
=
13.2*√.2
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb Cleaner II Cell 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
315
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
15 / 0.8
=
=
√3 x V
= 0.95x√3 x 0.415
Size of 50 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 50 sq.mm1 Run Cable
=
0.65 142*1*0.65
= =
139 of 284
92
A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
x
315
1 Vdrop
=
%Vdrop
=
5.948
V
5.948
x
240
100
=
2.48
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
162
=
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0.315 x 0.8) + (0.000818 x 0.6))
x
315
1 Vdrop
=
%Vdrop
=
35.69
V
35.69
x
240
100
=
14.88
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
13.2x√t
50
=
13.2*√.2
=
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb Cleaner II Cell 3 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
317
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
15 / 0.8 =
√3 x V
= 0.95x√3 x 0.415 140 of 284
Ω / km Ω / km
HZL-BTN-ELE-DS-SY-037
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 70 sq.mm1 Run Cable
0.65 142*1*0.65
= =
92
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
317
1 Vdrop
=
%Vdrop
=
4.249
V
4.249
x
240
100
=
1.78
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6)) .6))
x
317
1 Vdrop
=
%Vdrop
=
25.492
V
25.492
x
240
100
=
10.63
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
70 13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected
141 of 284
HZL-BTN-ELE-DS-SY-037 Pb Cleaner I cell 4 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
325
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
15 / 0.8
=
=
=
√3 x V
0.95x√3 x 0.415
Size of 70 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0.0 (0.000 0007 074 4 x 0.6) 0.6)))
x
325
1 Vdrop
=
%Vdrop
=
4.356 4.356 240
V x
100
=
1.82
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting Vdrop
162 =
x
((0.000565 x 0.8) + (0.000074 x 0.6))
1 142 of 284
x
325
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
26.135
V
26.135
x
240
100
=
10.89
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb Cleaner I cell 5 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
305
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
15 / 0.8
√3 x V
=
0.95x√3 x 0.415
=
Size of 50 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient 2.02 Cable size Current Rating at 35°C Temperature 35°C 50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty Current carrying carrying capacity capacity of 50 sq.mm1 Run Cable 2.03 Current
=
0.65
= 142*1*0.65 142*1*0.65 =
92
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
1 143 of 284
x
305
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
5.76
V
5.76
x
240
100
=
2.4
%
With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check Check for Starting Current DOL or Squirrelcage Motor
=
162
( 6 Times the full load current)
A
Drop at the time of Starting 162 Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
x
305
1 Vdrop
=
%Vdrop
=
34.557
V
34.557
x
240
100
=
14.4
%
With in the Permissible limit of 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s
50
=
13.2x√t
=
13.2*√.2
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Reagent EOT 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.05
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
240
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
9
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
√3 x V 2.02
5.05 / 0.8 =
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 144 of 284
=
0.65
HZL-BTN-ELE-DS-SY-037 = 70x1x0.65
curren entt car carry ryiing capa capaci city ty of 16sq 16sq.m .mm, m,1R 1Run un cable able 2.03 curr
=
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
9 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
240
1 Vdrop
=
%Vdrop
=
4.321
V
4.321
x
240
100
=
1.81
%
With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Check for Starting Current DOL or Squirrelcage Motor
=
54
A
( 6 Times the full load current)
Drop at the time of Starting 54 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
240
1 Vdrop
=
%Vdrop
=
25.926 25.926 240
V x
100
=
10.81
%
3.03 With in the Permissible limit of 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected
145 of 284
HZL-BTN-ELE-DS-SY-037
LT CABLE SIZING CALCULATION TOTAL POWER FOR +AL2 CABINET (STANDBY BALL MILL) 1.00 INPUT DATA 1.01 Feeder Load
P
=
65
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0724 Ω / km 0.409
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factor
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
2.02
=
65 / 0.8 =
√3 x V
=
√3 x 0.415
113
A
Size of 95 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 95
1.0
221 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 95 sq.mm1 Run Cable
0.65 = =
221x1x0.65 144 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
113
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 10.889
((0.000409 x 0.8) + (0.0000724 x 0.6))
x
260
V
10.889
x
240
100
=
4.54
%
3.02 With in the Permissible limit of 5% voltage drop hence ok Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
95 13.2*√.2
=
16.1
KA/0.2Sec
(Fuse Operated)
3.03 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x95sq.mm, x95sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected 146 of 284
HZL-BTN-ELE-DS-SY-037 TOTAL POWER FOR +AL1 CABINET (STANDBY BALL MILL) 1.00 INPUT DATA 1.01 Feeder Load
P
=
80
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factor
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
80 / 0.8
=
=
=
√3 x V
139
A
√3 x 0.415
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 120 sq.mm1 Run Cable
0.65 = =
257x1x0.65 167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
139 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
260
1 Vdrop
=
%Vdrop
=
10.882
V
10.882
x
240
100
=
4.54
%
3.02 With in the Permissible limit of 5% voltage drop hence ok Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
120 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.03 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected 147 of 284
HZL-BTN-ELE-DS-SY-037 TOTAL POWER FOR +AL2 CABINET (STANDBY SAG MILL) 1.00 INPUT DATA 1.01 Feeder Load
P
=
60
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
245
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0724 Ω / km 0.409
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factor
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
60 / 0.8
=
=
=
√3 x V
104
A
√3 x 0.415
Size of 95 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
95
1.0
221 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 95 sq.mm1 Run Cable
0.65 = =
221x1x0.65 144 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
104 Vdrop
=
x
((0.000409 x 0.8) + (0.0000724 x 0.6))
x
245
1 Vdrop
=
%Vdrop
=
9.444
V
9.444 x
100
=
3.94
%
240
3.02 With in the Permissible limit of 5% voltage drop hence ok Short Time rating of the Cable Cable Iw
s =
13.2x√t
95 =
13.2*√.2
=
16.1
KA/0.2Sec
(Fuse Operated)
3.03 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x95sq.mm, x95sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected 148 of 284
HZL-BTN-ELE-DS-SY-037 TOTAL POWER FOR +AL1 CABINET (STANDBY SAG MILL) 1.00 INPUT DATA 1.01 Feeder Load
P
=
80
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
245
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factor
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
80 / 0.8
=
=
=
√3 x V 2.02
139
A
√3 x 0.415
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 120 sq.mm1 Run Cable
0.65 = =
257x1x0.65 167 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
139 Vdrop
=
x
((0.000323 x 0.8) + (0.0000712 x 0.6))
x
245
1 Vdrop
=
%Vdrop
=
10.255
V
10.255 x
100
=
4.28
%
240
3.02 With in the Permissible limit of 5% voltage drop hence ok Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
120 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.03 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armou red, XLPE cable is selected 149 of 284
HZL-BTN-ELE-DS-SY-037 TAILING DISPOSAL PUMPS - TRAIN 1/TRAIN 2 VFD 1.00 INPUT DATA 1.01 Feeder Load
P
=
90
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
342
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factor
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.02
=
90 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
165
A
Size of 185 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 185 sq.mm,1 Run Cable
=
0.65 337*1*0.65
= =
219 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cos Φ + X sinΦ)
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
165 Vdrop
=
x
((0. ((0.00 0002 021 1 x 0.8) 0.8) + (0. (0.00 0000 0071 718 8 x 0.6) 0.6)))
x
342
1 Vdrop
=
11.911
V
11.911 x 100 = 4.97 % 240 3.02 With in the Permissible limit of 5% voltage drop hence ok Check Check fo r Starting Current (3 Times the full load current) For VFD = 495 A Drop at the time of Starting %Vdrop
=
495 Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
1 Vdrop
=
35.734
V 150 of 284
x
342
HZL-BTN-ELE-DS-SY-037 %Vdrop
35.734
=
x
240
100
=
14.89
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
185
=
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x185sq.mm, Al condu cto r, Armou red, XLPE cable is selected PLANT AIR /FILTER AIR COMPRESSOR 1 /COMPRESSOR 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
132
kW
1.04
VT
=
0.415
kV
1.03 Length of the cable
L
=
327
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
132 / 0.8
=
=
=
√3 x V x η
242
A
√3 x 0.415x 0.95
Size of 300 sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
0.65
= 455x2x0.65
curren entt car carry ryin ing g cap capac acit ity y of of 300 300 sq.m sq.mm m 2 Run Run cabl cable e 2.03 curr
=
592 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x
(R (R cosΦ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
242 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
2 151 of 284
x
327
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
5.757
V
5.757
x
240
100
=
2.4
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current = 1452 A
DOL or Squirrelcage Motor
( 6 Times the full load current)
Drop at the time of Starting 1452 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
327
2 Vdrop
=
%Vdrop
=
34.542
V
34.542
x
240
100
=
14.4
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
300
=
13.2x√t
=
13.2*√1
22.7
KA/0.2Sec
(ACB Operated)
2 runs of 1.1kV grade, 3.5 3.5C C x300 x300 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected Zn Concentrate Storage tank tank agitator 1
1.00 INPUT DATA 1.01 Feeder Load
P
=
55
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
355
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
55 /0.8
=
=
√3 x V x η
=
101
A
√3 x 0.415x 0.95
Size of 300 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
152 of 284
HZL-BTN-ELE-DS-SY-037 Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 300 sq.mm1 Run Cable
0.65 455*1*0.65
=
296 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
101 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
355
1 Vdrop
=
%Vdrop
=
5.217
V
5.217
x
240
100
=
2.18
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
606
=
A
( 6 Times the full load current)
Drop at the time of Starting 606 Vdrop
=
x
((0. ((0.00 000 0129 129 x 0.8) 0.8) + (0. (0.00 0000 0070 705 5 x 0.6 0.6))
x
355
1 %Vdrop
1
=
x
240
100
=
0.42
%
With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Permissi Permissi ble voltage drop is 15% on 240V 240V basis basis hence volt age drop is o k Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
300 13.2*√.2
=
50.8
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armou red, XLPE cable is selected Zn Filter 1 cloth wash water pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02 Voltage rating
VT
=
0.415
kV
1.03 Length of the cable
L
=
325
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder 153 of 284
Ω / km Ω / km
HZL-BTN-ELE-DS-SY-037 P I FL
15 / 0.8
=
=
=
√3 x V 2.02
27
A
√3 x 0.415x 0.95
Size of 70 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
325
1 Vdrop
=
%Vdrop
=
4.356
V
4.356
x
240
100
=
1.82
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0. (0.000565 x 0.8) + (0.000074 x 0.6))
x
325
1 Vdrop
=
%Vdrop
=
26.135
V
26.135
x
240
100
=
10.89
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
70 13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected
154 of 284
HZL-BTN-ELE-DS-SY-037 Zn filter area spillage pump 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
335
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
15 / 0.8
=
=
=
√3 x V 2.02
√3 x 335x 0.95
Size of 70 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
(R cosΦ + X sinΦ)
x
x
L
n
Where,
cosΦ sinΦ
= =
0.8 0.6
(Assumed)
27 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
335
1 Vdrop
=
%Vdrop
=
4.49 4.49 240
V x
100
=
1.88
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
1 155 of 284
x
335
HZL-BTN-ELE-DS-SY-037
Vdrop
=
%Vdrop
=
26.94
V
26.94
x
240
100
=
11.23
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected Zn filter area spillage pump 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
338
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
15 / 0.8
=
=
=
√3 x V
√3 x 0.415x 0.95
Size of 70 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
156 of 284
x
L
116 A
HZL-BTN-ELE-DS-SY-037 27 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
338
1 Vdrop
=
%Vdrop
=
4.53
V
4.53
x
240
100
=
1.89
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok DOL or Squirrelcage Motor
162
=
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0. (0.000565 x 0.8) + (0.000074 x 0.6))
x
338
1 Vdrop
=
%Vdrop
=
27.181
V
27.181
x
240
100
=
11.33
%
With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected
Spillage Pump Pump For Zinc Stockpile Ar ea 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
440
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
15 / 0.8 =
√3 x V
=
√3 x 0.415x 0.95
Size of 70 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
157 of 284
HZL-BTN-ELE-DS-SY-037 Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 70 sq.mm1 Run Cable
0.65 179*1*0.65
=
116 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
(R cosΦ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0. (0.00 0000 0074 74 x 0.6 0.6)) ))
x
440
1 Vdrop
=
%Vdrop
=
5.897
V
5.897
x
240
100
=
2.46
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
162
=
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
440
1 Vdrop
=
%Vdrop
=
35.383
V
35.383
x
240
100
=
14.75
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
70 13.2*√.2
=
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected Tailings Tailings Area Spillage Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
315
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
Voltage rating
158 of 284
Ω / km Ω / km
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder I FL
P
=
15 / 0.8
=
√3 x V
=
√3 x 0.415x 0.95
27
A
Size of 50 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 50 sq.mm,1 Run Cable
=
0.65 142*1*0.65
= =
92
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
(R (R cosΦ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
x
315
1 Vdrop
=
%Vdrop
=
V
5.948 5.948
x
240
100
=
2.48
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting 162
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. (0.000818 x 0.8) + (0.000075 x 0.6))
x
315
1 35.69
V
35.69
x
240
100
=
14.88
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s =
13.2x√t
50 =
13.2*√.2
=
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected 159 of 284
HZL-BTN-ELE-DS-SY-037 Spillage pump in lime area 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
360
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
15 / 0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 70 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
116 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
(R cosΦ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 4.825 4.825 240
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0. (0.00 0000 0074 74 x 0.6 0.6)) ))
x
360
V x
100
=
2.02
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
1 160 of 284
x
360
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
28.95
V
28.95
x
240
100
=
12.07
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected HOT WATER PUMP 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
360
m
1.04 AC resistance of the cable at 90°C
R
=
0.565
1.05 Reactance of the cable at 50Hz
X
=
0.074
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
15 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 70 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
70
1.0
179 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 70 sq.mm1 Run Cable
=
0.65 179*1*0.65
= =
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
161 of 284
x
L
116 A
HZL-BTN-ELE-DS-SY-037 27 Vdrop
=
x
((0. ((0.00 0005 0565 65 x 0.8 0.8)) + (0. (0.00 0000 0074 74 x 0.6 0.6)) ))
x
360
1 Vdrop
=
%Vdrop
=
4.825
V
4.825
x
240
100
=
2.02
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
162
( 6 Times the full load current)
A
Drop at the time of Starting 162 Vdrop
=
x
((0.000565 x 0.8) + (0.000074 x 0.6))
x
360
1 Vdrop
=
%Vdrop
=
28.95
V
28.95
x
240
100
=
12.07
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s
70
=
13.2x√t
=
13.2*√.2
11.9
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x70sq.mm, x70sq.mm, Al c onduct or, Armo ured, XLPE cable cable is s elected elected Nigrosine Spillage Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
195
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
27
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
15 / 0.8 =
√3 x V
=
√3 x 0.415x 0.95
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
162 of 284
HZL-BTN-ELE-DS-SY-037 Factor for Non leaner loads
0.8
=
Tota Totall fac facto torr to to be be app appli lied ed for for arri arrivi ving ng the the cap capac acit ity y curren entt carr carryi ying ng capa capaci city ty of 35sq 35sq.m .mm m,1Ru ,1Run n cable able 2.03 curr
= =
0.65 117x1x0.65 76
=
A
3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
=
x (R cosΦ + X sinΦ)
n
x
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
x
195
1 Vdrop
=
%Vdrop
=
4.923
V
4.923
x
240
100
=
2.06
%
3.02 With in t he Permiss Permiss ible limit of 2.5% 2.5% voltage drop hence ok DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0. (0.00111 x 0.8) + (0.0000783 x 0.6))
x
195
1
3.03
Vdrop
=
%Vdrop
=
29.536
V
29.536
x
240
100
=
12.31
%
With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
3.04
=
s 13.2x√t
=
35
=
13.2*√.2
5.929
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x35 sq.mm, Al co nducto r, Armo ured, XLPE cable cable is selected MIBC Spillage pump
1.00 INPUT DATA 1.01 Feeder Load
P
=
15
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
202
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder 163 of 284
HZL-BTN-ELE-DS-SY-037 P I FL
15 / 0.8
=
=
=
√3 x V
27
A
√3 x 0.415x 0.95
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Tota Totall fac facto torr to to be be app appli lied ed for for arri arrivi ving ng the the cap capac acit ity y curren entt carr carryi ying ng capa capaci city ty of 35sq 35sq.m .mm m,1Ru ,1Run n cable able 2.03 curr
= =
0.65 117x1x0.65 76
=
A
3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ)
=
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
27 Vdrop
=
x
((0. ((0.00 0011 111 1 x 0.8) 0.8) + (0. (0.00 0000 0078 783 3 x 0.6) 0.6)))
x
202
1 Vdrop
=
%Vdrop
=
5.099
V
5.099
x
240
100
=
2.13
%
3.02 With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
162
A
( 6 Times the full load current)
Drop at the time of Starting 162 Vdrop
=
x
((0. (0.00111 x 0.8) + (0.0000783 x 0.6))
x
202
1
3.03
Vdrop
=
%Vdrop
=
30.596 30.596 240
V x
100
=
12.75
%
With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
3.04
=
s 13.2x√t
=
35 13.2*√.2
=
5.929
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x35 sq.mm, Al co nducto r, Armo ured, XLPE cable cable is selected
164 of 284
HZL-BTN-ELE-DS-SY-037 TOTAL POWER FOR AL2 CAB INET CONTROL CONTROL SOURCE (PERMANENT) (PERMANENT) 1.00 INPUT DATA 1.01 Feeder Load
P
=
10
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
1.07 Current derating factors
=
0.65
17
A
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
10 / 0.8
=
=
=
√3 x V
√3 x 0.415
Size of 25 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 25 sq.mm1 Run Cable
0.65 =
96x1x0.65
=
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
17 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
260
1 Vdrop
=
%Vdrop
=
5.624
V
5.624 x
100
=
2.35
%
240
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Short Time rating of the Cable Cable Iw
s =
13.2x√t
25 =
13.2*√.2
=
4.23
KA/0.2Sec
(Fuse Operated)
303 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected 165 of 284
HZL-BTN-ELE-DS-SY-037 TOTAL POWER FOR AL2 CAB INET CONTROL CONTROL SOURCE (PERMANENT) (PERMANENT) 1.00 INPUT DATA 1.01 Feeder Load
P
=
10
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
260
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
1.07 Current derating factors
=
0.65
17
A
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
10 / 0.8
=
=
=
√3 x V
√3 x 0.415
Size of 25 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 25 sq.mm1 Run Cable
0.65 =
96x1x0.65
=
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
17
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0015 153 3 x 0.8) 0.8) + (0. (0.00 0000 0080 805 5 x 0.6) 0.6)))
x
260
1 5.624
V
5.624 x
100
=
2.35
%
240
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Short Time rating of the Cable Cable Iw
s =
13.2x√t
25 =
13.2*√.2
=
4.23
KA/0.2Sec
(Fuse Operated)
3.03 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected 166 of 284
HZL-BTN-ELE-DS-SY-037 Total Power For AL2 Cabinet Control Source (Permanent) (Permanent) 1.00 INPUT DATA 1.01 Feeder Load
P
=
10
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
290
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
1.07 Current derating factors
=
0.65
17
A
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
10 / 0.8
=
=
=
√3 x V
√3 x 0.415
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 35 sq.mm1 Run Cable
0.65 =
117x1x0.65
=
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
(R cosΦ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
17
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0. ((0.00 0011 111 1 x 0.8) 0.8) + (0. (0.00 0000 0078 783 3 x 0.6) 0.6)))
x
290
1 4.609
V
4.609 x
100
=
1.93
%
240
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok
Short Time rating of the Cable Cable Iw
s =
13.2x√t
35 =
13.2*√.2
=
5.93
KA/0.2Sec
(Fuse Operated)
3.03 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected 167 of 284
HZL-BTN-ELE-DS-SY-037
Mill feed feed reciprocating f eeders eeders (VFD (VFD)) 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
270
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
7.5 / 0.8
=
=
=
√3 x V
0.95x√3 x 0.415
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 = =
70x1x0.65 46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
Vdrop
=
%Vdrop
=
x
1 7.562
((0.00244 x 0.8) + (0.0000808 x 0.6))
V
7.562 x
100
=
3.16
%
240 3.02 With in the Permissible limit of 5% voltage drop hence ok Check Check fo r Starting Current For VFD
=
42
A
( 3Times the full load current)
168 of 284
x
270
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
270
1 Vdrop
=
%Vdrop
=
22.685
V
22.685
x
240
100
=
9.46
%
With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Pb conditioner Agitator 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
270
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
7.5 / 0.8
=
=
√3 x V x η
= 0.95x√3 x 0.415
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
0.65
= 96x1x0.65
2.03 Current carrying capacity of sq.mm1 Run Cable
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cosΦ + X sinΦ)
n 169 of 284
x
L
62
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
1 Vdrop
=
%Vdrop
=
4.809
V
4.809
x
240
100
=
2.01
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
84
=
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0. (0.00153 x 0.8) + (0.0000805 x 0.6))
x
270
1 Vdrop
=
%Vdrop
=
28.856
V
28.856
x
240
100
=
12.03
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
25
=
13.2x√t
13.2*√.2
=
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Pb Cleaner I Concentrate Froth Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
329
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.02
=
√3 x V x η
7.5 / 0.8 =
0.95x√3 x 0.415
=
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 25
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 170 of 284
270
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 25 sq.mm1 Run Cable
0.65 70*1*0.65
=
46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cos Φ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
329
1 Vdrop
=
%Vdrop
=
5.86
V
5.86
x
240
100
=
2.45
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
84
=
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
329
1 Vdrop
=
%Vdrop
=
35.161
V
35.161
x
240
100
=
14.66
%
With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 3.03 Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
25 13.2*√.2
=
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Pb Scav Conc Peristatic House FeedPumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.04
VT
=
0.415
kV
1.03 Length of the cable
L
=
285
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop at normal running cond. 171 of 284
=
Ω / km 0.0805 Ω / km 1.53 2.5
%
HZL-BTN-ELE-DS-SY-037 1.07 Allowable Voltage Drop at Starting Condition
=
15
1.08 Current derating factors
=
0.65
14
A
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
7.5 / 0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 25 sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y curren entt car carry ryin ing g cap capac acit ity y of of 25 25 sq. sq.mm mm 1Run 1Run cabl cable e 2.03 curr
=
0.65 96*1*0.65
= =
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cos Φ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
285
1 Vdrop
=
%Vdrop
=
5.076 5.076 240
V x
100
=
2.12
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
84
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
285
1 Vdrop
=
%Vdrop
=
30.459 30.459 240
V x
100
=
12.7
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage 172 of 284
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw 3.04
s
=
25
=
13.2x√t
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, grade, 4C 4C x25 sq.mm, Al condu ctor, Ar moured, XLPE cable is selected Zn Conditi Conditi oner 1 Agitator
1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
250
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
7.5 / 0.8 =
√3 x V x η
=
0.95x√3 x 0.415
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 25 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
(R cos Φ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
1 Vdrop
=
%Vdrop
=
4.453 4.453 240
V x
100
=
1.86
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 173 of 284
x
250
HZL-BTN-ELE-DS-SY-037 Check Check fo r Starting Current DOL or Squirrelcage Motor
84
=
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
250
1 Vdrop
=
%Vdrop
=
26.718
V
26.718
x
240
100
=
11.14
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
25
=
13.2x√t
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Zn Conditi Conditi oner 2 Agitator 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
252
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
7.5 / 0.8
=
=
√3 x V x η
= 0.95x√3 x 0.415
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 25 sq.mm1 Run Cable
=
0.65 96*1*0.65
= =
3.00 Check Check for vo ltage drop
174 of 284
62
A
HZL-BTN-ELE-DS-SY-037 3.01 Voltage drop IFL Vdrop
=
(R cos Φ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
252
1 Vdrop
=
%Vdrop
=
4.489
V
4.489
x
240
100
=
1.88
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
84
=
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0. (0.00153 x 0.8) + (0.0000805 x 0.6))
x
252
1 Vdrop
=
%Vdrop
=
26.932
V
26.932
x
240
100
=
11.23
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
25
=
13.2*√.2
=
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Zn Cleaner 4 Sample Transfer Pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
285
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
7.5 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 175 of 284
HZL-BTN-ELE-DS-SY-037 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Tota Totall fac facto torr to to be be app appli lied ed for for arri arrivi ving ng the the cap capac acit ity y
0.65
=
curren entt carr carryi ying ng capa capaci city ty of 25sq 25sq.m .mm m,1Ru ,1Run n cable able 2.03 curr
=
96x1x0.65 62
=
A
3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ)
=
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 5.076
((0. ((0.00 0015 153 3 x 0.8) 0.8) + (0. (0.00 0000 0080 805 5 x 0.6) 0.6)))
x
285
V
5.076
x
240
100
=
2.12
%
3.02 With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
84
A
( 6 Times the full load current)
Drop at the time of Starting
3.03
84
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
285
1 30.459
V
30.459 x
100
=
12.7
%
240
With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
3.04
=
s 13.2x√t
=
25 13.2*√.2
=
4.235
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x25 sq.mm, Al co nducto r, Armo ured, XLPE cable cable is selected Conveyor 09 - Pb filter con centrate conveyor
1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
L
=
383
m
Voltage rating
1.03 Length of the cable 176 of 284
HZL-BTN-ELE-DS-SY-037 1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
7.5 / 0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 35 sq.mm1 Run Cable
=
0.65 117*1*0.65
= =
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
x
383
1 Vdrop
=
%Vdrop
=
5.013 5.013 240
V x
100
=
2.09
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
84
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0. (0.00111 x 0.8) + (0.0000783 x 0.6))
1 Vdrop
=
%Vdrop
=
30.08 30.08 240
V x
100
=
12.54
177 of 284
%
x
383
HZL-BTN-ELE-DS-SY-037 3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
35
=
13.2x√t
=
13.2*√.2
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected Conveyor 11 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
425
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
7.5 / 0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 35 sq.mm 3.5C core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 35 sq.mm1 Run Cable
=
0.65 117*1*0.65
= =
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x
(R cosΦ + X sinΦ)
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
1 Vdrop
=
5.563
V 178 of 284
x
425
HZL-BTN-ELE-DS-SY-037
%Vdrop
5.563
=
x
240
100
=
2.32
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
84
=
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0. (0.00111 x 0.8) + (0.0000783 x 0.6))
x
425
1 Vdrop
=
%Vdrop
=
33.379
V
33.379
x
240
100
=
13.91
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
35
=
13.2x√t
=
13.2*√.2
5.93
KA/0.2Sec
(Fuse Op Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Armo ured, XLPE cable cable is s elected elected Tailings Tailings d isposal Tank Agitator 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
312
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
7.5 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 25 sq.mm,1 Run Cable
=
0.65 70*1*0.65
= =
179 of 284
46
A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
(R cos Φ + X sinΦ)
x
n
x
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0. ((0.00 0015 153 3 x 0.8) 0.8) + (0. (0.00 0000 0080 805 5 x 0.6) 0.6)))
x
312
1 Vdrop
=
%Vdrop
=
5.557
V
5.557
x
240
100
=
2.32
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
84
=
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
312
1 Vdrop
=
%Vdrop
=
33.344
V
33.344
x
240
100
=
13.9
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
25
=
13.2x√t
13.2*√.2
=
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Tailings Tailings d isposal gland seal pump 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
342
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder I FL
=
P
√3 x V x η
=
7.5 / 0.8
√3 x 0.415x 0.95
=
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. 180 of 284
HZL-BTN-ELE-DS-SY-037
2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 240 sq.mm,3Run Cable
=
0.65 117*1*0.65
=
76
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
(R cosΦ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0. ((0.00 0011 111 1 x 0.8) 0.8) + (0. (0.00 0000 0078 783 3 x 0.6) 0.6)))
x
342
1 Vdrop
=
%Vdrop
=
4.477
V
4.477
x
240
100
=
1.87
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
84
=
A
( 6 Times the full load current)
Drop at the time of Starting 84 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
x
342
1 Vdrop
=
%Vdrop
=
26.86
V
26.86
x
240
100
=
11.2
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
35 13.2*√1
=
2.65
KA/Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Armo ured, XLPE cable cable is selected Pb Cleaner III Concentrate Froth Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
Voltage rating 181 of 284
HZL-BTN-ELE-DS-SY-037 1.03 Length of the cable
L
=
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
312
m
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
5.5 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 25 sq.mm1 Run Cable
=
0.65 96*1*0.65
= =
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
(R cos Φ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
312
1 3.97 3.97 240
V x
100
=
1.66
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
60
A
( 6 Times the full load current)
Drop at the time of Starting 60
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
1 23.817 23.817 240
V x
100
=
9.93
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok 182 of 284
x
312
HZL-BTN-ELE-DS-SY-037 It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
25
=
13.2x√t
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Pb Cleaner II Concentrate Froth Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
324
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
5.5 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 25 sq.mm1 Run Cable
=
0.65 96*1*0.65
= =
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
(R cos Φ + X sinΦ)
x
n
x
L
Where,
Vdrop
=
Vdrop
=
%Vdrop
=
cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
1 4.122 4.122 240
V x
100
=
1.72
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok 183 of 284
x
324
HZL-BTN-ELE-DS-SY-037 Check Check fo r Starting Current DOL or Squirrelcage Motor
60
=
( 6 Times the full load current)
A
Drop at the time of Starting 60 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
324
1 Vdrop
=
%Vdrop
=
24.734
V
24.734
x
240
100
=
10.31
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s
25
=
13.2x√t
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Zn SCA V.TAILS.SAMPLE PERISTATIC HOUSE HOUSE PUMP(VFD) PUMP(VFD) 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
285
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.02
=
5.5 / 0.8
√3 x V x η
=
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Tota Totall fac facto torr to to be be app appli lied ed for for arri arrivi ving ng the the cap capac acit ity y curren entt carr carryi ying ng capa capaci city ty of 16sq 16sq.m .mm m,1Ru ,1Run n cable able 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x (R cosΦ + X sinΦ)
x
n 184 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
285
1 Vdrop
=
%Vdrop
=
5.701
V
5.701
x
240
100
=
2.38
%
3.02 With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current For VFD
=
30
( 3 Times the full load current)
A
Drop at the time of Starting 30 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
285
1 Vdrop
=
%Vdrop
=
17.104
V
17.104
x
240
100
=
7.13
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x16 sq.mm, Al co nducto r, Arm oured, XLPE cable is selected Zn SCAV.CONC.SAMPLE SCAV.CONC.SAMPLE PERISTATIC PERISTATIC HOUSE PUMP(VFD)
1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
285
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
5.5 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 185 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Tota Totall fac facto torr to to be be app appli lied ed for for arri arrivi ving ng the the cap capac acit ity y
0.65
=
curren entt carr carryi ying ng capa capaci city ty of 16sq 16sq.m .mm m,1Ru ,1Run n cable able 2.03 curr
=
70x1x0.65 46
=
A
3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ)
=
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
285
1 Vdrop
=
%Vdrop
=
5.701
V
5.701
x
240
100
=
2.38
%
3.02 With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current For VFD
=
30
A
( 3 Times the full load current)
Drop at the time of Starting 30 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
285
1 Vdrop
=
%Vdrop
=
17.104 17.104 240
V x
100
=
7.13
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x16 sq.mm, Al co nducto r, Arm oured, XLPE cable is selected Duplex Particle Size Monitor For Sec. Cyclone & Reg. Cyclone O/f
1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
240
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop at normal running cond. 186 of 284
=
Ω / km 0.0808 Ω / km 2.44 2.5
%
HZL-BTN-ELE-DS-SY-037 1.07 Allowable Voltage Drop at Starting Condition
=
15
1.08 Current derating factors
=
0.65
10
A
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
5.5 / 0.8
=
=
=
√3 x V
√3 x 0.415
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
240
1 Vdrop
=
%Vdrop
=
4.801 4.801 240
V x
100
=
2.01
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
60
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
240
1 Vdrop
=
%Vdrop
=
28.807 28.807 240
V x
100
=
12.01
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage
187 of 284
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Particle Size Monitor For Pr. Class. Cyclone O/f Stream 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
240
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
5.5 / 0.8
=
=
=
√3 x V
√3 x 0.415
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 = =
70x1x0.65 46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
1 Vdrop
=
%Vdrop
=
4.801 4.801 240
V x
100
=
2.01
188 of 284
%
x
240
HZL-BTN-ELE-DS-SY-037 3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
60
=
( 6 Times the full load current)
A
Drop at the time of Starting 60 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
240
1 Vdrop
=
%Vdrop
=
28.807
V
28.807
x
240
100
=
12.01
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
16
=
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Pb Concentrate Thickener Thickener Overflow Pump s 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
245
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
5.5 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Tota Totall fac facto torr to to be be app appli lied ed for for arri arrivi ving ng the the cap capac acit ity y curren entt carr carryi ying ng capa capaci city ty of 16sq 16sq.m .mm m,1Ru ,1Run n cable able 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop 189 of 284
46
A
HZL-BTN-ELE-DS-SY-037 IFL
Vdrop
=
x (R cosΦ + X sinΦ)
n
x
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
245
1 Vdrop
=
%Vdrop
=
4.901
V
4.901
x
240
100
=
2.05
%
3.02 With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrelcage Motor
60
=
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
245
1 Vdrop
=
%Vdrop
=
29.407
V
29.407
x
240
100
=
12.26
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, 3.5 3.5C C x16 sq.mm, Al co nducto r, Armo ured, XLPE cable cable is selected Pb Concentrate Thickener un derflow pumps No.14 No.14 (VFD (VFD))
1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
286
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
5.5 / 0.8 =
√3 x V
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking.
190 of 284
HZL-BTN-ELE-DS-SY-037 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 117*1*0.65
=
76
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
286
1 Vdrop
=
%Vdrop
=
5.721
V
5.721
x
240
100
=
2.39
%
3.02 With in the Permissible limit of 5% voltage drop hence ok Check Check fo r Starting Current For VFD
30
=
A
( 3 Times the full load current)
Drop at the time of Starting 30
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
286
1 17.164
V
17.164
x
240
100
=
7.16
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Lime Storage Tank Tank Ag itator 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
L
=
320
m
Voltage rating
1.03 Length of the cable 191 of 284
HZL-BTN-ELE-DS-SY-037 1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
5.5 / 0.8
=
=
=
√3 x V
√3 x 0.415x 0.95
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
=
0.65 96*1*0.65
= =
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
320
1 Vdrop
=
%Vdrop
=
4.071 4.071 240
V x
100
=
1.7
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
60
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0. (0.00153 x 0.8) + (0.0000805 x 0.6))
1 Vdrop
=
%Vdrop
=
24.428 24.428 240
V x
100
=
10.18
192 of 284
%
x
320
HZL-BTN-ELE-DS-SY-037 3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
25
=
13.2x√t
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected Lime water circulation pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
320
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
5.5 / 0.8
=
=
=
√3 x V
√3 x 0.415x 0.95
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 25 sq.mm,1 Run Cable
=
0.65 96*1*0.65
= =
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
=
x
(R cos Φ + X sinΦ)
x
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
1 Vdrop
=
4.071
V 193 of 284
x
320
HZL-BTN-ELE-DS-SY-037 %Vdrop
4.071
=
x
240
100
=
1.7
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
60
=
( 6 Times the full load current)
A
Drop at the time of Starting 60 Vdrop
=
x
((0.00153 x 0.8) + (0.0000805 x 0.6))
x
320
1 Vdrop
=
%Vdrop
=
24.428
V
24.428
x
240
100
=
10.18
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
25
=
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al con ducto r, Armour ed, XLPE XLPE cable is selected selected NaCN Disinfection Clean Water Pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
273
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
5.5 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Tota Totall fac facto torr to to be be app appli lied ed for for arri arrivi ving ng the the cap capac acit ity y curren entt carr carryi ying ng capa capaci city ty of 16sq 16sq.m .mm m,1Ru ,1Run n cable able 2.03 curr
= =
0.65 70x1x0.65 =
194 of 284
46
A
HZL-BTN-ELE-DS-SY-037 3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ)
=
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
273
1 Vdrop
=
%Vdrop
=
5.461
V
5.461
x
240
100
=
2.28
%
3.02 With in t he Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current DOL or Squirrelcage Motor
=
60
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
273
1 Vdrop %Vdrop
=
32.768 32.768
=
V x
240
100
=
13.66
%
3.03 With in the permissi ble limit o f 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upto 80% 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 3.5 3.5C C x sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected
TAILING THICKENER OVERFLOW OVERFLOW PUMPS 1.00 INPUT DATA 1.01 Feeder Load
P
=
110
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
360
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop at normal running cond.
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
110 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95 195 of 284
201
A
HZL-BTN-ELE-DS-SY-037 Size of 300 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to be appl applie ied d for for arri arrivi ving ng the the cap capac acit ity y 2.03 Current carrying capacity of 300 sq.mm,2 Run Cable
=
0.65 455*2*0.65
= =
592 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
(R cosΦ + X sinΦ)
x
x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
201 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
360
2 Vdrop
=
%Vdrop
=
5.264
V
5.264
x
240
100
=
2.2
%
3.02 With in th e Permissi Permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check fo r Starting Current = 1206 A
DOL or Squirrelcage Motor
( 6 Times the full load current)
Drop at the time of Starting 1206 Vdrop
=
x
((0.000129 x 0.8) + (0.0000705 x 0.6))
x
360
2 Vdrop
=
%Vdrop
=
31.585
V
31.585
x
240
100
=
13.17
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
300 13.2*√1
=
22.7
KA/Sec
(ACB Operated)
3.04 2 run of 1.1kV grade, 3.5C 3.5C x300sq.mm, Al condu cto r, Armou red, XLPE cable is selected
196 of 284
HZL-BTN-ELE-DS-SY-037 LT CABLE SIZING CALCULATION CuSo4 Storage Tank Agitator 14 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
263
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
5.5 / 0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
√3 x IFL =
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
1 Vdrop
=
%Vdrop
=
5.261 5.261 240
V x
100
=
2.2
%
3.02 With in the permissi ble limits o f 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
=
60
A
( 6 Times the full load current)
197 of 284
263
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 60 Vdrop
=
x
((0. (0.00244 x 0.8) + (0.0000808 x 0.6))
x
263
1 Vdrop
=
%Vdrop
=
31.568
V
31.568
x
240
100
=
13.16
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upto 80% 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected SIX Storage Tank Agitator 42
1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
270
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
5.5 / 0.98
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
=
IFL
x (R cosΦ + X sinΦ) x
n 198 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where,
Vdrop
=
Vdrop
=
%Vdrop
=
cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
270
1 5.401
V
5.401
x
240
100
=
2.26
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
60
=
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
270
1 Vdrop
=
%Vdrop
=
32.408
V
32.408
x
240
100
=
13.51
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Nigrosine Mixing Tank Agitator
1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
220
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.02
=
√3 x V x η
5.5 / 0.8 =
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 199 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
=
0.65 70x1x0.65 46
=
A
3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
220
1 Vdrop
=
%Vdrop
=
4.401
V
4.401
x
240
100
=
1.84
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
60
=
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
220
1 Vdrop
=
%Vdrop
=
26.406
V
26.406
x
240
100
=
11.01
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Nigrosine Storage Tank Tank Ag itator
1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
275
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
200 of 284
Ω / km 0.0808 Ω / km 2.44
HZL-BTN-ELE-DS-SY-037 1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
5.5 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
=
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
275
1 Vdrop
=
%Vdrop
=
5.501 5.501 240
V x
100
=
2.3
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
=
60
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
275
1 Vdrop
=
%Vdrop
=
33.008 33.008 240
V x
100
=
13.76
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage 201 of 284
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Diluted Nigrosine Dosing Tank Agitator
1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
195
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
5.5 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1 Vdrop
=
%Vdrop
=
3.901 3.901 240
V x
100
=
1.63
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 202 of 284
x
195
HZL-BTN-ELE-DS-SY-037
Check for Starting Current DOL or Squirrel Cage
60
=
( 6 Times the full load current)
A
Drop at the time of Starting 60 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
195
1 Vdrop
=
%Vdrop
=
23.406
V
23.406
x
240
100
=
9.76
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Spare Storage Tank Tank Agitator
1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
275
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
5.5 / 0.98 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
203 of 284
46
A
HZL-BTN-ELE-DS-SY-037 3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
275
1 Vdrop
=
%Vdrop
=
5.501
V
5.501
x
240
100
=
2.3
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
60
=
( 6 Times the full load current)
A
Drop at the time of Starting 60 Vdrop
=
x
((0. (0.00244 x 0.8) + (0.0000808 x 0.6))
x
275
1 Vdrop
=
%Vdrop
=
33.008
V
33.008
x
240
100
=
13.76
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s
=
13.2x√t
16
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Mill Area spillage pump
1.00 INPUT DATA 1.01 Feeder Load
P
=
9.3
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
345
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
17
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
9.3 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415 204 of 284
HZL-BTN-ELE-DS-SY-037 Size of 35 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient 2.02 Cable size Current Rating at 35°C Temperature 35°C 35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 117x1x0.65
2.03 Current carrying capacity of 35 sq.mm1 Run Cable
76
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cos Φ + X sinΦ) x
=
L
n Where, cosΦ sinΦ
= =
0.8 0.6
(Assumed)
17 Vdrop
=
x (0.001 (0.00111 11 x 1.11) 1.11) + (0.00 (0.00007 00783 83 x 0.6) 0.6) x
345
1 Vdrop
=
%Vdrop
=
5.484
V
5.484
x
240
100
=
2.29
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
102
=
( 6 Times the full load current)
A
Drop at the time of Starting 102 Vdrop
=
x ((0. ((0.00 0011 111 1 x 0.8 0.8)) + (0. (0.00 0000 0078 783 3 x 0.6 0.6)) )) x
345
1 Vdrop
=
%Vdrop
=
32.902
V
32.902
x
240
100
=
13.71
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that mot or has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
35 13.2*√.2
=
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Zn Regrind Regrind Mill Area Spillage Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
9.3
kW
1.02
VT
=
0.415
kV
L
=
295
m
Voltage rating
1.03 Length of the cable 205 of 284
HZL-BTN-ELE-DS-SY-037 1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
17
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
9.3 / 0.8
√3 x V x η
=
=
0.95x√3 x 0.415
Size of 35 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
Current carrying carrying capacity capacity of 35 sq.mm1 Run Cable 2.03 Current
0.65
= 117*1*0.65 117*1*0.65 =
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
17 Vdrop
=
x
((0. ((0.00 0011 111 1 x 0.8) 0.8) + (0. (0.00 0000 0078 783 3 x 0.6) 0.6)))
x
295
1 Vdrop
=
%Vdrop
=
4.689 4.689 240
V x
100
=
1.96
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
102
=
A
( 6 Times the full load current)
Drop at the time of Starting 102 Vdrop
=
x ((0.00111 x 0.8) + (0. (0.0000783 x 0.6)) x 1
Vdrop
=
%Vdrop
=
28.134 28.134 240
V x
100
=
11.73
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok 206 of 284
295
HZL-BTN-ELE-DS-SY-037 It is to be noted that mot or has been selected selected to start up to 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
35
=
13.2x√t
=
13.2*√.2
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Mill Ar ea Spillage Spillage Pump 1.00 INPUT DATA 1.01 Feeder Load
P
=
9.3
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
240
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
17
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
9.3 / 0.8
√3 x V x η
=
=
0.95x√3 x 0.415
Size of 35 Sq.mm 3.5core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty Current carrying carrying capacity capacity of 35 sq.mm1 Run Cable 2.03 Current
=
0.65
= 117*1*0.65 117*1*0.65 =
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
17 Vdrop
=
x
((0. ((0.00 0011 111 1 x 0.8) 0.8) + (0. (0.00 0000 0078 783 3 x 0.6) 0.6)))
1 Vdrop
=
%Vdrop
=
3.815 3.815 240
V x
100
=
1.59
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 207 of 284
x
240
HZL-BTN-ELE-DS-SY-037 Check Check for Starting Current DOL or Squirrel Cage
102
=
( 6 Times the full load current)
A
Drop at the time of Starting 102 Vdrop
=
x ((0.00111 x 0.8) + (0.0000783 x 0.6)) x
240
1 Vdrop
=
%Vdrop
=
22.888
V
22.888
x
240
100
=
9.54
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Iw
=
s
35
=
13.2x√t
=
13.2*√.2
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Cooling Tower 1.00 INPUT DATA 1.01 Feeder Load
P
=
9.3
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
50
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
17
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
9.3 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
=
IFL
x (R cosΦ + X sinΦ) x
n 208 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
17 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
50
1 Vdrop
=
%Vdrop
=
1.7
V
1.7
x
240
100
=
0.71
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
102
=
A
( 6 Times the full load current)
Drop at the time of Starting 102 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
50
1 Vdrop
=
%Vdrop
=
10.202
V
10.202
x
240
100
=
4.26
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s
=
13.2x√t
16
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected VFD - ACS 1000
1.00 INPUT DATA 1.01 Feeder Load
P
=
17.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
40
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
32
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
√3 x V x η
17.5 / 0.8 =
0.95x√3 x 0.415
=
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 209 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
Current carrying carrying capacity capacity of 16 sq.mm1 Run Cable 2.03 Current
0.65
= 70*1*0.65 70*1*0.65 46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
32 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
40
1 Vdrop
=
%Vdrop
=
2.561
V
2.561
x
240
100
=
1.07
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
192
=
( 6 Times the full load current)
A
Drop at the time of Starting 192 Vdrop
=
x ((0.00244 x 0.8) + (0. (0.0000808 x 0.6)) x
40
1 Vdrop
=
%Vdrop
=
15.364
V
15.364
x
240
100
=
6.41
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Conveyor 08 - pebble recycle conveyor 1.00 INPUT DATA 1.01 Feeder Load
P
=
11
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
300
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop
= 210 of 284
Ω / km 0.0783 Ω / km 1.11 2.5
%
HZL-BTN-ELE-DS-SY-037 1.07 Allowable Voltage Drop at Starting Condition
=
15
1.08 Current derating factors
=
0.65
20
A
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
11 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 35 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 117x1x0.65
2.03 Current carrying capacity of 35 sq.mm Run Cable
=
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
20 Vdrop
=
x
((0.0 ((0.001 0111 11 x 0.8 0.8)) + (0.0 (0.000 0007 0783 83 x 0.6 0.6)) ))
x
300
1 Vdrop
=
%Vdrop
=
5.61 5.61 240
V x
100
=
2.34
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
120
=
A
( 6 Times the full load current)
Drop at the time of Starting 120 Vdrop
=
x ((0.00111 x 0.8) + (0.0000783 x 0.6)) x
300
1 Vdrop
=
%Vdrop
=
33.659 33.659 240
V x
100
=
14.03
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage 211 of 284
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw
s
=
35
=
13.2x√t
=
13.2*√.2
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb.CL.3Conc.Return SampleDelivery Pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
11
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
285
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
20
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
11 / 0.8
=
=
=
√3 x V x η 2.02
√3 x 0.415x 0.95
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 35 sq.mm1 Run Cable
=
0.65 117*1*0.65
= =
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
20 Vdrop
=
x
((0. ((0.00 0011 111 1 x 0.8) 0.8) + (0. (0.00 0000 0078 783 3 x 0.6) 0.6)))
1 Vdrop
=
%Vdrop
=
5.329 5.329 240
V x
100
=
2.23
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 212 of 284
x
285
HZL-BTN-ELE-DS-SY-037 Check Check for Starting Current DOL or Squirrel Cage
120
=
( 6 Times the full load current)
A
Drop at the time of Starting 120 Vdrop
=
x
((0.00111 x 0.6) + (0.0000783 x ))
x
285
1 Vdrop
=
%Vdrop
=
22.777
V
22.777
x
240
10 1 00
=
9.5
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage
Short Time rating of the Cable Cable Iw
s
=
35
=
13.2x√t
=
13.2*√.2
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Pb Concentrate thickener area spillage pum p No.24 1.00 INPUT DATA 1.01 Feeder Load
P
=
11
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
310
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
20
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
11 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 35 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of sq.mm35 Run Cable
=
0.65 117*1*0.65
= =
213 of 284
76
A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
20 Vdrop
=
x
((0. ((0.00 0011 111 1 x 0.8) 0.8) + (0. (0.00 0000 0078 783 3 x 0.6) 0.6)))
x
310
1 Vdrop
=
%Vdrop
=
5.797
V
5.797
x
240
100
=
2.42
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
120
=
( 6 Times the full load current)
A
Drop at the time of Starting 120 Vdrop
=
x ((0. ((0.00 0011 111 1 x 0.8 0.8)) + (0. (0.00 0000 0078 783 3 x 0.6 0.6)) )) x
310
1 Vdrop
=
%Vdrop
=
34.781
V
34.781
x
240
100
=
14.5
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
35
=
13.2x√t
13.2*√.2
=
5.93
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Zn Concentrate thickener area spillage pump 1 1.00 INPUT DATA 1.01 Feeder Load
P
=
11
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
328
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
20
A
Voltage rating
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
11 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95 214 of 284
Ω / km Ω / km
HZL-BTN-ELE-DS-SY-037
2.02
Size of 50 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 50 sq.mm1 Run Cable
0.65 142*1*0.65
=
92
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
20 Vdrop
=
x
((0. ((0.00 0008 0818 18 x 0.8 0.8)) + (0.0 (0.000 0007 075 5 x 0.6) 0.6)))
x
328
1 Vdrop
=
%Vdrop
=
4.588
V
4.588
x
240
100
=
1.92
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
120
=
( 6 Times the full load current)
A
Drop at the time of Starting 120 Vdrop
=
x
((0.000818 x 0.6) + (0.000075 x ))
x
328
1 Vdrop
=
%Vdrop
=
19.318
V
19.318
x
240
100
=
8.05
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
50 13.2*√.2
=
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Zn Concentrate thickener area spillage pump 2 1.00 INPUT DATA 1.01 Feeder Load
P
=
11
kW
1.02
VT
=
0.415
kV
Voltage rating 215 of 284
HZL-BTN-ELE-DS-SY-037 1.03 Length of the cable
L
=
325
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
20
A
m
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
11 / 0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 50 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 50 sq.mm1 Run Cable
=
0.65 142*1*0.65
= =
92
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
20 Vdrop
=
x
((0. ((0.00 0008 0818 18 x 0.8 0.8)) + (0.0 (0.000 0007 075 5 x 0.6) 0.6)))
x
325
1 Vdrop
=
%Vdrop
=
4.546 4.546 240
V x
100
=
1.9
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
=
120
A
( 6 Times the full load current)
Drop at the time of Starting 120 Vdrop
=
x
((0. (0.000818 x 0.6) + (0.000075 x ))
1 Vdrop
=
19.141
V 216 of 284
x
325
HZL-BTN-ELE-DS-SY-037
%Vdrop
19.141
=
x
240
100
=
7.98
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
50
=
13.2x√t
=
13.2*√.2
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Conveyor 10 - Zn filter con centrate conveyor 1.00 INPUT DATA 1.01 Feeder Load
P
=
11
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
370
m
1.04 AC resistance of the cable at 90°C
R
=
0.818
1.05 Reactance of the cable at 50Hz
X
=
0.075
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
20
A
Voltage rating
Ω / km Ω / km
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
2.02
=
11 / 0.8 =
√3 x V x η
√3 x 0.415x 0.95
=
Size of 50 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 50
1.0
142 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 50 sq.mm1 Run Cable
=
0.65 142*1*0.65
= =
92
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
√3 x 20 Vdrop
=
x
((0.000818 x 0.8) + (0.000075 x 0.6))
1 Vdrop
=
5.176
V 217 of 284
x
370
HZL-BTN-ELE-DS-SY-037
%Vdrop
5.176
=
x
240
100
=
2.16
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
120
=
( 6 Times the full load current)
A
Drop at the time of Starting 120 Vdrop
=
x
((0.000818 x 0.6) + (0.000075 x ))
x
370
1
Vdrop
=
%Vdrop
=
21.792
V
21.792
x
240
100
=
9.08
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
50
=
13.2x√t
=
13.2*√.2
8.47
KA/0.2Sec
(Fuse Operated)
3.04 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x50sq.mm, x50sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Mill A rea EOT 1.00 INPUT DATA 1.01 Feeder Load
P
=
34.8
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
252
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0712 Ω / km 0.323
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
64
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
34.8 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 120 Sq.mm 3.5core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
120
1.0
257 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
218 of 284
HZL-BTN-ELE-DS-SY-037 Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 257x1x0.65
2.03 Current carrying capacity of 120 sq.mm1 Run Cable
167 A
= 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
64 Vdrop
=
x
((0. ((0.00 0003 0323 23 x 0.8 0.8)) + (0.0 (0.000 0007 0712 12 x 0.6 0.6)) ))
x
252
1 Vdrop
=
%Vdrop
=
4.856
V
4.856
x
240
100
=
2.03
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
384
=
( 6 Times the full load current)
A
Drop at the time of Starting 384 Vdrop
=
x (0.000323 x 0.8) + (0.0000712 x 0.6) x
252
1 Vdrop
=
%Vdrop
=
29.139
V
29.139
x
240
100
=
12.15
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage
Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
120 13.2*√.2
=
20.3
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV grade, 3.5C 3.5C x120sq.mm, Al condu cto r, Armo ured, XLPE cable is selected Zn Concentrate Thickener - Hydraulic Power Lo cal panel 1.00 INPUT DATA 1.01 Feeder Load
P
=
15.87
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
336
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factors
=
0.65
219 of 284
%
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
15.87 / 0.8
=
=
=
√3 x V x η 2.02
29
A
√3 x 0.415x 0.95
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 35 sq.mm1 Run Cable
0.65 117*1*0.65
=
76
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
29 Vdrop
=
x
((0. ((0.00 0011 111 1 x 0.8) 0.8) + (0. (0.00 0000 0078 783 3 x 0.6) 0.6)))
x
336
1 Vdrop
=
%Vdrop
=
9.11
V
9.11
x
240
100
=
3.8
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Short Time rating of the Cable Cable Iw
=
s
=
13.2x√t
35 13.2*√.2
=
5.93
KA/0.2Sec
(Fuse Operated)
3.03 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected Zn Concentrate Thickener - Hydraulic Power 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
220 of 284
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
5.5 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
10
A
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
0.4
V
0.4
x
240
100
=
0.17
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
60
=
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x ((0.00244 ((0.00244 x 0.8) + (0.000080 (0.0000808 8 x 0.6)) x
20
1 Vdrop
=
%Vdrop
=
2.401
V
2.401
x
240
100
=
1.01
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected 221 of 284
HZL-BTN-ELE-DS-SY-037 Screw Feeder Feeder 1.00 INPUT DATA 1.01 Feeder Load
P
=
0.37
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
1
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
2.02
=
0.37 / 0.8
√3 x V x η
=
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
1 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
0.04 0.04 240
V x
100
=
0.02
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
=
6
A
( 6 Times the full load current)
Drop at the time of Starting 6 Vdrop
=
x ((0.00244 ((0.00244 x 0.8) + (0.000080 (0.0000808 8 x 0.6)) x 1 222 of 284
20
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
0.24
V
0.24
x
240
100
=
0.1
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Ag it ato r i n m ix in g t ank 1.00 INPUT DATA 1.01 Feeder Load
P
=
1.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
3
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
1.5 /0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
= n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
223 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 3 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
0.12
V
0.12
x
240
100
=
0.05
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
18
=
( 6 Times the full load current)
A
Drop at the time of Starting 18 Vdrop
=
x ((0.00244 ((0.00244 x 0.8) + (0.000080 (0.0000808 8 x 0.6)) x
20
1
Vdrop
=
%Vdrop
=
0.72
V
0.72
x
240
100
=
0.3
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Transfer Pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
5.5 /0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 224 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 70*1*0.65
=
46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
0.4
V
0.4
x
240
100
=
0.17
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
60
=
( 6 Times the full load current)
A
Drop at the time of Starting 60 Vdrop
=
x ((0.00244 ((0.00244 x 0.8) + (0.000080 (0.0000808 8 x 0.6)) x
20
1 Vdrop
=
%Vdrop
=
2.401
V
2.401
x
240
100
=
1.01
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Flocculant Flocculant dosing pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
1.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop
= 225 of 284
Ω / km 0.0808 Ω / km 2.44 2.5
%
HZL-BTN-ELE-DS-SY-037 1.07 Allowable Voltage Drop at Starting Condition
=
15
1.08 Current derating factors
=
0.65
3
A
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
1.5 /0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
3 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
20
1 Vdrop
=
%Vdrop
=
0.12 0.12 240
V x
100
=
0.05
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
18
=
A
( 6 Times the full load current)
Drop at the time of Starting 18 Vdrop
=
x ((0.00244 ((0.00244 x 0.8) + (0.000080 (0.0000808 8 x 0.6)) x
20
1 Vdrop
=
%Vdrop
=
0.72 0.72 240
V x
100
=
0.3
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage 226 of 284
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected MCC TO TAIL ING THICKENER 1.00 INPUT DATA 1.01 Feeder Load
P
=
16.37
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
330
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0783 Ω / km 1.11
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factors
=
0.65
28
A
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
16.37 / 0.8
=
=
=
√3 x V
√3 x 0.415
Size of 35 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
35
1.0
117 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 35 sq.mm1 Run Cable
=
0.65 117*1*0.65
= =
76
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
28 Vdrop
=
x
((0.00111 x 0.8) + (0.0000783 x 0.6))
1 Vdrop
=
%Vdrop
=
8.639 8.639 240
V x
100
=
3.6
%
3.02 With in the permissi ble limit of 5% voltage drop hence ok 227 of 284
x
330
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw
s
=
35
=
13.2x√t
=
13.2*√.2
5.93
KA/0.2Sec
(Fuse Operated)
3.03 1 run o f 1.1kV 1.1kV grade, 3.5 3.5C C x35sq.mm, x35sq.mm, Al c onduct or, Arm oured, XLPE cable cable is s elected elected LOCAL PANEL TO TAILING THICKENER 1.00 INPUT DATA 1.01 Feeder Load
P
=
7.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
14
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
7.5 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 sq.mm3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of16sq.mm, 1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
14 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1 Vdrop
=
%Vdrop
=
0.56 0.56 240
V x
100
=
0.24
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 228 of 284
x
20
HZL-BTN-ELE-DS-SY-037
Check Check for Starting Current DOL or Squirrel Cage
84
=
( 6 Times the full load current)
A
Drop at the time of Starting 84 Vdrop
=
x ((0. ((0.00 0024 244 4 x 0.8 0.8)) + (0. (0.00 0000 0080 808 8 x 0.6 0.6)) )) x
20
1 Vdrop
=
%Vdrop
=
3.361
V
3.361
x
240
100
=
1.41
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Screw Feeder Feeder 1.00 INPUT DATA 1.01 Feeder Load
P
=
0.37
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
1
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
0.37 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
=
0.65 70*1*0.65
= =
229 of 284
46
A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
1 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
0.04
V
0.04
x
240
100
=
0.02
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
6
=
( 6 Times the full load current)
A
Drop at the time of Starting 6 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
20
1 Vdrop
=
%Vdrop
=
0.24
V
0.24
x
240
100
=
0.1
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Ag it ato r i n m ix in g t ank 1.00 INPUT DATA 1.01 Feeder Load
P
=
1.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
1.5 / 0.8 =
√3 x V x η
=
√3 x 0.415x 0.95 230 of 284
HZL-BTN-ELE-DS-SY-037
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
2 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
0.08
V
0.08
x
240
100
=
0.04
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
12
=
A
( 6 Times the full load current)
Drop at the time of Starting 12 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
20
1 Vdrop
=
%Vdrop
=
0.48
V
0.48
x
240
10 1 00
=
0.2
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected
231 of 284
HZL-BTN-ELE-DS-SY-037 Transfer Pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
5.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
10
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
5.5 / 0.8
√3 x V x η
=
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 25 sq.mm,1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
10 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
0.4 0.4 240
V x
100
=
0.17
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
=
60
A
( 6 Times the full load current)
Drop at the time of Starting 60 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x 1 232 of 284
20
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
2.401
V
2.401
x
240
100
=
1.01
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Flocculant Flocculant dosing pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
1.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
3
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
1.5 / 0.8
=
=
=
√3 x 0.415x 0.95
√3 x V x η
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm,1 Run Cable
=
0.65 70*1*0.65
= =
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
233 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 3 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
20
1 Vdrop
=
%Vdrop
=
0.12
V
0.12
x
240
100
=
0.05
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
18
=
( 6 Times the full load current)
A
Drop at the time of Starting 18 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
20
1 Vdrop
=
%Vdrop
=
0.72
V
0.72
x
240
10 1 00
=
0.3
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Belt Magnet (Self Cleaning) Conveyor 06 - Belt Drive 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
325
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
√3 x V x η
3.7 / 0.8 =
0.95x√3 x 0.415
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
234 of 284
HZL-BTN-ELE-DS-SY-037 Factor for Non linear loads
0.8
=
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65 46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
325
1 Vdrop
=
%Vdrop
=
4.551
V
4.551
x
240
100
=
1.9
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
42
=
( 6 Times the full load current)
A
Drop at the time of Starting 42 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
325
1
Vdrop
=
%Vdrop
=
27.307
V
27.307
x
240
100
=
11.38
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Water Pump in B03 - FMC - 110 110 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.72
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
232
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
235 of 284
HZL-BTN-ELE-DS-SY-037 1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
3.72 / 0.8
=
=
=
√3 x V x η
0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
232
1 Vdrop
=
%Vdrop
=
3.249 3.249 240
V x
100
=
1.36
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
232
1 Vdrop
=
%Vdrop
=
19.493 19.493 240
V x
100
=
8.13
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage 236 of 284
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Self Self cl eaning eaning belt magnet - Conveyor 08 (Belt drive) 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
20
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
3.7 / 0.8
√3 x V x η
=
=
0.95x√3 x 0.415
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. Rating factor for Ambient 2.02 Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
0.65
= 70x1x0.65
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
1 Vdrop
=
%Vdrop
=
0.28 0.28 240
V x
100
=
0.12
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 237 of 284
x
20
HZL-BTN-ELE-DS-SY-037
Check Check for Starting Current DOL or Squirrel Cage
42
=
( 6 Times the full load current)
A
Drop at the time of Starting 42 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
20
1 Vdrop
=
%Vdrop
=
1.68
V
1.68
x
240
100
=
0.7
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Servo Servo Motor/Circulating Motor 1.00 INPUT DATA 1.01 Feeder Load
P
=
0.5
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
275
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
1
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
0.5 / 0.8 =
√3 x V x η
= 0.95x√3 x 0.415
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 = =
238 of 284
70x1x0.65 46
A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
1 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
275
1 Vdrop
=
%Vdrop
=
0.55
V
0.55
x
240
100
=
0.23
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
6
=
( 6 Times the full load current)
A
Drop at the time of Starting 6 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
275
1 Vdrop
=
%Vdrop
=
3.301
V
3.301
x
240
100
=
1.38
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
13.2x√t
16
=
13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Pb.Multis Pb.Multis tream Analysis 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
245
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
6
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
3.7 / 0.8 =
√3 x V
=
√3 x 0.415 239 of 284
HZL-BTN-ELE-DS-SY-037
2.02
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
0.65
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
70x1x0.65 46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
6 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
245
1 Vdrop
=
%Vdrop
=
2.941
V
2.941
x
240
100
=
1.23
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
36
=
( 6 Times the full load current)
A
Drop at the time of Starting 36 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
245
1 Vdrop
=
%Vdrop
=
17.644
V
17.644
x
240
100
=
7.36
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Zn.Multist Zn.Multist ream Analysis 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
Voltage rating 240 of 284
HZL-BTN-ELE-DS-SY-037 1.03 Length of the cable
L
=
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
245
m
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
1.07 Current derating factors
=
0.65
6
A
%
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
=
3.7 / 0.8 =
√3 x V
=
√3 x 0.415
Size of 16 Sq.mm 4core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 =
70x1x0.65 46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
6 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
245
1 Vdrop
=
%Vdrop
=
2.941
V
2.941
x
240
100
=
1.23
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Short Time rating of the Cable Cable Iw
=
s
=
13.2x√t
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Pb Concentrate Thickener - Hydraulic Power Pack 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
L
=
213
m
Voltage rating
1.03 Length of the cable 241 of 284
HZL-BTN-ELE-DS-SY-037 1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder
P I FL
3.7 / 0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
213
1 Vdrop
=
%Vdrop
=
2.983 2.983 240
V x
100
=
1.25
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x 1
Vdrop
=
%Vdrop
=
17.896 17.896 240
V x
100
=
7.46
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok 242 of 284
213
HZL-BTN-ELE-DS-SY-037 It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Pb Filter cloth wash water pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
4
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
370
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
4 / 0.8
√3 x V x η
=
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
= =
0.65 70*1*0.65 =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
1 Vdrop
=
%Vdrop
=
5.181 5.181 240
V x
100
=
2.16
243 of 284
%
x
370
HZL-BTN-ELE-DS-SY-037 3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
42
=
( 6 Times the full load current)
A
Drop at the time of Starting 42 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
370
1 Vdrop
=
%Vdrop
=
31.087
V
31.087
x
240
100
=
12.96
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Gland Seale Water Pumps For Pb & Zn Filter Pumps 1.00 INPUT DATA 1.01 Feeder Load
P
=
4
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
240
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
4 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
244 of 284
46
A
HZL-BTN-ELE-DS-SY-037 3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
240
1 Vdrop
=
%Vdrop
=
3.361
V
3.361
x
240
100
=
1.41
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
42
=
( 6 Times the full load current)
A
Drop at the time of Starting 42 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
240
1 Vdrop
=
%Vdrop
=
20.165
V
20.165
x
240
100
=
8.41
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
13.2x√t
16
=
13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Oil Cooler (Air) 1.00 INPUT DATA 1.01 Feeder Load
P
=
0.75
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
330
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
1
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
0.75 / 0.8 =
√3 x V
=
√3 x 0.415 245 of 284
HZL-BTN-ELE-DS-SY-037
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
1 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
330
1 Vdrop
=
%Vdrop
=
0.66
V
0.66
x
240
100
=
0.28
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
6
=
A
( 6 Times the full load current)
Drop at the time of Starting 6 Vdrop
=
x ((0. ((0.00 0024 244 4 x 0.8 0.8)) + (0. (0.00 0000 0080 808 8 x 0.6 0.6)) )) x
330
1 Vdrop
=
%Vdrop
=
3.961
V
3.961
x
240
100
=
1.66
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected
246 of 284
HZL-BTN-ELE-DS-SY-037 Conveyor 11 tripper car 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
430
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0805 Ω / km 1.53
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
3.7 / 0.8
=
=
=
√3 x V x η
√3 x 0.415x 0.95
Size of 25 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
25
1.0
96 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 25 sq.mm1 Run Cable
=
0.65 96*1*0.65
= =
62
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0. ((0.00 0015 153 3 x 0.8) 0.8) + (0. (0.00 0000 0080 805 5 x 0.6) 0.6)))
x
430
1 Vdrop
=
%Vdrop
=
3.83 3.83 240
V x
100
=
1.6
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
=
42 247 of 284
A
( 6 Times the full load current)
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 42 Vdrop
=
x ((0.00153 x 0.8) + (0.0000805 x 0.6)) x
430
1 Vdrop
=
%Vdrop
=
22.978
V
22.978
x
240
100
=
9.58
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
25
=
13.2x√t
=
13.2*√.2
4.23
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x25sq.mm, x25sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Lime Mixing tank Agitator 1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
320
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
3.7 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16sq.mm,1 Run Cable
=
0.65 70*1*0.65
= =
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n 248 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
320
1 Vdrop
=
%Vdrop
=
4.481
V
4.481
x
240
100
=
1.87
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
42
=
( 6 Times the full load current)
A
Drop at the time of Starting 42 Vdrop
=
x ((0.00244 ((0.00244 x 0.8) + (0.000080 (0.0000808 8 x 0.6)) x
320
1 Vdrop
=
%Vdrop
=
26.886
V
26.886
x
240
100
=
11.21
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected Ai r Dr yer 1.00 INPUT DATA 1.01 Feeder Load
P
=
2.2
kW
1.04
VT
=
0.415
kV
1.03 Length of the cable
L
=
320
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
4
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
=
√3 x V x η
2.2 / 0.8 =
√3 x 0.415x 0.95
=
Size of 16 sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 249 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16 16 sq. sq.mm mm 1Run 1Run cabl cable e 2.03 curr
0.65
=
70*1*0.65
=
46
=
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop IFL
Vdrop
=
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
4 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
320
1 Vdrop
=
%Vdrop
=
2.561
V
2.561
x
240
100
=
1.07
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x ((0. ((0.00 0024 244 4 x 0.8 0.8)) + (0. (0.00 0000 0080 808 8 x 0.6 0.6)) )) x
320
1 Vdrop
=
%Vdrop
=
15.364
V
15.364
x
240
100
=
6.41
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage
Short Time rating of the Cable Cable Iw 3.03
=
s 13.2x√t
16
=
13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs of 1.1kV grade, grade, 4C 4C x16 sq.mm, Al condu ctor, Ar moured, XLPE cable is selected CuSo4 Mixing Mixing Tank Tank A gitator 06
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
240
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
1.06 Allowable Voltage Drop
= 250 of 284
Ω / km 0.0808 Ω / km 2.44 2.5
%
HZL-BTN-ELE-DS-SY-037 1.07 Allowable Voltage Drop at Starting Condition
=
15
1.08 Current derating factors
=
0.65
7
A
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
3.7 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
240
1 Vdrop
=
%Vdrop
=
3.361 3.361 240
V x
100
=
1.41
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
=
42
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
240
1 Vdrop
=
%Vdrop
=
20.165 20.165 240
V x
100
=
8.41
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage 251 of 284
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected CuSo4 Transfer Pumps 16
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
371
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
3.7 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16sq 16sq.m .mm1 m1,R ,Run un cabl cable e 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
√3 x IFL =
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
1 Vdrop
=
%Vdrop
=
5.195 5.195 240
V x
100
=
2.17
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 252 of 284
x
371
HZL-BTN-ELE-DS-SY-037 Check for Starting Current DOL or Squirrel Cage
=
42
( 6 Times the full load current)
x
((0.371 x 0.8) + (0.00244 x 0.6))
A
Drop at the time of Starting 42 Vdrop
=
x
371
1 Vdrop
=
%Vdrop
=
31.171
V
31.171
x
240
100
=
12.99
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected CuSo4 CuSo4 Unloading pump s
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
213
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.02
=
3.7 / 0.8
√3 x V x η
=
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16sq 16sq.m .mm1 m1,R ,Run un cabl cable e 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop
√3 x IFL Vdrop
=
x (R cosΦ + X sinΦ) x
n 253 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
213
1 Vdrop
=
%Vdrop
=
2.983
V
2.983
x
240
100
=
1.25
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
213
1 Vdrop
=
%Vdrop
=
17.896
V
17.896
x
240
100
=
7.46
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Cuso4 Centrif Centrif ugal Pumps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
215
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.02
=
√3 x V x η
3.7 / 0.8 =
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 254 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
=
0.65 70x1x0.65 46
=
A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
215
1 Vdrop
=
%Vdrop
=
3.011
V
3.011
x
240
100
=
1.26
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
215
1 Vdrop
=
%Vdrop
=
26.729
V
26.729
x
240
100
=
11.14
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage
Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected SIX Transfer Transfer p umps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
L
=
225
m
Voltage rating
1.03 Length of the cable 255 of 284
HZL-BTN-ELE-DS-SY-037 1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
3.7 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
225
1 Vdrop
=
%Vdrop
=
3.151 3.151 240
V x
100
=
1.32
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
=
42
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1 Vdrop
=
%Vdrop
=
18.905 18.905 240
V x
100
=
7.88
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok 256 of 284
x
225
HZL-BTN-ELE-DS-SY-037 It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected SIX SIX Centrif Centrif ugal pum ps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
228
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.02
=
3.7 / 0.8
√3 x V
=
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
1 Vdrop
=
%Vdrop
=
3.193 3.193 240
V x
100
=
1.34
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 257 of 284
x
228
HZL-BTN-ELE-DS-SY-037 Check for Starting Current DOL or Squirrel Cage
42
=
( 6 Times the full load current)
A
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
3.7
1 Vdrop
=
%Vdrop
=
19.157
V
19.157
x
240
100
=
7.99
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Pex Pex Transfer Pumps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
210
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder I FL
P
=
√3 x V x η
=
3.7 / 0.8
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
√3 x IFL =
x (R cosΦ + X sinΦ) x
n 258 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
210
1 Vdrop
=
%Vdrop
=
2.941
V
2.941
x
240
100
=
1.23
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
3.7
1 Vdrop
=
%Vdrop
=
17.644
V
17.644
x
240
100
=
7.36
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Pex Pex Centrifug al Pumps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
211
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
√3 x V x η
3.7 / 0.8 =
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 259 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 46
=
A
3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
211
1 Vdrop
=
%Vdrop
=
2.955
V
2.955
x
240
100
=
1.24
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok
Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
211
1 Vdrop
=
%Vdrop
=
17.728
V
17.728
x
240
100
=
7.39
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage
Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Nigrosine Transfer Pumps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
202
m
1.04 AC resistance of the cable at 90°C
R
=
2.44
Ω / km
Voltage rating
260 of 284
HZL-BTN-ELE-DS-SY-037 1.05 Reactance of the cable at 50Hz
X
0.0808 Ω / km
=
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
3.7 / 0.8
√3 x V x η
=
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
202
1 Vdrop
=
%Vdrop
=
2.829 2.829 240
V x
100
=
1.18
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
=
42
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0. (0.00244 x 0.8) + (0.0000808 x 0.6))
x
202
1 Vdrop
=
%Vdrop
=
16.972 16.972 240
V x
100
=
7.08
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage 261 of 284
HZL-BTN-ELE-DS-SY-037 Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Nigrosine Centrifugal Pumps (3% solut ion)
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
202
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
3.7 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
1 Vdrop
=
%Vdrop
=
2.829 2.829 240
V x
100
=
1.18
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 262 of 284
x
202
HZL-BTN-ELE-DS-SY-037 Check for Starting Current DOL or Squirrel Cage
42
=
( 6 Times the full load current)
A
Drop at the time of Starting 42 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
202
1 Vdrop
=
%Vdrop
=
16.972
V
16.972
x
240
100
=
7.08
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Diluted Nigrosin e Centrifu Centrifu gal Pump(0.25 Pump(0.25% % soluti on)
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
190
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
3.7 / 0.8
√3 x V x η
=
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
=
x (R cosΦ + X sinΦ) x
n 263 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
190
1 Vdrop
=
%Vdrop
=
2.661
V
2.661
x
240
100
=
1.11
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
190
1 Vdrop
=
%Vdrop
=
15.964
V
15.964
x
240
100
=
6.66
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected MIBC MIBC metering pum p
1.00 INPUT DATA 1.01 Feeder Load
P
=
0.37
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
202
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
1
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
√3 x V x η
0.37 / 0.8 =
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 264 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 46
=
A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
1 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
202
1 Vdrop
=
%Vdrop
=
0.404
V
0.404
x
240
100
=
0.17
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
6
=
A
( 6 Times the full load current)
Drop at the time of Starting 6 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
202
1 Vdrop
=
%Vdrop
=
2.425
V
2.425
x
240
100
=
1.02
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage
Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected NaCN NaCN transfer pu mps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
230
m
1.04 AC resistance of the cable at 90°C
R
=
2.44
Ω / km
Voltage rating
265 of 284
HZL-BTN-ELE-DS-SY-037 1.05 Reactance of the cable at 50Hz
X
0.0808 Ω / km
=
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
3.7 / 0.8
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
230
1 Vdrop
=
%Vdrop
=
3.221 3.221 240
V x
100
=
1.35
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
=
42
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
1 Vdrop
=
%Vdrop
=
19.325 19.325 240
V x
100
=
8.06
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok 266 of 284
x
230
HZL-BTN-ELE-DS-SY-037 It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Op Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected NaCN Centrifugal pumps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
175
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.02
=
3.7 / 0.8
√3 x V x η
=
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
1 Vdrop
=
%Vdrop
=
2.451 2.451 240
V x
100
=
1.03
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 267 of 284
x
175
HZL-BTN-ELE-DS-SY-037 Check for Starting Current DOL or Squirrel Cage
42
=
( 6 Times the full load current)
A
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
175
1 Vdrop
=
%Vdrop
=
14.704
V
14.704
x
240
100
=
6.13
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Spare Transfer Pump Pump s
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
210
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
3.7 / 0.8
√3 x V x η
=
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
= n
268 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
210
1 Vdrop
=
%Vdrop
=
2.941
V
2.941
x
240
100
=
1.23
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
210
1 Vdrop
=
%Vdrop
=
17.644
V
17.644
x
240
100
=
7.36
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Spare Centrif Centrif ugal Pumps
1.00 INPUT DATA 1.01 Feeder Load
P
=
3.7
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
206
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
√3 x V x η
3.7 / 0.8 =
√3 x 0.415x 0.95
=
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 269 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
0.65
= =
70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
=
L
n Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
206
1 Vdrop
=
%Vdrop
=
2.885
V
2.885
x
240
100
=
1.21
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
206
1 Vdrop
=
%Vdrop
=
17.308
V
17.308
x
240
100
=
7.22
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Pb filter Manifold wash water pumps
1.00 INPUT DATA 1.01 Feeder Load
P
=
4
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
368
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
270 of 284
HZL-BTN-ELE-DS-SY-037 1.08 Current derating factors
=
0.65
7
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
2.02
=
4 / 0.8 =
√3 x V
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
2.03 Current carrying capacity of 16 sq.mm1 Run Cable
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cos Φ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
7 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
368
1 Vdrop
=
%Vdrop
=
5.153
V
5.153
x
240
100
=
2.15
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
42
=
A
( 6 Times the full load current)
Drop at the time of Starting 42 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x
368
1 Vdrop
=
%Vdrop
=
30.919
V
30.919
x
240
100
=
12.89
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected 271 of 284
HZL-BTN-ELE-DS-SY-037 Sealing Sealing water Pump for Pb. Filter feed pump No.70 No.70 1.00 INPUT DATA 1.01 Feeder Load
P
=
0.37
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
305
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
1
A
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P IFL
2.02
=
0.37 / 0.8
√3 x V
=
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 16 sq.mm1 Run Cable
=
0.65 70*1*0.65
= =
46
A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
1 Vdrop
=
x
((0. ((0.00 0024 244 4 x 0.8) 0.8) + (0. (0.00 0000 0080 808 8 x 0.6) 0.6)))
x
305
1 Vdrop
=
%Vdrop
=
0.61 0.61 240
V x
100
=
0.26
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check Check for Starting Current DOL or Squirrel Cage
=
6
A
( 6 Times the full load current)
Drop at the time of Starting 6 Vdrop
=
x ((0.00244 x 0.8) + (0.0000808 x 0.6)) x 1 272 of 284
305
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
3.661
V
3.661
x
240
100
=
1.53
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that motor has been selected to start upto 80% of rated voltage Short Time rating of the Cable Cable Iw
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
3.04 1 run of 1.1kV 1.1kV grade, grade, 4C x16sq.mm, x16sq.mm, Al co nducto r, Armour ed, XLPE XLPE cable cable is selected GSS TO MPP MLDB 1.00 INPUT DATA 1.01 Feeder Load
P
=
100
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
500
m
1.04 AC resistance of the cable at 90°C
R
=
0.161
1.05 Reactance of the cable at 50Hz
X
=
0.071
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factors
=
0.65
Voltage rating
kVA
Ω / km Ω / km %
2.00 Calculation 2.01 Full load curr ent rating of the Feeder Feeder P I FL
100
=
=
=
√3 x V 2.02
139
A
√3 x 0.415
Size of 240 Sq.mm 3.5 core Aluminium cable is selected for checking. Rating factor for Ambient Cable size Current Rating at 35°C Temperature 35°C 240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non linear loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty 2.03 Current carrying capacity of 240 sq.mm1 Run Cable
=
0.65 399*1*0.65
= =
259 A
3.00 Check Check for vo ltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
L
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
139 Vdrop
=
x
((0.000161 x 0.8) + (0.000071 x 0.6))
1 273 of 284
x
500
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
11.912
V
11.912
x
240
100
=
4.97
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Short Time rating of the Cable Cable Iw
=
s
240
=
13.2x√t
=
13.2*√.2
40.7
KA/0.2Sec
(Fuse Operated)
3.03 1 run of 1.1kV grade, 3.5C 3.5C x240sq.mm, Al condu cto r, Armou red, XLPE cable is selected PMCC TO MCC INCOMER 1.00 INPUT DATA 1.01 Feeder Load
P
=
460
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
50
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0705 Ω / km 0.129
1.06 Allowable Voltage Drop
=
5
1.07 Current derating factor
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
√3 x V
460 / 0.8
=
=
√3 x 0.415
800
A
Size of 300 Sq.mm 3.5 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
300
1.0
455 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Tota Totall fact factor or to to be app appli lied ed for for arri arrivi ving ng at at the the capa capaci city ty
=
0.65
= 455x3x0.65
curren entt carr carryi ying ng cap capac acit ity y of 300 300sq sq.m .mm, m,3R 3Run un cab cable le 2.03 curr
=
887 A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
800 Vdrop
=
x
((0.0 ((0.000 0012 129 9 x 0.8) 0.8) + (0. (0.00 0000 0070 705 5 x 0.6)) 0.6))
3 274 of 284
x
50
HZL-BTN-ELE-DS-SY-037 Vdrop
=
%Vdrop
=
1.94
V
1.94
x
240
100
=
0.81
%
With in the permissible limit s of 5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw 3.03
s
=
300
=
13.2x√t
=
13.2*√1
22.7
KA/1Sec
(ACB Op Operated)
3 runs of 1.1kV grade, 3.5 3.5C C x300 x300 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected LIGHTING TRANSFORMER TO MLDB
1.00 INPUT DATA 1.01 Feeder Load
P
=
500
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
40
m
1.04 AC resistance of the cable at 90°C
R
=
0.161
1.05 Reactance of the cable at 50Hz
X
=
0.071
1.06 Allowable Voltage Drop
=
2.5
1.07 Current derating factors
=
0.65
Voltage rating
KVA
Ω / km Ω / km %
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
500
=
=
=
√3 x V
696
A
√3 x 0.415
Size of 240 Sq.mm 4 core Aluminium cable is selected for checking.
2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
240
1.0
399 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
= 399x3x0.65
curren entt carr carryi ying ng cap capac acit ity y of 240 240sq sq.m .mm, m,3R 3Run un cab cable le 2.03 curr
= 3.00 Check for voltage drop 3.01 Voltage drop IFL Vdrop
x (R cosΦ + X sinΦ) x
= n
Where, cosΦ
=
0.8
(Assumed) 275 of 284
0.65
L
778 A
HZL-BTN-ELE-DS-SY-037 sinΦ
=
0.6
696 Vdrop
=
x
((0.0 ((0.000 0016 161 1 x 0.8) 0.8) + (0. (0.00 0000 0071 71 x 0.6 0.6)) ))
x
40
3 Vdrop
=
%Vdrop
=
1.591
V
1.591
x
240
100
=
0.67
%
With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok 3.02 Short Time rating of the Cable Cable Iw 3.03
s
=
240
=
13.2x√t
=
13.2*√.2
40.7
KA/0.2Sec
(Fuse Operated)
3 runs of 1.1kV grade, 3.5 3.5C C x240 x240 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected
PMCC TO AUX. SWITCH BOARD 1.00 INPUT DATA 1.01 Feeder Load
P
=
230
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
50
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0718 Ω / km 0.21
1.06 Allowable Voltage Drop
=
2.5
1.07 Current derating factors
=
0.65
%
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P IFL
=
230 / 0.8
√3 x V
=
=
√3 x 0.415
400
A
Size of 185 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
185
1.0
337 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty
=
= 337x2x0.65
curren entt carr carryi ying ng cap capac acit ity y of 185 185sq sq.m .mm, m,2R 2Run un cab cable le 2.03 curr
= 3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
x (R cosΦ + X sinΦ) x
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
276 of 284
0.65
L
438 A
HZL-BTN-ELE-DS-SY-037 400
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.00021 x 0.8) + (0.0000718 x 0.6))
x
50
2 2.111
V
2.111 x
100
=
0.88
%
240
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Short Time rating of the Cable Cable s
Iw 3.03
=
185 =
13.2x√t
=
13.2*√.2
31.3
KA/0.2Sec
2 runs of 1.1kV grade, 3.5 3.5C C x185 x185 sq.mm, Al conduc tor, Ar moured, XLPE cable is selected SIX SIX MixingTank Agit ator
1.00 INPUT DATA 1.01 Feeder Load
P
=
2.2
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
270
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
4
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.2 / 0.98
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
n
x (R cosΦ + X sinΦ) x
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
277 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 4
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
270
1 2.161
V
2.161
x
240
100
=
0.91
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
270
1 Vdrop
=
%Vdrop
=
12.963
V
12.963
x
240
100
=
5.41
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Pex Pex MixingTank Agit ator
1.00 INPUT DATA 1.01 Feeder Load
P
=
2.2
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
211
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
4
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
2.2 / 0.98 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
278 of 284
HZL-BTN-ELE-DS-SY-037 Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 46
=
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
4
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
211
1 1.688
V
1.688
x
240
100
=
0.71
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
211
1 Vdrop
=
%Vdrop
=
10.13
V
10.13
x
240
100
=
4.23
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Pex Pex Storage Tank Agi tator
1.00 INPUT DATA 1.01 Feeder Load
P
=
2.2
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
211
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
279 of 284
HZL-BTN-ELE-DS-SY-037 2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.2 / 0.98
=
=
√3 x V x η
=
4
A
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop IFL
Vdrop
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
4
Vdrop
=
Vdrop
=
%Vdrop
=
x
1 1.688
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
211
V
1.688
x
240
100
=
0.71
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
211
1 Vdrop
=
%Vdrop
=
10.13
V
10.13
x
240
100
=
4.23
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected 280 of 284
HZL-BTN-ELE-DS-SY-037 Nacn Nacn Mixing tank Ag itator 1.00 INPUT DATA 1.01 Feeder Load
P
=
1.1
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
230
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
2
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
1.1 / 0.98
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
x (R cosΦ + X sinΦ) x
=
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
2 Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
1 Vdrop
=
%Vdrop
=
0.92 0.92 240
V x
100
=
0.39
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
=
12
A
( 6 Times the full load current)
281 of 284
230
HZL-BTN-ELE-DS-SY-037 Drop at the time of Starting 12 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
230
1 Vdrop
=
%Vdrop
=
5.521
V
5.521
x
240
100
=
2.31
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Nacn Nacn Stor age Tank Tank A gitator
1.00 INPUT DATA 1.01 Feeder Load
P
=
2.2
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
230
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
4
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
2.2 / 0.98
=
=
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL =
n
x (R cosΦ + X sinΦ) x
282 of 284
L
46
A
HZL-BTN-ELE-DS-SY-037 Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
4
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
230
1 1.84
V
1.84
x
240
100
=
0.77
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
230
1 Vdrop
=
%Vdrop
=
11.043
V
11.043
x
240
100
=
4.61
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
s
=
16
=
13.2x√t
=
13.2*√.2
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected Spare Mixing Tank Agitator
1.00 INPUT DATA 1.01 Feeder Load
P
=
2.2
kW
1.02
VT
=
0.415
kV
1.03 Length of the cable
L
=
275
m
1.04 AC resistance of the cable at 90°C
R
=
1.05 Reactance of the cable at 50Hz
X
=
Voltage rating
Ω / km 0.0808 Ω / km 2.44
1.06 Allowable Voltage Drop
=
2.5
%
1.07 Allowable Voltage Drop at Starting Condition
=
15
%
1.08 Current derating factors
=
0.65
4
A
2.00 Calculation 2.01 Full load cur rent rating o f the Feeder Feeder P I FL
=
2.2 / 0.98 =
√3 x V x η
=
√3 x 0.415x 0.95
Size of 16 Sq.mm 4 core Aluminium cable is selected for checking. 2.02
Cable size
Rating factor for Ambient Temperature 35°C
Current Rating at 35°C
16
1.0
70 A
(Ref : Power Engineers Handbook 25.66, Table 57) 283 of 284
HZL-BTN-ELE-DS-SY-037 Factor for grouping of cables
=
0.86
Reduction Factor
=
0.9
Factor for Non leaner loads
=
0.8
Total Total fact factor or to to be applie applied d for for arriv arriving ing the capaci capacity ty curren entt car carry ryin ing g cap capac acit ity y of of 16s 16sq. q.mm mm,1 ,1Ru Run n cab cable le 2.03 curr
= =
0.65 70x1x0.65 =
46
A
3.00 Check for voltage drop 3.01 Voltage drop Vdrop
IFL
=
x (R cosΦ + X sinΦ) x
L
n
Where, cosΦ
=
0.8
sinΦ
=
0.6
(Assumed)
4
Vdrop
=
Vdrop
=
%Vdrop
=
x
((0.0 ((0.002 0244 44 x 0.8 0.8)) + (0.0 (0.000 0008 0808 08 x 0.6 0.6)) ))
x
275
1 2.201
V
2.201
x
240
100
=
0.92
%
3.02 With in the permissi ble limit of 2.5% 2.5% voltage drop hence ok Check for Starting Current DOL or Squirrel Cage
24
=
A
( 6 Times the full load current)
Drop at the time of Starting 24 Vdrop
=
x
((0.00244 x 0.8) + (0.0000808 x 0.6))
x
275
1 Vdrop
=
%Vdrop
=
13.203
V
13.203
x
240
100
=
5.51
%
3.03 With in the permissi ble limit of 15% 15% voltage drop hence ok It is to be noted that moto r has been selected selected to start upt o 80% of rated voltage Short Time rating of the Cable Cable Iw 3.04
=
s 13.2x√t
=
16 13.2*√.2
=
2.71
KA/0.2Sec
(Fuse Operated)
1 runs o f 1.1kV 1.1kV grade, 4C 4C x16 sq.mm, sq.mm, Al conduc tor, Ar moured, XLPE cable cable is s elected elected
284 of 284
