Relay Setting Chart

CLIENT

M/s. KWALE INTERNATIONAL SUGAR COMPANY LTD, KENYA

CONSULTANT

M/s. JP MUKHERJI & ASSOCIATES PVT LTD, PUNE, MH

EPC CONTRACTOR M/s. ISGEC HEAVY ENGINEERING LTD, NOIDA, UP

PROJECT

EPC ELECTRICAL CONTRACTOR

1x18 MW CO-GEN POWER PLANT

IKE ELECTRIC PVT. LTD. 601 - 602, MARIEGOLD NECO GARDENS, VIMAN NAGAR, PUNE - 411 014 MAHARASHTRA INDIA PHONE - 020 - 66290300 / 301 TELEFAX - 020 - 66290302

DOCUMENT TITLE RELAY SETTING CHART FOR 33KV SWITCHYARD

DOCUMENT NO.

IKE-ISGEC-KWL61-DOC-233

REVISION

00

DATE

11.10.2013

NO. OF SHEETS

PREPARED BY

CHECKED BY

APPROVED BY

**Sheets (Including Title Sheet)

ARD

KBD

ABH

RELAY SETTING CHART- 33KV SWITCHYARD RELAY Sr.No Protection Description Type ref. 33KV Transformer Control and Relay Panel I 1 87GT, 64R, 99 Numerical Transformer MICOM P 632 Protection Relay

Setting Range Differential Protection (87GT) Idiff>=0.1-2.5 Iref Idiff>=2.5-30 Iref Idiff>>>=2.5-30 Iref m1: 0.15-1.5 m2: 0.15-1.5 IR,m2 (1.5-10.0 Iref) Op.del, trip signal:0-100S Restricted earthfault protection(64R) Effective setting: 10% High Impedance relay Stabilising resistor (0-1000) Ohm

2

50/51 50N/51N 67/67N, 50LBB 78, 27Z, 59, 81 60, 81R, 99, 27

PREPARED BY: ARD

Numerical Interconnection Protection Relay

MICOM P341

Recommended Setting

Idiff>:0.1

Remarks

LV: CTR: 500/1A HV: CTR: 200/1 A NCTR: *** A

m1: 0.2 m2: 0.7 4

10%In NCTR: *** A Rst: 200

ohm

Overcurrent protection (51) In: 0.08-4In T: 0-100 sec

0.75*In 0.1

sec

IDMT characterictics 3 Sec Curve

Inst. Overcurrent protection (50) In: 0.08-32In T: 0-100 sec

6*In 0

sec (Inst)

CTR: 200/1A PTR: 33KV/110V

Earth fault protection (51N) Ie: 0.08-4In T: 0-100 sec

0.2*In 0.1

Sec


Inst.Earth fault protection (50N) Ie: 0.08-4In T: 0-100 sec

0.3*In 0.5

sec

1 of 10 CHECKED BY: KBD

APPROVED BY: ABH

RELAY SETTING CHART- 33KV SWITCHYARD RELAY Sr.No

Protection Description Type ref. 33KV Transformer Control and Relay Panel

PREPARED BY: ARD

Recommended Setting

Setting Range Dir. Overcurrent protection (67) In: 0.08-32In T: 0-100 sec

0.75*In 0.35

Dir. Earth fault protection (67N) Ie: 0.08-32In T: 0-100 sec

0.1*In 0.35

sec

Under volatge protection (27) U<: 10-120V T: 0-100 sec

80 2

V sec

Over voltage protection (59) U>: 60-185V T: 0-100 sec

121 3

V sec

Under frequency protection (81U) f<: 45-65Hz T: 0-100 sec

47.7 2

Hz sec

Over frequency protection (81O) f>: 45-65Hz T: 0-100 sec

52 2

Hz sec

Local Breaker back-up protection (50LBB) In: 0.4-4*In Time delay

1*In 0.3

sec

df/dt protection (81R) df/dt: 0.1-10Hz/sec T: 0-100 sec

4 Inst

Hz/ sec Inst


Remarks RCA: 30 deg

sec

RCA: 45 deg

PTR: 33KV/110V

CTR: 200/1A

APPROVED BY: ABH



Recommended Setting

Setting Range Dead band lower frequency 45-65Hz

Remarks

49

Hz

Dead band upper frequency 45-65Hz

51

Hz

Vector surge protection (78) dv/dt: 2-30 deg

7

deg

Standby Earth fault protection (51G) Ie: 0.08-4In T: 0-100 sec

0.3 * In 0.3

Sec

CTR: 200/1 A IDMT curve (3 sec)

0.9 * In 0.1

Sec

IDMT curve (3 sec)

6 * In 0

Sec

CTR: 500 / 1 A PTR: 11kV / 110 V

Voltage Balance Relay (60) *** *** Overfluxing Protection Relay (99) *** ***

3

50/51 Numerical 50N/51N protection relay (LV side of GT)

MICOM P111L IDMT overcurrent protection (51) In: 0.08-4In TMS: 0.025-1 Inst. Overcurrent protection (50) In: 0.08-32In T: 0-100 sec

PREPARED BY: ARD


APPROVED BY: ABH


4


27, 59 59D

Numerical protection relay

MICOM P921

Recommended Setting

Setting Range IDMT Earth fault protection (51N) Ie: 0.08-4In TMS: 0.1-1

0.2 * In 0.3

Sec


0.3 * In 0.3

Sec

Under voltage protection (27) U<: 10-120V T: 0-100 sec

0.8 0.5

sec


1.1 0.5

sec

Neutral displacement protection (59DLV) V: 5.4 -20V TMS

5.4 0.1

V sec

Remarks IDMT curve (3 sec)

NOTE: a) All settings are referred with respect to secondary values. b) All the other functions which are not mentioned in this chart shall be disabled.

PREPARED BY: ARD


APPROVED BY: ABH

CLIENT

M/s. KWALE INTERNATIONAL SUGAR COMPANY LTD, KENYA

CONSULTANT

M/s. JP MUKHERJI & ASSOCIATES PVT LTD, PUNE, MH

EPC CONTRACTOR M/s. ISGEC HEAVY ENGINEERING LTD, NOIDA, UP

PROJECT

EPC ELECTRICAL CONTRACTOR

1x18 MW CO-GEN POWER PLANT

IKE ELECTRIC PVT. LTD. 601 - 602, MARIEGOLD NECO GARDENS, VIMAN NAGAR, PUNE - 411 014 MAHARASHTRA INDIA PHONE - 020 - 66290300 / 301 TELEFAX - 020 - 66290302

DOCUMENT TITLE RELAY SETTING CHART FOR 132KV SWITCHYARD

DOCUMENT NO.

IKE-ISGEC-KWL61-DOC-133

REVISION

00

DATE

11.10.2013

NO. OF SHEETS

PREPARED BY

CHECKED BY

APPROVED BY

**Sheets (Including Title Sheet)

ARD

KBD

ABH

RELAY SETTING CHART- 132KV SWITCHYARD RELAY Recommended Setting Sr.No Protection Description Type ref. Setting Range 132KV Transformer Control and Relay Panel I 1 87GT, 64R, 99 Numerical Transformer MICOM P 632 Differential Protection (87GT) Protection Relay Idiff>=0.1-2.5 Iref Idiff>:0.1 Idiff>=2.5-30 Iref Idiff>>>=2.5-30 Iref m1: 0.15-1.5 m1: 0.2 m2: 0.15-1.5 m2: 0.7 IR, m2 (1.5-10.0 Iref) 4 Op.del, trip signal:0-100S Restricted earthfault protection(64R) Effective setting: 10% High Impedance relay Stabilising resistor (0-1000) Ohm 2

PREPARED BY: ARD

50/51 50N/51N 67/67N, 50LBB 78, 27Z, 59, 81 60, 81R, 99, 27

Numerical Interconnection Protection Relay

MICOM P341

LV: CTR: 1500/1A HV: CTR: 150/1 A NCTR: *** A

10%In NCTR: *** A Rst:200

Overcurrent protection (51) In: 0.08-4In T: 0-100 sec

0.75*In 0.1


6*In 0

Earth fault protection (51N) Ie: 0.08-4In T: 0-100 sec Inst.Earth fault protection (50N) Ie: 0.08-4In T: 0-100 sec


Remarks

ohm IDMT characterictics 3 Sec Curve

sec (Inst)

CTR: 150/1A PTR: 132KV/110V

0.2*In 0.1

Sec


0.3*In 0.5

sec

APPROVED BY: ABH

Sr.No

PREPARED BY: ARD

RELAY SETTING CHART- 132KV SWITCHYARD RELAY Recommended Setting Protection Description Type ref. Setting Range 132KV Transformer Control and Relay Panel Dir. Overcurrent protection (67) In: 0.08-32In 0.75*In T: 0-100 sec 0.35 sec Dir. Earth fault protection (67N) Ie: 0.08-32In T: 0-100 sec

0.1*In 0.35

sec

Under volatge protection (27) U<: 10-120V T: 0-100 sec

80 2

V sec


121 3

V sec

Under frequency protection (81U) f<: 45-65Hz T: 0-100 sec

47.7 2

Hz sec

Over frequency protection (81O) f>: 45-65Hz T: 0-100 sec

52 2

Hz sec

Local Breaker back-up protection (50LBB) In: 0.4-4*In Time delay

1*In 0.3

sec

df/dt protection (81R) df/dt: 0.1-10Hz/sec T: 0-100 sec

4 Inst


Remarks RCA: 30 deg

RCA: 45 deg

PTR: 132KV/110V

CTR: 150/1A

Hz/ sec

APPROVED BY: ABH

Sr.No

RELAY SETTING CHART- 132KV SWITCHYARD RELAY Recommended Setting Protection Description Type ref. Setting Range 132KV Transformer Control and Relay Panel Dead band lower frequency 45-65Hz 49 Hz Dead band upper frequency 45-65Hz

Remarks

51

Hz

Vector surge protection (78) dv/dt: 2-30 deg

7

deg

Standby Earth fault protection (51G) Ie: 0.08-4In T: 0-100 sec

0.3 * In 0.3

Sec

CTR: 150/1 A IDMT curve (3 sec)

0.7 * In 0.1

Sec

IDMT curve (3 sec)

6 * In 0

Sec

CTR: 1500 / 1 A PTR: 11kV / 110 V

Voltage Balance Relay (60) *** *** Overfluxing Protection Relay (99) *** ***

3

50/51 50N/51N (LV side of GT)


MICOM P111L IDMT overcurrent protection (51) In: 0.08-4In TMS: 0.025-1 Inst. Overcurrent protection (50) In: 0.08-32In T: 0-100 sec

PREPARED BY: ARD


APPROVED BY: ABH

Sr.No

4

5

RELAY SETTING CHART- 132KV SWITCHYARD RELAY Recommended Setting Protection Description Type ref. Setting Range 132KV Transformer Control and Relay Panel IDMT Earth fault protection (51N) Ie: 0.08-4In 0.2 * In TMS: 0.1-1 0.3 Sec

50/51 Numerical 50N/51N protection relay (HV side of GT)

27, 59 59D


MICOM P127

MICOM P921

Remarks IDMT curve (3 sec)


0.3 * In 0.3

Sec

IDMT overcurrent protection (51) In: 0.08-4In TMS: 0.025-1

0.7 * In 0.1

Sec

IDMT curve (3 sec)


6 * In 0

Sec

CTR: 1500 / 1 A PTR: 132kV / 110 V

IDMT Earth fault protection (51N) Ie: 0.08-4In TMS: 0.1-1

0.2 * In 0.3

Sec


0.3 * In 0.3

Sec

Under voltage protection (27) U<: 10-120V T: 0-100 sec

0.8 0.5

sec


1.1 0.5

sec

Neutral displacement protection (59DLV) V: 5.4 -20V TMS

5.4 0.1

V sec

IDMT curve (3 sec)

NOTE: a) All settings are referred with respect to secondary values. b) All the other functions which are not mentioned in this chart shall be disabled.

PREPARED BY: ARD


APPROVED BY: ABH

Relay Setting Chart

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