Industrial Motor Solutions SEL 710

Industrial and Plant Protection Session Industrial Motor Solutions Available Data for SEL-710 Retrofit Motor Data Motor horsepower: 2700 hp Rated voltage: 4000 V Full load amperes (FLA): 359 A Service factor: 1.15 Locked rotor current: 2334 A Hot stall time: 18 seconds Overload time at 2 per unit (pu): unknown

System Data System phase rotation: ABC Phase current transformer (CT) ratio: 500/5 Ground CT ratio: 50/5 (zero-sequence (zero-sequence connection) Phase potential transformer (PT) ratio: 4200/120 Phase PT connection: open delta Maximum bus fault: 30841 A Maximum ground fault: 400 A Contactor interrupting rating: 720 A Fuse: CLF 38R

Other Application Information Contactor to trip on:

Industrial Motor Solutions

Overload Unbalance Ground overcurrent Phase rotation Load jam Resistance temperature detector (RTD) Acceleration Lockouts Single phase

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Solutions SEL-710 Main Settings Identifier UNIT ID LINE 1 (16 characters)

RID :=

NAT GAS COMP A

UNIT ID LINE 2 (16 characters)

TID :=

I-44

Configuration PHASE ROTATION (ABC, ACB)

PHROT

:=

ABC

PHASE CT RATIO (1 to 5000)

CTR1

:=

100

MOTOR FLA (0.20 to 5000.00 A)

FLA1

:=

359.00

TWO SPEED ENABLE (Y, N)

E2SPEED :=

N

NEUTRAL CT RATIO (1 to 2000)

CTRN

:=

10

PHASE PT RATIO (1.00 to 250.00)

PTR

:=

35.00

LINE VOLTAGE (100 to 30000 V)

VNOM

:=

4160

XFMR CONNECTION (WYE, DELTA)

DELTA_Y :=

DELTA

SINGLE V INPUT (Y, N)

SINGLEV :=

N

Thermal Overload Settings: Function 49T Existing Relay Data Relay type: GE Multilin SR 269+ Minimum pickup: 1.25 • full load current (FLC) Custom curve enabled: no Selected overload curve: 3 Initial start thermal capacity: 40 percent Start inhibit enabled: no FLC thermal capacity reduction: 15 percent Thermal capacity used (TCU) alarm level: off Defeat learned cool time: yes Running cool time: 15 minutes Stopped cool time: 30 minutes Defeat RTD thermal memory input: yes


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Your SEL-710 Relay Settings OVERLOAD ENABLE (Y, N)

E49MOTOR :=

Y

FULL LOAD SLIP (OFF, 0.0010 to 0.1000 pu)

FLS

:=

OFF

THERMAL METHOD (RATING, RATING_1, CURVE) SETMETH

:=

RATING

OL RESET LEVEL (10 to 99 %TCU)

49RSTP

:=

75

SERVICE FACTOR (1.01 to 1.50)

SF

:=

1.15

MOTOR LRA (2.50 to 12.00 xFLA)

LRA1

:=

6.50

LOCKD RTR TIME 1 (1.00 to 600.00 seconds)

LRTHOT1

:=

6.00

ACCEL FACTOR (0.10 to 1.50)

TD1

:=

1.00

STATOR TC (AUTO, 1.00 to 2000.00 minutes)

RTC1

:=

AUTO

OL WARN LEVEL (OFF, 50 to 99 %TCU)

TCAPU

:=

OFF

START INH. LEVEL (OFF, 1 to 99 %TCU)

TCSTART

:=

40

LEARN TCSTART? (Y, N)

TCLRNEN

:=

N

STOP COOL TIME (1.00 to 6000.00 minutes)

COOLTIME :=

61.00

LEARN COOLTIME? (Y, N)

COOLEN

:=

N

OL RTD BIASING? (Y, N)

ETHMBIAS :=

N

FLS: This is not a high-inertia motor and therefore does not require this option for starting. SETMETH: Use the rating method for a retrofit. 49RSTP: This setting maintains a 49T lockout until the stator thermal capacity is low enough to allow for a successful start. Set 49RSTP < 100/SF 2. LRA1: 2334 A/359 A = 6.5 LRTHOT1: Although the coordination curve provided a hot stall time of 18 seconds, the operate time of Curve 3 in the SR 269+ at the LRA is 6 seconds. Therefore, to maintain similarity to the installed settings that have been proven over the years, 6 seconds is selected for this setting. TD1: This setting should always be 1, unless you know that the load will accelerate in less than the locked rotor time. RTC1: Because no time constant data for the motor are available, set to AUTO. The relay calculates the motor RTC as follows: RTC = 1.2 • 6/(60 • Ln((6.52 – 0.81 • 1.152)/6.52 – 1.152)) = 20 minutes. TCAPU: The TCU alarm is turned off in the SR 269+, so turn it off in the SEL-710 as well. Normally, this should be set as TCAPU > 100/SF 2. TCSTART: This defines the rotor thermal capacity required for a successful start. The relay prevents a motor start until the rotor thermal capacity is less than 100 – TCSTART. From the SR 269+ setting for initial start thermal capacity, set this to 40 percent. TCLRNEN: The SR 269+ setting for start inhibit enabled allows the relay to learn the thermal capacity required to start the motor and set the initial start thermal capacity setting in the relay. Because this is set to no in the SR 269+, the TCLRNEN setting in the SEL-710 should be set to N.


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COOLTIME: Although the SR 269+ is set with a running cool time of 15 minutes and a stopped cool time of 30 minutes, the SEL-710 requires that COOLTIME > 3 • RTC. Therefore, set COOLTIME = 3 • 20 + 1 = 61 minutes. COOLEN: The SR 269+ setting for defeat learned cool time is set to yes. ETHMBIAS: The SR 269+ setting for defeat RTD thermal memory input is set to yes. Note: The SR 269+ setting for FLC thermal capacity reduction defines the thermal capacity the element drops to when the current equals the FLC. This setting is not required in the SEL-710, which accurately tracks temperature at and below the FLC.

Immediate Overload Alarm Settings: Function 50P1 Existing Relay Data Relay type: GE Multilin SR 269+ Immediate overload level: 1.50 • FLC Alarm time delay: 0 seconds

Your SEL-710 Relay Settings PH OC WARN LVL (OFF, 0.10 to 20.00 xFLA)

50P2P :=

1.50

PH OC WARN DLAY (0.00 to 5.00 seconds)

50P2D :=

0.00

Neutral Overcurrent Settings: Function 50N1 Existing Relay Data Relay type: GE Multilin SR 269+ Element name: 50G Minimum alarm pickup: 0.6 • CT Alarm time delay: 1 second Minimum trip pickup: 1.0 • CT Trip time delay: 0.5 seconds

Your SEL-710 Relay Settings NEUT OC TRIP LVL (OFF, 0.01 to 650.00 A)

50N1P :=

50.00

NEU OC TRIP DLAY (0.00 to 5.00 seconds)

50N1D :=

0.50

NEUT OC WARN LVL (OFF, 0.01 to 650.00 A)

50N2P :=

30.00

NEU OC WARN DLAY (0.00 to 120.00 seconds)

50N2D :=

1.00

50N1P: 1.0 • 50 = 50 A primary 50N2P: 0.6 • 50 = 30 A primary


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Load Jam Settings: Function LJ Existing Relay Data Relay type: GE Multilin SR 269+ Mechanical jam alarm level: off Rapid/mechanical jam trip level: 4.0 • FLC Rapid trip delay: 4 seconds

Your SEL-710 Relay Settings JAM TRIP LEVEL (OFF, 1.00 to 6.00 xFLA)

LJTPU

:=

4.00

JAM TRIP DELAY (0.00 to 120.00 seconds)

LJTDLY :=

4.00

JAM WARN LEVEL (OFF, 1.00 to 6.00 xFLA)

LJAPU

OFF

:=

Current Unbalance Settings: Function 46UB Existing Relay Data Relay type: GE Multilin SR 269+ Alarm minimum pickup: 15 percent Alarm time delay: 5 seconds Trip minimum pickup: 20 percent Trip time delay: 5 seconds

Your SEL-710 Relay Settings CI TRIP LEVEL (OFF, 5 to 80 percent)

46UBT

:=

CI TRIP DELAY (0.00 to 240.00 seconds)

46UBTD :=

5.00

CI WARN LEVEL (OFF, 5 to 80 percent)

46ABT

15

CI WARN DELAY (0.00 to 240.00 seconds)

46ABTD :=


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:=

20

5.00

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Starting Settings Existing Relay Data Relay type: GE Multilin SR 269+ Acceleration time: 10 seconds Starts per hour: 3 Single-shot restart enabled: no Special external reset enabled: no Backspin timer: off Time between starts: off Defeat speed switch input: yes

Your SEL-710 Relay Settings START MOTOR TIME (OFF, 1.00 to 240.00 seconds)

START_T

:=

10.00

STAR-DELTA ENABL (Y, N)

ESTAR_D

:=

N

STARTS/HR. (OFF, 1 to 15)

MAXSTART :=

3

MIN. OFF TIME (OFF, 1.00 to 150.00 minutes)

TBSDLY

:=

OFF

RESTART BLK TIME (OFF, 1.00 to 1500.00 minutes)

ABSDLY

:=

OFF

SS TRIP DELAY (OFF, 1.00 to 240.00 seconds)

SPDSDLYT :=

OFF

SS WARN DELAY (OFF, 1.00 to 240.00 seconds)

SPDSDLYA :=

OFF

Phase Reversal Settings: Function 47T Existing Relay Data Relay type: GE Multilin SR 269+ Enable voltage phase reversal: no

Your SEL-710 Relay Settings PH REV. ENABLE (Y, N)


E47T :=

N

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RTD Settings: Function 49RTD Existing Relay Data Relay type: GE Multilin SR 269+ Sensor type: 100 Ω platinum RTDs connected: yes RTD message display: Celsius Number of stator RTDs: 3 RTD 1 alarm level: 130°C RTD 1 high alarm level: off RTD 1 trip level: 140°C RTD 2 alarm level: 130°C RTD 2 high alarm level: off RTD 2 trip level: 140°C RTD 3 alarm level: 130°C RTD 3 high alarm level: off RTD 3 trip level: 140°C RTD 7 alarm level: 130°C RTD 7 trip level: 140°C RTD 8 alarm level: 130°C RTD 8 trip level: 140°C RTDs 4, 6, 9, and 10 are not used. RTDs 7 and 8 are bearing RTDs. Enable stator RTD voting: yes


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Your SEL-710 Relay Settings RTD ENABLE (INT, EXT, NONE)

E49RTD

:=

INT

RTD1 LOCATION (OFF, WDG, BRG, AMB, OTH)

RTD1LOC :=

WDG

RTD1 TYPE (PT100, NI100, NI120, CU10)

RTD1TY

:=

PT100

RTD1 TRIP LEVEL (OFF, 1° to 250°C)

TRTMP1

:=

140

RTD1 WARN LEVEL (OFF, 1° to 250°C)

ALTMP1

:=

130


RTD2LOC :=

WDG


RTD2TY

:=

PT100


TRTMP2

:=

140


ALTMP2

:=

130


RTD3LOC :=

WDG


RTD3TY

:=

PT100


TRTMP3

:=

140


ALTMP3

:=

130


RTD7LOC :=

BRG


RTD7TY

:=

PT100


TRTMP7

:=

100


ALTMP7

:=

90


RTD8LOC :=

BRG


RTD8TY

:=

PT100


TRTMP8

:=

100


ALTMP8

:=

90

WIND TRIP VOTING (Y, N)

EWDGV

:=

Y

BEAR TRIP VOTING (Y, N)

EBRGV

:=

Y

EBRGV: Because the SR 269+ does not have an option for specifying bearing RTDs or voting for them, follow the same pattern as the stator winding RTDs.


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Analog Output Existing Relay Data Relay type: GE Multilin SR 269+ Parameter: motor load as a percent of full load Scale: 4 to 20 mA Motor load full scale: 100 percent

Your SEL-710 Relay Settings AOx01 ANALOG QTY (OFF, 1 analog quantity)

AOx01AQ

:=

MLOAD

AOx01 TYPE (I, V)

AOx01TYP :=

I

AOx01 AQTY LOW (–2147483647 to +2147483647)

AOx01AQL :=

0.000

AOx01 AQTY HI (–2147483647 to +2147483647)

AOx01AQH :=

1.000

AOx01 LO OUT VAL (–20.480 to +20.480 mA)

AOx01L

:=

4.000

AOx01 HI OUT VAL (–20.480 to +20.480 mA)

AOx01H

:=

20.000

AOx01AQ: Select the MLOAD analog quantity from the table in Appendix J of the SEL-710 Instruction Manual. This gives the motor load in per unit of FLA. AOx01TYP: You need a current-based analog output. AOx01AQL: The lower end of the range is 0.000 pu. AOx01AQH: The upper end of the range is 1.000 pu. AOx01L: The lower end of the output current range is 4.000 mA. AOx01H: The upper end of the output current range is 20.000 mA.

Contactor Trip, Alarm, and Output Logic for the SEL-710 Existing Relay Data Relay type: GE Multilin SR 269+ Relay alarm latch code: 1 VALUE

TRIP

ALARM

AUX. 1

AUX. 2

1

Latched

Unlatched

Unlatched

Latched

2 or 3

Latched

Latched

Unlatched

Latched

4 or 5

Latched

Unlatched

Latched

Latched

6 or 7

Latched

Latched

Latched

Latched

(Latched = manual reset; unlatched = automatic reset)


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Relay fail-safe code: 1 VALUE

TRIP

ALARM

AUX. 1

AUX. 2

1

FS

NFS

NFS

FS

2

NFS

FS

NFS

FS

3

FS

FS

NFS

FS

4

NFS

NFS

FS

FS

5

FS

NFS

FS

FS

6

NFS

FS

FS

FS

7

FS

FS

FS

FS

8

NFS

NFS

NFS

FS

(FS = fail-safe; NFS = nonfail-safe)

Overload: trip Unbalance: trip Rapid trip: trip Stator RTD: trip RTD: trip Acceleration: trip Inhibit lockouts: trip Single phase: trip Overload warning: alarm Ground fault: alarm Unbalance: alarm Stator RTD: alarm Stator RTD high: no RTD: alarm RTD high: no No sensor: alarm Meter communications: alarm Self-test fail: alarm


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Your SEL-710 Relay Settings TRIP EQUATION (SELOGIC® control equation)

TR

:=

49T OR 50N1T OR JAMTRIP OR 46UBT OR BRGTRIP OR WDGTRIP OR SMTRIP

UNLATCH TRIP EQN (SELOGIC control equation)

ULTRIP

OUT101 FAIL-SAFE (Y, N)

OUT101FS :=

N

OUT101

HALARM OR SALARM OR 50P2P OR

:=

:=

TRGTR

50N2P OR 46UBA OR BRGALRM OR WDGALRM OR RTDFLT

OUT103 FAIL-SAFE (Y, N)

OUT103FS :=

Y

OUT103

TRIP

:=

TR: The inhibit lockout functions are included in the trip logic by default and do not need to be included in the TR equation, as shown in the following trip logic from the SEL-710 Instruction Manual.

ULTRIP: Relay Word bit TRGTR asserts when the {TARGET RESET} pushbutton on the front panel is manually pressed or the command is issued remotely via supervisory control and data acquisition (SCADA).


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Industrial Motor Solutions SEL 710

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