Functional Testing of G60-A Test Results Engro

8/16/2019 Functional Testing of G60-A Test Results Engro

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Test Report of Generator Protection Relay (G60-A) for

Engro Powergen Project

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Customer Engro Powergen

Relay Type Numerical Generator Management Relay

Panel Identification Generator Protection Panel GPP

Relay Identification Generator Protection

Relay Make GENERAL ELECTRIC

Model G60-G01-HCH-F8F-H67-M8F-P6D-U6D-W6C

Serial No. AALC07000443

Firmware Revision 5.4

Auxiliary Voltage 125V DC

Test Starting Date 16-04-2015

Test Set Used Freja 300

Tested ByMr.Mubasher Ahmed, Testing/Commissioning Engineer.Contact Number: +92 333 408 30 86

Witnessed By Mr.Ijlal, Engro Powergen

General Data

Generator Genout Voltage 11.0 kV

Connection Type WYE

CT Ratio Genout Side (CT-6) 8000/1

CT Ratio Neutral Side (CT-1) 8000/1

VT Ratio (VT-G) 13.8kV/100V

Aux. Neutral VT(NET) 13.8kV/200V

Testing Procedure

1.

Verify that the relay rear connection/wiring is according to referred drawings.2. Power up relay at its rated voltage mentioned on face plate of relay.

3.

Verify that “ In Service” green LED on face plate is lit up.

4. Verify that different protection units inside the relay are configured on desired

settings.

5.

Isolate the relay from field side wiring as per referred drawing.

6. Inject different voltage & current values (according to relay trip settings) to

relay and check its functionality and behavior.

7.

Note down all test results in tables given below.


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1. Measuring / Metering Accuracy

SourcePhase

InvolvedRatio

Applied Analog

Signals (Secondary)

Measured Value

(Primary)

Source 2,Line Side Ia1 8000/1 1.00 0A 7.994-0

kA

Source 2, Line Side Ia2 8000/1 1.00 240A 8.002-119

kA

Source 2, Line Side Ia3 8000/1 1.00 120A 7.994-240

kA

Source 1, Neutral Side Ib1 8000/1 1.00 0A 7.995-0

kA


kA


kA

Main PTs (VTG-P) V1 13.8kV/100V (57.70)100V 13.796-330

kV


kV


kV

NET VT 13.8kV/220V 1000 V 6.27-0

kV

2.

Stator Differential Protection (87G)

Pickup = 0.083 P.U

Slope 1 = 10 %

Break 1 = 1.00 P.U

Break 2 = 3.07 P.U

Slope 2 = 60 %

2.1 Pickup Accuracy

Sr.I Applied at Gen out Side( (Amp) I Applied at Neutral Side (Amp)

StatusIa1 Φ Ia2 Φ Ia3 Φ Ib1 Φ Ib2 Φ Ib3 Φ

1 1.00 0 1.00 240 1.00 120 1.00 0 1.00 240 1.00 120 Stable

2 0.90 0 0.90 240 0.90 120 0.810 0 0.810 240 0.810 120 No Pickup

3 0.90 0 0.90 240 0.90 120 0.809 0 0.809 240 0.809 120 Pickup

4 3.50 0 3.50 240 3.50 120 1.41 0 1.41 240 1.41 120 No Pickup5 3.50 0 3.50 240 3.50 120 1.40 0 1.40 240 1.40 120 Pickup


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2.2 Operating Time Accuracy

Sr.I Applied at Genout Side( (Amp) I Applied at Neutral Side (Amp) Measured

Time

(msec)

StatusIa1 Φ Ia2 Φ Ia3 Φ Ib1 Φ Ib2 Φ Ib3 Φ

1 1.00 0 1.00 240 1.00 120 0.00 0 0.00 240 0.00 120 13.00 Trip

3. Negative Phase Sequence (Generator Unbalance Alarm 46A)

3.1 Pickup Accuracy

Inom. = 0.830 P.U.

Stage 2 Pickup = 10.00%

Time Delay = 6.0 sec

Sr.Applied Current Gen out Source 2 (Amp)

StatusIa1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 0.050 0.050 0.050 0 120 240 No Pickup

2 0.051 0.051 0.051 0 120 240 Pickup

: Phase T

OC and Stator Diff. Settings should be switched off to test this function.

4. Negative Phase Sequence ( Generator Unbalance Trip 46T)

4.1 Pickup Accuracy

Stage 1 Pickup = 10.00 %

Stage 1 K Value = 6.40

Stage 1 min. = 0.250 Sec

Stage 1 max. = 640.0 Sec

Stage 1 K Reset = 256.0 Sec

Sr.Applied Current Gen Out Source 2 (Amp) Status

Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ31 0.084 0.084 0.084 0 120 240 No Pickup

2 0.085 0.085 0.085 0 120 240 Pickup


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Sr.Applied Current Neutral Source 2 (Amp) Measured Time

( Sec )Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 1.00 1.00 1.00 0 120 240 4.434

2 1.50 1.50 1.50 0 120 240 1.994

3 2.50 2.50 2.50 0 120 240 0.733

5. Sensitive Directional Power Stage 1(32 N. Stop)

5.1 Pickup Accuracy

Directional Power RCA = 180

Stage 1 SMIN = 0.035 P.U

Stage 1 Delay = 3.0 Sec

Sr.Applied Voltage (Volts) Applied Current Source 2 (Amp)

StatusV1 V2 V3 VΦ1 VΦ2 VΦ3 Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 57.70 57.70 57.70 0 240 120 0.035 0.035 0.035 180 60 300 No

Pickup

2 57.70 57.70 57.70 0 240 120 0.036 0.036 0.036 180 60 300 Pickup


Sr.

Applied Voltage (Volts) Applied Current Source 2 (Amp) Measured

Time (mSec)

V1 V2 V3 VΦ1 VΦ2 VΦ3 Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 57.70 57.70 57.70 0 240 120 0.2 0.2 0.2 180 60 300 3.074

6. Sensitive Directional Power Stage 2 (32-2)

6.1 Pickup Accuracy

Directional Power RCA = 180

Stage 2 SMIN = -0.007

Stage 2 Delay = 0.50 Sec


StatusV1 V2 V3 VΦ1 VΦ2 VΦ3 Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 57.70 57.70 57.70 0 240 120 0.007 0.007 0.007 180 60 300 No

Pickup

2 57.70 57.70 57.70 0 240 120 0.008 0.008 0.008 180 60 300 Pickup


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Sr.

Applied Voltage (Volts) Applied Current Source 2 (Amp) Measured

Time

(mSec)V1 V2 V3 VΦ1 VΦ2 VΦ3 Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 57.70 57.70 57.70 0 240 120 0.005 0.005 0.005 180 60 300 579

7. Loss of Field Stage 1 (40):

7.1 Pickup Accuracy

Center = 44.14 ohm

Radius = 34.76 ohm


Off Set = 9.38 ohm

Sr.Applied Voltage (Volts) Applied Current Sorce 2 (Amp) Z

ohmPickup


1 20 20 20 0 240 120 0.254 0.254 0.254 90 330 210 78.74 No

2 20 20 20 0 240 120 0.255 0.255 0.255 90 330 210 78.41 Yes


Sr.

Applied Voltage (Volts) Applied Current Sorce 2 (Amp) Measured

Time

(sec)V1 V2 V3 VΦ1 VΦ2 VΦ3 Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 20 20 20 0 240 120 0.51 0.51 0.51 90 330 210 1.024

8. Loss of Field Stage 2 (40):

8.1 Pickup Accuracy

Center = 80.98 ohm

Radius = 71.60 ohm


Off Set = 9.38

Sr.Applied Voltage (Volts) Applied Current Sorce 2 (Amp) Z

ohmStatus


1 20 20 20 0 240 120 0.132 0.132 0.132 90 330 210 151.52 No

Pickup

2 20 20 20 0 240 120 0.133 0.133 0.133 90 330 210 150.38 Yes


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8.2 Operating Time Accuracy (at 36.0 ohm)

Sr.Applied Voltage (Volts) Applied Current Source 2 (Amp) Measured

Time (sec)V1 V2 V3 VΦ1 VΦ2 VΦ3 Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 20 20 20 0 240 120 0.17 0.17 0.17 90 330 210 1.034

9.

Phase Over Voltage Element (59P1):

9.1

Pickup Accuracy

Pickup = 1.200 P.U.

Time Delay = 0.50 Sec

Sr.Applied Voltage (Volts)

StatusV1 V2 V3 VΦ1 VΦ2 VΦ3

1 69.18 69.18 69.18 0 240 120 No Pickup

2 69.19 69.19 69.19 0 240 120 Pickup

9.2

Operating Time Accuracy

Sr.Applied Voltage (Volts) Measured Time

(Sec)V1 V2 V3 VΦ1 VΦ2 VΦ3

1 75.00 75.00 75.00 0 240 120 0.554

10. Under Frequency (81-1U):

10.1 Pickup Accuracy

Pickup Level = 49.00 Hz

Sr.Voltage Applied

(Volts)

Applied Frequency

(Hz)Status

1 63.50 49.01 No Pickup

2 63.50 49.00 Pickup


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11. Under Frequency (81-2U):




Sr.Voltage Applied

(Volts)

Applied Frequency

(Hz)Status

1 63.50 47.50 No Pickup

2 63.50 47.49 Pickup


Sr.Voltage Applied

(Volts)

Applied Frequency

(Hz)

Measured Time

( Sec)

1 63.50 47.00 3.10 Sec

12. Over-Frequency (81-1O):



Sr.Voltage Applied

(Volts)

Applied Frequency

(Hz)Status

1 63.50 50.98 No Pickup2 63.50 50.99 Pickup




Time Delay = 3.00Sec

Sr.Voltage Applied

(Volts)

Applied Frequency

(Hz)Status

1 63.50 52.49 No Pickup

2 63.50 52.50 Pickup


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Sr.Voltage Applied

(Volts)

Applied Frequency

(Hz)

Measured Time

( Sec)

1 63.50 53.00 3.10





Sr.Voltage Applied

(Volts)

Applied Frequency

(Hz)Status

1 63.50 52.49 No Pickup2 63.50 52.50 Pickup


Sr.Voltage Applied

(Volts)

Applied Frequency

(Hz)

Measured Time

( Sec)

1 63.50 53.00 30.10

Note: Overfrequency Stage 2 & Stage 3 has same pickups

15. Phase Under Voltage (27-U1):


Pickup = 0.90 P.U (Phase to Ground)

Curve = Definite Time




1 51.94 51.94 51.94 0 240 120 No Pickup

2 51.93 51.93 51.93 0 240 120 Pickup


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16. Phase Under Voltage (27-U2):


Pickup = 0.90 P.U (Phase to Ground)





1 40.41 40.41 40.41 0 240 120 No Pickup

2 40.40 40.40 40.40 0 240 120 Pickup


Sr.Applied Voltage (Volts) Measured Time

(Sec)V1 V2 V3 VΦ1 VΦ2 VΦ3

1 30.0 30.0 30.0 0 240 120 3.034

17. Phase Time Over Current with Voltage Restraint (51V)


Pickup Level = 0.997 P.U

Curve = IEEE Mod Inv

TD Multiplier = 2.00

Voltage Restrained = Enabled


Status


1 57.70 57.70 57.70 0 240 120 0.997 0.997 0.997 0 240 120 No

Pickup

2 57.70 57.70 57.70 0 240 120 0.998 0.998 0.998 0 240 120 Pickup

3 0.00 0.00 0.00 0 240 120 0.100 0.100 0.100 0 240 120 No

Pickup

4 0.00 0.00 0.00 0 240 120 0.101 0.101 0.101 0 240 120 Pickup


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Sr. Applied Voltage (Volts) Applied Current Source 2 (Amp) Measured

Time(Sec)V1 V2 V3 VΦ1 VΦ2 VΦ3 Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 57.70 57.70 57.70 0 240 120 2.00 2.00 2.00 0 240 120 7.574

2 50.00 50.00 50.00 0 240 120 2.00 2.00 2.00 0 240 120 6.334

3 40.00 40.00 40.00 0 240 120 2.00 2.00 2.00 0 240 120 5.044

4 30.00 30.00 30.00 0 240 120 2.00 2.00 2.00 0 240 120 4.004

5 10.00 10.00 10.00 0 240 120 2.00 2.00 2.00 0 240 120 2.294

6 0.00 0.00 0.00 0 240 120 2.00 2.00 2.00 0 240 120 1.915

18. Phase Instantaneous Time Over Current-1 for (50 P)




Sr.Applied Current Source 2 (Amp) Status

Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ31 3.077 3.077 3.077 0 240 120 No Pickup

2 3.078 3.078 3.078 0 240 120 Pickup


Sr.Applied Current Neutral Source 1 (Amp) Measured Time

( Sec )Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 4.00 4.00 4.00 0 240 120 0.041


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19. Phase Instantaneous Time Over Current-1 for (50BF)



Time Delay = 0.250 Sec (in logic)

Sr.Applied Current Source 2 (Amp) Measured Time

(mSec)Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 1.39 1.39 1.39 0 240 120 268.9

20. Over Excitation Protection Stage 1(24):


Pickup = 1.12 P.U.


T.D = 5.00

Sr.Applied Voltage (Volts) Applied Freq Status

V1 V2 V3 VΦ1 VΦ2 VΦ3 Hz

1 64.59 64.59 64.59 0 240 120 50 No Pickup

2 64.60 64.60 64.60 0 240 120 50 Pickup

20. Over Excitation Protection Stage 2(24 T):


Pickup = 1.15 pu


T.D = 3.00

Sr.Applied Voltage (Volts) Applied Freq Status

V1 V2 V3 VΦ1 VΦ2 VΦ3 Hz

1. 66.30 66.30 66.30 0 240 120 50 No Pickup

2. 66.32 66.32 66.32 0 240 120 50 Pickup


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Sr.Applied Voltage (Volts) Applied Freq Measured Time

( Sec )V1 V2 V3 VΦ1 VΦ2 VΦ3 Hz

1. 72.0 72.0 72.0 0 240 120 50 3.114

21. 3rd

Harmonic Neutral Under Voltage Protection (27TN)


Pickup Level = 0.0087 pu


Sr. Voltage Applied Neutral Source 1 Aux VT (Volts) Status1 2.00 No Pickup

2 1.90 Pickup

23. Accidental Energization(AE)


AE Armed = UV & OFFLINE

Under Voltage = 0.7 PUOver Current = 0.3 PU


Status


1 0.00 0.00 0.00 0 240 120 0.301 0.301 0.301 0 240 120 No

Pickup

2 0.00 0.00 0.00 0 240 120 0.300 0.300 0.300 0 240 120 Pickup

3 41.50 41.50 41.50 0 240 120 0.301 0.301 0.301 0 240 120 Normal

4 41.60 41.60 41.60 0 240 120 0.300 0.300 0.300 0 240 120De-

latched


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Sr.Applied Voltage (Volts) Applied Current Source 2 (Amp) Measured

Time(msec)V1 V2 V3 VΦ1 VΦ2 VΦ3 Ia1 Ia2 Ia3 IΦ1 IΦ2 IΦ3

1 0.00 0.00 0.00 0 240 120 0.80 0.80 0.80 0 240 120 23.50

hase TOC and Stator Diff.

Settings should

be switched off to test this function.

24. Ground Time Over Current-1 (51G)




Sr.Applied Ground Current (Amp) Status

Ig IΦ1

1 0.066 0 No Pickup

2 0.067 0 Pickup


Sr.Applied Ground Current (Amp) Measured Time

(Sec)Ig IΦ1

1 0.100 0 1.02


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25. Verification of LED’s

Sr. Configuration Remarks

1 Stator differential Functional

2 Phase TOC Functional3 Phase IOC Functional

4 Ground TOC Functional

5 Generator Unbalance Functional

6 Phase UV 1 Functional

7 Phase UV 2 Functional

8 Phase OV 1 Functional

9 Volts Per Hz 1 Functional

10 Volts Per Hz 2 Functional

11 Loss of excitation Functional

12 Accidental Energization Functional

13 3rd

harmonic under voltage Functional

14 Sensitive directional Power stage 1 Functional

15 Sensitive directional Power stage 2 Functional

Tested By Witnessed By

Mr.Mubasher Ahmed Mr.Ijlal

EPESOL PVT LTD Engro Powergen

Documents

Functional Testing of G60-A Test Results Engro