7/30/2019 Test Report REF CT and OC E03_NEW

http://slidepdf.com/reader/full/test-report-ref-ct-and-oc-e03new 1/2

SITE TEST REPORT

Replacement of 132/11kV Transformers, Transformer Protection Panels and 110 V Batteries at W13 Substation

(CONTRACT No. N6399)

Consultant ENERGO Name of the Equipment 40MVA Power Transformer-T201Name of the Feeder E03 Transformer Feeder 

MainContractor 

Manufacturer ABB

Date 17.02.2013 Page 1 –2

CT Secondary Injection for HV REF Core

Transformer HV REF protection Core:-

In old system the existing T1 CT core1 common for HV REF and O/C&E/F protection

 ABB installed new Ring type CT for REF through power cable under GIS basement

Secondary Current injected from Sverkar 650 to each phase of Ring CT directly

Test-1:- R-500mA, Y-500mA, B-500mA

Over Current and Earth fault CTcore

Tested by Witnessed by Approved byABB Transmission &

DistributionENERGO

Date 17.02.20132 17.02.2013Name R.Krishna Murthy Mohammad RasheedSignature

CT Details Phase

Injected

Sec

Current

(mA)

Secondary Current [mA] – Monitored at:

SWGR E03+S E03+R1, TB XA=

132kV Relay Panel

Test plug F64HV

X64HV(RTXP18)

T3

1S1-1S2

Tr.REF

300/1A

Injection from

Line CT S1,S2

R Y B N R Y B N R Y B N

575 577 579 581 21 22 23 24 3A 5A 7A 9A

R 508 506 0 0 508 512 0 0 514 504 0 0 502

Y 508 0 506 0 507 0 506 0 506 0 504 0 509

B 505 0 0 504 504 0 0 503 506 0 0 504 504

Secondary Current [mA] – Monitored at:

F64HV

(RET615)

(TB X120)

F64HV

Display

(A)

Stabilizing

Resistor 

RSHV

Metrosil

RSMV

13 14 A82 A83 A82 A85

508 510 158 503 503 0 0

507 508 156 510 510 0 0

503 503 155.5 511 511 0 0

7/30/2019 Test Report REF CT and OC E03_NEW

http://slidepdf.com/reader/full/test-report-ref-ct-and-oc-e03new 2/2

SITE TEST REPORT

Replacement of 132/11kV Transformers, Transformer Protection Panels and 110 V Batteries at W13 Substation

(CONTRACT No. N6399)

Consultant ENERGO Name of the Equipment 40MVA Power Transformer-T201Name of the Feeder E03 Transformer Feeder 

MainContractor 

Manufacturer ABB

Date 17.02.2013 Page 2 –2

Test-:- R-500mA, Y-500mA, B-500mA

Remarks:-

• Single Point Earthing confirmed before starting of current injection

Tested by Witnessed by Approved byABB Transmission &

DistributionENERGO

Date 17.02.20132 17.02.2013Name R.Krishna Murthy Mohammad RasheedSignature

CT Details Phase

Injected

Sec

Current

(mA)

Secondary Current [mA] – Monitored at:

SWGR E03+S E03+R1, TB XC=

132kV Relay Panel

X51/51NHV(RTXP18)

T1-CORE-2

1S1-1S2

O/C,E/F

300/1A

Injection from R Y B N R Y B N R Y B N

502 505 508 514 01 02 03 04 3A 5A 7A 9A

R 502 502 0 0 504 503 0 0 499 504 0 0 499

Y 502 0 503 0 503 0 513 0 510 0 510 0 508

B 501 0 0 501 501 0 0 505 505 0 0 498 501

Secondary Current [mA] – Monitored at:F51/51NHV-TB:X120 F51/51NHV Display

R Y B N R Y B N

504 0 0 502 155 0 0 155

0 509 0 510 0 158 0 158

0 0 500 499 0 0 155 155