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33KV Relay Site Test Report

This document summarizes test results for a 33kV auxiliary relay for National Grid SA. It describes [1] general data about the relay, [2] results of mechanical and visual inspections, and [3] electrical test results including function tests of contacts, pick-up and drop-off tests of voltage and current, operating time tests, and measurements of relay burden during operation. The tests were performed by Alstom Grid and witnessed by a consultant and National Grid SA representative.

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arun
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267 views2 pages

33KV Relay Site Test Report

This document summarizes test results for a 33kV auxiliary relay for National Grid SA. It describes [1] general data about the relay, [2] results of mechanical and visual inspections, and [3] electrical test results including function tests of contacts, pick-up and drop-off tests of voltage and current, operating time tests, and measurements of relay burden during operation. The tests were performed by Alstom Grid and witnessed by a consultant and National Grid SA representative.

Uploaded by

arun
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLS, PDF, TXT or read online on Scribd
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SITE TEST REPORT

Customer National Grid SA Description: 33KV SWGR AR221 AUX RELAY


Contractor Alstom Grid
Contract No. 11031064 / 00 Section : Page/Folio : 1 / 1
Substation Chapter : Circuit ID :

1. GENERAL DATA AND INFORMATION


Make : No.Of Contacts :
Serial No :
Type : AR221
Aux Voltage :

2. MECHANICAL CHECK AND VISUAL INSPECTION (tick if verified)


Item Description
1 Inspect for physical damage / defects. qYes qN/A
2 Verify connections as per approved drawing. qYes qN/A
3 Check tightness of all connections. qYes qN/A

3. ELECTRICAL TESTS
a.FUNTION TEST:
ITEM DESCRIPTION CHECKED
1 All Contacts checked OK
2 All output contacts resistance measured OK

b) PICK-UP AND DROP OFF TEST:


Operate coil Pick up Value Reset Coil Operate Value
Coil (coil point : ) (Coil Point: )
No. Volts(V) Current( mA ) Volts(V) Current( mA )

Operating range:
Minimum Operating Voltage 60 % (66.0 V) of lower Rated Voltage of 110Vdc
(See manual page 4)

Tested by: Alstom Grid Witnessed by: Consultant Witnessed by: National Grid SA
Date : Date : Date :
Name & Signature Name & Signature Name & Signature

427508900.xls Rev-A
SITE TEST REPORT
Customer National Grid SA Description: 33KV SWGR AR221 AUX RELAY
Contractor Alstom Grid
Contract No. 11031064 / 00 Section : Page/Folio : 1 / 1
Substation Chapter : Circuit ID :

OPERATING TIME TEST (AT 100% OF RATED


C)
VOLTAGE).
Operate Time
Coil Applied Voltage Contacts
(mSec)

Operate Coil

Reset Coil

D) RELAY BURDEN DURING OPERATION

Coil No. Voltage(V) Current(mA) Watts


Operate Coil
Reset Coil

Operate coil burden Limit


Reset coil burden Limit

TEST EQUIPMENT USED:-

Tested by: Alstom Grid Witnessed by: Consultant Witnessed by: National Grid SA
Date : Date : Date :
Name & Signature Name & Signature Name & Signature

427508900.xls Rev-A

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