2796827

NG TS 3.06.08 [ Inactive ]

National Grid Technical Specifications - Circuit Breaker Fail Protection

standard by National Grid , 03/01/1999

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This Specification describes the functional and performance requirements for circuit breaker fail protection for 400 kV and 275 kV circuit breakers on the NGC System.

It does not cover the requirements for back tripping systems associated with busbar protection or mesh corner protection which are specified in NGTS 3.6.3 and NGTS 3.6.14 respectively.

The requirements for the trip relay resetting scheme are specified in NGTS 3.6.15

 

Product Details

Edition:
3
Published:
03/01/1999
Number of Pages:
17
File Size:
1 file , 160 KB