Name:
NG TS 3.06.02 PDF
Published Date:
10/01/1998
Status:
[ Inactive ]
Publisher:
National Grid
This Specification describes the functional and performance requirements for the protection of 400 and 275 kV oil-immersed supergrid auto-transformers constructed in accordance with IEC 76 or equivalent. It does not cover protection of tertiary loads or tertiary connected reactive compensation equipment, or tertiary earthing transformers.
The detailed requirements for back-up protection for auto-transformers are specified in NGTS 3.6.7 Back-up Protection.
The requirements for devices for mechanical protection, including gas and oil actuated relays, and winding temperature instruments are specified in NGTS 2.3 Transformers. This Specification specifies their function within the transformer electrical protection system.
The requirements for the protection of HV and LV connections associated with the auto-transformer are specified in NGTS 3.6.14 Copperwork Protection.
The requirements for the trip relay resetting scheme are specified in NGTS 3.6.15 Trip Relays and Trip Relay Resetting.
| Edition : | 3 |
| File Size : | 1 file , 99 KB |
| Number of Pages : | 14 |
| Published : | 10/01/1998 |
