NG TR(E) 409
Technical Reports - Over-Voltage Protection in Substations Using Surge Arresters
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| Organization: | NG |
| Publication Date: | 1 September 2006 |
| Status: | active |
| Page Count: | 27 |
scope:
refePURPOSE AND SCOPE
This Technical Report (TR) describes the over-voltage protection employed on the National Grid Transmission (Electricity) system and in particular, the use of metal oxide surge arresters. Surge arresters can provide essential protection of substation equipment from lightning or switching overvoltages, and also improve circuit availability and reduce operational complexity. This report justifies the move from co-ordinating gaps to surge arrester protection of key substation assets. This also supports the policy statement PS(T)021 'Surge arresters for Substations' and Technical Guidance Note TGN(T) 27 on the application of surge arresters.
Document History
NG TR(E) 409
September 1, 2006
Technical Reports - Over-Voltage Protection in Substations Using Surge Arresters
refePURPOSE AND SCOPE
This Technical Report (TR) describes the over-voltage protection employed on the National Grid Transmission (Electricity) system and in particular, the use of metal oxide surge...