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Surge protection for neutral grounding devices

Surge protection for neutral grounding devices

Surge protection for neutral grounding devices

(OP)
In the IEEE Guide for the Application of Metal Oxide Surge Arresters (C62.22) and other places, it is stated that a surge arrester may be needed across a neutral grounding device.  Unfortunately, these statements don't include any method of determining the need for an extra surge arrester (assuming surge arresters are already located sufficiently close to the transformer's bushings).

Is anyone aware of any papers or application guidelines for this situation?

RE: Surge protection for neutral grounding devices

Protection of neutral gronding devices are done based on
Max power frequency voltage that will come on it and max surge voltage onit.Normally 110 % of first item and 80% of second parameter is taken while selecting any of the standard surge arresters,
On technical papers :I remember some years back there was aIEEE paper listing up all papers published on this subject

RE: Surge protection for neutral grounding devices

Suggestion: References:
1. D.G. Fink and H.W. Beaty, "Standard Handbook for Electrical Engineers," 14th Edition, 2000, Section 17.1.12 "Surge Protection," and Section 27 "Lightning and Overvoltage Protection"
2. ANSI/IEEE Std 242-1986 "An American National Standard IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems," (Buff Book), Section 9.3.16 "Lightning and Surge Protection"

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