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Topic

General Applications · Question 1

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B. Surge protection

A metal-oxide surge arrester is being selected for a 13.2 kV (line-to-line), solidly grounded, four-wire multigrounded-neutral distribution system that may operate continuously at 105% of nominal voltage. Standard arrester MCOV values are 2.55, 5.1, 7.65, 8.4, 10.2, 12.7, 15.3, 19.5, 22, and 24.4 kV. The minimum standard MCOV suitable for this application is:

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