204. Air blast circuit breakers are preferred for
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205. The power factor of the arc in a circuit breaker is
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206. For a 400 kV system, the capacity of lightning arrester should be
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207. A high speed circuit breaker can complete its operation in
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208. Which of following are the desirable qualities of protective relays?
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209. Basic quantity measured in a distance relay is
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210. Drop out to cutoff ratio for most relays is of the order of
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