switchgear protection Mcq

A.C. network analyzer is used to solve problems of ?

A. load flow  B. load flow and short-circuit  C. load flow and stability  D. load flow, short-circuit, and stability  Answer: D. load flow, short-circuit, and stability  Explanation: AC Network Analyzer: AC network analyzer is a …

.......... relays are used for phase faults on long line?

A. impedance  B. Reactance  C. Either of the above  D. None of the above  Answer:  D. None of the above  Explanation: Reactance relay is suitable for the protection of a short transmission line because its operation is independen…

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