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Oil circuit breaker is mainly used in _____________(a) Synchronous machine(b) Induction machine(c) DC machine(d) TransformerThe question was posed to me in a job interview.Asked question is from Electrical Drive Systems in section Electrical Drive Systems and Components of Electric Drives

Answer»

Correct CHOICE is (d) TRANSFORMER

The BEST I can explain: Oil circuit breaker is mainly used in TRANSFORMERS. The oil ACTS a coolant for the transformer. When a fault occurs in the transformer oil decomposes in the gases.



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