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How many immobile contacts are there in a double-break oil circuit breaker?
Question

How many immobile contacts are there in a double-break oil circuit breaker?

A.

Eight

B.

Two

C.

One

D.

Four

Correct option is B

The oil used in the oil circuit breaker will absorb arc energy while decomposing. In a double-break bulk oil circuit breaker, there are two fixed (immobile) contacts that are bridged by one moving contact.

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