SUBSTATION AND EQUIPMENT - Quiz

1) Which is a circuit breaker?

Power factor improvement device Protect from under voltage Controlling device Protect from over voltage

2) Which is the full form of VCB?

Variable circuit breaker Voltage control breaker Vacuum circuit breaker Vacuum control breaker

3) Which condition circuit breaker operates?

Low current Over current Under voltage Over voltage

4) Which material is used for insulating of outer body of vacuum circuit breaker?

Glass or ceramic Iron Stainless steel Ebonite

5) Which circuit breaker is used in rural area?

OCB SF6 vacuum circuit breaker ACB