36KV VCB

Top Interview Questions and Answers on 33KV Circuit Breaker

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What type of circuit breaker is generally used for the 36KV class ?Ans: The 36KV class circuit breaker is normally an outdoor type Vacuum Circuit Breaker (VCB). Why is VCB Preferred in 33KV Outdoor Systems Over SF6 Circuit Breakers?Ans: VCBs are more economical for 33KV systems compared to SF6 circuit breakers due to simpler construction … Read more

Zero Current Crossing Method in A Circuit Breaker

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This zero current crossing method is only applicable to alternating current circuit breaker. We all know that an alternating current naturally passes through zero at regular intervals (every half-cycle of the AC waveform). This method safely interrupts the alternating current at the natural zero-crossing of its waveform. Working Principle of a CB based on Zero … Read more