Switch Gear Which of the following circuit breakers is prefered for EHT applications ? Sf6 CB air break circuit breaker bulk oil circuit breaker low oil circuit breaker Sf6 CB air break circuit breaker bulk oil circuit breaker low oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fault that imposes severest duty on the circuit breaker is all three lines short-circuited line to ground fault two lines to ground fault line to line fault all three lines short-circuited line to ground fault two lines to ground fault line to line fault ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to √2 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? bulk oil circuit breaker low oil circuit breaker air break circuit breaker sf 6 circuit breaker bulk oil circuit breaker low oil circuit breaker air break circuit breaker sf 6 circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The advantage of HRC fuse is that it All of these does not deteriorate with age is quite cheap has high speed of operation All of these does not deteriorate with age is quite cheap has high speed of operation ANSWER DOWNLOAD EXAMIANS APP
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