Switch Gear An overcurrent relay having current settling of 125% is connected to a supply circuit through a current transformer of 400/5 A. The pick-up current is 6.25 A 25 A 3.125 A 12.5 A 6.25 A 25 A 3.125 A 12.5 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Current chopping mainly occurs in air-blast circuit breaker sf 6 circuit breaker vaccum circuit breaker oil circuit breaker air-blast circuit breaker sf 6 circuit breaker vaccum circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Insulation resistance of high voltage circuit breakers is more than 1 mega ohms 100 mega ohms 500 mega ohms 10 mega ohms 1 mega ohms 100 mega ohms 500 mega ohms 10 mega ohms ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called arc voltage recovery voltage surge voltage operating voltage arc voltage recovery voltage surge voltage operating voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fault that imposes severest duty on the circuit breaker is line to line fault 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 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker must perform the duty of All of these being closed on to a fault opening the faulty circuit and breaking the fault current carrying fault current for a short time All of these being closed on to a fault opening the faulty circuit and breaking the fault current carrying fault current for a short time ANSWER DOWNLOAD EXAMIANS APP
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