Switch Gear A circuit breaker is rated as 1500 A, 1000 MVA, 33 kv, 3-second , 3- phase oil circuit breaker. The rated normal current is None of these 1500/√3 A 1500 A 750 A None of these 1500/√3 A 1500 A 750 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time of closing the cycle, in modern circuit breakers is 0.003 sec 0.01 sec 0.10 sec 0.001 sec 0.003 sec 0.01 sec 0.10 sec 0.001 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rate of rise of restriking voltage depends on the inductance of the system only both inductance and capacitance of the system the type of circuit breaker the capacitance of the system only the inductance of the system only both inductance and capacitance of the system the type of circuit breaker the capacitance of the system only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called surge voltage operating voltage arc voltage recovery voltage surge voltage operating voltage arc voltage recovery voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following circuit breakers is prefered for EHT applications ? Sf6 CB bulk oil circuit breaker air break circuit breaker low oil circuit breaker Sf6 CB bulk oil circuit breaker air break circuit breaker low oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The operating time of a circuit breaker is 0.002 sec 0.001 sec 0.2 sec 0.05 sec 0.002 sec 0.001 sec 0.2 sec 0.05 sec ANSWER DOWNLOAD EXAMIANS APP
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