Switch Gear Interruption of large currents by relay requires high speed opening of contacts arc suppressing blow out coils wide separation of the opened contacts all of these high speed opening of contacts arc suppressing blow out coils wide separation of the opened contacts all of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The information to the circuit breaker under fault conditions is provided by relay H.R.'only All of these rewirable fuse relay H.R.'only All of these rewirable fuse ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. None of these resistors capacitors reactors None of these resistors capacitors reactors ANSWER DOWNLOAD EXAMIANS APP
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 1500 A 750 A None of these 1500/√3 A 1500 A 750 A None of these 1500/√3 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear series reactors should have high impedance low resistance high resistance low impedance high impedance low resistance high resistance low impedance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to too low contact pressure foreign matter on the contact surface slow making and breaking of load circuit contacts all of these too low contact pressure foreign matter on the contact surface slow making and breaking of load circuit contacts all of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS