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 750 A 1500/√3 A None of these 1500 A 750 A 1500/√3 A None of these 1500 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. resistors None of these capacitors reactors resistors None of these capacitors reactors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A.C. network analyzer is used to solve problems of Load flow Load flow and short-circuit Load flow, short-circuit and stability Load flow and stability Load flow Load flow and short-circuit Load flow, short-circuit and stability Load flow and stability ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always In phase with the arc current None of these lagging the arc current by 90° leading the arc current by 90° In phase with the arc current None of these lagging the arc current by 90° leading the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the length of the arc in a circuit breaker increases, its resistance decreases None of these remains same increases decreases None of these remains same increases ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Most of the relays on service on electric power system are thermal relays electro-mechanical relays None of these electronic relays thermal relays electro-mechanical relays None of these electronic relays ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS