Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? air break circuit breaker isolator rewireable fuse oil circuit breaker air break circuit breaker isolator rewireable fuse oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear series reactors should have high resistance high impedance low impedance low resistance high resistance high impedance low impedance low resistance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear ________ relay is preferred for phase fault on short transmission line. Induction type None of these Impedance Reactance Induction type None of these Impedance Reactance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always None of these In phase with the arc current lagging the arc current by 90° leading the arc current by 90° None of these In phase with the arc current lagging the arc current by 90° leading the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The operating time of a circuit breaker is 0.002 sec 0.05 sec 0.001 sec 0.2 sec 0.002 sec 0.05 sec 0.001 sec 0.2 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 0.5 sec 0.1 sec 100 micro-second 50 milli-second 0.5 sec 0.1 sec 100 micro-second 50 milli-second ANSWER DOWNLOAD EXAMIANS APP
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