Switch Gear Interruption of large currents by relay requires wide separation of the opened contacts all of these arc suppressing blow out coils high speed opening of contacts wide separation of the opened contacts all of these arc suppressing blow out coils high speed opening of contacts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear protection of fuses is generally not used beyond 50 A 100 A 20 A 200 A 50 A 100 A 20 A 200 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear HRC fuses provide best protection against open circuits short circuits overload reverse current open circuits short circuits overload reverse current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Distance relays are generally none of these impedance relays reactance relays split-phase relays none of these impedance relays reactance relays split-phase relays ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An isolator is installed to operate the relay of circuit breaker always independent of the position of circuit breaker as a substitute for circuit breaker generally on both sides of a circuit breaker to operate the relay of circuit breaker always independent of the position of circuit breaker as a substitute for circuit breaker generally on both sides of a circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 0.1 sec 100 micro-second 0.5 sec 50 milli-second 0.1 sec 100 micro-second 0.5 sec 50 milli-second ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS