Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be higher than that of if fault occurs away from the relay constant for all distances Lower than that of if fault occurs away from the relay None of these higher than that of if fault occurs away from the relay constant for all distances Lower than that of if fault occurs away from the relay None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the length of the arc in a circuit breaker increases, its resistance increases remains same None of these decreases increases remains same None of these decreases ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 100 micro-second 0.5 sec 0.1 sec 50 milli-second 100 micro-second 0.5 sec 0.1 sec 50 milli-second ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is vaccum circuit breaker air-blast circuit breaker all are correct oil circuit breaker vaccum circuit breaker air-blast circuit breaker all are correct oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a single bus-bar system there will be complete shut down when fault occurs on the bus itself fault occurs on neutral line fault occurs with respect to earthing two or more faults occur simultaneously fault occurs on the bus itself fault occurs on neutral line fault occurs with respect to earthing two or more faults occur simultaneously ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to None of these 2.55 × symmetrical breaking capacity √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these 2.55 × symmetrical breaking capacity √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS