Switch Gear An overcurrent relay having current settling of 125% is connected to a supply circuit through a current transformer of 400/5 A. The pick-up current is 25 A 3.125 A 6.25 A 12.5 A 25 A 3.125 A 6.25 A 12.5 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be constant for all distances Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay None of these constant for all distances Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear ________ relay is preferred for phase fault on short transmission line. Induction type Reactance Impedance None of these Induction type Reactance Impedance None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of copper tungsten alloy aluminium alloy electrolytic copper porcelain copper tungsten alloy aluminium alloy electrolytic copper porcelain ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to protect the line protect the appliance None of these open the circuit prevent excessive currents protect the line protect the appliance None of these open the circuit prevent excessive currents ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a single bus-bar system there will be complete shut down when 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 fault occurs on the bus itself fault occurs on neutral line ANSWER DOWNLOAD EXAMIANS APP
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