Switch Gear The pick-up current of a relay is 7.5 A and the fault current in relay is 30 A. Its plug-setting multiplier (P.S.M.) is 2 6 4 8 2 6 4 8 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rated secondary current of current transformer for relays is generally 30 A 10 A 20 A 5 A 30 A 10 A 20 A 5 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be None of these Lower than that of if fault occurs away from the relay constant for all distances higher than that of if fault occurs away from the relay None of these Lower than that of if fault occurs away from the relay constant for all distances higher than that of if fault occurs away from the relay ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of electrolytic copper aluminium alloy copper tungsten alloy porcelain electrolytic copper aluminium alloy copper tungsten alloy porcelain ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An efficient and a well designed protective relaying should have high speed and selectivity All of these good selectivity and reliability economy and simplicity high speed and selectivity All of these good selectivity and reliability economy and simplicity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rate of rise of restriking voltage depends on the type of circuit breaker the capacitance of the system only both inductance and capacitance of the system the inductance of the system only the type of circuit breaker the capacitance of the system only both inductance and capacitance of the system the inductance of the system only ANSWER DOWNLOAD EXAMIANS APP
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