Switch Gear A circuit breaker must perform the duty of carrying fault current for a short time being closed on to a fault All of these opening the faulty circuit and breaking the fault current carrying fault current for a short time being closed on to a fault All of these opening the faulty circuit and breaking the fault current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Breaking capacity of a circuit breaker is usually expressed in terms of MVA Mw volts amperes MVA Mw volts amperes ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Insulation resistance of high voltage circuit breakers is more than 1 mega ohms 10 mega ohms 100 mega ohms 500 mega ohms 1 mega ohms 10 mega ohms 100 mega ohms 500 mega ohms ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A differential relay measures the vector difference between two currents two voltages None of these two or more similar electrical quantities two currents two voltages None of these two or more similar electrical quantities ANSWER DOWNLOAD EXAMIANS APP
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 4 8 2 6 4 8 2 6 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to protect the line protect the appliance prevent excessive currents None of these open the circuit protect the line protect the appliance prevent excessive currents None of these open the circuit ANSWER DOWNLOAD EXAMIANS APP
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