Power Systems In relay coil which is used? Current transformer. Potential transformer. Instrument transformer. Power transformer. Current transformer. Potential transformer. Instrument transformer. Power transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect depends on All of these distance between the conductors relative permeability frequency All of these distance between the conductors relative permeability frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants is free from environmental problem Hydroelectric. Diesel engine. Steam. Nuclear. Hydroelectric. Diesel engine. Steam. Nuclear. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 3.75 pu 7.25 pu 4.28 pu 2.5 pu 3.75 pu 7.25 pu 4.28 pu 2.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is one - third of maximum. zero. one - third of minimum. two - thirds of maximum. one - third of maximum. zero. one - third of minimum. two - thirds of maximum. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The conversion ratio of a breeder reactor is none of above. less than unity. more than unity. equal to unity. none of above. less than unity. more than unity. equal to unity. ANSWER DOWNLOAD EXAMIANS APP
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