Power Systems If the time of operation of a relay for unity TMS is 10 sec. the time of operation of 0.5 TMS will be _______________ secs. 3. 20. 7. 5. 3. 20. 7. 5. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Bundled conductors in EHV transmission lines increase inductance decrease capacitance increase capacitance decrease inducatance increase inductance decrease capacitance increase capacitance decrease inducatance ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where air circuit breakers are used? Up to 66 kV. Up to 33 kV. Up to 11 kV. Up to 12 kV. Up to 66 kV. Up to 33 kV. Up to 11 kV. Up to 12 kV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 225 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 125 electrical degrees/s² 225 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 125 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems One million cubic meters of water is stored in a reservoir feeding a water turbine. The density of water is 993 kg/m³. If the centre of mass of water is 50 meters above the turbine and losses are negligible, the energy produced by that volume of water is 135.3 MWhr 120 MWhr 140 MWhr 130.2 MWhr 135.3 MWhr 120 MWhr 140 MWhr 130.2 MWhr ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the effects of corona power loss decreases charging current increases All of these interference decreases power loss decreases charging current increases All of these interference decreases ANSWER DOWNLOAD EXAMIANS APP
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