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 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF? 160 Ω 800 Ω 200 Ω 400 Ω 160 Ω 800 Ω 200 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Peterson coil is used in case of transmission line for reduce ferranti effect increase the voltage level compensation of arcing grounds improve power factor reduce ferranti effect increase the voltage level compensation of arcing grounds improve power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the conductor diameter decreases, inductance of the line, remains unaffected increases decreases None of these remains unaffected increases decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems For head and low discharge the water turbine used Francis turbine. Kaplan wheel. propeller turbine. Pelton wheel. Francis turbine. Kaplan wheel. propeller turbine. Pelton wheel. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most commonly used material for insulators of overhead lines is mica porcelain glass PVC mica porcelain glass PVC ANSWER DOWNLOAD EXAMIANS APP
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