Power Systems The ground capacitance existing between transmission line and ground is 4µF. Find the inductive reactance of the peterson coil for compensation of arcing grounds? 625.35 Ω 265.25 Ω 855.26 Ω 0.844 Ω 625.35 Ω 265.25 Ω 855.26 Ω 0.844 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading (SIL) is represented by Vl²*√(C/L) Vl²/Zs both 1 and 2 Vph²/Zs Vl²*√(C/L) Vl²/Zs both 1 and 2 Vph²/Zs ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 15% 11.8% 88.2% 85% 15% 11.8% 88.2% 85% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pumped storage plant is a both 1 and 2 None of these peak load plant base load plant both 1 and 2 None of these peak load plant base load plant 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 The value of off diagonal elements is which is connected between bus i and bus j with negative sign sum of admittances connected at bus j which is connected between bus i and bus j with positive sign sum of admittances connected at bus i which is connected between bus i and bus j with negative sign sum of admittances connected at bus j which is connected between bus i and bus j with positive sign sum of admittances connected at bus i ANSWER DOWNLOAD EXAMIANS APP
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