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 125 electrical degrees/s² 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 ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the penalty factor of a plant is unity, its incremental transmission loss is 0 1 -1 None of these 0 1 -1 None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The maximum demand of a consumer is 2 kW and corresponding daily energy consumption is 30 units. What is the corresponding load factor? 25% 75% 62.5% 50.5% 25% 75% 62.5% 50.5% ANSWER DOWNLOAD EXAMIANS APP
Power Systems More efficient plants are used as None of these peak load plant both 1 and 2 base load plant None of these peak load plant both 1 and 2 base load plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 2.4 pu 0.2 pu 3.975 pu 1.375 pu 2.4 pu 0.2 pu 3.975 pu 1.375 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems ACSR means all conductor steel reinforced Aluminium core steel reinforced Aluminium copper steel reinforced Aluminium conductor steel reinforced all conductor steel reinforced Aluminium core steel reinforced Aluminium copper steel reinforced Aluminium conductor steel reinforced ANSWER DOWNLOAD EXAMIANS APP
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