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 12.5 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² 225 electrical degrees/s² 12.5 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems Asynchronous tie line is a AC transmission line None of these either 1 or 2 DC transmission line AC transmission line None of these either 1 or 2 DC transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pelton wheel turbine is a low head turbine. high head turbine. none of above. medium head turbine. low head turbine. high head turbine. none of above. medium head turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? Instantaneous and RMS value RMS and RMS value RMS and Instantaneous value any of the above Instantaneous and RMS value RMS and RMS value RMS and Instantaneous value any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mercury is choice with steam in binary vapor cycle because higher saturation temperature than other fluids. higher critical temperature and pressure. all of above. relative low vaporization pressure. higher saturation temperature than other fluids. higher critical temperature and pressure. all of above. relative low vaporization pressure. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 Km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150 VA the resistance of the line is 6.06 Ω / phase. 2.26 Ω / phase. 8.06 Ω / phase. 4.65 Ω / phase. 6.06 Ω / phase. 2.26 Ω / phase. 8.06 Ω / phase. 4.65 Ω / phase. ANSWER DOWNLOAD EXAMIANS APP
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