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 A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 400 Ω 800 Ω 200 Ω 0 Ω 400 Ω 800 Ω 200 Ω 0 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems High capacity generators and motors are of star connected with grounding network delta connected network star connected network any of the above star connected with grounding network delta connected network star connected network any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems The daily energy produced in thermal power station is 720 MWh at a load factor of 0.6. What is the maximum demand of the station? 720 MW 72 MW 50 MW 30 MW 720 MW 72 MW 50 MW 30 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is an impulse turbine None of above. Francis turbine. Pelton turbine. Kaplan turbine. None of above. Francis turbine. Pelton turbine. Kaplan turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The term self GMD is used to calculate resistance inductance capacitance both 1 and 2 resistance inductance capacitance both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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