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 22.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 12.5 electrical degrees/s² 22.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 12.5 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 3000 kW 3750 kW 7500 kW 6000 kW 3000 kW 3750 kW 7500 kW 6000 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following quantities are to be calculated for generator bus? P and Q δ and V Q and δ P and V P and Q δ and V Q and δ P and V ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following statement are false In a nuclear reactor, multiplication factor is kept almost equal to one. In nuclear power plants, chain reaction is controlled by cadmium rods. Nuclear power plants are used as peak load plants only. A thermal reactor needs a moderator material. In a nuclear reactor, multiplication factor is kept almost equal to one. In nuclear power plants, chain reaction is controlled by cadmium rods. Nuclear power plants are used as peak load plants only. A thermal reactor needs a moderator material. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In order to have lower cost of power generaion the load factor should be high but diversity factor should be low the load factor and diversity factor should be low the load factor should be low but diversity factor should be high The load factor and diversity factor should be high the load factor should be high but diversity factor should be low the load factor and diversity factor should be low the load factor should be low but diversity factor should be high The load factor and diversity factor should be high ANSWER DOWNLOAD EXAMIANS APP
Power Systems The shape of the disc of an induction disc relay is circular. none of these. elliptical. spiral. circular. none of these. elliptical. spiral. ANSWER DOWNLOAD EXAMIANS APP
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