Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 14 %. 56 %. None of above 28 %. 14 %. 56 %. None of above 28 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of higher transmission voltage is/are All of these Area of cross section and volume of the conductor is reduced Power transfer capability of the transmission line is increased Transmission line losses are reduced All of these Area of cross section and volume of the conductor is reduced Power transfer capability of the transmission line is increased Transmission line losses are reduced ANSWER DOWNLOAD EXAMIANS APP
Power Systems NTPC (National Thermal Power Cooperation) has its only thermal power generating unit in West Bengal at Katwa. Bakreshwar. Durgapur. Farakka. Katwa. Bakreshwar. Durgapur. Farakka. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The advantage of hydro electric power station over thermal power station is the operation cost of hydro electric power station is low the initial cost of hydro electric power station is low hydro electric power station can supply the power throughout the year hydro electric station can be constructed at the place where the energy is required the operation cost of hydro electric power station is low the initial cost of hydro electric power station is low hydro electric power station can supply the power throughout the year hydro electric station can be constructed at the place where the energy is required ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station has a maximum demand of 100 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 80 MW 15 MW 20 MW 10 MW 80 MW 15 MW 20 MW 10 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 2.63 msec 4.68 msec 9.68 1.47 msec 2.63 msec 4.68 msec 9.68 1.47 msec ANSWER DOWNLOAD EXAMIANS APP
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