Power Systems The shape of the disc of an induction disc relay is spiral. none of these. circular. elliptical. spiral. none of these. circular. elliptical. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 175, 125 100, 200 200, 100 150, 150 175, 125 100, 200 200, 100 150, 150 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The time taken by the turbine to fall to 0 rpm speed from 3000 rpm is called damping time. settling time. stopping time. coasting time. damping time. settling time. stopping time. coasting time. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the methods of improving transient stability? All of these Dynamic breaking Fast acting governing system Fast acting excitation control All of these Dynamic breaking Fast acting governing system Fast acting excitation control ANSWER DOWNLOAD EXAMIANS APP
Power Systems As the frequency of the system is increased, the charging MVAR None of these decreases remains unaffected increases None of these decreases remains unaffected increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to relieve water hammer pressure in the penstock. produce surge in the pipeline. supply water at constant pressure. none of above. relieve water hammer pressure in the penstock. produce surge in the pipeline. supply water at constant pressure. none of above. ANSWER DOWNLOAD EXAMIANS APP
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