Power Systems A 200 MW capacity generator has a speed regulation of 4% for a frequency drop of 0.05 Hz. Find the power input supplied by the turbine for maintaining constant frequency? 15 MW 10 MW 5 MW 20 MW 15 MW 10 MW 5 MW 20 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The time taken by the turbine to fall to 0 rpm speed from 3000 rpm is called coasting time. settling time. damping time. stopping time. coasting time. settling time. damping time. stopping time. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For large plants of capacity for more than 15 MW, what type of cooling is used Air. Water. Hydrogen. Liquid. Air. Water. Hydrogen. Liquid. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following decides the insulation level of 400 kV, EHV line? skin effect lighting voltage switching over voltage radio interference skin effect lighting voltage switching over voltage radio interference ANSWER DOWNLOAD EXAMIANS APP
Power Systems For variable heads of near about but less than 30 meters, which type of turbine is used in hydro power station? Kaplan None of these Francis Pelton Kaplan None of these Francis Pelton ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the rated receiving end voltage is 33 kV, then what are the limits for safe operation of equipments? any voltage above 33 kV 25 to 35 kV 33 to 50 kV 31.35 to 34.65 kV any voltage above 33 kV 25 to 35 kV 33 to 50 kV 31.35 to 34.65 kV ANSWER DOWNLOAD EXAMIANS APP
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