Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 100, 0.4 4, 0.4 4, 10 100, 10 100, 0.4 4, 0.4 4, 10 100, 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The load current in short circuit calculations are neglected because both 1 and 2 short circuit currents are much larger than load currents short circuit currents are greatly out of phase with load currents nether 1 nor 2 both 1 and 2 short circuit currents are much larger than load currents short circuit currents are greatly out of phase with load currents nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Deaerative heating is done to heat the steam. heat the feed water. remove dissolved. remove dissolved gases in water. heat the steam. heat the feed water. remove dissolved. remove dissolved gases in water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power planets is the least reliable Solar. Geothermal. Wind. Tidal. Solar. Geothermal. Wind. Tidal. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is 500 MJ 10 MJ 5 MJ 50 MJ 500 MJ 10 MJ 5 MJ 50 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following will take least time in starting from cold condition to full load operation Thermal power plant. Nuclear power plant. Gas turbine plant. Hydro electric power plant. Thermal power plant. Nuclear power plant. Gas turbine plant. Hydro electric power plant. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS