Power Systems For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo generator rated 100 MVA, 11 kV? 6 MJ/MVA 2 MJ/MVA 4 MJ/MVA 8 MJ/MVA 6 MJ/MVA 2 MJ/MVA 4 MJ/MVA 8 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following materials is/are used as moderators? graphite heavy water All of these beryllium graphite heavy water All of these beryllium ANSWER DOWNLOAD EXAMIANS APP
Power Systems Gross head of an hydroelectric power station is the height of water level in the river where the tail race is provided. the difference of water level between the level in storage and tail race. all of above. the height of water level in the river where the storage is provided. the height of water level in the river where the tail race is provided. the difference of water level between the level in storage and tail race. all of above. the height of water level in the river where the storage is provided. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation? 0.8 lag 0.8 lead 0.6 lag 0.6 lead 0.8 lag 0.8 lead 0.6 lag 0.6 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earthing switch is used for measuring of safety voltage All of these discharging residual energies protection of equipment from ground faults measuring of safety voltage All of these discharging residual energies protection of equipment from ground faults 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. stopping time. settling time. coasting time. damping time. stopping time. settling time. coasting time. ANSWER DOWNLOAD EXAMIANS APP
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