Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 100 MVA 400 MVA 500 MVA 125 MVA 100 MVA 400 MVA 500 MVA 125 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance? 500 ohms 50 ohms 0.5 ohm 5 ohms 500 ohms 50 ohms 0.5 ohm 5 ohms ANSWER DOWNLOAD EXAMIANS APP
Power Systems The thermal efficiency of BWR is None of these less than that of PWR. equal to that of PWR. greater than that of PWR. None of these less than that of PWR. equal to that of PWR. greater than that of PWR. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The shape of the disc of an induction disc relay is none of these. spiral. elliptical. circular. none of these. spiral. elliptical. circular. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is one - third of maximum. zero. one - third of minimum. two - thirds of maximum. one - third of maximum. zero. one - third of minimum. two - thirds of maximum. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 3000 kW 7500 kW 6000 kW 3750 kW 3000 kW 7500 kW 6000 kW 3750 kW ANSWER DOWNLOAD EXAMIANS APP
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