Power Systems If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is 2.5 MJ/MVA 10.5 MJ/MVA 15 MJ/MVA 6 MJ/MVA 2.5 MJ/MVA 10.5 MJ/MVA 15 MJ/MVA 6 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 29.28 kV 28.28 kV 30.28 kV 31.28 kV 29.28 kV 28.28 kV 30.28 kV 31.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true regarding infinite line? It has infinite voltage both 2 and 3 It has infinite length It maintains the constant voltage It has infinite voltage both 2 and 3 It has infinite length It maintains the constant voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is 4 pu 0.2 pu 0.5 pu 2 pu 4 pu 0.2 pu 0.5 pu 2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a pumped storage power plant is operated in conjunction with a steam power plant chances of the tripping of the system decrease All of these the operating cost of the steam plant become optimum load factor of the steam plant is increased chances of the tripping of the system decrease All of these the operating cost of the steam plant become optimum load factor of the steam plant is increased ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following will take least time in starting from cold condition to full load operation Hydro electric power plant. Nuclear power plant. Thermal power plant. Gas turbine plant. Hydro electric power plant. Nuclear power plant. Thermal power plant. Gas turbine plant. ANSWER DOWNLOAD EXAMIANS APP
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