Power Systems A generating station has a maximum demand of 100 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 15 MW 80 MW 10 MW 20 MW 15 MW 80 MW 10 MW 20 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive sequence reactance will be equal to negative sequence if the equipment is transformer and transmission lines. generator. motor. none of these. transformer and transmission lines. generator. motor. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 1 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. 3 × 106 kV / sec. 1 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. 3 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In Rankine cycle, the work output from a turbine is given by change of enthalpy between inlet and outlet. change of entropy between inlet and outlet. change in temperature between inlet and outlet. change in internal energy between inlet and outlet. change of enthalpy between inlet and outlet. change of entropy between inlet and outlet. change in temperature between inlet and outlet. change in internal energy between inlet and outlet. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is 8 MJ 200 MJ 50 MJ 400 MJ 8 MJ 200 MJ 50 MJ 400 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems Capacitance voltage transformer ( CVT ) is used to connect instruments on the LT side. reduce losses in a transmission line. none of these. improve the power factor of the transmission. connect instruments on the LT side. reduce losses in a transmission line. none of these. improve the power factor of the transmission. ANSWER DOWNLOAD EXAMIANS APP
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