Power Systems Which of the following plants has the maximum eapital cost Hydro-plants. Diesel plants. Nuclear plants. Steam plants. Hydro-plants. Diesel plants. Nuclear plants. Steam plants. ANSWER DOWNLOAD EXAMIANS APP
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 4, 0.4 100, 0.4 100, 10 4, 10 4, 0.4 100, 0.4 100, 10 4, 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? -0.52 Hz 0.48 Hz 0.52 Hz 50 Hz -0.52 Hz 0.48 Hz 0.52 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. 28 %. 56 %. None of above 14 %. 28 %. 56 %. None of above 14 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand? 5 cm 15 cm 1.5 cm 1 cm 5 cm 15 cm 1.5 cm 1 cm ANSWER DOWNLOAD EXAMIANS APP
Power Systems In Rankine cycle, the work output from a turbine is given by 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. change of enthalpy between inlet and outlet. ANSWER DOWNLOAD EXAMIANS APP
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