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. 14 %. 56 %. 28 %. None of above 14 %. 56 %. 28 %. None of above ANSWER DOWNLOAD EXAMIANS APP
Power Systems A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F? 0.5 F 1 F 2 F 4 F 0.5 F 1 F 2 F 4 F 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 Example of base load stations are thermal. both A and B. hydro. gas turbine. thermal. both A and B. hydro. gas turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of shunt compensation is/are It requires less maintanance All of these smooth voltage regulation is possible by controlling excitation single unit can be used as both capacitance and inductor by adjusting the excitation It requires less maintanance All of these smooth voltage regulation is possible by controlling excitation single unit can be used as both capacitance and inductor by adjusting the excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems Bonding is done at the both ends of the cable to reduce the copper loss iron loss sheath loss None of these copper loss iron loss sheath loss None of these ANSWER DOWNLOAD EXAMIANS APP
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