Power Systems Which of the following statements is/are true? The elements of each row of a Y bus matrix for load flow studies in power system add up to zero if both 2 and 3 are satisfied if the mutual couplings between transmission lines are absent always if the shunt admittances at the buses are ignored if both 2 and 3 are satisfied if the mutual couplings between transmission lines are absent always if the shunt admittances at the buses are ignored ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect can be compensated by which of the following shunt reactor shunt capacitor series capacitor both 1 and 2 shunt reactor shunt capacitor series capacitor both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency? 29 MHz 29 kHz 2.9 kHz 290 kHz 29 MHz 29 kHz 2.9 kHz 290 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Critical mass is maximum mass of fissionable material required to sustain a chain reaction. a mass of fissionable material required to stop a chain reaction. minimum mass of fissionable material required to sustain chain reaction. none of these. maximum mass of fissionable material required to sustain a chain reaction. a mass of fissionable material required to stop a chain reaction. minimum mass of fissionable material required to sustain chain reaction. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The specific speed of water turbine is the speed at which the turbine develops unit horse power at all heads. unit horse power at unit head. maximum horse power. a minimum horse power. unit horse power at all heads. unit horse power at unit head. maximum horse power. a minimum horse power. 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. 14 %. None of above 56 %. 28 %. 14 %. None of above 56 %. 28 %. ANSWER DOWNLOAD EXAMIANS APP
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