Power Systems Which of the following statement is/are true regarding infinite line? It has infinite voltage both 2 and 3 It maintains the constant voltage It has infinite length It has infinite voltage both 2 and 3 It maintains the constant voltage It has infinite length ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation? both 1 and 2 smooth voltage regulation is possible by controlling excitation initial cost is low single unit can be used as both capacitance and inductor by adjusting the excitation both 1 and 2 smooth voltage regulation is possible by controlling excitation initial cost is low single unit can be used as both capacitance and inductor by adjusting the excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems Generation of of one watt needs about ______________ fission per second 3.1 × 106. 3.1. 3.1 × 1010. 3.1 × 107. 3.1 × 106. 3.1. 3.1 × 1010. 3.1 × 107. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 48.36 kV 52.84 kV 20 kV 83.76 kV 48.36 kV 52.84 kV 20 kV 83.76 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a fault occurs on any feeder, the fault current is equal to unsectional bus bar. much higher than with unsectional bus bar. much lower than with unsectional bus bar. none of these. equal to unsectional bus bar. much higher than with unsectional bus bar. much lower than with unsectional bus bar. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 2.4 pu 1.375 pu 3.975 pu 0.2 pu 2.4 pu 1.375 pu 3.975 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
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