Power Systems What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ? 150 : 4 / √3. 200 : 5 / √3. 120 : 6 / √3. 100 : 5 / √3. 150 : 4 / √3. 200 : 5 / √3. 120 : 6 / √3. 100 : 5 / √3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true regarding HVDC? HVDC can utilize earth for its return path There is no skin effect in dc line Corona loss is very much reduced in the dc line All of these HVDC can utilize earth for its return path There is no skin effect in dc line Corona loss is very much reduced in the dc line All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the sag(S) of a transmission line? S = wl²/4T S = wl²/16T S = wl²/2T S = wl²/8T S = wl²/4T S = wl²/16T S = wl²/2T S = wl²/8T ANSWER DOWNLOAD EXAMIANS APP
Power Systems Uses of diesel power stations All of these peak load plant. emergency plants. standby plants. All of these peak load plant. emergency plants. standby plants. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In load flow studies PV bus is treated as PQ bus when reactive power goes beyond limit any of the above voltage at the bus become high phase angle become high reactive power goes beyond limit any of the above voltage at the bus become high phase angle become high ANSWER DOWNLOAD EXAMIANS APP
Power Systems The zero sequence current of a generator for line to ground fault is j3 pu. Then the current through the neutral during the fault is j3 pu j9 pu j1 pu j6 pu j3 pu j9 pu j1 pu j6 pu ANSWER DOWNLOAD EXAMIANS APP
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