Power Systems Which of the following statements is/are true regarding HVDC? 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 HVDC can utilize earth for its return path ANSWER DOWNLOAD EXAMIANS APP
Power Systems In nuclear power plants which material is/are used as coolant? beryllium graphite All of these liquid sodium beryllium graphite All of these liquid sodium ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer capability of transmission line can be increased by Using bundled conductors Parallel transmission lines All of these Using series capacitance Using bundled conductors Parallel transmission lines All of these Using series capacitance ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be 89.22 kVA. 49 kVA. 35 kVA. 70 kVA. 89.22 kVA. 49 kVA. 35 kVA. 70 kVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In load flow studies PV bus is treated as PQ bus when phase angle become high 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 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? 2.9 kHz 290 kHz 29 kHz 29 MHz 2.9 kHz 290 kHz 29 kHz 29 MHz ANSWER DOWNLOAD EXAMIANS APP
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