Power Systems Power transmission lines are transposed to reduce skin effect ferranti effect proximity effect radio interference skin effect ferranti effect proximity effect radio interference ANSWER DOWNLOAD EXAMIANS APP
Power Systems The total number of strands(N) is concentrically stranded cable with total annular space filled with strands of uniform diameter is given by (if x is number of layers) N = 3x²-2x+1 N = 3x²-3x+1 N = 3x²-6x+1 N = 3x²+3x+1 N = 3x²-2x+1 N = 3x²-3x+1 N = 3x²-6x+1 N = 3x²+3x+1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Units of incremental cost is Rs/hr Rs/MWhr RsMW/hr MWhr/Rs Rs/hr Rs/MWhr RsMW/hr MWhr/Rs 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 MHz 29 kHz 2.9 kHz 290 kHz 29 MHz 29 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? gas based thermal power plant nuclear plant pumped storage hydro power plant coal based thermal power plant gas based thermal power plant nuclear plant pumped storage hydro power plant coal based thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Due to corona, power loss increases charging current increases All of these interference increases power loss increases charging current increases All of these interference increases ANSWER DOWNLOAD EXAMIANS APP
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