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 290 kHz 2.9 kHz 29 MHz 29 kHz 290 kHz 2.9 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MW capacity generator has a speed regulation of 4% for a frequency drop of 0.05 Hz. Find the power input supplied by the turbine for maintaining constant frequency? 15 MW 5 MW 10 MW 20 MW 15 MW 5 MW 10 MW 20 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to supply water at constant pressure. none of above. relieve water hammer pressure in the penstock. produce surge in the pipeline. supply water at constant pressure. none of above. relieve water hammer pressure in the penstock. produce surge in the pipeline. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses? 105.2 85.5 102.5 95.5 105.2 85.5 102.5 95.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Radio interference occur in telecommunication line due to electro static induction electro magnetic induction nether 1 nor 2 both 1 and 2 electro static induction electro magnetic induction nether 1 nor 2 both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draft tube is provided to reduce the effect of water hammer. increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. None of these reduce the effect of water hammer. increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. None of these ANSWER DOWNLOAD EXAMIANS APP
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