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 kHz 29 MHz 290 kHz 2.9 kHz 29 kHz 29 MHz 290 kHz 2.9 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rating of CB is in terms of VAR. volt - ampere. current. voltage. VAR. volt - ampere. current. voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 4.28 pu 3.75 pu 2.5 pu 7.25 pu 4.28 pu 3.75 pu 2.5 pu 7.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. Find the surge impedance loading with compensation? 400 MW 456 MW 386 MW 478 MW 400 MW 456 MW 386 MW 478 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The conversion ratio of breeder reactor are 1. greater than 1. less than 1. none of above. 1. greater than 1. less than 1. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A synchronous generator is of 100 MVA have inertia constant of 20 MJ/MVA. Find the angular momentum in MJsec/electrical degrees 0.4 2000 0.22 5 0.4 2000 0.22 5 ANSWER DOWNLOAD EXAMIANS APP
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