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? 290 kHz 29 MHz 29 kHz 2.9 kHz 290 kHz 29 MHz 29 kHz 2.9 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a regenerative cycle, feed water is heated by heaters. exhaust gas. all of above. drained steam from turbine. heaters. exhaust gas. all of above. drained steam from turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 40 Ω 52 Ω 28 Ω 33 Ω 40 Ω 52 Ω 28 Ω 33 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Switchgear equipment include switches. fuses. relays and CB. all of these. switches. fuses. relays and CB. all of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 17.32 kV/phase 82.15 kV/phase 34.64 kV/phase 41.075 kV/phase 17.32 kV/phase 82.15 kV/phase 34.64 kV/phase 41.075 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which cooling is preferred for large turbine generator None of these. Nitrogen cooling. Oxygen cooling. Hydrogen cooling. None of these. Nitrogen cooling. Oxygen cooling. Hydrogen cooling. ANSWER DOWNLOAD EXAMIANS APP
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