Power Systems Which of following materials can be used as coolant CO2. Helium. Any of above. Heavy water. CO2. Helium. Any of above. Heavy water. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 1 pu 5 pu 0.2 pu 0.25 pu 1 pu 5 pu 0.2 pu 0.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earthing switch is used for discharging residual energies All of these measuring of safety voltage protection of equipment from ground faults discharging residual energies All of these measuring of safety voltage protection of equipment from ground faults 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? 29 kHz 290 kHz 2.9 kHz 29 MHz 29 kHz 290 kHz 2.9 kHz 29 MHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is 0.5 pu 0.4 pu 1 pu 0.8 pu 0.5 pu 0.4 pu 1 pu 0.8 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of re-striking voltage is dependent upon inductance of the system only resistance of the system only capacitance of the system only both 1 and 2 inductance of the system only resistance of the system only capacitance of the system only both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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