Power Systems Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF? 800 Ω 200 Ω 400 Ω 160 Ω 800 Ω 200 Ω 400 Ω 160 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the diameter of the conductor is increased the resistance is increased the inductance is decreased no change in inductance and resistance the inductance is increased the resistance is increased the inductance is decreased no change in inductance and resistance the inductance is increased 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 1 pu 0.4 pu 0.8 pu 0.5 pu 1 pu 0.4 pu 0.8 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 85% 11.8% 88.2% 15% 85% 11.8% 88.2% 15% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Offset mho relay is used for the protection of equipment when None of these loss of excitation of the generator either 1 or 2 failure of prime mover of the generator None of these loss of excitation of the generator either 1 or 2 failure of prime mover of the generator ANSWER DOWNLOAD EXAMIANS APP
Power Systems Range of accelerating factor is 10.8 to 11.2 1.6 to 1.8 50 to 100 1 to 10 10.8 to 11.2 1.6 to 1.8 50 to 100 1 to 10 ANSWER DOWNLOAD EXAMIANS APP
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