Power Systems Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load? 1.098 pu 0.98 pu 1 pu 0.098 pu 1.098 pu 0.98 pu 1 pu 0.098 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection relay provides protection against what? Temperature Short circuit any of the above Over load Temperature Short circuit any of the above Over load ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect shows that current density is more at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is lower at the surface of the condutor current density is more at the centre of the condutor current density is more at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is lower at the surface of the condutor current density is more at the centre of the condutor ANSWER DOWNLOAD EXAMIANS APP
Power Systems In case of failure of prime mover of the generator, which type of relay is used? reverse power relay impedance relay offset mho relay distance relays reverse power relay impedance relay offset mho relay distance relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero? 31.28 kV 29.28 kV 28.28 kV 30.28 kV 31.28 kV 29.28 kV 28.28 kV 30.28 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following grounding is not practically preferred for protection of equipments? isolated grounding All of these resistance grounding reactance grounding isolated grounding All of these resistance grounding reactance grounding ANSWER DOWNLOAD EXAMIANS APP
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