Power Systems The most commonly used material for insulators of overhead lines is mica PVC porcelain glass mica PVC porcelain glass ANSWER DOWNLOAD EXAMIANS APP
Power Systems If all the sequence voltages at the fault point in a power system are equal, then the fault point is a LL LG LLG LLL LL LG LLG LLL ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is an impulse turbine Kaplan turbine. None of above. Pelton turbine. Francis turbine. Kaplan turbine. None of above. Pelton turbine. Francis turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In case of failure of prime mover of the generator, which type of relay is used? distance relays offset mho relay reverse power relay impedance relay distance relays offset mho relay reverse power relay impedance relay 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? 41.075 kV/phase 34.64 kV/phase 17.32 kV/phase 82.15 kV/phase 41.075 kV/phase 34.64 kV/phase 17.32 kV/phase 82.15 kV/phase 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 2000 0.4 5 0.22 2000 0.4 5 0.22 ANSWER DOWNLOAD EXAMIANS APP
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