Power Systems Peterson coil is used in case of transmission line for increase the voltage level compensation of arcing grounds reduce ferranti effect improve power factor increase the voltage level compensation of arcing grounds reduce ferranti effect improve power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal protection relay provides protection against what? Short circuit Over load Temperature any of the above Short circuit Over load Temperature any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? -0.85 Hz 0.76 Hz -0.76 Hz 0.85 Hz -0.85 Hz 0.76 Hz -0.76 Hz 0.85 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding? Solid. Resistance. Reactance. Peterson coil. Solid. Resistance. Reactance. Peterson coil. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power generating station has a maximum demand of 1000 MW. The annual load factor is 75% and plant capacity factor is 60%. Calculate the reserve capacity? 750 MW 250 MW 500 MW 1250 MW 750 MW 250 MW 500 MW 1250 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF? 160 Ω 200 Ω 400 Ω 800 Ω 160 Ω 200 Ω 400 Ω 800 Ω ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS