Power Systems A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 33 Ω 28 Ω 40 Ω 52 Ω 33 Ω 28 Ω 40 Ω 52 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the reflected voltage? -81.82 kV 18.18 kV 81.82 kV -18.18 kV -81.82 kV 18.18 kV 81.82 kV -18.18 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line? long transmission line medium transmission line short transmission line any of the above long transmission line medium transmission line short transmission line any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero voltage regulation is possible only for lagging power factor All of these unity power factor leading power factor lagging power factor All of these unity power factor leading power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relationships are not valid for short transmission lines B = C = Z Is = Ir All of these A = D = 1 B = C = Z Is = Ir All of these A = D = 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation of the modern EHV lines is designed based on corona. the lighting voltage. the switch voltage. R × I. corona. the lighting voltage. the switch voltage. R × I. ANSWER DOWNLOAD EXAMIANS APP
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