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 -81.82 kV -18.18 kV 18.18 kV 81.82 kV -81.82 kV -18.18 kV 18.18 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems More efficient plants are used as None of these peak load plant base load plant both 1 and 2 None of these peak load plant base load plant both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 5 + j 7 A 1 + j 4 A 1 + j 2 A -2 - j 1 A 5 + j 7 A 1 + j 4 A 1 + j 2 A -2 - j 1 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems If L and C are 4 mH and 0.0001 μF respectively a current chop of magnitude 50 Amp would induced a voltage 100 kV. 50 kV. 200 kV. 400 kV. 100 kV. 50 kV. 200 kV. 400 kV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following transformer is used in sub station for operating a protective relay? capacitor voltage transformer distribution transformer auto transformer All of these capacitor voltage transformer distribution transformer auto transformer All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect is more in case of power cables None of these over head lines same in both cases power cables None of these over head lines same in both cases ANSWER DOWNLOAD EXAMIANS APP
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