Power Systems The insulation of modern EHV is designed based on lightning voltage. corona. RI. switching voltage. lightning voltage. corona. RI. switching voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The method of neutral grounding affects the zero sequence network positive sequence network All of these negative sequence network zero sequence network positive sequence network All of these negative sequence network 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 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 What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV? 1.05. 1.20. 0.75. 0.90. 1.05. 1.20. 0.75. 0.90. 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 50 kV. 100 kV. 200 kV. 400 kV. 50 kV. 100 kV. 200 kV. 400 kV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a fault occurs on any feeder, the fault current is much lower than with unsectional bus bar. much higher than with unsectional bus bar. equal to unsectional bus bar. none of these. much lower than with unsectional bus bar. much higher than with unsectional bus bar. equal to unsectional bus bar. none of these. ANSWER DOWNLOAD EXAMIANS APP
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