Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 32 kV 40 kV 36 kV 45 kV 32 kV 40 kV 36 kV 45 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.56 0.56 -0.92 0.92 -0.56 0.56 -0.92 0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems When bundle conductor are used in place of single conductor the effective inductance and capacitance will respectively increase and remain unaffected. decrease and remain unaffected. increase and decrease. decrease and increase. increase and remain unaffected. decrease and remain unaffected. increase and decrease. decrease and increase. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the total installed power capacity (MW) in West Bengal as published by ministry of power in 2011? 8113.27. 10000.32. 6114.05. 15515.22. 8113.27. 10000.32. 6114.05. 15515.22. 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 1250 MW 500 MW 750 MW 250 MW 1250 MW 500 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect is more in case of power cables over head lines same in both cases None of these power cables over head lines same in both cases None of these ANSWER DOWNLOAD EXAMIANS APP
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