Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 2 H 15.9 H 15.9 mH 2 mH 2 H 15.9 H 15.9 mH 2 mH ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant? 3750 kW 3000 kW 7500 kW 6000 kW 3750 kW 3000 kW 7500 kW 6000 kW ANSWER DOWNLOAD EXAMIANS APP
Power Systems When bundle conductor are used in place of single conductor the effective inductance and capacitance will respectively decrease and increase. increase and decrease. increase and remain unaffected. decrease and remain unaffected. decrease and increase. increase and decrease. increase and remain unaffected. decrease and remain unaffected. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Skin effective is more in case of communication lines None of these power lines same in both cases communication lines None of these power lines same in both cases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Per unit of any quantity is defined as base value of quantity /actual value of quantity in same units base value of quantity /actual value of quantity in different units actual value of quantity /base value of quantity in different units actual value of quantity /base value of quantity in same units base value of quantity /actual value of quantity in same units base value of quantity /actual value of quantity in different units actual value of quantity /base value of quantity in different units actual value of quantity /base value of quantity in same units 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
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