Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are three two one six three two one six ANSWER DOWNLOAD EXAMIANS APP
Power Systems The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of high energy loss in condenser high energy loss in boilers low alternator efficiency low steam turbine mechanical efficiency high energy loss in condenser high energy loss in boilers low alternator efficiency low steam turbine mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is 5. 10. 20. 55.1. 5. 10. 20. 55.1. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 400 kV power network, 360 kV is recorded at 400 kV bus. The reactive power absorbed by a shunt reactor for 50 MVAr, 400 kV connected at the bus is 45.0 MVAr. 40.5 MVAr. 55.56 MVAr. 61.73 MVAr. 45.0 MVAr. 40.5 MVAr. 55.56 MVAr. 61.73 MVAr. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For load flow studies, What are the quantities specified at load bus are P and V P and Q δ and Q V and δ P and V P and Q δ and Q V and δ 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? 3000 kW 3750 kW 6000 kW 7500 kW 3000 kW 3750 kW 6000 kW 7500 kW ANSWER DOWNLOAD EXAMIANS APP