Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is 12.5 A 15 A 10 A 6.25 A 12.5 A 15 A 10 A 6.25 A 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 low steam turbine mechanical efficiency high energy loss in condenser low alternator efficiency high energy loss in boilers low steam turbine mechanical efficiency high energy loss in condenser low alternator efficiency high energy loss in boilers ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The line is fully loaded The line is heavily loaded The power factor is unity The line is lightly loaded The line is fully loaded The line is heavily loaded The power factor is unity The line is lightly loaded ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following plants has the maximum eapital cost Diesel plants. Steam plants. Nuclear plants. Hydro-plants. Diesel plants. Steam plants. Nuclear plants. Hydro-plants. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line long transmission line short transmission line any of the above medium transmission line long transmission line short transmission line any of the above medium transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems In an induction relay for a particular current setting the operating time 4 sec. When the time multiplier setting is 0.8 if the time multiplier setting is rest to 1 the operating time is 10. 5. 1. un changed. 10. 5. 1. un changed. ANSWER DOWNLOAD EXAMIANS APP
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