Power Systems IF the time of operation of a relay for unity TMS is 10 sec then the time of operation for 0.5 TMS is 10 sec. none of these. 5 sec. 20 sec. 10 sec. none of these. 5 sec. 20 sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be 50. 25. 15. 10. 50. 25. 15. 10. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 5 pu 5.353 pu 3.535 pu 7 pu 5 pu 5.353 pu 3.535 pu 7 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Merze price current scheme protection is used in both A and B. bus bars. alternator. transformer. both A and B. bus bars. alternator. transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power plants the size of coal after crushing 300 mm. 20 - 25 mm. 40 mm. 200 - 205 mm. 300 mm. 20 - 25 mm. 40 mm. 200 - 205 mm. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is 10 16 6 2 10 16 6 2 ANSWER DOWNLOAD EXAMIANS APP
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