Power Systems Which of the following power stations is mainly used to cover peak load on the system? nuclear plant gas based thermal power plant pumped storage hydro power plant coal based thermal power plant nuclear plant gas based thermal power plant pumped storage hydro power plant coal based thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following decides the insulation level of 400 kV, EHV line? skin effect switching over voltage radio interference lighting voltage skin effect switching over voltage radio interference lighting voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems Rankine cycle efficiency of a steam power plant is of 30 - 45 %. 45 - 80 %. 60 - 80 %. 20 - 30 %. 30 - 45 %. 45 - 80 %. 60 - 80 %. 20 - 30 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Buchholz relay is used for protection of alternator. bus bar. transformer. none of these. alternator. bus bar. transformer. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station supplies the peak load of 50 MW, 40 MW and 70 MW to three localities. The annual load factor is 0.50 p.u. and the diversity factor of the load at the station is 1.55 the maximum demand on the station and average load respectively will be 53 MW. 57.5 MW. 52 MW. 51.61 MW. 53 MW. 57.5 MW. 52 MW. 51.61 MW. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS