Power Systems The modern trend in electric power generation to have large size thermal plants near load centre. to have large number of small size thermal plants located at different places. none of above. to have large size thermal plant located near coal fields. to have large size thermal plants near load centre. to have large number of small size thermal plants located at different places. none of above. to have large size thermal plant located near coal fields. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following transmission lines capacitance effect is negligible? both 1 and 3 shoart transmission lines medium transmission lines long transmission lines both 1 and 3 shoart transmission lines medium transmission lines long transmission lines 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? 0.48 Hz -0.52 Hz 0.52 Hz 50 Hz 0.48 Hz -0.52 Hz 0.52 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10-6∠90° ℧. Find the no load receiving end voltage? 320 kv 500 kV 600 kV 400 kV 320 kv 500 kV 600 kV 400 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generated station has a maximum demand of 30 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 10 MW 5 MW 12 MW 6 MW 10 MW 5 MW 12 MW 6 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, the symmetrical breaking capacity is 2000 MVA, 3 secs. Then the making capacity is 5000 MVA. 5100 MVA. 5200 MVA. 5500 MVA. 5000 MVA. 5100 MVA. 5200 MVA. 5500 MVA. ANSWER DOWNLOAD EXAMIANS APP
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