Power Systems A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is 104.8 kA. 35 kA. 3600 A. 1200 A. 104.8 kA. 35 kA. 3600 A. 1200 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Units of incremental cost is RsMW/hr Rs/MWhr Rs/hr MWhr/Rs RsMW/hr Rs/MWhr Rs/hr MWhr/Rs ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 225 electrical degrees/s² 12.5 electrical degrees/s² 22.5 electrical degrees/s² 125 electrical degrees/s² 225 electrical degrees/s² 12.5 electrical degrees/s² 22.5 electrical degrees/s² 125 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 66 kV lines the number of insulator discs of each 11 kV used are 12 6 5 3 12 6 5 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The specific speeds of Kaplan, Francis and Pelton turbines are in the increasing order. neither increasing nor decreasing order. the decreasing order. None of these the increasing order. neither increasing nor decreasing order. the decreasing order. None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 36 kV 45 kV 40 kV 32 kV 36 kV 45 kV 40 kV 32 kV ANSWER DOWNLOAD EXAMIANS APP
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