Power Systems Units of incremental cost is RsMW/hr Rs/MWhr MWhr/Rs Rs/hr RsMW/hr Rs/MWhr MWhr/Rs Rs/hr 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 6 10 2 16 6 10 2 16 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The use of high speed circuit breakers increased the short circuit current. decrease system stability. reduces the short circuit current. improves system stability. increased the short circuit current. decrease system stability. reduces the short circuit current. improves system stability. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 100, 0.4 4, 10 100, 10 4, 0.4 100, 0.4 4, 10 100, 10 4, 0.4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in delta / delta. ground star / delta. delta / star. star / grounded star. delta / delta. ground star / delta. delta / star. star / grounded star. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the transmitted voltage? 18.18 kV 36. 36 kV 30.6 Kv 100 kV 18.18 kV 36. 36 kV 30.6 Kv 100 kV ANSWER DOWNLOAD EXAMIANS APP
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