Power Systems An alternator having an induced emf of 1.6 pu is connected to an infinite bus of 1 pu. If the bus bar has reactance of 0.6 pu and alternator has reactance of 0.2 pu, what is the maximum power that can be transferred? 6 pu 2 pu 2.67 pu 5 pu 6 pu 2 pu 2.67 pu 5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Oxide film arrestor has which of the following properties? Installed at points of transmission line where daily visit is difficult. It is expensive. Both A and B. Does not require daily charging. Installed at points of transmission line where daily visit is difficult. It is expensive. Both A and B. Does not require daily charging. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Peterson coil is used in case of transmission line for improve power factor increase the voltage level reduce ferranti effect compensation of arcing grounds improve power factor increase the voltage level reduce ferranti effect compensation of arcing grounds ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants will take long period in erection and installation Gas turbine. Hydro Power Plant Thermal. Nuclear. Gas turbine. Hydro Power Plant Thermal. Nuclear. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? 0.92 0.56 -0.56 -0.92 0.92 0.56 -0.56 -0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants normally operage at high speeds Thermal. Petrol engine. Diesel engine. Hydro electric. Thermal. Petrol engine. Diesel engine. Hydro electric. ANSWER DOWNLOAD EXAMIANS APP
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