Power Systems Buchholz relay is used for protection of transformer. none of these. bus bar. alternator. transformer. none of these. bus bar. alternator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Location of a surge tank, in an hydro electric power station is near dam. reservoir. tail race. turbine. dam. reservoir. tail race. turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the characteristic impedance of a transmission line, if impedance is 16 Ω and admittance is 0.1 m℧? 320 Ω 400 Ω 160 Ω 200 Ω 320 Ω 400 Ω 160 Ω 200 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively? 30° and 26° 45° and 26° 30° and 45° 26° and 30° 30° and 26° 45° and 26° 30° and 45° 26° and 30° 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 shunt reactor required for compensating ferranti effect? 1500 Ω 3000 Ω 500 Ω 2000 Ω 1500 Ω 3000 Ω 500 Ω 2000 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems The commercial sources of energy are none of above. solar, wind, biomass. wood, animal wastes and agricultural wastes. fossile fuels and radioactive substances. none of above. solar, wind, biomass. wood, animal wastes and agricultural wastes. fossile fuels and radioactive substances. ANSWER DOWNLOAD EXAMIANS APP
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