Power Systems The shape of the disc of an induction disc relay is elliptical. spiral. circular. none of these. elliptical. spiral. circular. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 420 Ω 400 Ω 840 Ω 210 Ω 420 Ω 400 Ω 840 Ω 210 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems In an interconnected power system, the most suitable power plant to meet the peak load condition is pumped storage plant thermal plant nuclear plant hydro power plant pumped storage plant thermal plant nuclear plant hydro power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be -2 - j 1 A 1 + j 4 A 1 + j 2 A 5 + j 7 A -2 - j 1 A 1 + j 4 A 1 + j 2 A 5 + j 7 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is true? Corona loss increases with decrease in conductor size and decrease in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and increase in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 25 MVA, 11 kV alternator is supplying full load at a point of 0.75 lagging. Determine the percentage increase in earning capacity when it is operated at improved power factor of 0.96 lagging. None of above 56 %. 14 %. 28 %. None of above 56 %. 14 %. 28 %. ANSWER DOWNLOAD EXAMIANS APP
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