Power Systems An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is 100 MVA 400 MVA 500 MVA 200 MVA 100 MVA 400 MVA 500 MVA 200 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems What type of back up protection is used for alternators? Mho relay. IDMT relay. Buchholz relay. Impedance relay. Mho relay. IDMT relay. Buchholz relay. Impedance relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following grounding is not practically preferred for protection of equipments? reactance grounding All of these resistance grounding isolated grounding reactance grounding All of these resistance grounding isolated grounding ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line? long transmission line medium transmission line any of the above short transmission line long transmission line medium transmission line any of the above short transmission line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Phase shift occurs due to which of the following components? conductance capacitance inductance both 1 and 2 conductance capacitance inductance both 1 and 2 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 increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency decrease in conductor size and decrease in supply frequency increase in conductor size and increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS