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 200 MVA 100 MVA 400 MVA 500 MVA 200 MVA 100 MVA 400 MVA 500 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a transmission line can be increased by increasing its voltage level addition of lumped inductance in parallel addition of lumped capacitance in series both 1 and 3 increasing its voltage level addition of lumped inductance in parallel addition of lumped capacitance in series both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The presence of earth in case of overhead lines increase capacitance decrease capacitance increase inductance decrease inducatance increase capacitance decrease capacitance increase inductance decrease inducatance ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power plants needs highly skilled/qualified engineers for its operation Thermal. Nuclear. Gas-turbine. Hydro Power Plant Thermal. Nuclear. Gas-turbine. Hydro Power Plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plug setting of a relay can be altered by varying no. of ampere-turns. adjustable back up stop. air gap of magnetic path. none of these. no. of ampere-turns. adjustable back up stop. air gap of magnetic path. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances are 0.8 and 0 pu respectively. Find the positive, negative and zero sequence impedances respectively? 0.8, 0.8 and 0.8 pu 0.6, 0.6 and 0.6 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.8 and 0.8 pu 0.6, 0.6 and 0.6 pu 0.6, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
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