Power Systems Which of the following grounding is not practically preferred for protection of equipments? isolated grounding All of these resistance grounding reactance grounding isolated grounding All of these resistance grounding reactance grounding ANSWER DOWNLOAD EXAMIANS APP
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 500 MVA 400 MVA 100 MVA 200 MVA 500 MVA 400 MVA 100 MVA 200 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect will not occur in which of the following transmission lines short transmission lines All of these long transmission lines medium transmission lines short transmission lines All of these long transmission lines medium transmission lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro power plant of run off river type should be provided with pondage so that the operating head is controlled. pressure inside the turbine casing remains. firm capacity of plant is increased. kinetic energy of the running water is fully utilized. operating head is controlled. pressure inside the turbine casing remains. firm capacity of plant is increased. kinetic energy of the running water is fully utilized. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which type of connection is employed for current transformers for the protection of delta- star connected 3-phase transformer? star-delta star-star delta-star delta-delta star-delta star-star delta-star delta-delta ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Use of steam for heating of boiler feed water. All of these Reheat of steam an intermediate stages. Use of high pressure. Use of steam for heating of boiler feed water. All of these Reheat of steam an intermediate stages. Use of high pressure. ANSWER DOWNLOAD EXAMIANS APP
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