Power Systems The function of a surge tank is to supply water at constant pressure. produce surge in the pipeline. none of above. relieve water hammer pressure in the penstock. supply water at constant pressure. produce surge in the pipeline. none of above. relieve water hammer pressure in the penstock. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The zero sequence current of a generator for line to ground fault is j3 pu. Then the current through the neutral during the fault is j9 pu j1 pu j3 pu j6 pu j9 pu j1 pu j3 pu j6 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Transmission line parameters of the short transmission line are 1,Z,Y,1 Z,0,Y,1 1,0,Y,1 1,Z,0,1 1,Z,Y,1 Z,0,Y,1 1,0,Y,1 1,Z,0,1 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 400 MVA 200 MVA 100 MVA 500 MVA 400 MVA 200 MVA 100 MVA 500 MVA 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° 26° and 30° 30° and 45° 45° and 26° 30° and 26° 26° and 30° 30° and 45° 45° and 26° ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the rated receiving end voltage is 33 kV, then what are the limits for safe operation of equipments? 33 to 50 kV 31.35 to 34.65 kV any voltage above 33 kV 25 to 35 kV 33 to 50 kV 31.35 to 34.65 kV any voltage above 33 kV 25 to 35 kV ANSWER DOWNLOAD EXAMIANS APP
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