Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in delta / star. ground star / delta. delta / delta. star / grounded star. delta / star. ground star / delta. delta / delta. star / grounded star. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the diameter of the conductor is increased the resistance is increased the inductance is increased no change in inductance and resistance the inductance is decreased the resistance is increased the inductance is increased no change in inductance and resistance the inductance is decreased ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 4.28 pu 2.5 pu 7.25 pu 3.75 pu 4.28 pu 2.5 pu 7.25 pu 3.75 pu 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 25 to 35 kV any voltage above 33 kV 31.35 to 34.65 kV 33 to 50 kV 25 to 35 kV any voltage above 33 kV 31.35 to 34.65 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Transmission line parameters of the short transmission line are 1,Z,0,1 Z,0,Y,1 1,0,Y,1 1,Z,Y,1 1,Z,0,1 Z,0,Y,1 1,0,Y,1 1,Z,Y,1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length. Decrease but does not halves. Increase but does not doubled. Halves. Doubled. Decrease but does not halves. Increase but does not doubled. Halves. Doubled. ANSWER DOWNLOAD EXAMIANS APP
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