Power Systems The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is 2 pu 0.2 pu 0.5 pu 4 pu 2 pu 0.2 pu 0.5 pu 4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance? 50 ohms 500 ohms 0.5 ohm 5 ohms 50 ohms 500 ohms 0.5 ohm 5 ohms 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 3.75 pu 2.5 pu 7.25 pu 4.28 pu 3.75 pu 2.5 pu 7.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? Buccholz relays Differential relays over current relays both 1 and 2 Buccholz relays Differential relays over current relays both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? any of the above RMS and Instantaneous value RMS and RMS value Instantaneous and RMS value any of the above RMS and Instantaneous value RMS and RMS value Instantaneous and RMS value ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pelton turbine is a ----------- turbine axial flow any of the above inward radial flow impulsive axial flow any of the above inward radial flow impulsive ANSWER DOWNLOAD EXAMIANS APP
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