Power Systems A generated station has a maximum demand of 30 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 5 MW 6 MW 10 MW 12 MW 5 MW 6 MW 10 MW 12 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems In triangular configuration, inductance and capacitance values are ------ and ------ respectively higher, less less, less higher, higher less, higher higher, less less, less higher, higher less, higher ANSWER DOWNLOAD EXAMIANS APP
Power Systems Differential relays does not used for which of the following faults? through faults faults within a transformer both 1 and 2 faults within a generator through faults faults within a transformer both 1 and 2 faults within a generator ANSWER DOWNLOAD EXAMIANS APP
Power Systems a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency? 290 kHz 29 kHz 2.9 kHz 29 MHz 290 kHz 29 kHz 2.9 kHz 29 MHz 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 7.25 pu 4.28 pu 2.5 pu 3.75 pu 7.25 pu 4.28 pu 2.5 pu 3.75 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable? Vacuum CB. Air blast CB. Any of these. Oil CB. Vacuum CB. Air blast CB. Any of these. Oil CB. ANSWER DOWNLOAD EXAMIANS APP
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