Power Systems Differential relays does not used for which of the following faults? faults within a transformer faults within a generator through faults both 1 and 2 faults within a transformer faults within a generator through faults both 1 and 2 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? 29 kHz 290 kHz 29 MHz 2.9 kHz 29 kHz 290 kHz 29 MHz 2.9 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems For load flow studies, What are the quantities specified at load bus are P and Q P and V V and δ δ and Q P and Q P and V V and δ δ and Q ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is zero. one - third of maximum. two - thirds of maximum. one - third of minimum. zero. one - third of maximum. two - thirds of maximum. one - third of minimum. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase, 110 kV coaxial XLPE insulated power cable delivering power at 50 Hz, has a capacitance of 125 nF/km. If the dielectric loss tangent of XLPE is 2*10^-4, then dielcetric power loss in this cable in W/km/phase is 38.6 23.9 35.45 31.7 38.6 23.9 35.45 31.7 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power generating station has a maximum demand of 1000 MW. The annual load factor is 75% and plant capacity factor is 60%. Calculate the reserve capacity? 750 MW 500 MW 1250 MW 250 MW 750 MW 500 MW 1250 MW 250 MW ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS