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 A synchronous generator is of 100 MVA have inertia constant of 20 MJ/MVA. Find the angular momentum in MJsec/electrical degrees 0.4 0.22 2000 5 0.4 0.22 2000 5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have zero power factor unity power factor 0.707 lagging power factor 0.707 leading power factor zero power factor unity power factor 0.707 lagging power factor 0.707 leading power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A buchholz relay is used for both 1 and 2 nether 1 nor 2 protection of a transformer against all external faults protection of a transformer against all internal faults both 1 and 2 nether 1 nor 2 protection of a transformer against all external faults protection of a transformer against all internal faults ANSWER DOWNLOAD EXAMIANS APP
Power Systems The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be 250 500 450 900 250 500 450 900 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following configuration power transferability is higher? same in both configuration triangular configuration horizontal configuration None of these same in both configuration triangular configuration horizontal configuration None of these ANSWER DOWNLOAD EXAMIANS APP
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