Power Systems The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase? 1.25 0.89 1.13 1 1.25 0.89 1.13 1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the methods of improving transient stability? Fast acting governing system All of these Fast acting excitation control Dynamic breaking Fast acting governing system All of these Fast acting excitation control Dynamic breaking ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of electrical power transmission is/are both 1 and 2 Transmission system must be more efficient with minimum line losses nether 1 nor 2 Voltage regulation of the transmission line must be zero or minimum both 1 and 2 Transmission system must be more efficient with minimum line losses nether 1 nor 2 Voltage regulation of the transmission line must be zero or minimum ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 132 kV system, the reactance and capacitance up to the location of the CB is 3 Ω and 0.015 μF respectively. The maximum value of RRRV is 9.01 kV / μs. 2.0 kV / μs. 10.01 kV / μs. 12.2 kV / μs. 9.01 kV / μs. 2.0 kV / μs. 10.01 kV / μs. 12.2 kV / μs. 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 MHz 29 kHz 2.9 kHz 290 kHz 29 MHz 29 kHz 2.9 kHz 290 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in star / grounded star. delta / delta. ground star / delta. delta / star. star / grounded star. delta / delta. ground star / delta. delta / star. ANSWER DOWNLOAD EXAMIANS APP
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