Power Systems A 200 MW capacity generator has a speed regulation of 4% for a frequency drop of 0.05 Hz. Find the power input supplied by the turbine for maintaining constant frequency? 5 MW 10 MW 20 MW 15 MW 5 MW 10 MW 20 MW 15 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? In case of parallel transmission lines both 1 and 3 fault current increases fault current reduces stability increases both 1 and 3 fault current increases fault current reduces stability increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 3.975 pu 0.2 pu 1.375 pu 2.4 pu 3.975 pu 0.2 pu 1.375 pu 2.4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line any of the above long transmission line short transmission line medium transmission line any of the above long transmission line short transmission line medium transmission line 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 29 MHz 2.9 kHz 290 kHz 29 kHz 29 MHz 2.9 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a lossy transmission line, the characteristic impedance does not depend on The operating frequency of the line. The permittivity of the dielectric separating the conductor. The conductivity of conductors. The load terminating the line. The operating frequency of the line. The permittivity of the dielectric separating the conductor. The conductivity of conductors. The load terminating the line. ANSWER DOWNLOAD EXAMIANS APP
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