Power Systems A 10 MVA generator has reactance of 0.2 pu. Find the new reactance value for 50 MVA base? 1 pu 5 pu 0.2 pu 0.25 pu 1 pu 5 pu 0.2 pu 0.25 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Making and breaking currents of 3 phase AC circuit breakers in power system are respectively in what form? any of the above Instantaneous and RMS value RMS and RMS value RMS and Instantaneous value any of the above Instantaneous and RMS value RMS and RMS value RMS and Instantaneous value ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? 0.85 Hz 0.76 Hz -0.76 Hz -0.85 Hz 0.85 Hz 0.76 Hz -0.76 Hz -0.85 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems For which one of the following types of motors, is the equal area criterion for stability applicable? Three phase synchronous motor DC shunt motor DC series motor Three phase induction motor Three phase synchronous motor DC shunt motor DC series motor Three phase induction motor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the number of strands of ACSR conductor for 4 layer transmission line? 37 7 1 29 37 7 1 29 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications Cooling tower. Ash handling unit. Pulversing unit. Condenser. Cooling tower. Ash handling unit. Pulversing unit. Condenser. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS