Power Systems Critical visual voltage is the voltage at which corona is visible with blue or violet colour both 1 and 2 corona is just initiated None of these corona is visible with blue or violet colour both 1 and 2 corona is just initiated None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mechanical energy is supplied to a DC generator at the rate of 4200 J / S. The generator delivers 32.2 Amp at 120 V. How much energy is cost per minute of operation 20060 J. 23060 J. 25060 J. 20160 J. 20060 J. 23060 J. 25060 J. 20160 J. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 8 10 20 4 8 10 20 4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 100 MVA 125 MVA 400 MVA 500 MVA 100 MVA 125 MVA 400 MVA 500 MVA 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 Pulversing unit. Cooling tower. Ash handling unit. Condenser. Pulversing unit. Cooling tower. Ash handling unit. Condenser. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is 20. 10. 5. 55.1. 20. 10. 5. 55.1. ANSWER DOWNLOAD EXAMIANS APP
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