Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance? 50 ohms 500 ohms 0.5 ohm 5 ohms 50 ohms 500 ohms 0.5 ohm 5 ohms ANSWER DOWNLOAD EXAMIANS APP
Power Systems Corona loss is ----------------- on hilly areas than as plain areas. remain same None of these less more remain same None of these less more ANSWER DOWNLOAD EXAMIANS APP
Power Systems The average thermal efficiency of a modern nuclear power plant is about 40 %. 60 %. 30 %. 80 %. 40 %. 60 %. 30 %. 80 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 11.8% 85% 15% 88.2% 11.8% 85% 15% 88.2% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The SWR on a lossless transmission line of the characteristic impedance 100 ohm is 3. The line is the terminated by A resistance of 100/3 ohm. A resistance of j300 ohm. A resistance of j100/3 ohm. A resistance of 100 ohm. A resistance of 100/3 ohm. A resistance of j300 ohm. A resistance of j100/3 ohm. A resistance of 100 ohm. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following configuration power transferability is higher? horizontal configuration same in both configuration None of these triangular configuration horizontal configuration same in both configuration None of these triangular configuration ANSWER DOWNLOAD EXAMIANS APP
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