Power Systems Critical disruptive voltage is a voltage at which corona is just initiated both 1 and 2 nether 1 nor 2 corona is visible with blue or violet colour corona is just initiated both 1 and 2 nether 1 nor 2 corona is visible with blue or violet colour ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.56 0.56 -0.92 0.92 -0.56 0.56 -0.92 0.92 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In triangular configuration, inductance and capacitance values are ------ and ------ respectively higher, higher higher, less less, higher less, less higher, higher higher, less less, higher less, less ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Bulk oil type CB Air blast CB Vacuum CB Sulphur hexafluoride CB Bulk oil type CB Air blast CB Vacuum CB Sulphur hexafluoride CB ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draft tube is provided to reduce the effect of water hammer. None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The commercial sources of energy are solar, wind, biomass. wood, animal wastes and agricultural wastes. fossile fuels and radioactive substances. none of above. solar, wind, biomass. wood, animal wastes and agricultural wastes. fossile fuels and radioactive substances. none of above. ANSWER DOWNLOAD EXAMIANS APP
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