Power Systems The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase? 1 1.25 0.89 1.13 1 1.25 0.89 1.13 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following effects are associated with transmission line All of these skin effect ferranti effect corona effect All of these skin effect ferranti effect corona effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems Main bus bar protection scheme is /are differential protection. both fault bus and differential protection. fault bus protection. none of these. differential protection. both fault bus and differential protection. fault bus protection. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In hydroelectric power plants operating cost is low and initial cost is high. operating cost is high and initial cost is low. both operating and initial cost are high. both operating and initial cost are low. operating cost is low and initial cost is high. operating cost is high and initial cost is low. both operating and initial cost are high. both operating and initial cost are low. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is true? Corona loss increases with increase in conductor size and decrease in supply frequency decrease in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and increase in supply frequency increase in conductor size and decrease in supply frequency decrease in conductor size and decrease in supply frequency decrease in conductor size and increase in supply frequency increase in conductor size and increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Location of a surge tank, in an hydro electric power station is near dam. tail race. reservoir. turbine. dam. tail race. reservoir. turbine. ANSWER DOWNLOAD EXAMIANS APP
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