Power Systems Which of the following statements is/are true? Corona is reduced by decreasing the supply frequency All of these increasing the distance between the conductor increasing the radius of the conductor decreasing the supply frequency All of these increasing the distance between the conductor increasing the radius of the conductor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 - Φ, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is 1200 A. 3600 A. 104.8 kA. 35 kA. 1200 A. 3600 A. 104.8 kA. 35 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pickup value of relay is 6.5 Amp and fault current in relay coil is 39 Amp. Its plug setting multiplier is 7 A. 6 A. 8 A. 10 A. 7 A. 6 A. 8 A. 10 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For variable heads of near about but less than 30 meters, which type of turbine is used in hydro power station? Francis None of these Pelton Kaplan Francis None of these Pelton Kaplan ANSWER DOWNLOAD EXAMIANS APP
Power Systems For n bus power system size of Y bus matrix is (n-1)×(n-1) n×n (n-2)×(n-2) (n-1)×(n-2) (n-1)×(n-1) n×n (n-2)×(n-2) (n-1)×(n-2) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? pumped storage hydro power plant gas based thermal power plant coal based thermal power plant nuclear plant pumped storage hydro power plant gas based thermal power plant coal based thermal power plant nuclear plant ANSWER DOWNLOAD EXAMIANS APP
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