Power Systems For 66 kV lines the number of insulator discs of each 11 kV used are 5 6 12 3 5 6 12 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable? Any of these. Air blast CB. Oil CB. Vacuum CB. Any of these. Air blast CB. Oil CB. Vacuum CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Cheapest plant in operation and maintenance is hydroelectric. diesel power. nuclear. steam power. hydroelectric. diesel power. nuclear. steam power. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively? 0.6, 0.8 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is 8 5 6 2 8 5 6 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earth fault relay uses the which of the following sequence currents? zero sequence positive sequence negative sequence any of the above zero sequence positive sequence negative sequence any of the above ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS