Power Systems The most commonly used material for insulators of overhead lines is porcelain PVC mica glass porcelain PVC mica glass ANSWER DOWNLOAD EXAMIANS APP
Power Systems Length of the cable is doubled, its capacitance C will be one-fourth. doubled. one-half. unchanged. one-fourth. doubled. one-half. unchanged. 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 Which of the following statements is/are true? Due to corona, power loss increases interference increases charging current increases All of these power loss increases interference increases charging current increases All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs shunt capacitor at receiving end All of these shunt resistance at receiving end shunt reactor at receiving end shunt capacitor at receiving end All of these shunt resistance at receiving end shunt reactor at receiving end ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Air blast CB Vacuum CB Bulk oil type CB Sulphur hexafluoride CB Air blast CB Vacuum CB Bulk oil type CB Sulphur hexafluoride CB ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS