Power Systems In a short circuit test circuit breaker, time to reach the peak re-striking voltage 60 microsecond & the peak re-striking voltage 120 kV. Determine average RRRV (Rate of rise re-striking voltage)? 2 × 106 kV / sec. 1 × 106 kV / sec. 3.5 × 106 kV / sec. 3 × 106 kV / sec. 2 × 106 kV / sec. 1 × 106 kV / sec. 3.5 × 106 kV / sec. 3 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The conductor of a 10 Km long single phase, two wire line are separated by a distance of 1.5 m the diameter of each conductor the inductance of the circuit is 21.2 mH. 23.33 mH. 25.8 mH. 23.8 mH. 21.2 mH. 23.33 mH. 25.8 mH. 23.8 mH. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For distortion less line which of following relation are true R/L = C/G. R/L = G/C. None of above. R = O, G = O. R/L = C/G. R/L = G/C. None of above. R = O, G = O. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The unit protection scheme provides remote protection. simultaneous protection. primary protection. back up protection. remote protection. simultaneous protection. primary protection. back up protection. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The line is lightly loaded The line is heavily loaded The line is fully loaded The power factor is unity The line is lightly loaded The line is heavily loaded The line is fully loaded The power factor is unity ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following grounding is not practically preferred for protection of equipments? isolated grounding All of these resistance grounding reactance grounding isolated grounding All of these resistance grounding reactance grounding ANSWER DOWNLOAD EXAMIANS APP
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