Power Systems Buchholz relay is used for protection of bus bar. alternator. none of these. transformer. bus bar. alternator. none of these. transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For accurate load flow calculations on large power systems, the best method is N-R method All of these Decoupled method G-S method N-R method All of these Decoupled method G-S method ANSWER DOWNLOAD EXAMIANS APP
Power Systems To protect the power transformer ( Y-Y with neutral grounded) against fault, which type of connection do the current transformers have? Y-Δ connection Δ-Y connection Y-Y connection Δ-Δ connection Y-Δ connection Δ-Y connection Y-Y connection Δ-Δ connection ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the frequency is increased, then skin effect will remains unaffected any of the above increases decreases remains unaffected any of the above increases decreases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? By increasing of temperature, neither 1 nor 2 sag increase tension decrease both 1 and 2 neither 1 nor 2 sag increase tension decrease both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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)? 1 × 106 kV / sec. 3 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. 1 × 106 kV / sec. 3 × 106 kV / sec. 3.5 × 106 kV / sec. 2 × 106 kV / sec. ANSWER DOWNLOAD EXAMIANS APP
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