Power Systems Buchholz relay is used for protection of alternator. transformer. none of these. bus bar. alternator. transformer. none of these. bus bar. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase transmission line, each phase is supported by 3 insulated discs, maximum voltage of each disc is 20 kV. Find the operating voltage of the transmission line per phase if efficiency of string is 80.6%. 52.84 kV 20 kV 48.36 kV 83.76 kV 52.84 kV 20 kV 48.36 kV 83.76 kV 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? Δ-Δ connection Δ-Y connection Y-Y connection Y-Δ connection Δ-Δ connection Δ-Y connection Y-Y connection Y-Δ connection ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is/are more reliable? All of these Fast Decoupled Load Flow (FDLF) method Newton Raphson (NR) method Gauss-Siedel (GS) method All of these Fast Decoupled Load Flow (FDLF) method Newton Raphson (NR) method Gauss-Siedel (GS) method ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the effects of corona charging current increases All of these power loss decreases interference decreases charging current increases All of these power loss decreases interference decreases ANSWER DOWNLOAD EXAMIANS APP
Power Systems In relay coil which is used? Potential transformer. Power transformer. Instrument transformer. Current transformer. Potential transformer. Power transformer. Instrument transformer. Current transformer. ANSWER DOWNLOAD EXAMIANS APP
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