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 2 5 6 8 2 5 6 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor? 5d 2d 3d d 5d 2d 3d d ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase? 0.93 1.13 1 0.882 0.93 1.13 1 0.882 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 Y-Y connection Δ-Y connection Y-Δ connection Δ-Δ connection Y-Y connection Δ-Y connection Y-Δ connection ANSWER DOWNLOAD EXAMIANS APP
Power Systems Main bus bar protection scheme is /are differential protection. both fault bus and differential protection. none of these. fault bus protection. differential protection. both fault bus and differential protection. none of these. fault bus protection. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The advantage of hydro electric power station over thermal power station is hydro electric power station can supply the power throughout the year hydro electric station can be constructed at the place where the energy is required the operation cost of hydro electric power station is low the initial cost of hydro electric power station is low hydro electric power station can supply the power throughout the year hydro electric station can be constructed at the place where the energy is required the operation cost of hydro electric power station is low the initial cost of hydro electric power station is low ANSWER DOWNLOAD EXAMIANS APP
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