Power Systems Which following statement are not true for line parameters R, L, G and C of transmission line All of above. Both R and G depend on the conductivity of conductor forming the line. G = 1/R where G is conductance of line. LC = μ ε and RG = σ ε. All of above. Both R and G depend on the conductivity of conductor forming the line. G = 1/R where G is conductance of line. LC = μ ε and RG = σ ε. ANSWER DOWNLOAD EXAMIANS APP
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 2 6 8 5 2 6 8 5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect? 2 H 15.9 H 15.9 mH 2 mH 2 H 15.9 H 15.9 mH 2 mH ANSWER DOWNLOAD EXAMIANS APP
Power Systems Under over excitation synchronous phase modifier works as series capacitor any of the above shunt reactor shunt capacitor series capacitor any of the above shunt reactor shunt capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Steady state stability of a power system is improved by using double circuit line instead of single circuit line All of these decreasing generator inertia single pole switching using double circuit line instead of single circuit line All of these decreasing generator inertia single pole switching ANSWER DOWNLOAD EXAMIANS APP
Power Systems The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase? 1 0.89 1.25 1.13 1 0.89 1.25 1.13 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS