Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 34.64 kV/phase 17.32 kV/phase 41.075 kV/phase 82.15 kV/phase 34.64 kV/phase 17.32 kV/phase 41.075 kV/phase 82.15 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems For some given transmission line the expression for voltage regulation is given by (Vs - Vr)/Vr *100%. Hence, this expression is true for any line None of these this may either be a medium line or short line this must be a short line this expression is true for any line None of these this may either be a medium line or short line this must be a short line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 2 and 2 pu 2 and 5 pu 3 and 1 pu 1 and 3 pu 2 and 2 pu 2 and 5 pu 3 and 1 pu 1 and 3 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Inductance of transmission line will decrease when GMD decrease and GMR increase both GMD and GMR increase both GMD and GMR decrease GMD increase and GMR decrease GMD decrease and GMR increase both GMD and GMR increase both GMD and GMR decrease GMD increase and GMR decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across the bottom most unit is 33.33% of total voltage. Its string efficiency is 33.33% 75% 66.66% 25% 33.33% 75% 66.66% 25% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following buses is/are not PV buses? voltage control buses both 1 and 2 fixed shunt capacitor buses reactive power support buses voltage control buses both 1 and 2 fixed shunt capacitor buses reactive power support buses ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS