Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 2.63 msec 1.47 msec 4.68 msec 9.68 2.63 msec 1.47 msec 4.68 msec 9.68 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Counter poise is used for proper discharging of lighting surges more surge impedance reduce losses less surge impedance proper discharging of lighting surges more surge impedance reduce losses less surge impedance ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° ℧. Find Charging current under no load? 0.512∠90° A/phase 0.344∠90° A/phase 1.144∠90° A/phase 0.144∠90° A/phase 0.512∠90° A/phase 0.344∠90° A/phase 1.144∠90° A/phase 0.144∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earth fault relay uses the which of the following sequence currents? positive sequence zero sequence negative sequence any of the above positive sequence zero sequence negative sequence any of the above ANSWER DOWNLOAD EXAMIANS APP
Power Systems If all the sequence voltages at the fault point in a power system are equal, then the fault point is a LLL LG LLG LL LLL LG LLG LL ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect can be compensated by which of the following shunt reactor series capacitor shunt capacitor both 1 and 2 shunt reactor series capacitor shunt capacitor both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS