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? 0.344∠90° A/phase 0.512∠90° A/phase 1.144∠90° A/phase 0.144∠90° A/phase 0.344∠90° A/phase 0.512∠90° A/phase 1.144∠90° A/phase 0.144∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plug setting of a relay can be altered by varying air gap of magnetic path. no. of ampere-turns. adjustable back up stop. none of these. air gap of magnetic path. no. of ampere-turns. adjustable back up stop. none of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following are the fissile materials U238 and Th232. None of these. U235, U233 and Pu239. U235 and Th239. U238 and Th232. None of these. U235, U233 and Pu239. U235 and Th239. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of electrical power transmission is/are Voltage regulation of the transmission line must be zero or minimum Transmission system must be more efficient with minimum line losses nether 1 nor 2 both 1 and 2 Voltage regulation of the transmission line must be zero or minimum Transmission system must be more efficient with minimum line losses nether 1 nor 2 both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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? 41.075 kV/phase 17.32 kV/phase 34.64 kV/phase 82.15 kV/phase 41.075 kV/phase 17.32 kV/phase 34.64 kV/phase 82.15 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a thermal power plant, which of its following components needs maximum maintenance attention Condenser. Super heater. Steam turbine. Boiler. Condenser. Super heater. Steam turbine. Boiler. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS