A Three-Phase Overhead Transmission Line
November 8th, 2022
A three-phase overhead transmission line line has a per-phase resistance of 0.15 ohm/km and a per-phase inductance of 1.3263 mH/km. Assume that the shunt capacitance is negligible. The length f the line is 40 kilometers and it operates under 220 kV and 60-Hz. The line is supplying a three-phase load of 381 MVA at 0.8 power factor leading and at 220kV. Using the short line method calculate the sending-end three-phase complex power and the transmission line efficiency.