A 580 km 720 kV 60 Hz three-phase overhead transmission line has a characteristic impedance of 270 2 and a propagation constant of j0.002 km'. Find the following: 1) The wavelength of the line. 2) The total impedance (in 2) of the line. 3) The ABCD parameters of the line. 4) If the line operates at full load to deliver power to a 720 kV 10 MVA load at 0.8 power factor (lagging), determine the voltage and the current at the center between the load and the supply.

Answer the first and last 2 qestion Step By Step

The impedance of a transmission line with a length of 50 km is given as z = 0.08 + j0.48 22/km. At the end of the line, a power of 250 MW is drawn with a lagging power factor of cosy = 0.95 under 220 kV voltage. Under these conditions, find the voltage, current, and power factor at the beginning of the line.