A lossless transmission line with characteristic impedance of 500 is an unknown load is terminated with impedance. A/4 from the load on the line at some point away voltage and current values as V = 10 - j10V, I = -0.2 + jo.6A respectively. are given. Find the load impedance accordingly.

Transmission line parametres

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.