Question

The impedance of a three-phase, 50 km long power transmission line per unit length is 0.05 + j0.1  / km.
A load with a power coefficient of 0.8 forward is fed from the end of the line. Line and end of line of energy transmission line
According to the intention to keep the voltage between phases constant at 154 kV;
a) Active and reactive power values ​​drawn from the beginning and end of the line,
b) Calculate the lost power spent on the energy transmission line and the efficiency of the line.

Answer 1