The length of a three-phase power transmission line with a nominal voltage of 69 kV is 16 km. The impedance of the transmission line per unit length is 0.125 + j0.4375 ohm/km. A 70 MVA star-connected load with a power factor of 0.8 is fed from the end of the line under 69 kV interphase voltage. The circuit element with a capacitance of 19.14 mF/phase is placed at the end of the transmission line as a shunt.
According to these given:
a) Calculate the line head voltage and current.
b) Calculate the line head, active, and reactive power.