A three-phase, 60 Hz transmission line has the following parameters R = 0.25 Ohms/mi, X = 1.0 Ohms/mi, and Y = 5.0uS/mi. The line is 200 mi long and it delivers 150 MW at 220 kV and unity power factor to a substation at its receiving end.
a) Calculate the voltage, current, power factor, and real power at the sending end.
b) Calculate the voltage regulation of the line