A single-circuit 60-Hz transmission line is 370 km (or 230 mi) long. The conductor’s outside diameter is 0.977in. And the flat horizontal spacing is 7.25 m (or 23.8 ft) between conductors. The resistance of the conductor is 0.1603 ohm/mile. The load on the line is 125MW at 215kV with 1 unity power factor. 

(a) Find the voltage, current, and power at the sending end.

(b)Find the voltage regulation of the line. 

(c) Determine the wavelength and velocity of propagation of the line.