A 300-km, 230-kV, 60-Hz three-phase line has a positive-sequence series impedance z = 0.08 + j0.48 22/km and a positive-sequence shunt admittance y=j3.33 * 10-6 S/km. At full load, the line delivers 250 MW at 0.99 p.f. lagging and at 220 kV. calculate: (a) (7 points) Exact ABCD parameters. (b) (7 points) Equivalent π circuit. (c) (6 points) The sending-end voltage and current.