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A three-phase 12-mile, 50 kV (line), 60 Hz line has a resistance of 0.1, capacitance of...

A three-phase 12-mile, 50 kV (line), 60 Hz line has a resistance of 0.1, capacitance of 0.01 and inductance of 1 mH/km. The load at the receiving end of the line absorbs 10 MVA at 90 percent of rated voltage. Calculate:

  1. ABCD parameters of the line
  2. The sending-end voltage if the load power factor is 0.8 lagging.
  3. The sending-end line voltage, line current and complex power if the load has a power factor of 0.7 leading.
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