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A 250 km , three- phase , 50 Hz transmission line is delivering 25 MVA at...

A 250 km , three- phase , 50 Hz transmission line is delivering 25 MVA at 0.8 lagging power factor to a balanced load at 132 KV ( line-line) . The conductor resistance is 0.11 ohm/km . The line inductance per phase is 1.24 mH/km and the line to neutral capacitance is given as 9.4 x 10 – 9 F/km.

a ) find the nominal – Л representation.
b) find the sending end voltage , VS by nominal – Л representation
c) find the sending end current , I s by nominal – Л representation
d) find the sending end voltage by short line representation.

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