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Problem Feeder - Transformer

A single-phase load is supplied through a 35 kV feeder whose impedance is 115 + j380 Ohms and a 35 kV, 2400 V transformer whose equivalent impedance is 0.26 + j1.21 Ohms referred to its low voltage side. The load is 180 kW at 0.87 leading power factor and 2320 V.

(a) Compute the voltage at high-voltage terminals of the transformer.

(b) Compute the voltage at the sending end of the feeder.

(c) Compute the power and reactive power input at the sending end of the feeder.

Solution Preview

A single-phase load is supplied through a 35 kV feeder whose impedance is
115 + j380 Ohms and a 35 kV, 2400 V transformer whose equivalent impedance is
0.26 + j1.21 Ohms referred to its low voltage side. The load is 180 kW at 0.87

leading power factor and 2320 V.

(a) Compute the voltage at high-voltage terminals of the transformer.

(b) Compute the voltage at the sending end of the feeder.

(c) Compute the power and reactive power input at the sending end of the

feeder. ...

Solution Summary

This solution computes the voltage at two difference points and the power and reactive power input.

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