Rework Problem 3.14 if the transformer is delivering rated load at rated secondary voltage and at

(a) unity power factor,

(b) 0.8 power factor leading. Compare the results with those of Problem 3.14.

Problem 3.14

A single-phase 50-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer at the load end of a 2400 -volt feeder whose series impedance is \((1.0+j 2.0)\) ohms. The equivalent series impedance of the transformer is \((1.0+j 2.5)\) ohms referred to the highvoltage (primary) side. The transformer is delivering rated load at a 0.8 power factor lagging and at a rated secondary voltage. Neglecting the transformer exciting current.