1. A 2.4-kVA, 2400/240-V, 50-Hz, the step-down transformer has the following parameters: : RH = 1.50, :XH = 2.502, R₂ = 0.020, : X = 0.030, R = 6k2, and: Xm = 8kQ2. It is operating at 50% of its load at 0.5 power factor leading. Using the exact equivalent circuit embodying the ideal transformer, determine the efficiency of the transformer. Also, sketch its phasor diagram.

1. A 2.4-kVA, 2400/240-V, 50-Hz, the step-down transformer has the following parameters: : RH = 1.50, :XH = 2.502, R₂ = 0.020, : X = 0.030, R = 6k2, and: Xm = 8kQ2. It is operating at 50% of its load at 0.5 power factor leading. Using the exact equivalent circuit embodying the ideal transformer, determine the efficiency of the transformer. Also, sketch its phasor diagram.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.63P: A 23/230-kV step-up transformer feeds a three-phase transmission line, which in turn supplies a...

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