A 10-kVA, 4800/480-V single-phase transformer has primary and secondary winding parameters of 0.6+j3.1 ohms and 0.007+j0.035 ohms respectively. If the primary voltage is maintained at 5,050 V, determine the secondary voltage if the load draws (a) half-load at 0.85 pf lagging, (b) 80% loading at 0.88 pf lagging and (c) full- load at 0.92 pf leading. Calculate also the power angle of the primary voltage.

A 10-kVA, 4800/480-V single-phase transformer has primary and secondary winding parameters of 0.6+j3.1 ohms and 0.007+j0.035 ohms respectively. If the primary voltage is maintained at 5,050 V, determine the secondary voltage if the load draws (a) half-load at 0.85 pf lagging, (b) 80% loading at 0.88 pf lagging and (c) full- load at 0.92 pf leading. Calculate also the power angle of the primary voltage.

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 3.9P

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