A single-phase transformer rated 2400 – 277 V, 50 kVA, 60 Hz is tested with the following results: Open-Circuit Test: 277V, 4.51 A, 735 w. Short-Circuit Test: 51.4V, 19.6 A, 368 w. Determine the followings; 20. The series equivalent impedance referred to the HV side (ohms). 21. The series equivalent impedance in per-unit. 22. The magnetizing branch impedances referred to the LV side (ohms).

A single-phase transformer rated 2400 – 277 V, 50 kVA, 60 Hz is tested with the following results: Open-Circuit Test: 277V, 4.51 A, 735 w. Short-Circuit Test: 51.4V, 19.6 A, 368 w. Determine the followings; 20. The series equivalent impedance referred to the HV side (ohms). 21. The series equivalent impedance in per-unit. 22. The magnetizing branch impedances referred to the LV side (ohms).

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 3.27P: A three-phase transformer is rated 1000MVA,220Y/22kV. The Y-equivalent short-circuit impedance,...

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