Fundamentals of Energy Systems HW5 Q3 3. Assume that a 20 kVA, 7200/120 V, 60 Hz, single-phase transformer has0.0125+j0.025 pu series impedance.• Find its rated copper loss in watts.• If the core loss is approximately 400 W, find an estimate of its Re in p.u.• If the magnetization current is 0.04 p.u., find an estimate of the magneti-zation reactance Xm in p.u.• Find the values of the series impedance and the magnetization reactancein ohms, referred to the HV side.

Step 1: Given Data: Transformer rating: Srated=20 kVA=20,000 VA Voltage rating: VHV=7200…

Answered: 3. Assume that a 20 kVA, 7200/120 V, 60…

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 3.28MCQ

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