Answered: 3- At full-load, the Cu and iron losses…

3- At full-load, the Cu and iron losses in a 100-kVA transformer are each equal to 2.5 kW. Find the efficiency at a load of 65 kVA, power factor 0.8.

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 3.2MCQ: For an ideal transformer, the efficiency is (a) 0 (b) 100 (c) 50

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3- At full-load, the Cu and iron losses in a 100-kVA transformer are each
equal to 2.5 kW. Find the efficiency at a load of 65 kVA, power factor
0.8.

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