A 25 kVA, 550/220 volt transformer has rated copper loss of 350 watts. With the low voltage winding short circuited, it requires 25 V across the high voltage winding to permit rated current through both windings of the transformer. What is the percent impedance of the transformer? A. 5.26% 8.4.55% C. 8.53% D. 9.42%

A 25 kVA, 550/220 volt transformer has rated copper loss of 350 watts. With the low voltage winding short circuited, it requires 25 V across the high voltage winding to permit rated current through both windings of the transformer. What is the percent impedance of the transformer? A. 5.26% 8.4.55% C. 8.53% D. 9.42%

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 3.16MCQ: In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across...

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