A 5 kVA, 2400-120/240volt distribution transformer when given a short circuit test had 94.2 volts applied with rated current flowing in the short circuited wiring. What is the per unit impedance of the transformer? 0.0415 ohms O 0.0435 ohms 0.0392 ohms 0.0386 ohms

A 5 kVA, 2400-120/240volt distribution transformer when given a short circuit test had 94.2 volts applied with rated current flowing in the short circuited wiring. What is the per unit impedance of the transformer? 0.0415 ohms O 0.0435 ohms 0.0392 ohms 0.0386 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 3.11MCQ: For a short-circuit test on a 2-winding transformer, with one winding shorted, can you apply the...

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Concept explainers

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.

Question

A 5 kVA, 2400-120/240volt distribution transformer when given a short
circuit test had 94.2 volts applied with rated current flowing in the short-
circuited wiring. What is the per unit impedance of the transformer?
O 0.0415 ohms
0.0435 ohms
0.0392 ohms
O 0.0386 ohms

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