Answered: The maximum efficiency of a 200KVA,…

The maximum efficiency of a 200KVA, 6000/230volt, 50HZ, single phase transformer occurs at half load and is 95% at unity power factor. What is the full load efficiency at 0.7 power factor?

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 3.4MCQ: An ideal transformer has no real or reactive power loss. (a) True (b) False

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Concept explainers

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.

Question

The maximum efficiency of a 200KVA, 6000/230volt, 50HZ,
single phase transformer occurs at half load and is 95% at
unity power factor. What is the full load efficiency at 0.7
power factor?

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