When conducting no-load test on a given single- phase transformer, the following test data were obtained : Primary voltage : 205 V ; Secondary voltage : 115 V Primary current : 0.7 A ; Power input : 30 W. Find (i) The turns ratio (ii) the magnetizing current of no-load current (ii) Core loss current (iv) the iron loss. Turns ratio The magnetizing current of no-load current Core loss current Core loss

When conducting no-load test on a given single- phase transformer, the following test data were obtained : Primary voltage : 205 V ; Secondary voltage : 115 V Primary current : 0.7 A ; Power input : 30 W. Find (i) The turns ratio (ii) the magnetizing current of no-load current (ii) Core loss current (iv) the iron loss. Turns ratio The magnetizing current of no-load current Core loss current Core loss

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 3.9P

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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

When conducting no-load test on a given single-
phase transformer, the following test data
were obtained :
Primary voltage : 205 V ; Secondary voltage : 115 V
Primary current : 0.7 A ; Power input : 30 W.
Find (i) The turns ratio (ii) the magnetizing current
of no-load current (iii) Core loss current (iv) the
iron loss.
Turns ratio
The magnetizing current of no-load current
Core loss current
Core loss

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