Q1: During the separation of transformer core losses experiment:1. Why should always keep the ratio of V/F constant?2. If the transformer is operated at rated frequency but at voltage lower than rated value, howdo you expect the following quantities to change? And why?i.Hysteresis lossii.Eddy current lossiii.No-load current

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Engineering

Electrical Engineering

transformer

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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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

Q1: During the separation of transformer core losses experiment:
1. Why should always keep the ratio of V/F constant?
2. If the transformer is operated at rated frequency but at voltage lower than rated value, how
do you expect the following quantities to change? And why?
i.
Hysteresis loss
ii.
Eddy current loss
iii.
No-load current

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Q1: During the separation of transformer core losses experiment: 1. Why should always keep the ratio of V/F constant? 2. If the transformer is operated at rated frequency but at voltage lower than rated value, how do you expect the following quantities to change? And why? i. Hysteresis loss ii. Eddy current loss iii. No-load current rotod