DC magnetisation of transformers

Article

Ahfock, A. and Hewitt, A. J.. 2006. "DC magnetisation of transformers." IET Electric Power Applications. 153 (4), pp. 601-607.
Article Title

DC magnetisation of transformers

ERA Journal ID4573
Article CategoryArticle
AuthorsAhfock, A. (Author) and Hewitt, A. J. (Author)
Journal TitleIET Electric Power Applications
Journal Citation153 (4), pp. 601-607
Number of Pages7
Year2006
Place of PublicationLondon, UK
ISSN1350-2352
1751-8660
1751-8679
Web Address (URL)http://www.theiet.org/
Abstract

A high enough DC component in the current on the secondary side of a
transformer causes distortion of the primary side current. Prediction of such distortion
relies on the availability of magnetization curves that extend deep enough into saturation.
A simple test, carried out at rated voltage, is proposed which allows the magnetization curve to be deduced from measured data. In addition, a systematic procedure has been
developed to evaluate the primary current distortion in both single and three phase transformers. Comparison between theoretical predictions and practical measurements
are made with reasonable agreement between the two.

KeywordsDC injection, transformer saturation
ANZSRC Field of Research 2020400801. Circuits and systems
Public Notes

This paper is a postprint of a paper submitted to and accepted for publication in IEE Proceedings Electric Power Application and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.

Byline AffiliationsDepartment of Electrical, Electronic and Computer Engineering
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