DC magnetisation of transformers

Ahfock, A. and Hewitt, A. J. (2006) DC magnetisation of transformers. IET Electric Power Applications, 153 (4). pp. 601-607. ISSN 1350-2352


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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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: 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.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering
Date Deposited: 11 Oct 2007 00:59
Last Modified: 02 Jul 2013 22:42
Uncontrolled Keywords: DC injection, transformer saturation
Fields of Research : 09 Engineering > 0906 Electrical and Electronic Engineering > 090601 Circuits and Systems
URI: http://eprints.usq.edu.au/id/eprint/2190

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