Contribution of magnetostriction to transformer noise

Moses, Anthony John, Anderson, Philip Ian ORCID: https://orcid.org/0000-0001-6500-6583, Phophongviwat, Teeraphon ORCID: https://orcid.org/0000-0002-0634-3317 and Tabrizi, Shervin 2010. Contribution of magnetostriction to transformer noise. Presented at: 45th International Universities Power Engineering Conference (UPEC), Cardiff, UK, 31 August - 3 September 2010. 2010 45th International Universities Power Engineering Conference (UPEC 2010). London: Institute of Electrical and Electronics Engineers (IEEE), pp. 956-960.

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Abstract

An important source of transformer noise is magnetostrictive vibration of the magnetic core. This paper outlines some important effects of mechanical building stress on magnetostriction. Harmonic analysis of magnetostriction is necessary to quantify its influence on acoustic noise but it implied here that the most important magnetostrictive parameter has not yet been identified. A route is proposed for obtaining a definite, quantified relationship between defined magnetostrictive characteristics of core laminations and noise by systematically assessing noise and vibration modes of simple, small transformer cores.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Publisher:	Institute of Electrical and Electronics Engineers (IEEE)
ISBN:	9781424476671
Last Modified:	21 Oct 2022 10:18
URI:	https://orca.cardiff.ac.uk/id/eprint/39783

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