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Experimental study on inter-laminar short-circuit faults at random positions in laminated magnetic cores

Hamzehbahmani, Hamed; Jenkins, Keith; Anderson, Philip; Lindenmo, Magnus

Experimental study on inter-laminar short-circuit faults at random positions in laminated magnetic cores Thumbnail


Authors

Hamed Hamzehbahmani

Keith Jenkins

Philip Anderson

Magnus Lindenmo



Contributors

Abstract

Inter-laminar short-circuit faults between the laminations of electrical machines, and other magnetic devices, have been one of the major challenges for the suppliers and customers of electrical steels. Extra power losses caused by inter-laminar faults depend on many factors including the location of the fault points. In this study, fundamental definitions and concepts of inter-laminar short-circuit faults, effect of inter-laminar faults on configuration of the magnetic cores and FEM verification are presented. Experimental works were performed to study the effect of inter-laminar faults with different configurations on the total power loss to distinguish and locate the critical and destructive faults. In the relevant studies, artificial short circuits of different configurations were applied between laminations of packs of four Epstein size laminations of 3% grain oriented silicon steel. Extra power losses caused by the inter-laminar faults were measured and the results were analysed.

Citation

Hamzehbahmani, H., Jenkins, K., Anderson, P., & Lindenmo, M. (2016). Experimental study on inter-laminar short-circuit faults at random positions in laminated magnetic cores. IET Electric Power Applications, 10(7), 604-613. https://doi.org/10.1049/iet-epa.2015.0585

Journal Article Type Article
Acceptance Date Mar 10, 2016
Online Publication Date Jul 25, 2016
Publication Date Jul 25, 2016
Deposit Date Aug 13, 2018
Publicly Available Date Feb 5, 2019
Journal IET Electric Power Applications
Print ISSN 1751-8660
Electronic ISSN 1751-8679
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 10
Issue 7
Pages 604-613
DOI https://doi.org/10.1049/iet-epa.2015.0585

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Accepted Journal Article (1.9 Mb)
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Copyright Statement
This paper is a postprint of a paper submitted to and accepted for publication in IET electric power applications and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.




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