- Title
- Permeability and its influence on the broadband frequency response of a power transformer
- Creator
- Mitchell, Steven D.; Welsh, James S.
- Relation
- 2009 Asia-Pacific Power and Energy Engineering Conference. Proceedings of the 2009 Asia-Pacific Power and Energy Engineering Conference (Wuhan, China 28-31 March, 2009)
- Publisher Link
- http://dx.doi.org/10.1109/APPEEC.2009.4918596
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 2009
- Description
- This paper considers the effect of the complex permeability of a power transformer core for the full FRA test spectrum (typically less than 10 MHz). Current work in the area generally neglects the core beyond a few 100 kHz. This paper demonstrates that the relative complex permeability is significant at 1 MHz and above unity until frequencies beyond 15 MHz. The paper also demonstrates that for broadband small signal testing, such as FRA, the low field conditions induced by the injected signal result in a relative permeability that approaches the initial permeability of the core. This ensures that the relative permeability remains approximately constant over a large range of frequencies and will have a degree of independence with regards to the injection voltage source.
- Subject
- frequency response; permeability; power transformers
- Identifier
- http://hdl.handle.net/1959.13/918957
- Identifier
- uon:8745
- Identifier
- ISBN:9781424424870
- Rights
- Copyright © 2009 IEEE. Reprinted from the Proceedings of the 2009 Asia-Pacific Power and Energy Engineering Conference. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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