Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/64841
Title: Low-frequency magnetic shielding against unbalanced currents
Authors: Du, Y 
Chen, M 
Keywords: Power frequency
Magnetic field
Shielding
Plate
Issue Date: 2015
Publisher: Institute of Electrical and Electronics Engineers
Source: 2015 7th Asia-Pacific Conference on Environmental Electromagnetics (CEEM), Hangzhou, China, 4-7 Nov 2015, p. 299-303 How to cite?
Abstract: Magnetic shielding is an effective means to reduce low-frequency magnetic fields emitted from power cables and busbars. However, shielding against unbalanced currents has not been addressed well. This paper introduces equivalent magnetic dipoles for discussing magnetic shielding under a monopole current source. It is found that shielding is achieved by the cancellation of magnetic fields from both equivalent dipoles and the source monopole. However, the performance is not satisfactory because of a fast decaying rate of distance in the equivalent dipoles. To improve shielding performance under an unbalanced current source, it is recommended using either highly-permeable plates or multiple highly-conductive and electrically-connected plates.
URI: http://hdl.handle.net/10397/64841
ISBN: 978-1-4673-9445-1 (electronic)
978-1-4673-9444-4 (print)
978-1-4673-9443-7 (DVD)
978-1-4673-9446-8 (print on demand(PoD))
DOI: 10.1109/CEEM.2015.7368690
Appears in Collections:Conference Paper

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