Optimal arrangement of current leads to minimize electromagnetic force

J. H. Lee; J. B. Song; K. L. Kim; K. J. Kim; M. J. Kim; H. M. Chang; H. G. Lee

doi:10.1109/TASC.2010.2040956

Optimal arrangement of current leads to minimize electromagnetic force

J. H. Lee, J. B. Song, K. L. Kim, K. J. Kim, M. J. Kim, H. M. Chang, H. G. Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

An electric current produces a magnetic field around a current lead, which attracts or repels other current leads. The electromagnetic forces interacting between current leads show different tendencies according to the arrangement of the current leads on the top flange of the cryostat and the distances between them. In the case of high-current electric power devices or high-field magnets, the optimal arrangement of the current leads that can minimize the electromagnetic force acting on them is one of the safety issues to be considered. In this paper, the electromagnetic forces exerted on current leads were examined theoretically. The results were confirmed by measuring the strain variations of the current leads using a strain gauge to determine the influence of the electrical and geometrical parameters. From these results, the optimal arrangement method is discussed with three pairs of current leads particularly for high-current electric power devices or high-field magnet applications.

Original language	English
Article number	5422833
Pages (from-to)	1741-1746
Number of pages	6
Journal	IEEE Transactions on Applied Superconductivity
Volume	20
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2010.2040956
Publication status	Published - 2010 Jun

Keywords

Current lead
Electromagnetic force
High-current electrical power device
High-field magnet application

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Optimal arrangement of current leads to minimize electromagnetic force",

abstract = "An electric current produces a magnetic field around a current lead, which attracts or repels other current leads. The electromagnetic forces interacting between current leads show different tendencies according to the arrangement of the current leads on the top flange of the cryostat and the distances between them. In the case of high-current electric power devices or high-field magnets, the optimal arrangement of the current leads that can minimize the electromagnetic force acting on them is one of the safety issues to be considered. In this paper, the electromagnetic forces exerted on current leads were examined theoretically. The results were confirmed by measuring the strain variations of the current leads using a strain gauge to determine the influence of the electrical and geometrical parameters. From these results, the optimal arrangement method is discussed with three pairs of current leads particularly for high-current electric power devices or high-field magnet applications.",

keywords = "Current lead, Electromagnetic force, High-current electrical power device, High-field magnet application",

author = "Lee, {J. H.} and Song, {J. B.} and Kim, {K. L.} and Kim, {K. J.} and Kim, {M. J.} and Chang, {H. M.} and Lee, {H. G.}",

note = "Funding Information: Manuscript received October 20, 2009. First published March 01, 2010; current version published May 28, 2010. This work was supported by the Korea Science and Engineering Foundation (KOSEF) Grant funded by the Korea Government (MEST 2009-0085369), and by a Grant from the Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Education, Science and Technology, Korea. Copyright: Copyright 2010 Elsevier B.V., All rights reserved.",

year = "2010",

month = jun,

doi = "10.1109/TASC.2010.2040956",

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AU - Lee, J. H.

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AU - Kim, M. J.

AU - Chang, H. M.

AU - Lee, H. G.

N1 - Funding Information: Manuscript received October 20, 2009. First published March 01, 2010; current version published May 28, 2010. This work was supported by the Korea Science and Engineering Foundation (KOSEF) Grant funded by the Korea Government (MEST 2009-0085369), and by a Grant from the Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Education, Science and Technology, Korea. Copyright: Copyright 2010 Elsevier B.V., All rights reserved.

PY - 2010/6

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N2 - An electric current produces a magnetic field around a current lead, which attracts or repels other current leads. The electromagnetic forces interacting between current leads show different tendencies according to the arrangement of the current leads on the top flange of the cryostat and the distances between them. In the case of high-current electric power devices or high-field magnets, the optimal arrangement of the current leads that can minimize the electromagnetic force acting on them is one of the safety issues to be considered. In this paper, the electromagnetic forces exerted on current leads were examined theoretically. The results were confirmed by measuring the strain variations of the current leads using a strain gauge to determine the influence of the electrical and geometrical parameters. From these results, the optimal arrangement method is discussed with three pairs of current leads particularly for high-current electric power devices or high-field magnet applications.

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KW - High-field magnet application

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Optimal arrangement of current leads to minimize electromagnetic force

Abstract

Keywords

ASJC Scopus subject areas

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