NDLI: Study of eddy-current loss reduction by slit in Reactor core

Content Provider	IEEE Xplore Digital Library
Author	Nogawa, S. Kuwata, M. Miyagi, D. Hayashi, T. Tounai, H. Nakau, T. Takahashi, N.
Copyright Year	1965
Abstract	Air-gapped iron-cores are widely used for power reactors. Eddy currents are induced in silicon steel sheets due to fringing flux, and this causes local overheating. In order to avoid local heating and to design reactors with high efficiency, the analysis and experiments for evaluating local losses in the core block of the reactor are necessary. In this paper, the modeling of laminated core for practical and accurate analysis is investigated. The number of elements can be reduced by classifying the analyzed region in terms of the amount of fringing flux penetration. The eddy-current losses due to fringing flux are examined using three-dimensional finite-element method and experiments. New concepts for optimal designing of slits are shown.
Sponsorship	IEEE Magnetics Society
Starting Page	2024
Ending Page	2027
Page Count	4
File Size	418170
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inductors Silicon Steel Eddy currents Heating Finite element methods Insulation Coatings Leg Power engineering and energy slit Eddy-current loss finite-element method reactor
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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