NDLI: AC Transport Loss of Coated Conductors in Anti-Parallel Arrangement

Content Provider	IEEE Xplore Digital Library
Author	Gomory, F. Souc, J. Vojenciak, M.
Copyright Year	2002
Abstract	AC loss in two stacked coated conductors (CC) carrying opposite currents was investigated by experiments and numerical simulations. This arrangement is a promising option in the design of fault current limiter (FCL) because the transport current loss could be significantly lower than in the self-field configuration of one single tape. The requirements of normal-state resistance indicate that in the particular CC tape developed for FCL application the metallic stabilizing layer should be less than ~10 μm. Considering the electric strength of up-to-date insulations this leads to ~100 μm distance between superconducting layers. Our study shows how sensitively depends the loss on this quantity. Even in the case of coated conductors prepared on ferromagnetic substrate a substantial reduction of the substrate loss can be achieved by putting the tapes in close proximity with superconducting layers facing each other from minimum distance. Another factor influencing the AC loss is the variation of critical current density across the tape width. Then the comparison of calculated and measured loss data allows to assess the tape quality in a non-destructive way.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	3307
Ending Page	3310
Page Count	4
File Size	450008
File Format	PDF
ISSN	10518223
Volume Number	21
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting films Substrates Superconducting epitaxial layers Magnetic hysteresis Superconducting magnets Conductors High temperature superconductors superconducting fault current limiter AC loss bifilar arrangement coated conductors
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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