NDLI: Analysis of AC Losses in a Tri-axial Superconducting Cable

Content Provider	IEEE Xplore Digital Library
Author	Hamajima, T. Tsuda, M. Yagai, T. Monma, S. Satoh, H. Shimoyama, K.
Copyright Year	2002
Abstract	High temperature superconducting (HTS) cables have been studied because of low loss and compactness, compared with conventional copper cables. Three-phase cables are usually composed of three single-phase concentric cables. Recently, a tri-axial cable, composed of three concentric phases, has been intensively developed, because it has advantages such as reduced amount of HTS tapes, low leakage fields, low heat leak and compactness, compared with the three single-phase cables. We analysed the three-phase current distributions in the tri-axial cable as functions of winding pitches of three concentric phase layers, and showed the balanced three-phase current distributions in the tri-axial cable. The each layer supplies a transport current under external magnetic field with the same frequency and different phase. We formulate the general form of AC loss of the transport current in combination with the external field with different phase, and analyse the AC loss of the tri-axial cable.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1692
Ending Page	1695
Page Count	4
File Size	308508
File Format	PDF
ISSN	10518223
Volume Number	17
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-01
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 cables High temperature superconductors Coaxial cables Superconducting films Slabs Magnetic analysis Superconducting epitaxial layers Copper Current distribution Current supplies tri-axial cable AC loss analysis azimuthal and axial fields balanced three phase currents external out-of-phase field HTS
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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