NDLI: Current Distribution Investigation of a Laboratory-Scale Coaxial Two-HTS-Layer DC Prototype Cable

Content Provider	IEEE Xplore Digital Library
Author	Zhenyu Zhang Jin-Geun Kim Chul Han Kim Pamidi, S. Jianwei Li Min Zhang Weijia Yuan
Copyright Year	2002
Abstract	A laboratory-scale dc HTS prototype cable has been built and tested. The cable consists of two layers of HTS YBCO tapes with lengths of 1 m. In order to investigate the current distribution among the two HTS layers, the dc measurement was first performed to the cable wound with only the inner HTS layer in advance of the measurement of the completed cable with both layers. The contact resistances relevant to each HTS layer obtained from the measurement are considered as constant parameters to obtain the current of each HTS layer. It turns out that the nonuniform current distribution among each layer in the dc condition mainly results from the contact resistance with operating current less than the cable critical current and tends to become uniform when the operating current increases toward the cable critical current. A modified 2-D H-formulation, which takes into account the voltage drop due to the joint parts of the cable termination, has been applied to simulate the current distribution of the cable. A good consistency is obtained between the experimental and numerical modeling results.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	5
Page Count	5
File Size	981105
File Format	PDF
ISSN	10518223
Volume Number	26
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2016-01-01
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 Power cables High-temperature superconductors Current distribution Contact resistance Electrical resistance measurement HTS prototype cable cable termination contact resistance current distribution H-formulation Cable termination
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Current Distribution Investigation of a Laboratory-Scale Coaxial Two-HTS-Layer DC Prototype Cable

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