NDLI: Welded splice design in a mid-size superconducting magnetic energy storage system

Content Provider	IEEE Xplore Digital Library
Author	Wei Tong
Copyright Year	2002
Abstract	The splice design is one of the most important issues in the design of a superconducting magnetic energy storage (SMES) system. A welded splice is made by overlapping two sheath-free stabilized conductors and welding at the sides of the contact interface. To achieve the ultimate goal in the SMES reliability, one of the primary concerns is the electrical resistance across welded joints though high-purity aluminum (HPA) stabilizers. Highly resistive welds could lead to conductor instability. This paper addresses the splice design for a 30 MW, 1800 MJ mid-size SMES system. The splices are required to transmit current at the level of 16,000 A under the normal operating conditions. Gas-tungsten arc welding has been chosen its the joining method for its high reliability, high quality, low distortion and low cost. The welding setup and welding parameters mere determined for the present splice design. Other design issues such as the splice protection, support and cooling, have been also addressed.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	977
Ending Page	980
Page Count	4
File Size	465821
File Format	PDF
ISSN	10518223
Volume Number	7
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Welding Superconducting magnets Superconducting magnetic energy storage Samarium Conductors Contacts Electric resistance Aluminum Costs Protection
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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