Development of Westinghouse HTS Vapor-Cooled Current Leads
Application of ceramic high temperature superconductor (HTSC) to cryogenic current leads has successfully demonstrated the ability to significantly reduce the refrigeration requirements associated with current leads. Westinghouse Science & Technology Center has participated in this technology development from the very beginning and has now brought this technology into commercialization with a line of HTS (High Temperature Superconducting) vapor-cooled current leads products. In the process of developing this technology, we have performed design analysis; tested prospective HTSC of various composition and geometry from half a dozen vendors; developed designs of low resistance, high current capacity HTSC/copper contact joints; fabricated and extensively tested several current lead test models and prototypes; and performed application and cost/benefits analyses. These efforts, together with HTS current lead design parameters and performance data, are discussed.
KeywordsVoltage Drop Current Lead Heat Leak Copper Lead Lead Assembly
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