Conceptual design of high-Tc superconducting current leads for superconducting nuclear fusion magnets with respect to various HTS tapes

J. Y. Jang, K. S. Chang, Y. J. Kim, S. J. Choi, H. C. Jo, S. Y. Chu, T. K. Ko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Abstract: Superconducting current leads are indispensible for reducing power loss when subjecting current into superconducting magnets. HTS(High-Tc superconducting) current leads are divided into two types; one is bulk type and the other is tape type. In this paper, conceptual design on the HTS current leads which adopts tape type for nuclear fusion magnets is carried out using magnetic field analysis and thermal analysis. When large current flows through superconducting current leads, strong self magnetic field is generated and applied to the superconducting tapes. This phenomenon leads to the critical current decrease of the superconducting tape. Therefore, we analyzed magnetic field distribution of current leads and found the proper arrangement with respect to the various HTS tapes. In addition to the magnetic field analysis, heat leak through the current leads was also calculated to know which HTS tape is superior than others in thermal aspect. Magnetical field analysis and calculation of heat leak are performed to design 2 kA class HTS current leads.

Original languageEnglish
Pages (from-to)32-36
Number of pages5
JournalJournal of the Korea Institute of Applied Superconductivity and Cryogenics
Volume12
Issue number1
Publication statusPublished - 2010 Mar 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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