Magnetization Losses of Roebel Cable Samples with 2G YBCO Coated Conductor Strands

Y. Yang*, J. Pelegrin, I. Falorio, E. A. Young, A. Kario, W. Goldacker, M. M.J. Dhalle, J. Van Nugteren, G. Kirby, L. Bottura, A. Ballarino

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Abstract

Roebel cable with second-generation YBCO strands is one of the promising higherature superconducting solutions of fully transposed high current conductors for high field accelerator magnets. Following the considerable research effort on the manufacturing of Roebel cables in recent years, sample conductors are now available in useful lengths with reproducible performances to allow for detailed characterizations beyond the standard critical current measurements. The ac loss and strands coupling are of significant interest for the field quality of the accelerator magnets. We report a set of systematic ac loss measurements on two different Roebel cable samples prepared for the EuCARD-2 collaboration. The measurements were performed over a wide range of temperature values between 5 and 90 K, and the results were analyzed in the context of strands architecture and coupling. The results show that the transposed bundles are partially decoupled, and the strands in transposition sections behave as an isolated single tape if the strands are insulated.

Original languageEnglish
Article number8202105
Number of pages5
JournalIEEE transactions on applied superconductivity
Volume26
Issue number3
DOIs
Publication statusPublished - 1 Apr 2016

Keywords

  • AC loss measurements
  • accelerator magnets
  • HTS
  • magnetization
  • ReBCO
  • Roebel cable

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