Current distribution in superconducting parallel conductors wound into pancake coils

M. Iwakuma, K. Nishimura, K. Kajikawa, K. Funaki, H. Hayashi, K. Tsutsumi, A. Tomioka, M. Konoo, S. Nose

Research output: Contribution to journalConference articlepeer-review

20 Citations (Scopus)


We made a preliminary investigation of the applicability of high-Tc superconducting parallel conductors to pancake coils. For the sake of a uniform current distribution and low ac loss, the constituent strands need to be transposed so as to be inductively equivalent with each other. We adopted an interdisk transposition where the strands are not transposed inside a single-pancake coil but only at the joint between the pancake coils. The fabrication process is simple. We have only to fabricate the same double-pancake coils and connect the strands individually with transposition outside the winding. We searched theoretically for the optimum transposition in the case of 3-strand and verified the theoretical result by using small test coils wound with NbTi 3-strand parallel conductors for convenience.

Original languageEnglish
Pages (from-to)861-864
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number1
Publication statusPublished - 2000
EventThe 16th International Conference on Magnet Tehnolopgy - Tallahassee, FL, USA
Duration: Sept 26 1999Oct 2 1999

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Current distribution in superconducting parallel conductors wound into pancake coils'. Together they form a unique fingerprint.

Cite this