Experimental evaluation of the effect on AC loss of a polygonal arrangement in YBCO assembled conductors

J. Ogawa, S. Fukui, T. Oka, T. Sato, T. Ito, J. Sugisawa, A. Tamura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The AC transport current loss in a YBCO polygonal arranged assembled conductor depends on its arrangement. The azimuthal magnetic field produced by the currents in neighboring tapes affects the current distribution in each tape, and it is anticipated that the AC loss reduction effect is greatest with a round form. To clarify the AC loss characteristics in a polygonal arranged YBCO assembled conductor, we investigated the influence of tape distances and the angle number in the polygon. To evaluate distance, we measured the AC losses in a YBCO hexagonally assembled conductor which was arranged with distances ranging from 0.2 mm-4.0 mm. To evaluate polygonal shapes, we compared YBCO polygonal assembled conductors which were arranged as a square, pentagon, hexagon, octagon or decagon at a distance of 0.5 mm. The experimental results show that the AC loss reduction effect is greatest when the polygon is arranged as a round shape.

Original languageEnglish
Article number5613958
Pages (from-to)3285-3288
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume21
Issue number3 PART 3
DOIs
Publication statusPublished - 2011 Jun 1
Externally publishedYes

Keywords

  • AC transport current loss
  • Four-terminal method
  • Loss reduction effect
  • Polygonal assembled conductor
  • Superconducting transmission cable
  • YBCO

ASJC Scopus subject areas

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

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