Quantitative evaluation of perpendicular-field losses in stacked high-Tc superconducting tapes

Kazuhiro Kajikawa, Motoaki Nishimura, Hiroyuki Moriyama, Masataka Iwakuma, Kazuo Funaki

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The influence of stacks of Bi-2223 multifilamentary tape-shaped wires without twisting on AC losses observed in an external magnetic field perpendicular to their wide faces is investigated. The perpendicular-field losses decrease with increasing number of tapes in the range of small field amplitudes. At larger amplitudes, on the other hand, the AC losses have little dependence on the stack number. This can be attributed to the effect of magnetic interaction between wires. By taking into account effective demagnetization factors on the basis of theoretical consideration, the perpendicular-field losses are plotted on a master curve for the maximum magnetic field applied to the wires. Furthermore, the perpendicular-field losses measured as a function of the field amplitude are well reproduced by the numerical evaluation of AC losses for a slab with infinitely wide surfaces.

Original languageEnglish
Pages (from-to)50-57
Number of pages8
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Issue number3
Publication statusPublished - Nov 30 2002

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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