Fabrication of superconducting traction transformer for railway rolling stock

H. Kamijo, H. Hata, H. Fujimoto, A. Inoue, K. Nagashima, K. Ikeda, H. Yamada, Y. Sanuki, A. Tomioka, K. Uwamori, Shigeru Yoshida, Masataka Iwakuma, K. Funaki

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We designed a floor type single-phase 4 MVA superconducting traction transformer for Shinkansen rolling stock. In this study, we fabricated a prototype superconducting traction transformer based on this design. This transformer of the core-type design has a primary winding, four secondary windings and a tertiary winding. The windings are wound by Bi2223 superconducting tapes and cooled by subcooled liquid nitrogen. The core is kept at room temperature. The cryostat is made of GFRP with two holes to pass core legs through. The outer dimensions are about 1.2m × 0.7m × 1.9m excluding the compressor. Its weight is 1.71t excluding that of refrigerator and compressor. The transformer was tested according to Japanese Industrial Standards (JIS)-E5007. We confirmed that the performance of transformer has been achieved almost exactly as planned. The rated capacity is equivalent to 3.5MVA in the superconducting state.

Original languageEnglish
Article number205
Pages (from-to)841-844
Number of pages4
JournalJournal of Physics: Conference Series
Volume43
Issue number1
DOIs
Publication statusPublished - Jun 1 2006

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traction
transformers
fabrication
compressors
refrigerators
cryostats
liquid nitrogen
tapes
prototypes
room temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Kamijo, H., Hata, H., Fujimoto, H., Inoue, A., Nagashima, K., Ikeda, K., ... Funaki, K. (2006). Fabrication of superconducting traction transformer for railway rolling stock. Journal of Physics: Conference Series, 43(1), 841-844. [205]. https://doi.org/10.1088/1742-6596/43/1/205

Fabrication of superconducting traction transformer for railway rolling stock. / Kamijo, H.; Hata, H.; Fujimoto, H.; Inoue, A.; Nagashima, K.; Ikeda, K.; Yamada, H.; Sanuki, Y.; Tomioka, A.; Uwamori, K.; Yoshida, Shigeru; Iwakuma, Masataka; Funaki, K.

In: Journal of Physics: Conference Series, Vol. 43, No. 1, 205, 01.06.2006, p. 841-844.

Research output: Contribution to journalArticle

Kamijo, H, Hata, H, Fujimoto, H, Inoue, A, Nagashima, K, Ikeda, K, Yamada, H, Sanuki, Y, Tomioka, A, Uwamori, K, Yoshida, S, Iwakuma, M & Funaki, K 2006, 'Fabrication of superconducting traction transformer for railway rolling stock', Journal of Physics: Conference Series, vol. 43, no. 1, 205, pp. 841-844. https://doi.org/10.1088/1742-6596/43/1/205
Kamijo, H. ; Hata, H. ; Fujimoto, H. ; Inoue, A. ; Nagashima, K. ; Ikeda, K. ; Yamada, H. ; Sanuki, Y. ; Tomioka, A. ; Uwamori, K. ; Yoshida, Shigeru ; Iwakuma, Masataka ; Funaki, K. / Fabrication of superconducting traction transformer for railway rolling stock. In: Journal of Physics: Conference Series. 2006 ; Vol. 43, No. 1. pp. 841-844.
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