Development of REBCO superconducting transformers with current limiting function

Tomoaki Tsutsumi, Akira Tomioka, Masataka Iwakuma, Hiroshi Okamoto, Yoshihiro Gosho, Hidemi Hayashi, Yasuhiro Iijima, Takashi Saito, Takeshi Ohkuma, Akihiko Tagomori, Teruo Izumi, Yuh Shiohara

研究成果: ジャーナルへの寄稿Conference article

抄録

RE1Ba2Cu3O7-δ(RE: Rare Earth, Y, Gd and so on, REBCO) superconducting tapes have high performance in critical current density, Jc, property even in high magnetic field and at liquid nitrogen temperature. We have proposed the ac loss reduction method of REBCO superconducting tape, which are the combination of a laser-scribing into a multifilamentary structure and a special winding process. Using the ac loss reduction technique, we could realize REBCO superconducting transformers with the advantage of light weight, compactness and high efficiency in comparison to conventional one. Further we aim to add a current limiting function to REBCO superconducting transformers. Recently we manufactured a 10kVA four-winding transformer with REBCO tapes. We carried out a sudden short circuit test and investigated the response against the fault excess current. We developed a numerical analysis program so as to quantitatively simulate the phenomena taking into account of a flux-flow resistance. As a result, it was shown that the whole of the REBCO winding did not shift to normal state even though the current exceeded the critical current all over the length. In this paper, we report the outlines.

元の言語英語
ページ(範囲)1115-1120
ページ数6
ジャーナルPhysics Procedia
36
DOI
出版物ステータス出版済み - 1 1 2012
イベントSuperconductivity Centennial Conference, SCC 2011 - The Hague, オランダ
継続期間: 9 18 20119 23 2011

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transformers
tapes
critical current
flow resistance
scoring
short circuits
void ratio
liquid nitrogen
numerical analysis
rare earth elements
current density
shift
magnetic fields
lasers
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Tsutsumi, T., Tomioka, A., Iwakuma, M., Okamoto, H., Gosho, Y., Hayashi, H., ... Shiohara, Y. (2012). Development of REBCO superconducting transformers with current limiting function. Physics Procedia, 36, 1115-1120. https://doi.org/10.1016/j.phpro.2012.06.186

Development of REBCO superconducting transformers with current limiting function. / Tsutsumi, Tomoaki; Tomioka, Akira; Iwakuma, Masataka; Okamoto, Hiroshi; Gosho, Yoshihiro; Hayashi, Hidemi; Iijima, Yasuhiro; Saito, Takashi; Ohkuma, Takeshi; Tagomori, Akihiko; Izumi, Teruo; Shiohara, Yuh.

:: Physics Procedia, 巻 36, 01.01.2012, p. 1115-1120.

研究成果: ジャーナルへの寄稿Conference article

Tsutsumi, T, Tomioka, A, Iwakuma, M, Okamoto, H, Gosho, Y, Hayashi, H, Iijima, Y, Saito, T, Ohkuma, T, Tagomori, A, Izumi, T & Shiohara, Y 2012, 'Development of REBCO superconducting transformers with current limiting function', Physics Procedia, 巻. 36, pp. 1115-1120. https://doi.org/10.1016/j.phpro.2012.06.186
Tsutsumi, Tomoaki ; Tomioka, Akira ; Iwakuma, Masataka ; Okamoto, Hiroshi ; Gosho, Yoshihiro ; Hayashi, Hidemi ; Iijima, Yasuhiro ; Saito, Takashi ; Ohkuma, Takeshi ; Tagomori, Akihiko ; Izumi, Teruo ; Shiohara, Yuh. / Development of REBCO superconducting transformers with current limiting function. :: Physics Procedia. 2012 ; 巻 36. pp. 1115-1120.
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