The short-circuit test results of 6.9 kV/2.3 kV 400 kVA-class YBCO model transformer with fault current limiting function

A. Tomioka, T. Bohno, S. Kakami, M. Isozaki, K. Watanabe, K. Toyama, S. Sugiyama, M. Konno, Y. Gosho, H. Okamoto, H. Hayashi, T. Tsutsumi, Masataka Iwakuma, T. Saito, K. Tanabe, Y. Shiohara

研究成果: Contribution to journalArticle

7 引用 (Scopus)

抜粋

We are developing an elemental technology for 66/6.9 kV 20 MVA-class superconducting power transformer with fault current limiting function. In order to obtain the characteristics of YBCO conductor when the AC over current supplied to the conductor, the model coils were manufactured with YBCO tapes and tested. Based on these results, we manufactured the 6.9 kV/2.3 kV 400 kVA-class YBCO model transformer with fault current limiting function and performed short-circuit test. At the 0.25 s after short-circuit, the short-circuit current of primary winding was limited to about 174 A for a prospective current of 559 A. It was consistent with the design. The I-V characteristics of the winding did not change before and after the test. We consider the model transformer to be able to withstand AC over-current with the function of current limiting. The results suggest the possibility to design YBCO superconducting transformers with fault current limiting function for practical power grid.

元の言語英語
ページ(範囲)239-241
ページ数3
ジャーナルPhysica C: Superconductivity and its applications
484
DOI
出版物ステータス出版済み - 1 15 2013

All Science Journal Classification (ASJC) codes

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

フィンガープリント The short-circuit test results of 6.9 kV/2.3 kV 400 kVA-class YBCO model transformer with fault current limiting function' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Tomioka, A., Bohno, T., Kakami, S., Isozaki, M., Watanabe, K., Toyama, K., Sugiyama, S., Konno, M., Gosho, Y., Okamoto, H., Hayashi, H., Tsutsumi, T., Iwakuma, M., Saito, T., Tanabe, K., & Shiohara, Y. (2013). The short-circuit test results of 6.9 kV/2.3 kV 400 kVA-class YBCO model transformer with fault current limiting function. Physica C: Superconductivity and its applications, 484, 239-241. https://doi.org/10.1016/j.physc.2012.02.035