Over-current characteristics of model coil using Y-based multi-filament wire for superconducting power transformers

H. Okamoto, H. Hayashi, Masataka Iwakuma, A. Tomioka, T. Saito, Y. Gosho, K. Tanabe, Y. Shiohara

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In the Japanese national project to develop superconducting power applications using Y-based coated conductors, the present focus is on various aspects of technological development of superconducting power transformers. Since Y-based multi-filament wire contributes to reduction in AC loss of superconducting transformer coils, a 5 mm-wide long-length multi-filament, between the filaments of 3 and 5, has been developing by a laser scribing method. In the case of the project target, a 66 kV/20 MVA power transformer coils require a Y-based multi-filament wire between the lengths of 200 m and 300 m. It also must withstand over-current of about seven times the rated current, which is generated when a power system fault occurs. In this paper, over-current characteristics of model coil using Y-based 3-filament wire were evaluated.

Original languageEnglish
Pages (from-to)1379-1380
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume471
Issue number21-22
DOIs
Publication statusPublished - Nov 1 2011

All Science Journal Classification (ASJC) codes

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

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