Recovery Characteristics of GdBCO Tape in a Pressurized Liquid Nitrogen for a Resistive SFCL

Chihiro Maeda, Sota Yanai, Yasuyuki Shirai, Masahiro Shiotsu, Genki Honda, Shigeki Isojima

Research output: Contribution to journalArticle

Abstract

Superconducting fault current limiters (SFCLs) are required to recover to the superconducting state as quickly as possible after limiting the fault current. It is important for the quick recovery to improve the cooling property of a superconducting tape. The boiling phenomena of liquid nitrogen on the surface of a superconducting tape have large influence on its cooling property. In this paper, we used GdBCO tapes for the resistive SFCL and investigated the effect of applying pressure for improvement of its recovery characteristics. In addition, we observed the difference of the boiling phenomena on the surface of GdBCO tapes between under pressurized condition and under ambient pressure by a high-speed video camera.

Original languageEnglish
Article number8663311
JournalIEEE Transactions on Applied Superconductivity
Volume29
Issue number5
DOIs
Publication statusPublished - Aug 1 2019
Externally publishedYes

Keywords

  • direct transition
  • fault current limiter
  • Liquid nitrogen
  • pressure effect
  • recovery time

ASJC Scopus subject areas

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

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