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

doi:10.1109/TASC.2019.2901894

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 journal › Article › peer-review

8 Citations (Scopus)

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 language	English
Article number	8663311
Journal	IEEE Transactions on Applied Superconductivity
Volume	29
Issue number	5
DOIs	https://doi.org/10.1109/TASC.2019.2901894
Publication status	Published - Aug 1 2019
Externally published	Yes

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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10.1109/TASC.2019.2901894

Cite this

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title = "Recovery Characteristics of GdBCO Tape in a Pressurized Liquid Nitrogen for a Resistive SFCL",

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.",

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T1 - Recovery Characteristics of GdBCO Tape in a Pressurized Liquid Nitrogen for a Resistive SFCL

AU - Maeda, Chihiro

AU - Yanai, Sota

AU - Shirai, Yasuyuki

AU - Shiotsu, Masahiro

AU - Honda, Genki

AU - Isojima, Shigeki

PY - 2019/8/1

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AB - 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.

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

Abstract

Keywords

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