Electrical Characteristics of Smart Insulation 2G HTS Coils Based on Three Fabrication Methods

Young Sik Jo, Hyung Wook Kim, Jung Hwan Sung, Seog Whan Kim, Doohun Kim, Ji Hyung Kim, Ho Min Kim, Seok Beom Kim, Myung Seop Lim

Research output: Contribution to journalArticle

Abstract

This paper describes a technique for building smart insulation (SI) 2G high temperature superconductor (HTS) coils and investigates their electrical characteristics. The SI method utilizes the metal-insulated transition properties of V 2 O 3 . The V 2 O 3 material acts as an insulator when the temperature is lower than a certain value. Above this temperature, the V 2 O 3 material becomes a conductor. This transition can be used as a temperature switch between the turns of the 2G HTS magnets. The SI method is used to satisfy both the stability and charging/discharging time constant requirements of 2G HTS coils. We explain in detail how to make V 2 O 3 paste using V 2 O 3 powder and three different methods for installing V 2 O 3 paste between the turns of the 2G HTS coil, which results in three different types of SI 2G HTS coils. These three types of SI 2G HTS coils are also discussed in terms of practical use.

Original languageEnglish
Article number4601505
JournalIEEE Transactions on Applied Superconductivity
Volume29
Issue number5
DOIs
Publication statusPublished - Aug 1 2019

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High temperature superconductors
high temperature superconductors
insulation
Insulation
coils
Fabrication
fabrication
Ointments
Intelligent buildings
Powders
Temperature
time constant
installing
Magnets
charging
magnets
switches
conductors
Metals
Switches

Keywords

  • 2G HTS coil
  • smart insulation method
  • V2 O3 film
  • V2 O3 paste

ASJC Scopus subject areas

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

Cite this

Electrical Characteristics of Smart Insulation 2G HTS Coils Based on Three Fabrication Methods. / Jo, Young Sik; Kim, Hyung Wook; Sung, Jung Hwan; Kim, Seog Whan; Kim, Doohun; Kim, Ji Hyung; Kim, Ho Min; Kim, Seok Beom; Lim, Myung Seop.

In: IEEE Transactions on Applied Superconductivity, Vol. 29, No. 5, 4601505, 01.08.2019.

Research output: Contribution to journalArticle

Jo, Young Sik ; Kim, Hyung Wook ; Sung, Jung Hwan ; Kim, Seog Whan ; Kim, Doohun ; Kim, Ji Hyung ; Kim, Ho Min ; Kim, Seok Beom ; Lim, Myung Seop. / Electrical Characteristics of Smart Insulation 2G HTS Coils Based on Three Fabrication Methods. In: IEEE Transactions on Applied Superconductivity. 2019 ; Vol. 29, No. 5.
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