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

doi:10.1109/TASC.2019.2900557

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 journal › Article › peer-review

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 language	English
Article number	4601505
Journal	IEEE Transactions on Applied Superconductivity
Volume	29
Issue number	5
DOIs	https://doi.org/10.1109/TASC.2019.2900557
Publication status	Published - Aug 1 2019

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

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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 journal › Article › peer-review

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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. ",

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AB - 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.

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