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

5 Citations (Scopus)

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 V₂O₃. The V₂O₃ material acts as an insulator when the temperature is lower than a certain value. Above this temperature, the V₂O₃ 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 V₂O₃ paste using V₂O₃ powder and three different methods for installing V₂O₃ 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 2019

Keywords

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

ASJC Scopus subject areas

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

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10.1109/TASC.2019.2900557

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title = "Electrical Characteristics of Smart Insulation 2G HTS Coils Based on Three Fabrication Methods",

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 V2O3. The V2O3 material acts as an insulator when the temperature is lower than a certain value. Above this temperature, the V2O3 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 V2O3 paste using V2O3 powder and three different methods for installing V2O3 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.",

keywords = "2G HTS coil, V2 O3 film, V2 O3 paste, smart insulation method",

author = "Jo, {Young Sik} and Kim, {Hyung Wook} and Sung, {Jung Hwan} and Kim, {Seog Whan} and Doohun Kim and Kim, {Ji Hyung} and Kim, {Ho Min} and Kim, {Seok Beom} and Lim, {Myung Seop}",

note = "Funding Information: Manuscript received October 30, 2018; accepted February 15, 2019. Date of publication February 20, 2019; date of current version March 22, 2019. This work was supported by the Korea Electrotechnology Research Institute (KERI) Primary Research Program through the National Research Council of Science and Technology (NST) funded by the Ministry of Science, ICT, and Future Planning (MSIP) under Grant 18-12-N0101-07. (Corresponding author: Young-Sik Jo.) Y. S. Jo, H. W. Kim, J. H. Sung, S. W. Kim, and D. Kim are with the Korea Electrotechnology Research Institute, Changwon 51543, South Korea (e-mail:, ysjo@keri.re.kr; khw3898@hotmail.com; swg9312@gmail.com; swkim@keri. re. kr; kdh0121@keri.re.kr). Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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AU - Jo, Young Sik

AU - Kim, Hyung Wook

AU - Sung, Jung Hwan

AU - Kim, Seog Whan

AU - Kim, Doohun

AU - Kim, Ji Hyung

AU - Kim, Ho Min

AU - Kim, Seok Beom

AU - Lim, Myung Seop

N1 - Funding Information: Manuscript received October 30, 2018; accepted February 15, 2019. Date of publication February 20, 2019; date of current version March 22, 2019. This work was supported by the Korea Electrotechnology Research Institute (KERI) Primary Research Program through the National Research Council of Science and Technology (NST) funded by the Ministry of Science, ICT, and Future Planning (MSIP) under Grant 18-12-N0101-07. (Corresponding author: Young-Sik Jo.) Y. S. Jo, H. W. Kim, J. H. Sung, S. W. Kim, and D. Kim are with the Korea Electrotechnology Research Institute, Changwon 51543, South Korea (e-mail:, ysjo@keri.re.kr; khw3898@hotmail.com; swg9312@gmail.com; swkim@keri. re. kr; kdh0121@keri.re.kr). Publisher Copyright: © 2002-2011 IEEE.

PY - 2019/8

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N2 - 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 V2O3. The V2O3 material acts as an insulator when the temperature is lower than a certain value. Above this temperature, the V2O3 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 V2O3 paste using V2O3 powder and three different methods for installing V2O3 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.

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 V2O3. The V2O3 material acts as an insulator when the temperature is lower than a certain value. Above this temperature, the V2O3 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 V2O3 paste using V2O3 powder and three different methods for installing V2O3 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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Electrical Characteristics of Smart Insulation 2G HTS Coils Based on Three Fabrication Methods

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Keywords

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