Electrical Characteristics of Smart Insulation 2G HTS Coils Based on Three Fabrication Methods
- Authors
- 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
- Issue Date
- Aug-2019
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- 2GHTS coil; smart insulation method; V₂O₃ film; V₂O₃ paste
- Citation
- IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, v.29, no.5, pp.1 - 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
- Volume
- 29
- Number
- 5
- Start Page
- 1
- End Page
- 5
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/4542
- DOI
- 10.1109/TASC.2019.2900557
- ISSN
- 1051-8223
- 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. TheV(2)O(3) 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 2GHTS coils. These three types of SI 2G HTS coils are also discussed in terms of practical use.
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