Quench Behavior of 2G HTS Coils With Polyimide Film and MIT Material Under Over Pulse-Current
- Resource Type
- Periodical
- Authors
- Hyeon, C.J.; Kim, J.H.; Quach, H.L.; Kim, H.; Kim, S.; Jo, Y.; Kim, H.M.
- Source
- IEEE Transactions on Applied Superconductivity IEEE Trans. Appl. Supercond. Applied Superconductivity, IEEE Transactions on. 28(4):1-6 Jun, 2018
- Subject
- Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
High-temperature superconductors
Coils
Thermal stability
Integrated circuits
Insulation
Voltage measurement
Thermal quenching
Metal–insulator transition material
over pulse- current
quench behavior
second-generation high-temperature superconductor
- Language
- ISSN
- 1051-8223
1558-2515
2378-7074
This paper presents the quench behavior of second-generation (2G) high-temperature superconducting (HTS) coil insulated with a Kapton polyimide film or metal–insulator transition (MIT) materials, which could enhance the thermal stability and magnetic field-control performance of a 2G HTS magnet. For the quench test, overcurrent experiments using pulse-current shooting were conducted to investigate the thermal quench behavior and thermal stabilities of two HTS coils co-wound by polyimide or MIT materials against a large overcurrent pulse. The experimental results of the two insulation materials were compared to verify the superior thermal performance of the MIT material as the turn-to-turn insulation. Further, the applicability of the MIT material on a 2G HTS magnet system was discussed according to the experimental results.