Exploring the Effects of Partial Electrical Connectors on HTS Coils: A Case Study of Insulated Coil and Paraffin-Impregnated NI Coil
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Author(s)
Lee, Wooseung
Yang, Hongmin
Park, Dongkeun
Hwang, Young Jin
Im, Chaemin
Kim, Jaemin
Hahn, Seungyong
Lee, SangGap
Date Issued
December 2023
Journal
IEEE Transactions on Applied Superconductivity
Publisher
IEEE
Abstract
This study explores the influence of the Partial-Electrical-Connector (PEC) on High-Temperature Superconducting (HTS) coils. The PEC method emerges as a promising alternative to the conventional No-Insulation (NI) technique, establishing a direct current path between turns through partially soldered metal foils, such as copper, on the coil surface. This innovative approach achieves comparable performance to NI without necessitating a complete path between turns, offering advantages even in insulated or paraffin-impregnated coils. For the investigation, an insulated HTS coil and two NI HTS coils with paraffin impregnation are prepared. These coils undergo testing under overcurrent conditions, and their performance is compared with PEC-applied samples. The results demonstrate that coils with PEC application exhibit definitive current bypass characteristics. This finding highlights the potential of PEC to effectively create current bypass paths in both insulated and paraffin-impregnated coils.
Description
Submitted for publication in IEEE Transactions on Applied Superconductivity
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/TASC.2023.3347381
