학술논문
Comparison Between Insulated and NI Layer-Wound ReBCO Coils During Transients
Document Type
Periodical
Author
Source
IEEE Transactions on Applied Superconductivity IEEE Trans. Appl. Supercond. Applied Superconductivity, IEEE Transactions on. 34(5):1-6 Aug, 2024
Subject
Language
ISSN
1051-8223
1558-2515
2378-7074
1558-2515
2378-7074
Abstract
In this work, the results of a broad experimental investigation carried out on two layer-wound High Temperature Superconducting (HTS) coils are presented, adopting an experimental set-up that allows a consistent comparison between multiple configurations. To focus on a few design choices only, the coils are wound with the same geometry and using the same tape. One of the windings includes electrical insulation between layers, while the other does not. Moreover, since the proposed set-up allows feeding the layers separately, the latter can be connected either in series or in parallel. Thus, inductive and non-inductive combinations can be efficiently tested without the need to unwind or rewind the tape around the mandrel. The voltage signals acquired, and the corresponding ac losses, obtained during ac tests in liquid nitrogen are compared in different working conditions, providing qualitative explanations of the experimental data in the different winding combinations.