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Preparation and Testing of Large Scale Epoxy Impregnated REBCO Coil for SMES

Authors :
Zheng Jun
Chen Wei
Peng Sisi
Xiao-Jun Niu
Guo Xianghua
Li Weiyong
Dai Yijun
Source :
IEEE Transactions on Applied Superconductivity. 31:1-4
Publication Year :
2021
Publisher :
Institute of Electrical and Electronics Engineers (IEEE), 2021.

Abstract

REBCO coil is a promising technology for superconducting magnetic energy storage system (SMES). Although degradation has been discovered in epoxy impregnated coil, it is essential to fill the coil with epoxy in such occasion. This paper describes preparation of large scale epoxy impregnated REBCO coil for SMES. The coil with inner diameter 320 mm and 268 turns was tested at 77 K both before and after epoxy impregnation. Consistency of Ic value and high n-value suggest that there was no degradation in the coil. Conduction cooled test was also carried out. Transport current was run up to 223 A at 50 K.

Details

ISSN :
23787074 and 10518223
Volume :
31
Database :
OpenAIRE
Journal :
IEEE Transactions on Applied Superconductivity
Accession number :
edsair.doi...........57b99b4936475f3b4578d2a1dcadeb30
Full Text :
https://doi.org/10.1109/tasc.2021.3094432