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Article Dans Une Revue IEEE Transactions on Applied Superconductivity Année : 2024

Metal-as-Insulation REBCO Insert: Simplified Protection Scheme and Investigation of Cooling Defect Under High-Field Operation

Résumé

A refurbished metal-as-insulation (MI) HTS insert comprised of DP coils with replaced inner joints was charged under various magnetic field (Bext) from 0 to 18 T at 4.2 K for testing. However, the refurbished insert could not be charged up to its maximum field, because the cryogenic condition tended to be unstable with a high helium boiling rate above 28 T. Therefore, to investigate the cooling issue, four Cernox sensors were installed in refurbished insert. The temperature of each position while powering the insert was measured under various Bext. In addition, we qualified a new simplified protection scheme without the usual detection and dump circuit during a quench at Bext = 9 T of the insert. Detailed experimental results about charging and quenching tests of the insert are presented and discussed in this paper.
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Année Mois Jours
Avant la publication
jeudi 25 juillet 2024

Dates et versions

hal-04416168 , version 1 (25-01-2024)

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Citer

Jung-Bin Song, Xavier Chaud, François Debray, Steffen Krämer, Simon Bagnis, et al.. Metal-as-Insulation REBCO Insert: Simplified Protection Scheme and Investigation of Cooling Defect Under High-Field Operation. IEEE Transactions on Applied Superconductivity, 2024, 34 (5), pp.1-5, 4702405. ⟨10.1109/TASC.2024.3357474⟩. ⟨hal-04416168⟩
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