Modeling of Butt Joint Composed of Nb3Sn Cable-In-Conduit Conductors

To evaluate butt joint fabrication technology of Nb3Sn cable-in-conduit (CIC) conductors, joint resistance and quench current were measured using a joint sample developed for the JT-60SA central solenoid (CS) coil. The measurements indicate that the butt joint fulfilled the design requirements. To s...

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Bibliographic Details
Published in:Plasma and Fusion Research 2014/07/29, Vol.9, pp.3405122-3405122
Main Authors: OBANA, Tetsuhiro, TAKAHATA, Kazuya, HAMAGUCHI, Shinji, NATSUME, Kyohei, IMAGAWA, Shinsaku, MITO, Toshiyuki, KIZU, Kaname, MURAKAMI, Haruyuki, YOSHIDA, Kiyoshi
Format: Article
Language:English
Subjects:
butt joint
cable-in-conduit conductor
joint resistance
JT-60SA
Nb3Sn
quench current
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Summary:To evaluate butt joint fabrication technology of Nb3Sn cable-in-conduit (CIC) conductors, joint resistance and quench current were measured using a joint sample developed for the JT-60SA central solenoid (CS) coil. The measurements indicate that the butt joint fulfilled the design requirements. To simulate the butt joint characteristics, a one-dimensional numerical model simplifying the butt joint configuration was developed. Using the model, joint resistance and quench current of the butt joint were calculated. The calculations were in good agreement with the measurements. As a result, the model is valid for butt joint simulations.
ISSN:1880-6821
1880-6821
DOI:10.1585/pfr.9.3405122