Development and tests of a flexible superconducting bus-line for the Large Helical Device

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.305681· OSTI ID:33475

Mito, Toshiyuki; Yamada, Shuichi; Takahata, Kazuya ^[1]

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1. National Inst. for Fusion Science, Gifu (Japan); and others

A flexible superconducting bus-line is proposed as an electrical feeder between the superconducting coils of the Large Helical Device (LHD) and the device`s power supplies. The bus-line consists of superconducting cables and a cryogenic flexible transfer-line. A specially developed aluminum stabilized NbTi/Cu compacted strand cable satisfies requirements for large current capacity, high stability, high reliability and flexibility. A full-scale model with a length of 20 m was designed and constructed to investigate the feasibility and performance of the superconducting bus-line. Its fabrication, transportation, installation, cooling and excitation tests were successfully carried out. The bus-line was very stable and could be excited up to 40 kA (rated current is 30 kA) without a quench. The stability, current distribution, heat load were also measured.

• OSTI ID: 33475
• Report Number(s): CONF-930926--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 4Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CONDUCTOR DEVICES
COPPER
DESIGN
ENERGY EFFICIENCY
FUNCTIONAL MODELS
HELIOTRON
NIOBIUM ALLOYS
PERFORMANCE TESTING
POWER SUPPLIES
SUPERCONDUCTING CABLES
SUPERCONDUCTING COMPOSITES
SUPERCONDUCTING MAGNETS
TITANIUM ALLOYS