Development of a 30-kA cable-in-conduit conductor for pulsed poloidal coils

Journal Article · Sun May 01 04:00:00 EDT 1983 · IEEE Trans. Magn.; (United States)

DOI:https://doi.org/10.1109/TMAG.1983.1062430· OSTI ID:5398456

Takashi, Y; Dresner, L; Kato, T; Nishi, M; Okuno, K; Sanada, Y; Tada, E; Tsuji, H

This paper describes design parameters of a 30-kA cable-in-conduit conductor (JF-30), and the test results of stability margin measured by using a triplex in a conduit. Cross sectional size of JF-30 is 35mm X 35 mm and 567 NbTi-Cu-CuNi strands are in a stainless steel conduit whose thickness is 2 mm. Void fraction is 33 % and the designed stability margin is 270 mJ/cc at 5 atm and 7 T. Stability test by a triplex showed a favorable margin, a few hundreds of mJ at 7 T even without helium flow. In addition, the stability was strongly increased when helium flow up to 0.2 g/s was applied. At around 3 atm, the authors found that the stability margin was more than 2 J/cc which exceeded the present heater capacity. This resulted in an extension of current range, in which the sample is stable, up to 150 to 200 % when compared to the case without helium flow.

• Research Organization: Japan Atomic Energy Research Instit., Tokai-mura, Ibaraki-Ken 319-11
• OSTI ID: 5398456
• Journal Information: IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. 19:3; ISSN IEMGA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONDUCTOR DEVICES
COPPER
DESIGN
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTS
EQUIPMENT
FLUIDS
GASES
HELIUM
MAGNET COILS
MAGNETS
METALS
NICKEL
NIOBIUM COMPOUNDS
NONMETALS
RARE GASES
STABILITY
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
TESTING
TITANIUM
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS