The superconducting busbar system of Wendelstein 7-X

The superconducting magnet system of the stellarator Wendelstein 7-X (W7-X) consists of 50 non-planar and 20 planar coils grouped in five periodic modules. Ten coils of a given type of non-planar and planar coils will always be connected electrically in series with nominal currents ranging up to 18...

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Bibliographic Details
Published in:Fusion engineering and design 2003-09, Vol.66, p.1119-1123
Main Authors: Stache, Kerstin, Kerl, F., Sapper, J., Sombach, B., Wegener, L.
Format: Article
Language:English
Subjects:
Applied sciences
Busbars
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Installations for energy generation and conversion: thermal and electrical energy
Joints
Superconducting coils
Wendelstein 7-X
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Summary:The superconducting magnet system of the stellarator Wendelstein 7-X (W7-X) consists of 50 non-planar and 20 planar coils grouped in five periodic modules. Ten coils of a given type of non-planar and planar coils will always be connected electrically in series with nominal currents ranging up to 18 kA. Because of the 5-fold symmetry five busbar systems are to be routed. Electrical connection of the busbar system will require 184 disconnectable joints with a resistance below 5 nΩ. The paper describes the design features of the busbar systems and their installation in the stellarator. Requirements for the design and qualification of the disconnectable joints will be pointed out.
ISSN:0920-3796
1873-7196
DOI:10.1016/S0920-3796(03)00255-2