The superconducting busbar system of Wendelstein 7-X

Stache, K.; Kerl, F.; Sapper, J.; Sombach, B.; Wegener, L.

doi:10.1016/S0920-3796(03)00255-2

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The superconducting busbar system of Wendelstein 7-X

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Kerl, F.
Experimental Plasma Physics 2 (E2), Max Planck Institute for Plasma Physics, Max Planck Society;

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Wegener, L.
W7-X: Construction, Max Planck Institute for Plasma Physics, Max Planck Society;

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Citation

Stache, K., Kerl, F., Sapper, J., Sombach, B., & Wegener, L. (2003). The superconducting busbar system of Wendelstein 7-X. Fusion Engineering and Design, 66-68, 1119-1123. doi:10.1016/S0920-3796(03)00255-2.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-3F16-7

Abstract

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.