Author/Authors :
Rummel، نويسنده , , K. and Czerwinski، نويسنده , , M. and Hurd، نويسنده , , F. and John، نويسنده , , A. and Lentz، نويسنده , , H. and Czymek، نويسنده , , G. and Giesen، نويسنده , , B. and Harberts، نويسنده , , F. and Egorov، نويسنده , , S.A. and Korsunsky، نويسنده , , V.E. and Rodin، نويسنده , , I.Y. and Bruzzone، نويسنده , , P. and Stepanov، نويسنده , , B. and Vogel، نويسنده , , M.، نويسنده ,
Abstract :
The superconducting fusion experiment WENDELSTEIN 7-X (W7-X) is presently under construction at the Greifswald branch of the Max-Planck-Institut für Plasmaphysik (IPP).
gnet system consists of 50 non-planar and 20 planar coils which are connected by 121 bus bars in series of 10 groups of seven coils each. The connection of the bus bars will be provided by 184 joints each with a maximum allowable resistance of 5 nΩ. The principle of such a joint was tested by two joints in SULTAN Test facility CRPP, Switzerland in 2003. Both joints showed resistances less than 1 nΩ at 25 kA in a magnetic field of 2 T. In the meantime efforts to modify the design of the casing and clamping parts for the serial production of joints have been carried out and tools for the installation at W7-X and mounting procedures were developed. The essential modifications and the latest test results at the SINTEZ of the Efremov Institute in St. Petersburg, Russia will be presented.
