August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Overview of JT-60SA HTS current lead manufacture and testing

Aug 28, 2017, 1:15 PM
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m F7 - Current Leads, Links, and Bus Bars Mon-Af-Po1.09


Reinhard Heller (Karlsruhe Institute of Technology)


The Karlsruhe Institute of Technology (KIT) agreed to construct and test the High Temperature Superconductor Current Leads (HTS-CL) for the tokamak JT-60SA presently under construction in the frame of the Broader Approach agreement between Europe and Japan. In total 6 HTS-CLs for 25.7 kA for the TF coils and 20 HTS-CLs for 20 kA for the PF and CS coils are required and all of them have to be tested at operating temperatures in the test facility CuLTKa at KIT. The manufacturing started in 2014 and the last current leads will be tested in July 2017. The main parts of the acceptance test are the determination of the heat load at 4.5 K, the 50 K He mass flow rate through the heat exchanger, and the simulation of a loss of flow accident. One test of the PF current leads includes a pulse test at 20 kA to demonstrate their PF operation capability.
In the present paper an overview of the manufacture and the acceptance tests of the HTS current lead is given. The results for the different current leads are summarized and compared to the specifications showing a good and reproducible performance.

Submitters Country Germany

Primary authors

Reinhard Heller (Karlsruhe Institute of Technology) Dr Walter Fietz (Karlsruhe Institute of Technology) Mathias Heiduk (Karlsruhe Institute of Technology) Markus Hollik (Karlsruhe Institute of Technology) Andreas Kienzler (Karlsruhe Institute of Technology) Christian Lange (Karlsruhe Institute of Technology) Dr Ralph Lietzow (Karlsruhe Institute of Technology) Ingeborg Meyer (Karlsruhe Institute of Technology) Thomas Richter (Karlsruhe Institute of Technology)

Presentation materials