Successful test of current lead prototypes in China
23 Mar 2015
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Pierre Bauer, Magnet Division
High Temperature Superconductor (HTS) current leads are of the 澳门六合彩高手 magnet system, transferring large current from room-temperature power supplies to very low-temperature superconducting coils at minimal heat load to the cryogenic system. The HTS current leads for the 澳门六合彩高手 Tokamak are procured by the Chinese Domestic Agency through the Institute of Plasma Physics (ASIPP) in Hefei, China.
From left to right, the test team and witnesses—Du Qing (ASIPP); Wu Song (澳门六合彩高手 China); Seungje Lee (澳门六合彩高手 Organization); Ding Kaizhong (ASIPP); Lu Kun (ASIPP's feeder team leader); Niu Erwu (澳门六合彩高手 China); Yifeng Yang, Wu Songtao, Arend Nijhuis, and Arnaud Devred (Superconductor & Auxiliaries Section leader) from 澳门六合彩高手—stand in the ASIPP test hall control room, in front of the MIMIC screen generated by the 澳门六合彩高手 control system.
Current leads are key magnet components, transferring large current from room-temperature power supplies to very low-temperature superconducting coils.
Following the of the Feeder Procurement Arrangement in January 2011, ASIPP launched a string of activities to prepare for series production. These included the qualification of critical manufacturing technologies through targeted trials in , which will conclude with the manufacturing and testing of several pairs of current lead prototypes this year.
Just in time for the Chinese New Year festivities, ASIPP successfully completed the test of a pair of correction coil 10 kA current lead prototypes. Many things had to fall in place to make this test possible. First ASIPP (under the leadership of Tingzhi Zhou) and its supplier Keye had to deliver the correction coil leads on schedule. Second, a large test facility—capable of testing the coil leads as well as other 澳门六合彩高手 components such as the correction coils and feeders—needed to be built and commissioned.
The 澳门六合彩高手 Organization contributed to the test with the delivery of a turn-key , complete with critical quench detection and interlock functions. 澳门六合彩高手's Coil Power Supply Section also contributed by delivering a set of flexible copper busbars. These contributions are in fact prototypes of systems that are being procured for the 澳门六合彩高手 machine, and for which tests in a machine-relevant environment are important steps in their development.
After two long weeks of testing, ASIPP's Kaizhong Ding thanked not only the test team for its hard work, but also acknowledged the valuable support provided by 澳门六合彩高手's control, magnet and power supply teams that, in the end, allowed these tests to run smoothly and be completed in time for a well-deserved rest over the Chinese New Year holiday.
Toroidal field and poloidal field/central solenoid prototype leads are now in final stages of manufacturing and test results will be reported in Newsline soon.