Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9638235 | Fusion Engineering and Design | 2005 | 7 Pages |
Abstract
The ITER superconducting magnet system generates an average heat load of 23Â kW at 4Â K to the cryoplant, from nuclear and thermal radiation, conduction and electromagnetic heating, and requires current supplies 10-68Â kA to 48 individual coils. The helium flow to remove this heat, consisting of supercritical helium at pressures up to 1.0Â MPa and temperature between 4.3 and 4.7Â K, is distributed to the coils and structures through 30 separate feeder lines. The feeders also contain the electrical supplies to the coil, helium supply pipes and the instrumentation lines, and are integrated with the current lead transitions to room temperature. The components consist of the in-cryostat feeders, the cryostat feedthroughs and the coil terminal boxes (CTBs). This paper discusses the functional requirements on the feeder system and presents the latest design concept and parameters of the feeder components.
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Authors
K. Yoshida, Y. Takahashi, T. Isono, N. Mitchell,