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Domestic Agency: ITER China Office (ITER China) in Beijing, China

Magnet feeders:

ITER's magnet feeders will relay electrical power, cryogenic fluids and instrumentation cables from outside the machine in to the superconducting magnets, crossing the warm/cold barrier of the machine. These complex systems are equipped with independent cryostats and thermal shields and packed with a large number of advanced technology components such as the high-temperature superconductor current leads, cryogenic valves, superconducting busbars, and high-voltage instrumentation hardware. They will be among the first components installed.

China is supplying all 31 feeders. The first feeder arrived in France in October; see the storywith photos and video here.

  • See additional photos here.
Correction coils:

The correction coils are ITER's smallest superconducting magnets. Weighing no more than 4.5 tons each, they are delicate by ITER standards, much thinner and lighter than the massive toroidal field and poloidal field magnets. Yet their role is vital: to fine-tune the magnetic fields to offset any imperfections in the position and geometry of the main magnets. 

China is producing these magnets. Eighteen superconducting correction coils will be distributed around the ITER Tokamak at three levels. Qualification activities are completed and production is underway on the first coils and cases. For details, see here and here.

Electrical conversion components

In addition to the steady state network that will supply electricity to buildings and auxiliary systems, ITER will operate a pulsed power electrical system (PPEN) to deliver power to the magnet coils and the heating and current drive systems during plasma pulses.

Earlier this year, China delivered the last of the PPEN voltage transformers (see more here) for the pulsed power electrical network (PPEN). In October, China delivered four 128-ton converter-transformers for the magnet power conversion system (see more here).