Ground Insulation Completed on First Central Solenoid Module
Ground insulation ensures that each module is isolated from a potential fault of up to 30,000 volts from other systems and components in the ITER cryostat.
Central Solenoid
The US is responsible for 100% of the central solenoid (CS) magnet, including design, R&D, fabrication of 7 CS modules using supplied conductor (from Japan), associated structure, assembly tooling, bus extensions, and cooling connections.
The central solenoid serves as the backbone of the ITER magnet system. The CS induces the majority of the magnetic flux change needed to initiate the plasma, generate the plasma current, and maintain this current during the burn time. The CS is made of six independent coil packs that use a niobium-tin (Nb3Sn) cable-in-conduit superconducting conductor, held together by a vertical pre-compression structure. The conductor will be produced in unit lengths up to 910 m. The US is responsible for the 6 modules of the CS, a spare module, and the structure that ties them together and links these modules to the rest of the magnet system.
For more information, contact Wayne Reiersen, US ITER Project Office Magnet Systems Team Leader, Oak Ridge National Laboratory, reiersenwt@ornl.gov | 865-241-3130.
Source: www.iter.org
A Symbolic First for the Central Solenoid
The central solenoid comprises six cylindrical modules plus structure subsets that will be assembled on site by the ITER Organization. Set to begin in 2019, delivery of all modules should be complete by 2021. The crate contains the main steel components of the central solenoid assembly platform—a thick steel structure that will be used throughout the assembly phase from early 2021 to mid-2023.
Source: www.iter.org
Central Solenoid Feels the Heat
The first of six independent magnets for ITER's central solenoid has successfully passed the heat treatment phase, which ultimately creates the solenoid's superconducting material. This milestone was reached in April at General Atomics (US), after the 110-tonne module spent just over ten days at 570 °C and another four at 650 °C.
Source: ITER Newsline
First Module is Ready for Heat Treatment
After spending months carefully winding the seven individual sections of the first central solenoid module, composed of over 100 tonnes of cable-in-conduit conductor, engineers and technicians have successfully completed the joining of the sections. That makes the module ready for the next step—heat treatment.
Source: ITER Newsline
Central solenoid qualification coil passes milestone
Module fabrication for the "heartbeat of ITER"—the 1,000-tonne central solenoid at the centre of the ITER magnet system—is underway at the General Atomics Magnet Development Facility in Poway, California. General Atomics finished the insulation process earlier this month for the qualification coil. This coil serves to validate final manufacturing processes prior to their application during the production of the six coil modules that make up the stacked central magnet.
Central Solenoid Fabrication: A Photo Reportage
Inside of a purpose-built facility at General Atomics in California (US), ten customized workstations for central solenoid fabrication—from winding through to final testing—have been built and are undergoing commissioning with a dummy coil. Winding was completed in April 2016 on the first 14-layer production module.
Source: ITER Newsline