Subscribe options

Select your newsletters:

Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Cryolines | Another day, another spool

    Having wedged his body and equipment into the cramped space between the ceiling and the massive pipe, a worker is busy welding two cryolines spools. A few metre [...]

    Read more

  • Image of the week | Bearings unveiled

    The construction teams are in the last stages of preparing the Tokamak pit for the first major operation of ITER machine assembly: the lowering of the cryostat [...]

    Read more

  • Technology | Perfecting tritium breeding for DEMO and beyond

    While ITER will never breed tritium for its own consumption, it will test breeding blanket concepts—the tools and techniques that designers of future DEMO react [...]

    Read more

  • Fusion world | Japan and Europe complete the assembly of JT-60SA

    The JT-60SA fusion experiment in Naka, Japan, is designed to explore advanced plasma physics in support of the operation of ITER and next-phase devices. After s [...]

    Read more

  • Manufacturing | Thermal shield milestone in Korea

    Six years after the start of fabrication, Korean contractor SFA has completed the last 40° sector of vacuum vessel thermal shield. The stainless steel panels, c [...]

    Read more

Of Interest

See archived entries

Key power supply elements pass tests in Russia

Since the signature of a Procurement Arrangement in 2011 with Russia for switching networks, fast discharge units, DC busbars and instrumentation—all key elements of the ITER power supply and superconducting magnetic protection system—specialists from the Efremov Institute in Saint Petersburg have carried out a broad pre-manufacturing campaign including R&D, prototype and testing. In the latest news, type tests have been successfully performed on another batch of equipment prototypes.

The type tests, carried out over 10 days, demonstrated the full compliance of the prototypes with ITER requirements. One element of the latest test group—the local control cubicle—is expected for delivery before the end of the year. (Click to view larger version...)
The type tests, carried out over 10 days, demonstrated the full compliance of the prototypes with ITER requirements. One element of the latest test group—the local control cubicle—is expected for delivery before the end of the year.
The power supply equipment procurement package signed by Russia comprises a large variety of electrotechnical components—many of them designed specifically for ITER by the Efremov Institute. The R&D, fabrication and test campaign has been one of the most technically challenging, and expensive, of the 25 systems falling within the scope of Russia's responsibility to ITER.

In late March, specialists from the Efremov Institute completed tests on prototypes of the bypass open switch, the counterpulse circuit for the toroidal field fast discharge unit, and the local control cubicle for the main circuit breaker of the switching network unit prototype.

All of the tests were witnessed by a representative of the ITER Organization, technical responsible officer Francesco Milani. "The results demonstrated the high professionalism in the design and fabrication of one of the most sophisticated power supply systems. The majority of the elements belonging to this Procurement Arrangement are one-of-a-kind components; some of them (the fast discharge units for the toroidal field coils) also classify as PIC (protection-important) components and, as such, they are subject to the regulations imposed by the French Safety Authority. I have to underline that the Russian team is facing this challenge in a very competent way."

The tests, which were completed in 10 days, demonstrated the full compliance of the prototypes with ITER requirements. This opens the way to integration tests with other components, final design reviews and manufacturing readiness reviews. One element of the latest test group—the local control cubicle—is expected for delivery before the end of the year.

Manufacturing is already underway for part of the package (busbars, tested in 2014, and switching network resistors, tested in 2015). Equipment deliveries have been underway since 2015. The delivery of all system components under this Procurement Arrangement must be completed by 2023.


return to the latest published articles