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News & Media

Latest ITER Newsline

  • Magnets | CEA delivers ITER cryogenic instrumentation

    The ITER Organization has relied on the French CEA institute and its expertise in cryogenics and large superconducting magnets for the specialized instrumentati [...]

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  • Sector sub-assembly | Twin meets twin

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  • R&D in Europe | Working with industry on digital hydraulics

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  • Diagnostics | What is the plasma shape? Ask the flux loop

    Inside the machine, the flux loop diagnostic will provide important information to operators on the boundary shape, energy and stability of the plasma. In ITE [...]

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  • Image of the week | Communicators of all countries, unite!

    ITER is a fascinating story to tell—how it began and how it developed, the challenges it has never ceased to face, the awe its infrastructure and components ins [...]

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Of Interest

See archived entries

India successfully tests power supplies for heating system

Indian Domestic Agency

A 3 MW radio frequency high voltage power supply has been successfully operated at ITER parameters. Procurement can begin in India for the ITER ion cyclotron resonance heating power supplies. (Click to view larger version...)
A 3 MW radio frequency high voltage power supply has been successfully operated at ITER parameters. Procurement can begin in India for the ITER ion cyclotron resonance heating power supplies.
Ion cyclotron resonance heating (ICRH) is one of three external heating systems that ITER will rely on to bring the plasma to fusion temperatures.

Radio waves at specific frequencies (40-55 Mhz) are generated by radio frequency sources, moved along massive transmission lines to two 45-tonne launchers, and finally transferred into the plasma through ports in the vacuum vessel. ICRH heating will deliver 20 MW of heating power into the ITER machine.

A team in India is overseeing the procurement of nine radio frequency sources for the ITER ICRH heating system and corresponding high voltage power supplies. At a dedicated R&D laboratory in Gandhinagar, work is underway to demonstrate the requirements for ITER deliverables, including a development program for a 2.5 MW radio frequency amplifier.

In recent news, a 3 MW dual output high voltage power supply system supplied by contractor ECIL (Electronics Corporation of India Limited) was successfully operated at ITER parameters. The layout of the system was chosen to mimic the exact configuration that will be used at ITER, with a pair of cast resin multi-secondary transformers place at ground level and the electronics at mezzanine levels. Interconnecting cables are routed through high voltage feedthroughs on the upper floor.


The team in front of the power cubicles at the dedicated lab in Gandhinagar: Dishang Upadhyay, Rasesh Dave, Thibault Gassmann, Amit Patel, Hitesh Dhola, Niranjan Goswami and Kush Mehta. (Click to view larger version...)
The team in front of the power cubicles at the dedicated lab in Gandhinagar: Dishang Upadhyay, Rasesh Dave, Thibault Gassmann, Amit Patel, Hitesh Dhola, Niranjan Goswami and Kush Mehta.
The high voltage power supply was operated continuously and successfully, delivering 2.8 MW of output power to drive 1.5 MW diacrode-based amplifiers on matched and mismatched loads.

These successful results will allow the Indian Domestic Agency to begin the procurement of power supplies for the ITER ICRH system.


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