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  • Worksite | First pillars for the crane hall

    For the overhead cranes to deliver machine components into the Tokamak assembly pit, the rails that carry them need to be extended some 80 metres beyond the tem [...]

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  • Transport | 300 tonnes of equipment on its way to ITER

    A specially designed assembly tool and elements of the cryostat and vacuum vessel thermal shields are part of the shipments travelling now from Korea to ITER. W [...]

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  • Fusion world | A new tokamak in town

    After EAST in China and WEST in France, another of the cardinal points of the compass has been chosen to name a tokamak. Introducing NORTH—the NORdic Tokamak de [...]

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  • Opportunities | Bringing the ITER Business Forum to Washington

    Every second year, a two-day ITER Business Forum is held to invite existing and potential suppliers for the ITER Project—laboratories, universities, and compani [...]

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  • World Energy Congress | Fusion "at a time of transition"

    In the United Arab Emirates, Abu Dhabi is often referred to as a tourism hotspot that combines luxury and ancient traditions. In September, Abu Dhabi was in the [...]

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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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