Construction
The JET facilities are situated on a retired Navy airfield near Culham, Oxfordshire – RNAS Culham (HMS Hornbill), in the UK: the construction of the buildings which house the project was undertaken by Tarmac Construction, starting in 1978 with the Torus Hall being completed in January 1982. Construction of the JET machine itself began immediately after the completion of the Torus Hall, with the first plasma experiments in 1983.
The components for the JET machine came from manufacturers all over Europe, with these components transported to the site.
Because of the extremely high power requirements for the tokamak, and the fact that power draw from the main grid is limited, two large flywheel generators were constructed to provide this necessary power. Each 775 ton flywheel can spin up to 225 rpm. One generator provides power for the 32 toroidal field coils, the other for inner poloidal field coils. The outer field coils draw their power from the grid.
Read more about this topic: Joint European Torus
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