Coil power supply, Switching network tested in Russia

Magnet logistics network.

The objects of the tests—the mechanical switches that open the circuit—are partially hidden near the centre of this photo of the test apparatus. The make switches seen in red and white were successfully tested during an earlier test campaign. Reproducing ITER conditions. To one side is a small magnet (inductive storage) with its nitrogen cooling system. The Efremov test rig for ITER switching equipment reproduces the source of the current (magnet power supplies), the transport system (busbars) and the final client (the magnet system).

Already in production. In another area of the Efremov, the ITER busbars are in series production. More than 5 kilometres (500 tonnes) of material is needed to connect the ITER coils to their power supplies. The flow of current. Busbars are comparable to electrical cables, only massive and more rigid. These test rig busbars connect the switching equipment to the magnet.