The Jet remotely controlled welding system

A remote welding system for use during the remote maintenance of JET is described. The system comprises various weld tools, weld current power source, supply for tool actuators, weld gases and cooling water, a command and control interconnection system and the operator man-machine interface. Due to the radiation environment at the workpiece all of the weld power and service supply packs are located up to 50 meters from the tool. The command and control of the power pack from the remote control room is achieved with a standard serial link. All control commands available at the power pack are also available at the control room workstation. The gas and cooling water flows/pressures are monitored, displayed and software interlocked for safety. The man-machine interface provides TV monitors for tools with weld pool viewing incorporated. The system's performance under remote conditions is assessed