Title :
JET TF coil faults-detection, diagnosis and prevention
Author :
Last, J.R. ; Bertolini, E. ; Bonicelli, T. ; Dolgetta, N. ; Presle, P. ; Zullo, G.
Author_Institution :
JET Joint Undertaking, Abingdon, UK
fDate :
7/1/1994 12:00:00 AM
Abstract :
Three of the toroidal field (TF) coils of the JET tokamak have developed interturn faults. These faults have not been catastrophic and it has been possible to continue operation and replace the faulty coils with spares at the next pre-planned shutdown. The faults were found to be due to water leaks. The coil coolant was changed from water to an insulating fluid. All known faulty coils have been changed and latest measurements do not detect any faults on the installed coils
Keywords :
Tokamak devices; electromagnets; fault location; fusion reactor safety; fusion reactor theory and design; insulated wires; JET TF coil faults; JET tokamak; coil coolant; fault detection; fault diagnosis; fault prevention; fusion reactor; installed coils; insulating fluid; interturn faults; preplanned shutdown; toroidal field coils; water leaks; Coils; Coolants; Copper; Fault currents; Fault detection; Fault diagnosis; Glass; Insulation; Magnetic field measurement; Toroidal magnetic fields;
Journal_Title :
Magnetics, IEEE Transactions on
