Magnetic field immunity of the low voltage current breakers installed inside the ITER tokamak building

Author

De Lorenzi, A. ; Bettanini, G. ; Desideri, D. ; Grando, L.

Author_Institution

Consorzio RFX, Assoc. EURATOM-ENEA, Padova, Italy

fYear

2003

fDate

14-17 Oct. 2003

Firstpage

610

Lastpage

613

Abstract

Two typologies of circuit breakers for low voltage distribution system have been extensively tested immersed in a static magnetic field, an environmental condition similar to what is expected inside the ITER tokamak building. Functionality tests with and without load, protection relay tests and life tests at nominal ratings have been performed. The results allowed to point out a magnetic field limit for regular operation irrespective of the installation, to find the operability limits for higher magnetic field and to assess if magnetic field changes the wearing during the life.

Keywords

Tokamak devices; circuit breakers; plasma toroidal confinement; ITER tokamak building; circuit breakers; functionality tests; life tests; low voltage current breakers; low voltage distribution system; magnetic field immunity; magnetic field limit; nominal ratings; protection relay tests; static magnetic field; Circuit breakers; Circuit testing; Life testing; Low voltage; Magnetic fields; Performance evaluation; Protection; Protective relaying; System testing; Tokamaks;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 2003. 20th IEEE/NPSS Symposium on

Print_ISBN

0-7803-7908-X

Type

conf

DOI

10.1109/FUSION.2003.1426721

Filename

1426721