Title :
Experimental diagnostic of an industrial SF/sub 6/ PTFE confined circuit breaker
Author :
Gentils, François ; Fleurier, C. ; Fievet, C. ; Le Menn, E.
Author_Institution :
GREMI, Orleans Univ., France
Abstract :
Summary form only given. An experimental study of an electrical arc has been achieved in an industrial SF/sub 6/ puffer circuit breaker using a PTFE nozzle as a quenching chamber. The arc was created at the moment of separation of two copper hollow cylindrical contacts during the discharge of a capacitor bank allowing peak currents ranging from 4.7 to 13.7 kA. The are remained confined by the nozzle, inducing a strong vaporization of PTFE. Simultaneously the arc was blown in the hollow electrodes by a SF/sub 6/ flow created by a piston linked to the electrode movement. This mechanical flow induced a strong cooling at the moment of zero current.
Keywords :
circuit-breaking arcs; plasma diagnostics; polymers; sulphur compounds; 4.7 to 13.7 kA; PTFE nozzle; SF/sub 6/; SF/sub 6/ PTFE confined circuit breaker; SF/sub 6/ puffer circuit breaker; copper hollow cylindrical contacts; electrical arc; electrode movement; mechanical flow; peak currents; piston; quenching chamber; strong cooling; zero current; Circuit breakers; Copper; Electrodes; Plasma applications; Plasma density; Plasma diagnostics; Plasma materials processing; Plasma measurements; Plasma temperature; Sulfur hexafluoride;
Conference_Titel :
Plasma Science, 2000. ICOPS 2000. IEEE Conference Record - Abstracts. The 27th IEEE International Conference on
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-5982-8
DOI :
10.1109/PLASMA.2000.855171
