|
|||||
|
|
Axially blown SF6-arcs around current zero |
|
| Authors: | H P Graf H P Meili E Fischer H J Schoetzau |
| Institution: | (1) Physics Laboratory, Sprecher Schuh Ltd., CH-5001 Aarau, Switzerland;(2) Present address: AT&T Bell Laboratories, Holmdel, N.J., USA;(3) Present address: Physics Dept., Swiss Federal Institute of Technology ETHZ, CH-8093 Zürich, Switzerland |
| Abstract: | The increase of the interrupting capability of modern SF6 puffer breakers demands a better knowledge of the interaction of the arc with the gas flow. During the current interruption in an SF6 breaker the arc temperature in the stagnation zone is of decisive importance. The temporal evolution of the arc temperature and the diameter is studied by means of interferometry and emission spectroscopy. Experimental results are presented which show the influence of the current slope and the gas pressure on the arc decay. These results are compared with a theoretical model describing the temperature decay after current interruption. |
| Keywords: | 52 42 80 |
| 本文献已被 SpringerLink 等数据库收录！ | |