Shield-shape design for vacuum circuit breakers

Author

Zhao, Zhizhong ; Wang, Youhua ; Liu, Tao ; Peng, Lixiao

Author_Institution

Hebei Univ. of Technol., Tianjin

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

193

Lastpage

196

Abstract

Electric field optimization is the key task for vacuum circuit breakers design. By the electric field calculation, the isopotential of a semi-plane flat electrode with infinitesimal small thickness is almost hemicycle, and the figure of an actual shield should be what the isopotential rotates around its shaft for a circular course, but not other figures. Three common figures of middle shield have been calculated with electric field calculating software, by which the conclusion is validated. The radius of round-corner of shield has an optimization value. In this way, more symmetrical electric field in vacuum interrupters is obtained and its peak value appears smaller.

Keywords

electrodes; electromagnetic shielding; optimisation; vacuum circuit breakers; vacuum interrupters; electric field optimization; semi plane flat electrode; shaft isopotential rotation; shield-shape design; vacuum circuit breaker; vacuum interrupter; Circuit breakers; Convergence; Design methodology; Design optimization; Electrodes; Electromagnetic fields; Equations; Shafts; Shape; Vacuum technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4770679