Research on the dielectric recovery of SF6 circuit breaker based on the flow field control

Author

Shen, Yuzhuo ; Han, Lu ; Jin, Lijun ; Lu, Ganwen ; Mei, Jian ; Zhu, Hui

Author_Institution

Dept. of Electr. Eng., Tongji Univ., Shanghai, China

fYear

2009

fDate

19-23 July 2009

Firstpage

168

Lastpage

171

Abstract

The intelligent operation of circuit breaker can choose and adjust the fit prearranging work condition of the interrupter and/or operating mechanism automatically accordance with the opening message that is sent from power system, in order to improve the SF6 dielectric recovery strength. Under the conditions of breaking, the electric field and flow field of arc chamber have been calculated. Simulation shows that it has great effect of the opening velocity and the flow field distribution on the dielectric recovery. A new scheme of controlling the flow field by using the gas flow control ring is put forward. So that the dielectric recovery strength of SF6 circuit breaker becomes the controllable parameter in intelligent operation.

Keywords

circuit breakers; circuit-breaking arcs; electric breakdown; electric strength; flow control; interrupters; SF₆ circuit breaker; arc chamber flow field; dielectric recovery; flow field control; gas flow control ring; interrupter; Circuit breakers; Control systems; Dielectric materials; Differential equations; Energy conservation; Interrupters; Mechanical factors; Power system simulation; Stress; Sulfur hexafluoride; arc chamber; circuit breaker; flow field;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2009. ICPADM 2009. IEEE 9th International Conference on the

Conference_Location

Harbin

Print_ISBN

978-1-4244-4367-3

Electronic_ISBN

978-1-4244-4368-0

Type

conf

DOI

10.1109/ICPADM.2009.5252480

Filename

5252480