Domain Coupling of Multi-Physical Parameters for EHV SF6 Circuit Breaker

Author

Cao, Yundong ; Liu, Xiaoming ; Liu, Yanju

Author_Institution

Sch. of Electr. Eng., Shenyang Univ. of Technol., Shenyang, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

Abstract

Coupling of multi physical parameters in extra high voltage SF₆ circuit breaker (EHV SF₆ CB) has been investigated. A 2D combined mathematical model of electric field, flow field and k - Â¿ turbulent flow was developed, and the coupling condition of multi physical field of CB was established. And the computation has been carried out for a 500 kV 1-break SF₆ CB. The multi physical parameters and the electrical characteristics varying with the interrupting course have been investigated. In addition, the dielectric recovery characteristics (DRC) of the 500 kV 1-break SF₆ CB has been obtained, and the visualization of the breaking course has been realized.

Keywords

SF₆ insulation; circuit breakers; high-voltage techniques; numerical analysis; 2D combined mathematical model; dielectric recovery characteristics; domain coupling; extra high voltage SF₆ circuit breaker; multiphysical parameters; numerical simulation; voltage 500 kV; Aerodynamics; Circuit breakers; Coupling circuits; Dielectrics; Electric variables; Mathematical model; Navier-Stokes equations; Physics computing; Sulfur hexafluoride; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5449006

Filename

5449006