Study on Novel Rotary-Gas Nozzle for HV SF6 Circuit Breaker Based on CFD Simulation

Author

Yundong Cao ; Si Fu ; Xiaoming Liu ; Xiaoyuan Luo ; Biao Wang

Author_Institution

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

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

Abstract

Blowing gas method directly affects the interrupting capability in arc-quenching chamber of puffer SF₆ circuit breaker. Aiming at the proposed novel Rotary-Gas nozzle structure of the arc-quenching chamber, finite volume method has been applied to analyze the 3D flow field. Computational fluid dynamic (CFD) simulation for the interrupting process has been performed. The simulation provides the comparison of the distribution of velocity, pressure and density for different structures in flow field. By establishing the Rotary-Gas grooves in the traditional nozzle upstream, the advantage of blowing arc rotation has been analyzed. Hence, by changing the angle and numbers of the Rotary-Gas grooves, the rational nozzle structure has been obtained.

Keywords

arcs (electric); circuit breakers; computational fluid dynamics; nozzles; partial differential equations; 3D flow field; arc quenching chamber; blowing gas method; computational fluid dynamic simulation; density distribution; finite volume method; high voltage SF6 circuit breaker; interrupting process; pressure distribution; rotary gas groove; rotary gas nozzle; velocity distribution; Circuit breakers; Circuit simulation; Computational fluid dynamics; Computational modeling; Engine cylinders; Equations; Finite volume methods; Fluid flow; Sulfur hexafluoride; Temperature;

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.2010.5448597

Filename

5448597