Research on Rotary-gas High Voltage SF6 Circuit Breaker with Novel Blade Nozzle Part III: Arc Behavior Research

摘要：

A 252kV single-break SF6 circuit breaker is taken as the investigation model in this paper and 3D numerical calculation model of traditional no-blade nozzle and novel blade nozzle are presented based on 3D N-S equations. By simulating, influences of gas flow on arc during the arc extinguishing process of the two type nozzles have been researched using finite volume method (FVM). Arc extinction performance has been judged by comparison temperature, pressure and velocity vector of blade nozzle under different opening load. And the variation regular of energy is acquired by analyzing the maximum sections energy. Research indicates that blade nozzle can control gas flow movement effectively, accelerate arc energy dissipation, and benefit for the interruption of circuit breaker.

作者: Yundong Cao Shu Wang Jing Li Zhiming Qi

作者单位: School of Electrical Engineering, Shenyang University of Technology, 110870, Shenyang, P.R.China Liaoning Branch of Extra-high Voltage Company, 114001, Anshan, P.R.China

会议类型: 国际会议

会议名称: 2011 1st International Conference on Electric Power Equipment-Switching Technology(第一届电力设备开断技术国际会议 ICEPE)

会议地点: 西安

会议语种:英文

页码: 135-138

在线出版日期: 2011-10-23（万方平台首次上网日期，不代表论文的发表时间）