Research on Rotary-gas High Voltage SF6 Circuit Breaker with Novel Blade Nozzle Part I: Design and Research on Novel Blade Nozzle

摘要：

In order to improve the dielectric recovery characteristic in high voltage circuit breaker (HVCB), the method of rotating gas flow to extinguish the arc is presented in the studying of a 126kV single-break SF6 CB. And a novel arc quenching chamber structure with blade nozzle is presented and three dimension (3-D) mathematical model of arc quenching chamber in SF? CB is proposed. The Finite Volume Method (FVM) and total variation diminishing (TVD) schemes are used to numerically calculate the gas flow model. The characteristics of cold gas flow in arc quenching chamber during the interruption for different structures are simulated. The distributions and variations of gas flow field quantities in the arc quenching chamber such as velocity, pressure and density have been obtained and compared. The feasibility and validity of the proposed blade novel nozzle structure has been proved.

作者: Yundong Cao Xinghai Zhao Xiaoming Liu Chunguang Hou

作者单位: School of Electrical Engineering, Shenyang University of Technology, Shenyang, 110870, 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: 127-130

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）