Study on Arc Extinguishing Performance of DC C4F7N/CO2 Mixed Gas

IOP Conference Series

article

Chengli Wang¹  Jing Li¹  Shuxin Liu¹  Yundong Cao¹ 

[1] School of electrical engineering, Shenyang University of Technology

DOI  :  10.1088/1755-1315/692/3/032097

学科分类：材料科学（综合）

来源: Institute Of Physics Publishing

【 摘 要 】

The arc characteristic analysis of C 4 F 7 N/CO 2 , CO 2 and SF 6 gases with volume fraction of 10%C 4 F 7 N-90% under DC condition is studied. Firstly, based on the internal physical process of arc, a two-dimensional axisymmetric arc model of C 4 F 7 N/CO 2 , CO 2 and SF 6 gas was established and calculated. The arc temperature distribution and dynamic characteristics of three gas media are compared and analyzed the results show that the temperature distribution of C 4 F 7 N/CO 2 mixed gas is more similar to that of SF6 gas arc, and its radial cooling speed is faster, indicating that compared with CO 2 gas, C 4 F 7 N/CO 2 mixed gas has better arc-quenching characteristics, which can be used in the study of SF 6 substitute gas.

【 授权许可】

CC BY