Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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C4F7N/CO2混合气体熄弧特性试验研究

来源:电工电气发布时间:2020-02-26 14:26 浏览次数:1015
C4F7N/CO2混合气体熄弧特性试验研究
 
王佳田,林莘,张佳,庚振新,徐建源,刘鹏飞,王强
(沈阳工业大学 电气工程学院,辽宁 沈阳 110870)
 
摘 要:为研究全氟异丁腈(C4F7N)与二氧化碳(CO2)混合气体的熄弧特性,利用LC振荡回路搭建电弧试验平台,对六氟化硫(SF6)、5%C4F7N/95%CO2以及9%C4F7N/91%CO2混合气体在0.6、0.8 MPa下进行20 kA短路电流开断试验,利用测量得到的电弧电压、电弧电流,计算电弧电导,进而研究C4F7N/CO2混合气体的熄弧性能。研究结果表明,随着C4F7N含量的增加,电弧电压熄弧峰值以及电弧电导与SF6气体逐渐接近,表现出优良的灭弧性能。
关键词:C4F7N/CO2混合气体;电弧试验;熄弧性能
中图分类号:TM501+.2 文献标识码:A 文章编号:1007-3175(2020)02-0046-05
 
Experimental Study on Arc Extinguishing Characteristics of C4F7N/CO2 Mixed Gas
 
WANG Jia-tian, LIN Xin, ZHANG Jia, GENG Zhen-xin, XU Jian-yuan, LIU Peng-fei, WANG Qiang
(School of Electrical Engineering, Shenyang University of Technology, Shenyang 11 0870, China)
 
    Abstract: In order to study the arc-extinguishing characteristics of C4F7N and CO2 mixed gas, the arc test platform was built by LC oscillation circuit, and 20 kA short circuit current breaking tests were carried out with SF6, 5%C4F7N/95%CO2 and 9%C4F7N/91%CO2 mixed gas at 0.6 MPa and 0.8 MPa. The measured arc voltage and arc current were used to calculate the arc conductance, so as to study on the arc-extinguishing performance of C4F7N/CO2 mixed gas. The results show that with the increase of C4F7N content, the arc voltage quenching peak and arc conductance are close to those in the SF6 gas, showing a strong arc-extinguishing ability.
    Key words: C4F7N/CO2 mixture gas; arcing experiment; arc extinguishing performance
 
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