Insulation characteristics of triple mixtures of c-C4F8/N2/CO2 under lightning impulse voltage

被引：1

作者：

Zhang, Zhouming ^{[1
]}

Ni, Zhaorui ^{[1
]}

Xiao, Dengming ^{[1
]}

Wu, Yizhou ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200030, Peoples R China

[2] Shanghai Jiao Tong Univ, Michigan Shanghai Jiaotong Univ Joint Inst, Shanghai 200240, Peoples R China

来源：

PLASMA SCIENCE & TECHNOLOGY | 2018年 / 20卷 / 10期

基金：

中国国家自然科学基金;

关键词：

SF6; alternative; insulation characteristics; lightning impulse voltage; c-C4F8 gas mixtures; C-C4F8; GAS;

D O I：

10.1088/2058-6272/aace9d

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

This paper has researched the insulation characteristics of 10% c-C4F8/N-2/CO2 mixtures under lightning impulse voltage by experiment. It is shown that the positive and negative lightning impulse breakdown voltages of 10% c-C4F8/N-2/CO2 gas mixtures rise linearly as the electrode gap distance and gas pressure increase and under the same conditions, the positive lightning impulse breakdown voltage of the gas mixtures is always higher than the negative lightning impulse breakdown voltage. As the gas mixtures have a little higher liquefied temperature than SF6 and the comprehensive GWP is about 5% of SF6, and the positive and negative lightning impulse breakdown voltages can both reach 60% of SF6, 10% c-C4F8/N-2/CO2 gas mixtures can be applied as insulation gas in electrical equipment such as C-GIS, GIT, GIL and so on.

引用

页数：6

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