Research Advances in Interface Insulation Characteristics of SF6 Alternative Gases

被引:0
|
作者
Deng J. [1 ]
Dong J. [1 ]
Chen J. [1 ]
Li J. [1 ]
Xue J. [2 ]
Zhang G. [1 ]
机构
[1] State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an
[2] School of Electrical Engineering and Automation, Hefei University of Technology, Hefei
来源
Gaodianya Jishu/High Voltage Engineering | 2022年 / 48卷 / 02期
基金
中国国家自然科学基金;
关键词
Charge accumulation; Gap breakdown; Gas-solid com-patibility; SF[!sub]6[!/sub] alternative gases; Surface insulation;
D O I
10.13336/j.1003-6520.hve.20201603
中图分类号
学科分类号
摘要
Due to the serious greenhouse effect of SF6, eco-friendly insulating gases represented by CF3I, C4F7N, C5F10O and other gases have attracted more and more attention. The surface insulation characteristic is an important index to evaluate the electrical performance of the gas-solid composite insulation system, but the current research on new eco-friendly gases is not complete. In order to promote the development and application of new eco-friendly gases, this article reviews the research progress of several popular SF6 alternative gases on the interface insulation properties. From three aspects, such as the gap breakdown characteristics and surface insulation characteristics, gas-solid interface charge accumulation characteristics, and the influence of gas decomposition and gas-solid compatibility on the surface insulation characteristics, the possibility of SF6 alternative gases for engineering applications is discussed. Finally, three directions for the investigation of SF6 alternative gases on the interface insulation characteristics are proposed as follows: first, the influence of frequency on creeping discharge in new eco-friendly gases should be focused on; second, the effect of charge accumulation on creeping insulation under long-term electric-thermal-mechanical compound stress in new eco-friendly gases should be investigated; third, the design of the new eco-friendly gas-solid composite insulation system should be optimized based on the influence mechanism of gas decomposition characteristics and gas-solid compatibility on the surface insulation performance. © 2022, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
引用
收藏
页码:661 / 673
页数:12
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