环保型绝缘气体的发展前景

Development Prospect of Gas Insulation Based on Environmental Protection

阐述了气体绝缘发展的3个阶段,描述了环保型气体绝缘的研究现状。分析了绝缘气体的基本物理化学性能,分析了碳碳双键结构的气体提高气体的绝缘性能的影响机理,指出了卤族元素对气体电气强度影响的特性,提出了几种具有潜力替代SF_6的环保型绝缘气体。预测了环保型气体绝缘的发展前景,对两种目前最有有潜力取代SF_6的环保型气体c-C4F_8和CF_3I进行了的分析研究,提出了它们目前的应用可行性及适用范围,指出了进一步的研究方向。

We expounded three development stages of gas insulation and the research situation of environment-friendly gas insulation. Moreover, we analyzed the basic physical and chemical properties of the insulating gases as well as the mechanism that carbon-carbon double bond structure of gas improves gas insulating properties, pointed out the characteristics of the influences of halogen elements on the electrical strength of gas, and proposed several environment-friendly insulating gas of potential alternative to SF_6. Meanwhile, we forecast the development prospects of environment-friendly gas insulation, and theoretically analyzed c-C_4F_8 and CF_3I（two environmentally friendly gases which have the potential to replace SF_6）. Finally, we analyzed the current application feasibility and scope of c-C_4F_8 and CF_3 I, and pointed out the further research direction.