Sulphur hexafluoride (SF6) has been the most commonly used gas in the electrical industry since 1960s. Due to the high environmental hazards reported by using SF6, the research on to investigate alternative gaseous insulation has become demanding research in high voltage engineering. The refrigerant gas chlorodifluoromethane (CHClF2) with low global warming potential and stable chemical properties possess high dielectric strength due to the presence of fluorine atoms. In this paper, the dielectric strength of CHClF2 and its mixtures with CO2, N2, and Air in the uniform field are investigated under AC, DC and impulse voltage. Buffer gases (CO2, N2, and Air) are added to improve the boiling point of base gas (CHClF2). The dielectric strength increase has also been reported by mixing base gas with N2. Moreover, the synergistic effect, liquefaction temperature, and self-recoverability test were also obtained proving the significance of the research.

中文翻译：

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氯二氟甲烷及其与其他 N2/CO2/空气的混合物作为 SF6 替代品在高压应用中的介电性能研究

自 1960 年代以来，六氟化硫 (SF6) 一直是电气工业中最常用的气体。由于使用 SF6 报告的高环境危害，研究替代气体绝缘已成为高压工程中的一项艰巨研究。由于氟原子的存在，具有低全球变暖潜势和稳定化学性质的制冷剂气体氯二氟甲烷（CHClF2）具有高介电强度。本文研究了 CHClF2 及其与 CO2、N2 和空气的混合物在交流、直流和脉冲电压下在均匀场中的介电强度。添加缓冲气体（CO2、N2 和空气）以提高基础气体 (CHClF2) 的沸点。通过将基础气体与 N2 混合，还报告了介电强度的增加。此外，协同效应，