As the most ideal alternative gas for SF₆ at present, i-C₄F₇N has attracted the attention of many scientists. The study of the breakdown characteristics of i-C₄F₇N gas mixtures is of great significance for the development and engineering application of eco-friendly electrical equipment. In this paper, we investigated the breakdown characteristics of i-C₄F₇N/CO₂ gas mixtures under different mixing ratios, pressures and electric fields. Further, we analyzed the influence of the nonuniformity of the electric field and AC power source on breakdown voltage In addition, we propose a three-component insulation gas solution, which includes i-C₄F₇N, CO₂ and O₂(1-9%).
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Wu et al. (2024) studied this question.
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