基于Boltzmann方程的CF<sub>3</sub>I混合气体协同效应分析

doi:10.19595/j.cnki.1000-6753.tces.180373

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Abstract CF₃I is a promising alternative for SF₆ gas. In this paper, two-term approximate Boltzmann equations were used to obtain the synergistic coefficient and compared with experimental results. The calculation results show that the insulation strength of CF₃I gas at 300 K is 1.2 times that of SF₆ gas and the synergistic effect was observed both in CF₃I/N₂ and CF₃I/CO₂ gas mixtures. The synergistic coefficient of CF₃I/CO₂ gas mixture was higher than that of CF₃I/N₂. When the content of CF₃I exceeds 20%, the insulation strength of CF₃I/N₂ and CF₃I/CO₂ gas mixture increases linearly with the increasing CF₃I gas content. The experimental results show that the breakdown voltage of CF₃I/N₂ gas mixture is higher than that of CF₃I/CO₂ gas mixture, but the synergistic coefficients of the two gas mixtures are basically the same.

Key words： Boltzmann equation critical breakdown CF₃I gas mixtures synergistic effect

Received: 14 April 2018 Published: 17 April 2019

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	Zhao Su
	Deng Yunkun
	Zhong Ruishuang
	Xiao Dengming

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Zhao Su,Deng Yunkun,Zhong Ruishuang等. Investigation on the Synergistic Effect of CF₃I Gas Mixtures Using Boltzmann Equation[J]. Transactions of China Electrotechnical Society, 2019, 34(7): 1553-1558.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180373 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I7/1553

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