SF<sub>6</sub>替代气体分解特性的研究综述

doi:10.19595/j.cnki.1000-6753.tces.191672

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Abstract SF₆ is an excellent insulating gas which is widely used in gas-insulated electrical equipment. However, SF₆ has high global warming potential and poor environmental performance. In order to fundamentally eliminate the usage of SF₆, it is vital to develop SF₆ replacement technology. Most of the potential SF₆ alternative gases are carbon-containing compounds. Due to different gas mixing schemes and faults, the variety of gas or solid decomposition products and their variations are quite different, which not only affect the choices of buffer gas, absorbent and solid material, but also are important foundations for the diagnosis of gas-insulated electrical equipment faults based on gas decomposition method. Therefore, from the perspective of decomposition characteristics, this paper introduces the domestic and international research progress on decomposition characteristics of several potential SF₆ alternative gases, compares the decomposition characteristics under different experimental conditions in various literatures and summarizes the possible decomposition paths. On this basis, this paper makes a panoramic outlook on SF₆replacement technology from the aspects of environmental protection, toxicity, buffer gas, chemical deposits, absorbent and fault diagnosis.

Key words： SF₆ alternative gas carbon-containing compounds decomposition characteristics research progress

Received: 02 December 2019

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	Zhou Zhenrui
	Han Dong
	Zhao Mingyue
	Zhang Guoqiang

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Zhou Zhenrui,Han Dong,Zhao Mingyue等. Review on Decomposition Characteristics of SF₆ Alternative Gases[J]. Transactions of China Electrotechnical Society, 2020, 35(23): 4998-5014.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.191672 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I23/4998

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