环保绝缘气体C<sub>4</sub>F<sub>7</sub>N研究及应用进展Ⅰ:绝缘及电、热分解特性

doi:10.19595/j.cnki.1000-6753.tces.210056

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Abstract

Sulfur hexafluoride (SF₆), which is widely used in medium and high voltage gas insulating transmission and distribution equipment, is an extremely strong greenhouse gas. In order to achieve the emission reduction goal of “carbon peak in 2030, carbon neutral by 2060” as well as promote the clean, low-carbon transformation and green development of the power industry, developing eco-friendly gas insulating medium and equipment to gradually reduce the use of SF₆ has become a hot topic. In recent years, Perfluoroisobutyronitrile (C₄F₇N) and its gas mixture have attracted wide attention due to its superior insulation and eco-friendly properties, which demonstrates promising application potential as SF₆ alternative gas. In this series, we summarized the research status of eco-friendly gas C₄F₇N at home and abroad over the past five years. In part I, the basic parameters of common eco-friendly gases were firstly introduced. Then the research progress of insulation and arc extinguishing characteristics of C₄F₇N gas mixture were reviewed. Finally, the electrical, thermal decomposition mechanism and characteristics of C₄F₇N gas mixture were discussed. The future research trend of insulation as well as the electrical, thermal decomposition properties were promoted.

Key words： Eco-friendly gas C₄F₇N gas mixture insulation properties arc extinguishing performance electrical and thermal decomposition characteristics

Received: 14 January 2021

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TM835

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	Li Yi
	Zhang Xiaoxing
	Fu Mingli
	Xiao Song
	Tang Ju
	Tian Shuangshuang

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Li Yi,Zhang Xiaoxing,Fu Mingli等. Research and Application Progress of Eco-Friendly Gas Insulating Medium C₄F₇N, Part Ⅰ: Insulation and Electrical, Thermal Decomposition Properties[J]. Transactions of China Electrotechnical Society, 2021, 36(17): 3535-3552.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210056 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I17/3535

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