HF和H<sub>2</sub>S作为气体绝缘组合电器绝缘缺陷诊断特征气体的有效性

doi:10.19595/j.cnki.1000-6753.tces.160303

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Abstract

Target gas monitoring of partial discharge(PD)is an important basis and means to achieve defect warning of gas insulated switchgear(GIS).To explore the relationship between the potential target gases of HF and H₂S and PD in GIS,four typical PD patterns were set up on experiment platform,studying the variation of decomposition products HF and H₂S under different kinds of discharge.On the basis,the effect of three typical molecular sieve adsorbents was also considered.Experiments results showed that HF and H₂S were two important target gases of PD in GIS,HF to reflect strong PD,and H₂S to characterize serious solid dielectrics discharge of epoxy resin such as basin-type insulator.Because of the chemical properties of the two gases and the strong adsorption of molecular sieve adsorbents,the target gases of HF and H₂S are difficult to long-term stabilize in GIS.Therefore,the research and application of HF and H₂S on-line monitoring technology will be of great significance to accurately assess the insulation state of GIS by chemical diagnosis method.

Key words： Gas insulated switchgear target gas HF H₂S adsorption

Received: 14 March 2016 Published: 25 October 2017

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TM855

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	Tang Nian
	Qiao Shengya
	Li Li
	Fan Xiaopeng
	Zhou Wenjun

Cite this article:

Tang Nian,Qiao Shengya,Li Li等. Validity of HF and H₂S as Target Gases of Insulation Monitoring in Gas Insulated Switchgear[J]. Transactions of China Electrotechnical Society, 2017, 32(19): 202-211.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160303 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I19/202

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