Influence of Trace Water on Decomposition of Environmental Insulating Medium C<sub>5</sub>F<sub>10</sub>O

LI Yingwen; DENG Zaitao; HUANG Huayong; YUAN Jihe; ZHANG Xiaoxing

doi:10.13296/j.1001-1609.hva.2019.08.002

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Influence of Trace Water on Decomposition of Environmental Insulating Medium C₅F₁₀O

更新时间：2025-04-26

- Influence of Trace Water on Decomposition of Environmental Insulating Medium C₅F₁₀O
- High VoltageApparatus Vol. 55, Issue 8, Pages: 10-15(2019)
- 作者机构：
  
  1. 国网河南省电力公司检修公司
  2. 广东电网有限责任公司珠海供电局变电管理所
  3. 国网重庆市电力公司南岸供电分公司
  4. 重庆大学输配电装备及系统安全与新技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.08.002
  CLC： TM213
- Published：2019
- 稿件说明：
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[1]李应文,邓载韬,黄华勇,苑吉河,张晓星.微水对环保型绝缘介质C_5F_(10)O分解的影响[J].高压电器,2019,55(08):10-15.

LI Yingwen, DENG Zaitao, HUANG Huayong, et al. Influence of Trace Water on Decomposition of Environmental Insulating Medium C₅F₁₀O[J]. High voltageapparatus, 2019, 55(8): 10-15.
[1]李应文,邓载韬,黄华勇,苑吉河,张晓星.微水对环保型绝缘介质C_5F_(10)O分解的影响[J].高压电器,2019,55(08):10-15. DOI： 10.13296/j.1001-1609.hva.2019.08.002.

LI Yingwen, DENG Zaitao, HUANG Huayong, et al. Influence of Trace Water on Decomposition of Environmental Insulating Medium C₅F₁₀O[J]. High voltageapparatus, 2019, 55(8): 10-15. DOI： 10.13296/j.1001-1609.hva.2019.08.002.

摘要

O作为潜在的SF6替代气体近年来得到了广泛关注

目前针对其分解特性的研究较少。文中采用密度泛函理论分析了微量水分对C

O分解特性的影响情况。首先计算了微水环境下C

O可能的分解路径及焓值

其次讨论了分解产物的电离参数。研究发现水分子解离产生的H和OH与C

O分解产生的C3F7、CF3等自由基反应会产生C3F7COH、C3F7OH、CF3COH、C3F7、CF3OH、CF2O等物质

上述分解产物的电离参数较弱

且CF2O和HF属于有毒物质。微水的存在将促进C

O的分解

进而影响C

O混合气体的绝缘性能。相关研究成果为后期深入探究C

O混合气体的绝缘特性试验方法尤其是微水含量值制定提供了依据。

Abstract

as a potential alternative gas for SF

has attracted much attention in recent years.And there are few researches on the decomposition characteristics of C5 F

O.In this paper

density functional theory（DFT）was used to analyze the influence of trace water on the decomposition properties of C

O.Firstly

the possible decomposition paths and enthalpy of C5 F

O under trace water condition were calculat

ed.Secondly

the ionization parameters of the decomposition products are discussed.We found that H and OH dissociated from H

O molecules and the free radicals such as C

produced by C

O can react producing C

COH、C

OH、CF

COH、C

、CF

OH and CF

O etc.The ionization parameters of the above decomposition products are weak

and CF

O and HF belong to toxic substances.The presence of trace water will promote the decomposition of C

and thus affect the insulation performance of C

O gas mixture.The related research results provide the basis for the further exploration of the test methods for the insulation characteristics of C

O gas mixture

especially for the trace water content.

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Influence of Trace Water on Decomposition of Environmental Insulating Medium C5F10O

DOI：10.13296/j.1001-1609.hva.2019.08.002

摘要

Abstract

关键词

Keywords

references

Influence of Trace Water on Decomposition of Environmental Insulating Medium C₅F₁₀O