文章摘要
蔡凡,薛健,谭东现,肖登明.三氟碘甲烷在有功负载电流下分解特性研究[J].,2019,47(4):8-12,25.
三氟碘甲烷在有功负载电流下分解特性研究
Decomposition Products Analysis of Trifluoroiodomethane (CF3I) Under Load Current Interruption
  
DOI:
中文关键词: 三氟碘甲烷  分解产物  有功负载开断
英文关键词: CF3I  decomposition products  load current interruption  
基金项目:
作者单位
蔡凡 南瑞集团有限公司(国网电力科学研究院)南京 211106 
薛健 南瑞集团有限公司(国网电力科学研究院)南京 211106 
谭东现 上海交通大学电子信息与电气工程学院上海 200030 
肖登明 上海交通大学电子信息与电气工程学院上海 200030 
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中文摘要:
      研究了有功负载电流开断下三氟碘甲烷(CF3I)的分解特性。通过用气相色谱质谱联用方法鉴别分解产物的种类和含量。研究结果表明,工频交流击穿或经历200A负载电流开断后,仅有少于1%的CF3I气体被分解。当电流增大到400A时,95%以上的CF3I气体分解为四氟化碳(CF4)和六氟乙烷(C2F6)。通过求解最小Gibbs自由能的方法获得了平衡态CF3I在不同温度下组分分布规律,并以此探讨CF3I分解规律。
英文摘要:
      This paper is devoted to detecting decomposition characteristics of Iodotrifluoromethane (CF3I) under load current interruptions. The decomposition products are measured utilizing chromatography-mass spectroscopy. It is found that less than 1% CF3I gas is decomposed after several interruptions at a current of 200 A or hundred times of alternating current (AC) discharges. However, underinterruptions at a current of 400 A, more than 95% CF3I gas is decomposed into carbon tetra?uoride (CF4), hexa?uoroethane (C2F6). The equilibrium compositions based on Gibbs free energy minimization of CF3I were calculated to explain the decomposition mechanism.
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