STUDY ON THE DECOMPOSITION BY-PRODUCTS OF SF6 UNDER THE OVERHEAT FAULTS

摘要：

　　Overheat fault is the main type of the insulating faults in gas-insulated apparatus,which can produce various decomposition by-products.This paper presents the relationship between the decomposition by-products and the severity of overheat fault,by carrying out a series of overheat experiments.The various experimental conditions,including overheat temperatures,heating durations,overheat metal materials and SF6 gas pressures,were simulated during the overheat experiments.Then the produced decomposition gases were detected by gas chromatograph-mass spectrometry.Based on the experimental results,it is concluded that the types and concentrations of the decomposition by-products are closely related to the severity degree of the overheat fault.Moreover,some significant features and characteristics of the decomposition by-products were concluded,which can be regarded as the indexes for identifying the overheat fault.

关键词： overheat fault gas decomposition by-product SF6 gas chromatograph-mass spectrometry

作者: Tao LIN Dong HAN Haifeng ZHONG Guoqiang ZHANG

作者单位: Institute of Electrical Engineering,CAS,China;Graduate University of Chinese Academy of Sciences Institute of Electrical Engineering,CAS,China

会议类型: 国际会议

会议名称: 第五届中国国际供电会议(GIRED)

会议地点: 上海

会议语种:英文

页码: 1-4

在线出版日期: 2012-09-05（万方平台首次上网日期，不代表论文的发表时间）