GIS在局部放电下的SF_6气体分解产物实验研究  

Experimental Study on Relationship of SF_6 Decomposition Products and Partial Discharge in Gas Insulated Switchgear

作　　者：鲁钢 郭江涛 孙福军 颜湘莲[3] 陈海伦 

机构地区：[1]黑龙江省电力科学研究院,哈尔滨150036 [2]黑龙江省电力公司,哈尔滨150030 [3]中国电力科学研究院,北京100192

出　　处：《高压电器》2013年第6期10-16,共7页High Voltage Apparatus

基　　金：国家电网公司专题项目~~

摘　　要：笔者使用自行设计126 kV交流工频电源和GIS局部放电实体实验平台以及气体分析检测系统,模拟对地放电故障状态,对局部放电引起的SF6分解物特征组份气体进行定性定量分析,用脉冲电流法对局部放电强度进行监视,得到局部放电引起SF6气体分解物特征组份及变化规律。研究表明:局部放电致使SF6气体发生分解,特征组分为SOF2、SO2、S2OF10,SOF2、SO2与局放持续时间、局放强度呈现正相关性,吸附剂对于SF6分解物检测有影响。A 126 kV AC power frequency power supply, a GIS partial discharge testing platform, and a gas detection system are designed to simulate the fault state of discharge to ground. Subsequently, SF6 decomposed characteristic gas components induced by partial discharge are analyzed quantitatively, where the intensity of partial discharge is monitored with the pulse current method. The results show that： ①The characteristic gas components from partial discharge-induced SF6 decomposition are SOF2, SO2, and S2OF10; ②The volume fractions of SOF2 and SO2 exhibit positive correlation with duration and intensity of partial discharge; ③Adsorbent imposes effect on measurement of SFs decomposition products.

关 键 词：气体绝缘设备 SF6气体分解产物 局部放电 实验平台 气体分析 

分 类 号：TM855[电气工程—高电压与绝缘技术]