Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章检索

首页 >> 文章检索 >> 最新索引

开关柜局部放电分析定位

来源:电工电气发布时间:2021-09-18 09:18 浏览次数:448

开关柜局部放电分析定位

魏彬,王欣,杜岳凡,王小朋,董政,闫立东,刘常军
(国网天津市电力公司检修公司, 天津 300304)
 
    摘 要:受开关柜结构紧凑特点的制约,巡检过程中对放电类型分析和放电位置确定存在一定困难。综合利用特高频法和高频电流法对某 220 kV 变电站开关柜套管放电缺陷进行分析并定位,应用特高频法发现开关柜放电信号后,结合特高频时差法和高频电流定位,分析确定放电原因并最终通过解体验证了检测结果,说明放电位置判断正确。
    关键词:开关柜;局部放电;特高频法;高频电流
    中图分类号:TM591 ;TM855     文献标识码:B     文章编号:1007-3175(2021)09-0050-04
 
Analysis and Location of Partial Discharge of Switchgear
 
WEI Bin, WANG Xin, DU Yue-fan, WANG Xiao-peng, DONG Zheng, YAN Li-dong, LIU Chang-jun
(State Grid Tianjin Electric Power Maintenance Company, Tianjin 300304, China)
 
    Abstract: Restricted by the compact structure of the switchgear, it is difficult to analyze the discharge type and determine the discharge location during the inspection process. In this paper, UHF method and high frequency current method are used to analyze and locate the discharge defects of the switchgear casing of a 220 kV substation. After finding discharge signals of switchgear through UHF, UHF and high frequency current method are combined to analyze the cause of discharge, and finally the testing results are verified by the disassembly, indicating the right judgment of the discharge location.
    Key words: switchgear; partial discharge; UHF method; high frequency current
 
参考文献
[1] 邓志祥,康琛,王华云,等.10 kV 开关柜穿屏套管的局部放电检测与结构优化[J] . 电瓷避雷器,2019(2) :226-230.
[2] 王鹏,刘玉婷,邹阳,等. TEV 和超声波检测法在开关柜局部放电检测中的应用评述[J] . 高压电器,2020,56(10) :75-83.
[3] 赵常威,丁国成,杨为,等. 基于开关柜缺陷模型的局放检测方法对比研究[J] . 高压电器,2019,55(3) :220-225.
[4] 孙进, 梅凡, 陈月, 等. 声电联合检测法在开关柜局部放电事故分析中的应用[J] . 电工技术,2020(24) :94-95.
[5] 郭超,刘君,周波,等. 开关柜带电检测应用分析与解体实例[J]. 电工电气,2019(10) :42-46.
[6] 李建明.35 kV 开关柜穿柜套管故障原因分析[J] .电力安全技术,2021,23(1) :37-38.