基于多种检测技术的高压开关柜内部局部放电检测与分析  

Detection and Analysis of High Voltage Switchgear Internal Partial Discharge Based on Multiple Detection Technology

作　　者：李永祥[1] 王天正[1] 晋涛[1] 陈昱同[1] 王志鹏[1] 李艳鹏[1] 

机构地区：[1]国网山西省电力公司电力科学研究院,太原030001

出　　处：《高压电器》2017年第1期45-50,共6页High Voltage Apparatus

摘　　要：为实现高压开关柜的安全可靠运行,针对某开关柜内部局部放电的案例,采用暂态地电压(TEV)检测技术、超声波(AE)检测技术及特高频(UHF)检测技术对开关柜进行检测并发现存在局放信号;利用平分面法从横向、纵向及深度三维空间对局放源的位置进行了定位;依据相关的检测数据、讨论分析了局放的幅值、类型及原因,经处理后局放信号消失。研究表明:多种检测技术和超高频法定位技术对开关柜内部局部放电故障的检测和准确定位提供了现场应用基础。In order to achieve the safety and reliability operating of high voltage switchgear, the internal discharge of switchgear are researched by using the TEV, AE and UHF detection technology based on the partial partial discharge case. The location of partial discharge are accomplished by using the method of divide surface from the horizontal, vertical and depth in the space and the ultrahigh frequency devices. Base on the related testing data, the amplitude, types and reason of partial discharge are discussed, and it provide a practical application basis for detection and accurate location the internal partial discharge of switchgear.

关 键 词：高压开关柜 局部放电 暂态地电压 超声波检测 特高频检测 

分 类 号：TM591[电气工程—电器]