摘要
在工程现场,气体绝缘开关设备局部放电带电检测被应用了很多年,已证明其可以较好地为气体绝缘开关设备绝缘故障提供重要的检测技术支撑。根据相关资料的气体绝缘开关设备故障统计情况,发现绝缘故障仍是占最大比例。本文从日常应用、实验室研究、在线监测3个方向,对目前气体绝缘开关设备局部放电带电检测的应用现状进行概述;利用西湖电子气体绝缘开关设备模拟试验平台,分别模拟了4种典型放电类型进行特高频和超声波测试对比,并对现场中发现的一例气体绝缘开关设备异常声响进行应用情况介绍;最后对气体绝缘开关设备局部放电带电现场应用进行总结,对未来发展的重点方向进行展望。
The on-line detection of partial discharge in gas insulated switchgear(GIS)has been used in field for many years,which proves that it can provide important detection technology support for GIS insulation fault.According to the statistics of State Grid GIS faults in recent ten years,it is found that insulation faults still account for the largest proportion.This paper also summarizes the current application status of GIS partial discharge on-line detection from three directions:daily application,laboratory research,and online monitoring application.Four typical discharge types are simulated by Hangzhou Xihu Electronic Institute GIS simulation test platform to test and compare with ultra high frequency(UHF)and ultrasonic detection.An abnormal GIS sound found in the field is introduced.Finally,the paper summarizes the field application of the on-line detection of partial discharge in GIS and prospects the future development direction.
作者
刘财明
Liu Caiming(Red Phase INC,Xiamen,Fujian 361001)
出处
《电气技术》
2020年第10期117-122,共6页
Electrical Engineering
关键词
气体绝缘开关设备故障
带电检测
特高频
超声波
gas insulated switchgear(GIS)failure
on-line detection
ultra high frequency(UHF)
ultrasonic
