摘要
局部放电带电检测是诊断GIS绝缘状态最有效的方式之一。在分析特高频法和超声波法各自优缺点的基础上,提出了适合现场应用的声电联合检测法。在一起220 k V GIS现场案例中,运用方法对GIS内部缺陷进行了快速、准确的定位。随后的停电解体验证了检测结果的正确性,为GIS局放带电测试技术的应用积累了宝贵经验。
Live detection of partial discharge is one of the most effective methods for GIS insulation diagnosis. After analyzing the advantages and disadvantages of UHF method and ultrasonic method,this paper presents an approach combining both methods for field application.In a 220 k V GIS on site,internal defects in the GIS are located quickly and preciously in the new method. The following service interruption and disintegration verifies the correctness of the detection results,thus providing valuable experience for live detection of partial GIS discharge.
出处
《电气自动化》
2016年第2期106-108,114,共4页
Electrical Automation
关键词
GIS
局部放电
带电检测
声电联合
故障定位
GIS
partial discharge
live detection
combination of UHF and ultrasonic methods
fault location
