摘要
为了研究GIS(全封闭气体绝缘组合电器)设备内部各种不同类型局放故障的特高频信号特征,利用实际的110 kV GIS母线段建立了一套GIS局部放电试验平台,并在试验平台上进行了高压尖端、地电位尖端、盆式绝缘子表面金属颗粒、悬浮电位放电和绝缘子内部缺陷等几类典型缺陷模型的局放试验,获取了不同缺陷的图谱资料。试验结果表明,依据特高频信号的特征,可以对不同类型缺陷进行区分。
To inveshgate the UHF signal characteristic of partial discharge due to different defects in gas insulated switchgear （GIS） , using 110 kV GIS bus establish a set of GIS partial discharge experiment platform. PD tests of three kinds of typical defects of the iligh voltage conductor tip, the ground electrode tip, the metallic particles on the disc insulator, floating potential discharge and defects in the insulator are detected. Large number of experimental data and mappings are obtained. Experimental results show that distribution modes of UHF signal characteristics can be used to recognize types of metallic defects.
出处
《贵州电力技术》
2014年第5期6-10,共5页
Guizhou Electric Power Technology
关键词
GIS
局部放电
特高频
信号特征
识别
GIS
partial discharge
UHF
signal characteristic
recognize
