摘要
运用特高频、超声波和高频局部放电检测3种常用电力电缆检测方法对一起110 kV气体绝缘金属封闭开关设备(Gas Insulated Switchgear,GIS)电缆终端缺陷进行分析,综合高频局部放电定相法和特高频时差定位法进行诊断与分析,并通过停电检修验证了缺陷分析结论。对今后处理类似缺陷具有一定参考意义。
The ultra high frequency(UHF),ultrasonic and high-frequency partial discharge detection methods are the three most commonly used detection methods for power cables.In this paper,these three methods are used to analyze the defect of a 110 kV gas insulated switchgear(GIS)cable terminal,a high-frequency partial discharge phasing method and a UHF time-difference positioning method are comprehensively used for diagnosis and analysis,and the defect analysis conclusion is verified by power failure maintenance.It has certain reference significance for dealing with similar defects in the future.
作者
白皓
栾茜
赵祥龙
焦伟
孙鹏
BAI Hao;LUAN Qian;ZHAO Xianglong;JIAO Wei;SUN Peng(State Grid Yantai Power Supply Company,Yantai 264000,China;State Grid Linyi Power Supply Company,Linyi 276000,China)
出处
《山东电力技术》
2020年第6期41-46,共6页
Shandong Electric Power
关键词
GIS电缆终端
局部放电
高频定相
特高频定位
GIS cable terminal
partial discharge
high-frequency phasing
UHF positioning
