GIS组合电器内部放电诊断试验和原因探讨  

Diagnosis Test and Cause Exploration of Internal Discharge in GIS Combination Electrical Appliances

作　　者：邵珠雪 SHAO Zhuxue

机构地区：[1]湖南湘能电力设备监造有限责任公司,湖南长沙410000

出　　处：《电力系统装备》2024年第5期46-48,共3页Electric Power System Equipment

摘　　要：文章针对GIS组合电器内部放电诊断试验和原因,采用事件分析的方式,介绍内部放电诊断试验,阐述内部放电的原因及解决措施。结果表明,通过超声波、特高频局放检测技术联合诊断,明确放电位置为灭弧室,返厂解体检查发现内部合闸电阻传动部位螺栓螺母脱落,引起悬浮电位放电,和检测技术所得结论一致,证实了联合检测的有效性及可靠性。This article focuses on the internal discharge diagnosis test and its causes of GIS composite electrical appliances.Using event analysis as the starting point,elaborates on the causes and solutions of internal discharge.The results showed that through the joint diagnosis of ultrasound and ultra-high frequency partial discharge detection technology,the discharge position was determined to be the arc extinguishing chamber.Upon returning to the factory for disassembly inspection,it was found that the bolts and nuts of the internal closing resistor transmission part had fallen off,causing suspended potential discharge.This is consistent with the conclusion obtained from the detection technology,confirming the effectiveness and reliability of the joint detection.

关 键 词：GIS组合电器 带电检测 局部放电 诊断试验 原因 

分 类 号：TM595[电气工程—电器]