一起110kV电容式电压互感器二次电压异常的故障分析  

Fault Analysis of Secondary Voltage Anomaly of 110kV Capacitive Voltage Transformer

作　　者：姚锡钦[1] YAO Xiqin(Zhejiang Industry&Trade Vocational Collage,Wenzhou 325000,China)

机构地区：[1]浙江工贸职业技术学院,浙江温州325000

出　　处：《变压器》2024年第6期67-70,共4页Transformer

基　　金：浙江工贸职业技术学院“双高”建设(4133012791)。

摘　　要：针对某220kV变电站内一起110kV电容式电压互感器二次电压异常故障,介绍了电容式电压互感器的特殊结构和工作原理,结合故障现象、试验数据、设备解体检查情况,综合分析、判断其故障原因,系电压互感器中压电容的部分电容单元击穿短路造成二次电压偏低,并对设备制造和运维方面提出了改进措施和工作建议。In view of the secondary voltage abnormal fault of a 110kV capacitive voltage transformer in a 220kV substation,the special structure and working principle of the capacitive voltage transformer are introduced,and the fault causes are comprehensively analyzed and judged by combining the fault phenomenon,test data and equipment disassembly inspection.The secondary voltage is low due to the breakdown and short circuit of some capacitor units in the middle voltage capacitor of the voltage transformer.

关 键 词：电容式电压互感器 介质损耗 分析 建议 

分 类 号：TM406[电气工程—电器]