电压互感器反充电故障分析及预防措施  

Analysis and Preventive Measures of Voltage Transformer Reverse Charging Fault

作　　者：张富超 张世强 芮建勋 顾笑明 王延伸 ZHANG Fuchao;ZHANG Shiqiang;RUI Jianxun;GU Xiaoming;WANG Yanshen(Hebei Power Transmission&Transformation Co.,Ltd.,Shijiazhuang 050051,China)

机构地区：[1]河北省送变电有限公司,河北石家庄050051

出　　处：《河北电力技术》2023年第3期56-59,共4页Hebei Electric Power

摘　　要：针对一起由于误合二次电压并列开关引起的电压互感器反充电故障,介绍二次电压并列回路原理,结合后台监控信息和故障录波器故障波形图进行故障原因分析,认为误合二次电压并列开关以及二次设备触点变换与一次设备状态改变不同步是该故障发生的主要原因,并提出具体的预防措施。In response to a voltage transformer reverse charging fault caused by mis-closing secondary voltage parallel switch,the principle of the secondary voltage parallel circuit is introduced.Based on the background monitoring information and the fault waveform diagram of the fault recorder,the fault cause analysis is carried out.It is found that the main reason for this fault are the mis-closing of the secondary voltage parallel switch and the asynchronous change of the contact point of the secondary equipment and the state change of the primary equipment.Finally,specific preventive measures are proposed.

关 键 词：电压互感器 并列开关 反充电 

分 类 号：TM77[电气工程—电力系统及自动化] TM451