某变电站操作合闸后电压互感器烧毁的技术分析及改进措施  

Technical Analysis and Improvement Measures for the Burnout of Voltage Transformers Induced by Operation Closing in Certain Substation

作　　者：沙玉洲 万华 林浩凡 李淑兰 初颖 孙晓黎 SHA Yuzhou;WAN Hua;LIN Haofan;LI Shulan;CHU Ying;SUN Xiaoli(DaLian No.1 Instrument Transformer Co.,Ltd.,Dalian 116200,China;Electric Power Research Institute,State Grid Jiangxi Electric Power Co.,Ltd.,Nanchang 330096,China;Electric Power Research Institute,State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310014,China)

机构地区：[1]大连第一互感器有限责任公司,辽宁大连116200 [2]国网江西省电力有限公司电力科学研究院,江西南昌330096 [3]国网浙江省电力有限公司电力科学研究院,浙江杭州310014

出　　处：《变压器》2024年第11期72-75,共4页Transformer

摘　　要：某110kV变电站内带电容器的10kV电缆线路改造结束送电合闸操作后,出现了电压互感器烧毁故障。本文作者对该事故进行了技术分析并提出了改进措施,为同类工程建设、改造、检修与维护过程提供技术参考,避免同类事故再次发生。The author of this article conducts a technical analysis on the voltage transformer burnout fault that occurred after the power transmission and closing operation of a 10kV cable line with capacitors in a 110kV substation,and proposes improvement measures.This can provide technical reference for similar projects in construction,renovation,maintenance,and repair processes,and also prevent the same accident from happening again in similar projects.

关 键 词：电压互感器 电容器 直流分量 励磁涌流 

分 类 号：TM406[电气工程—电器]