主变铁芯接地电流在线监测装置开发  

Development of On-line Monitoring Device for Main Transformer Core Grounding Current

作　　者：谢佳伟 马云 Xie Jia-wei;Ma Yun

机构地区：[1]云南电网有限责任公司昆明供电局,云南昆明650200

出　　处：《电力系统装备》2019年第5期144-145,共2页Electric Power System Equipment

摘　　要：为及时发现并处理变压器铁芯两点及以上接地故障、减少铁芯接地故障发生时变压器继续运行造成的损失,测量主变压器铁芯接地电流是变电运行人员必须定期开展的巡视项目。本文针对常规测量手段效率低、风险大的特点,开发出主变铁芯接地电流在线监测装置。利用该在线监测装置极大缩短了作业时间,同时消除了作业过程中摔绊、磕碰导致人员受伤的风险。In order to timely discover and deal with the grounding fault of two points and above of the transformer core and reduce the loss caused by the continuous operation of the transformer when the core ground fault occurs. Measuring the grounding current of the main transformer core is a patrol project that the substation operators must carry out regularly. In view of the low efficiency and high risk of conventional measuring methods, an on-line monitoring device for the main transformer core grounding current was developed. The use of the online monitoring device greatly shortens the working time, and at the same time eliminates the risk of personal injury caused by wrestling and bumping during the operation.

关 键 词：变压器 日常巡视 铁芯接地电流 在线监测 

分 类 号：TM63[电气工程—电力系统及自动化]