小电流选线系统在应用中常见问题的解决措施  

Solution of Several Common Problems in Application of Small Current Line Selection System

作　　者：屈亚军 葛蕊 Qu Ya-jun;Ge Rui

机构地区：[1]陕西电力建设集团有限公司,陕西西安710075

出　　处：《电力系统装备》2021年第15期80-81,共2页Electric Power System Equipment

摘　　要：随着微机保护设备在电力系统广泛、深入应用,小电流选线装置的使用日益增多,工程人员在小电流选线装置工程设计、安装调试方面遇到了各类问题,积累了一定的经验,基于此,就小电流选线系统在实际应用中常见的问题展开讨论,主要从零序互感器容量的影响与选择、安装位置的影响与选择、接线方式的影响与选择3个层面进行分析和探究,并且给出相应的解决方案。With the extensive and in-depth application of microcomputer protection equipment in power system,the use of small current line selection device is increasing day by day.Engineers have encountered various problems in the engineering design,installation and commissioning of small current line selection device,and accumulated certain experience;Size of zero sequence transformer and installation position of small current line selection device;The selection of equipment wiring circuit and other aspects are analyzed one by one,and the general solving principles of the above problems are given,which plays a guiding role in engineering practice.

关 键 词：小电流选线 零序互感器 容量 安装位置 设备接线 

分 类 号：TM862[电气工程—高电压与绝缘技术]