磁平衡差动保护在高压同步电动机上的应用  

Application of Magnetic Balance Differential Protection in High Volage Synchronous Motor

作　　者：聂善峰 NIE Shan-feng

机构地区：[1]中铝工业服务有限公司,北京102209

出　　处：《有色设备》2020年第5期19-25,共7页Nonferrous Metallurgical Equipment

摘　　要：本文对磁平衡差动保护的工作原理进行了简要叙述,并与传统纵联差动保护进行了差动保护的整定计算比较,简述了磁平衡差动保护安装使用过程中的注意事项;并以某企业选矿生产线一段磨矿球磨机配套高压同步电动机保护装置采用磁平衡差动保护为例,简述了计算磁平衡差动保护定值的方法。In the present article,the working principle of magnetic balance differential protection was briefly described,and the setting calculation of the differential protection thereof was compared with that of traditional longitudinal differential protection,and the matters that need attention during the installation and use of the magnetic balance differential protection were briefly described;and the method of calculating the fixed value of the magnetic balance differential protection was briefly described,taking the supporting high-voltage synchronous motor protection device employing the magnetic balance differential protection for a ball grinding mill for primary grinding in the beneficiation production line of certain enterprise as an example.

关 键 词：磁平衡 磁平衡差动保护 纵联差动保护 同步电动机 磁平衡电流互感器 整定计算 异步电动机 

分 类 号：TM341[电气工程—电机]