一起高压电动机群负序电流保护动作事件的分析  

Analysis of a negative sequence current protection action event for a high voltage motor group

作　　者：姜思敬 李金泉 

机构地区：[1]徐州华润电力有限公司,江苏徐州221000

出　　处：《电子测试》2017年第1期37-39,共3页Electronic Test

摘　　要：通过对某厂一起其他故障引起负序电流保护事故的分析,分析了电动机负序电流的产生原因和对保护的影响,同时对高压电动机的微机保护装置其负序过流保护定值的整定方法进行了探讨和改进,根据该厂6k V高压电动机具体系统和设备参数对负序保护进行了定值优化。Based on a plant with the other fault caused by negative sequence current protection accident analysis, analyzes the causes of motor of negative sequence current and its influence on protection, at the same time setting method of microcomputer protection device of high voltage motor of the negative sequence overcurrent protection setting value is discussed and improved, according to the factory 6k V high voltage motor specific systems and equipment parameters of the constant optimization of negative sequence protection.

关 键 词：负序电流 微机保护 误动 

分 类 号：TM307[电气工程—电机]