电动机的反时限保护特征在企业的运行分析

摘要

论述了电机的反时限保护在企业的运行特征，并针对本钢应用的电磁型GL反时限继电器存在的问题进行剖析，并详细介绍了目前广泛应用的电动机的微机型综合保护装置，并以国内两个系列产品作为例子进行分析论述，阐明了微机型综合保护装置在企业实际工况中的应用和注意的问题。%The operation characteristics of motor inverse-time protection in steel enter-prises were discussed. Application problems of the existing electromagnetic GL inverse-time relays in Benxi Steel were analyzed. Computerized comprehensive protection device for motor currently widely used were introduced in detail; and attention points in application of the computerized comprehensive protection device under the actual operation conditions of steel companies were presented, taking two types of domestically made protection devices as exam-ples.