电动机零序断相综合保护措施研究  

On Motor Zero-sequence Phase Failure Protection Measures

作　　者：邵阿红[1,2] 叶永卫[2] 

机构地区：[1]陕西师范大学,陕西西安710062 [2]山西水利职业技术学院,山西运城044000

出　　处：《榆林学院学报》2012年第4期13-15,共3页Journal of Yulin University

摘　　要：众所周知,在现代的工农业生产中,电动机得到了广泛的应用。但是,由于断相运行造成电动机被烧毁的比例很高,根据有关资料,我国因断相而烧毁电机占绕组修理量的70%以上。为防止电动机断相运行,避免给生产带来影响,减少经济损失,因而断相保护就显得十分重要。内容阐述了断相发生的原因及其带来的危害,分析了当前一些断相保护方法的缺陷,并以零序电压为出发点,提出了三角形接法电动机和星形接法电动机综合性的断相保护方案。As we all know that the electric motor has been widely used in modem industrial and agricultural pro- duction. However, it has a higher proportion to the electric motor being burned in Spite of phase interruption but the electric motor is always running. According to the relevant information, More than 70% of the burned electric motor, because of phase interruption, is of the winding repairing quantity in China. In order to prevent the motor phase interruption running, avoid the influence to production and reduce the economic loss, the phase interruption protection to the electric motor is very important. In this article we descript the reason and the harm to electric mo- tor because of phase interruption, and analyze some kinds of the defects to phase interruption failure protection now. With zero - sequence voltage as the starting point, the paper puts forward a new phase interruption protection method to the electric motor based on the triangle connection motor and star connection motor.

关 键 词：电动机 断相保护 零序电压 

分 类 号：TM32[电气工程—电机]