电动机缺相运行危害及防范措施  

The Harm and Preventive Measures of Motor Operation with Lost Phase

作　　者：任士荣 REN Shirong(The Power Plant of Laiwu Steel,Shandong Iron and Steel Group,Laiwu,Shandong 271104,China)

机构地区：[1]山钢股份莱芜分公司能源动力厂,山东莱芫271104

出　　处：《冶金动力》2021年第1期12-13,32,共3页Metallurgical Power

摘　　要：以一例系统缺相运行造成电动机烧毁案例为背景,深入剖析电动机缺相运行的危害及事故发生的原因和电流、磁场的变化情况。结合现场情况制定相应的防范措施,达到保护电动机及系统安全的目的。Based on a case of motor burning caused by system phase missing operation, this paper analyzes the harm of motor operation with lost phase, the causes of the accident and the changes of current and magnetic field. Combined with the field situation, corresponding preventive measures are drawn up to achieve the purpose of protecting the motor and system safety.

关 键 词：缺相运行 电流变化 控制回路 自动保护装置 

分 类 号：TM307.1[电气工程—电机]