摘要
应用对称分量法对三相异步电动机断相运行进行了理论分析,得出断相运行时电动机电磁转矩和电流的变化情况,针对正序定于电流和负序定子电流的关系,提出了简便易行的断相运行保护判据。
Using symmetry,a theoretical analysis has been made on the Three-phase asynchronous motors running
with one phase cut off. By the change of electromagnetic moment and the current of the motor, the running criterion
of protection. with one phase cut down has been put forward, according to the relationship between the positive state
current and negative state current.
出处
《河北理工学院学报》
2004年第2期84-87,共4页
Journal of Hebei Institute of Technology
关键词
对称分量法
三相异步电动机
断相运行
电流
负序定子电流
symmetrieal component method
three—phase asynchronous motors
one phase cut down running
current
