发电机突然部分或全部失去励磁,是发电机励磁回路常见的故障之一。首先,分析了造成失磁故障的常见原因及失磁后发电机参数的变化;其次,论述了失磁给发电机和电力系统造成的危害;最后,给出了机组失磁后的处理原则。

The synchronous generator running under loss of excitation (LOE) condition is a special running way.in this paper,firstly,the normal reason of LOE is analyzed.Secondly,the effect of LOE bring to generator and electric power system is discussed;Thirdly,how to deal with the LOE fault are given in this paper.