In this paper,the process of synchronous machine de-excitation by method of FCB current and energy transferring is analyzed,the critical de-excitation condition for successful current transferring and the proper application of the condition are given.

• 本文对同步发电机磁场断路器移能换流灭磁过程进行了分析,给出了实现成功换流灭磁的临界条件及其正确运用形式。