自并励磁发电机机组励磁变故障的应急方法

Emergency Solution for Unit Excitation Transformer Faults of Self-parallel Excitation Generators

静止式自并励磁系统励磁变出现故障,在短时间内无法修复,必然使发电机组停运造成巨大损失。是否可以采用与励磁电压等级相同的市电作为励磁电源,以替代故障的励磁变,使发电机组能正常投运。通过分析以及实例证明,用相同的电压等组的市电是可以替代故间的励磁变的。

Once there are failures on the static self-parallel excitation transformer, it couldn＇t be repaired in short time, so the generators will be caused huge losses. Whether the utility with the same level voltage used as excitation power to replace to operate the generators is ok, once the excitation transformer was to fail. Analysis and examples proved to be feasible.