发电机组保护动作跳闸原因分析及处理

Cause Analysis and Treatment on Generator Unit Short-circuit Failure

介绍某电厂2号1 000MW发电机组保护动作跳闸事故的经过,通过分析故障录波波形、保护动作和现场检查情况,认为发电机出线小室异物引起定子内部发生三相短路是事故的主要原因,并提出处理措施及建议。

This paper shows the process of a generator shortcircuit fault, analyzes the waveform of the memory equipment, the action of protection equipment, together With the check on site,considers that the main reason is generator line secondary room eyewinker leading to three phase short-circuit,also descripts the settlement and suggestions.