摘要
某电厂135MW燃机发电机两套发电机保护3U0定子接地保护动作并甩负荷停机,检查发电机定子B相接地。故障发生后,通过分析事故经过,确认发电机装配存在安全隐患是造成此次定子接地故障的主要原因。本文针对故障原因提出了相应的防范措施,有效降低事故发生概率及减小事故范围及程度。
135MW gas turbine generator with two sets of generator protection 3 U0 stator ground fault protection action and load shedding down, check the generator stator to B. After a fault happens, through the analysis of accident, make sure the generator assembly exists security hidden danger is the main cause of the stator ground fault. The cause of the problem, this paper puts forward the corresponding precautionary measures, effectively reduce the scope and degree of accident probability and reduce accident.
