摘要
文章针对皖能铜陵发电公司#3机组发生的三次跳机事故中的快切动作过程进行分析,通过分析及试验论证了电泵联锁启动过程中发生快切,引起6kV母线电压降低,从而导致400V电压降低,400V辅机控制回路的交流接触器返回后辅机跳闸的原因,并提出了相应的处理方法。
This paper analyzes the fast switch action process in the three accidents of the generator tripping happended in Wenergy Tongling Power Generation Co ., Ltd.#3 unit.Through the analysis and the test , it is proved that the reason of the fast switch action during the electric pump interlock startup , causing the 6kV bus voltage to reduce , then resulting in the decrease of the 400V voltage, the auxiliary generator tripping after the AC contactor return of the 400 V auxiliary generator control circuit .And the corresponding processing methods are put forward .
出处
《安徽电气工程职业技术学院学报》
2014年第3期30-35,共6页
Journal of Anhui Electrical Engineering Professional Technique College
关键词
快切
电泵
残压
交流接触器
辅机跳闸
fast switch
electric pump
residual voltage
AC contactor
auxiliary generator tripping
