摘要
通过对机组PLU逻辑保护异常动作导致机组跳闸事件的分析,归纳了保护应用中的问题。根据东汽机组甩负荷试验时超速逻辑保护动作记录数据分析,对取消机组PLU保护或对保护逻辑进行修改的可行性进行了论证,给出了取消或保留PLU保护的条件。
Through the analysis of the unit tripping accidents which resulted from abnormal action of unit PLU logic protection,this paper summarizes the protection application problems.According to the analysis on overspeed logic protection action records from load dump tests of the DongQi units,the feasibility of PLU protection cancellation or its logic modification are demonstrated and the relevant conditions as to whether to cancel or maintain PLU protection are given.
出处
《浙江电力》
2012年第1期52-54,共3页
Zhejiang Electric Power
关键词
PLU保护
必要性
探讨
PLU protection
necessity
discussion／
