摘要
某电厂600MW机组在发电机空载试验时发生100%定子接地保护动作,经发现设计方案无法满足机组并网前继电保护要求。通过对原来设计方案和机组启动过程出现的问题进行了分析,找出问题的原因,并对原来的设计方案进行优化,对优化后的方案进行了调试,结果表明优化后的方案较好地解决了问题,满足了机组并网前后100%定子接地保护的要求。
A 600 MW unit had 100% grounding protection movement when no-load of generator. It was found that the design can＇t satisfy the requirements of grounding protection before synchronizing of generator. The defect and the trouble of original design scheme were analyzed and the reasons for it were found. The original design scheme was optimized and debug. The result shows that the optimization of design scheme can solve the problem to satisfy the requirements of grounding protection before synchronizing of generator.
出处
《中国电力》
CSCD
北大核心
2007年第5期67-70,共4页
Electric Power
关键词
定子接地
设计方案
600MW机组
stator grounding protection
design scheme
600 MW unit
