摘要
文章简述了龙滩水电厂机组发电机注入式定子接地保护以及调速器测频方式,分析了不同PT断线方式情况下前者对后者的采样影响的原因,同时结合现场试验总结出两者的影响关系。以便研制出更合理的定子接地保护方式,或更可靠调速器测频方式,以提高大型水轮发电机组安全运行的可靠性。
The paper makes a brief introduction to the generator injection-type stator grounding protection and the governor frequency measurement method of Longtan hydropower station,analyzes the cause of sampling impact from the stator grounding protection to the governor frequency measurement method. Therefore,the impact relationships of them are concluded based on on-site tests,so as to develop more reasonable stator grounding protection method or more reliable governor frequency measurement method,by which the safe operation reliability of large hydro-genera-tor unit is improved.
出处
《红水河》
2013年第5期53-55,64,共4页
Hongshui River
关键词
定子接地保护
水轮发电机组
残压测频
龙滩水电厂
stator grounding protection
hydro-generator unit
remain voltage frequency measurement
Long-tan hydropower station
