985RE转子接地保护在大型机组中的应用Application of 985RE Rotator Earth Fault Protection in Large Units
鲜霄
XIAN Xiao
摘要(Abstract):
985RE数字式发电机转子接地保护在大型发电机组中应用广泛,简要介绍了985RE保护装置的软硬件构成与特点,着重对其一点接地电阻、位置,两点接地电阻、位置的检测原理进行了分析,提出了在保护整定中应当注意的问题,并针对实际应用中出现的问题,提出了相应的建议。以期对保护的应用提供有益参考,促进发电机转子接地保护运行水平的不断提高。
Earth fault protection of 985RE digital generator rotator has been widely applied in large generator units. This paper briefly presents the software and hardware architecture and the feature of 985RE protection device and particularly analyzes principles of one-point grounding resistance and the location, two-point grounding resistances and the locations. In addition, it proposes problems that need attention during protection setting and puts forward suggestions on problems in practical use, expecting to provide reference for protection application and enhance generator stator earth fault protection.
关键词(KeyWords):
发电机;转子接地;保护;985RE;经验;分析
generator;rotator earth fault;protection;985RE;experience;analysis
基金项目(Foundation):
作者(Author):
鲜霄
XIAN Xiao
DOI: 10.19585/j.zjdl.2014.03.015
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