西门子7UM62系列发电机保护装置90%定子接地保护逻辑优化方案  

Optimization Scheme of Siemens 7UM62 Series Generators Protection Device 90% Stator Grounding Protection Logic

作　　者：韩鑫 HAN Xing(Jiangsu Guoxin Xielian Gas Thermal Power Co.,Ltd.,214203)

机构地区：[1]江苏国信协联燃气热电有限公司,214203

出　　处：《电机技术》2023年第5期50-53,共4页Electrical Machinery Technology

摘　　要：发电机是电厂的主机设备之一,是电厂的核心设备。发电机定子结构十分复杂,且检修不易,因此必须采取有效措施来保护发电机定子,而定子接地保护就是一种有效的保护手段。文章论述了发电机90%定子接地保护原理,并针对日常维护中发现的一个90%定子接地保护逻辑缺陷,提出了相应的解决方案,优化了定子接地保护逻辑。The generator used as one of the host equipment of the power plant,is the supervisor set of the power plant.The generator stator structure is very complicated and maintenance of it is not easy,so effective measures are applied in order to protect the generator stator,therefore,the stator grounding protection becomes an effective protective means.The protection principle of the 90%stator grounding protection logic is discussed in the paper,and then,against the defect of the 90%stator grounding protection logic found during routine maintenance,corresponding solution is put forward,optimizing the stator grounding protection logic.

关 键 词：发电机 定子接地逻辑缺陷 优化方案 

分 类 号：TM306[电气工程—电机]