摘要
随着大容量机组的广泛应用,其继电保护配置对机组与电网的安全十分重要。本文以发电机变压器组继电保护为研究对象,讨论了标准规程中关于发变组保护配置原则与保护用互感器选型,对比工程应用中的配置方案,分析了发变组部分重要保护的原理及特性,并提出了相应建议。同时对工程案例的发变组保护配置进行了分析,可为1 000 MW机组保护配置提供有价值的参考。
With the wide application of high-capacity units,the relay protection configuration becomes extremely important for the safety of units and power grid.Taking the relay protection of generator-transformer unit as the research object,this paper discusses the principles of generator-transformer unit protection configuration and the type selection of mutual inductor used for protection in the standard procedures and makes a comparison among the configuration plans in engineering applications.And then the paper analyzes the principle and characteristics of the important protection of generator-transformer unit and puts forward corresponding suggestions.Finally the paper also analyzes the protection configuration of the generator-transformer unit in an engineering case,which provides a valuable reference for the protection configuration of 1 000 MW unit.
作者
康逸群
游力
李震宇
宋杨
KANG Yiqun;YOU Li;LI Zhenyu;SONG Yang(Electric Power Research Institute,State Grid Hubei Electric Power Co.Ltd.,Wuhan Hubei 430077,China;Hubei Fangyuan Dongli Electric Power Research Co.Ltd.,Wuhan Hubei 430077,China)
出处
《湖北电力》
2018年第2期32-35,40,共5页
Hubei Electric Power
基金
国网湖北省电力有限公司科技项目(项目编号:52153214001L)
关键词
发电机变压器组
继电保护配置
双重化配置
generator-transformer unit
relay protection configuration
double configuration
