母线差动保护在某500kV变电站各接线方式下的应用分析  

An Application Analysis of a 500kV Bus-bar Differential Protection in Transformer Substations with Different Connection Modes

作　　者：林键 

机构地区：[1]福州超高压输变电局,福建福州350013

出　　处：《梧州学院学报》2010年第6期61-66,72,共7页Journal of Wuzhou University

摘　　要：以某500kV变电站220kV母线差动保护改造为例,介绍了该站母线保护改造前后母线一次接线方式、母线保护接线回路的变化、软件程序变化,并分析了母线保护改造前后的优缺点,提出了合理化的建议。Taking a 220kV bus-bar differential protection reformation in a 500kV transformer substation as case,this paper describes bus-bar ＇s one-time wiring mode,the wiring circuit changes of bus-bar protection and the software changes before and after the reformation of bus-bar differential protection.Subsequently,it analyzes the advantages and disadvantages of bus-bar differential protection reformation before and after its reconstruction.Then,it puts forward some reasonable proposals for it.

关 键 词：BP-2A BP-2B 母线差动保护 

分 类 号：TM63[电气工程—电力系统及自动化]