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Typical application of redundancy technology in substation automation system

LIU Ju,ZHENG Wei,LIU Xiao-ming(Beijing Sifang Automation Co.Ltd,Beijing 100085,China)  
This paper introduces the redundancy configuration of substation automation system and the concept of redundancy.Unit redundancy is more reliable and more costly than system redundancy.In the mainframe redundancy,unit redundancy is implemented by service redundancy instead of whole mainframe redundancy.In network redundancy,device of station layer identify working network of bay device instead of working network of the whole system to implement unit redundancy.It also cites the cases and typical application of system redundancy and unit redundancy for telecontrol channel,the technical requirement of power supply redundancy and synchronization source redundancy.It is necessary to select the favorable redundancy mode in the design of substation automation system.
【CateGory Index】: TM76
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