In order to speed up the pace of the construction of smart grid system,the article analyzes the characteristics of the smart grid,such as high intelligent level,strong security,etc.,introduces the characteristics of the relay protection technology,put forward the application of technology,can improve the overall construction level of power grid system,to ensure more stable and safe.Applied the relay protection technology to the smart grid can quickly respond and accurately locate the power grid faults,quickly start the protection device,cut off the fault current,avoid the fault expansion,send out the alarm signal,provide information support for the fault processing,and promote the intelligent and automatic development of the smart grid.This paper mainly analyzes the application points of relay protection technology in order to provide reference for relevant personnel.
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