Research situation of 110 kV smart substation technology

Smart substation is an extension of the development of substation automation technology.And it is also a completely digital substation with process of information collection,transmission,proccessing and output.This paper is mainly describes the technical characteristics of intelligent substation construction,analyzes advantages of intelligent substation technics from major aspects of intelligent primary equipment,network secondary equipment,IEC61850 standard communication network,differences in information exchange,and discusses the development prospects of intelligent substation in meeting operation conditions of security,stability,reliability,and economy.This paper introduces unique technical characteristics of an all-optical current transformer,especially the IEC61850 standard communication protocol in the power industry,the realization of products of different manufacturers to lay the foundation for mutual communication.