Introduction about Compilation of Typical Secification for Combined Electrical Equipment in 110～500kV Substation in SGCC

The paper introduced the basic conditions of combined electrical equipment in typical specification for 110～500kV substation.The scope of type for combined electrical equipment in typical specification,and the major principles,scope of contents and some major technical problems for compiling typical specification were explained.The conditions above were introduced and analyzed from the classification of equipment parameter,optimization of project design and construction aspect,and combined with production and operation of SGCC system,characteristics of project,and the typical design of substation.