The Design Of 110kV Dongxiaojing Substation And Transmission Project

With the rapidly increasing pace of urbanization of Beijing’s Chaoyang district,the districts outside the fifth ring have gradually become a large residential area docking with urban core area.Meanwhile,with the continuous improvement of residents’ living standards and the increasing requirement for high quality life,the demands for electricity and power supply reliability are increasing correspondingly.It is in such a situation that the 110kV Dongxiaojing substation and transmission project has been designed.Firstly,background and significance of the subject are introduced,the design and research bases of the 110kV Dongxiaojing substation and transmission project are described,the project overview and main contents of this paper are presented.By means of analyses of the current load,load demand and local grid status of the project construction area,the construction building programs of the 110kV Dongxiaojing substation is determined.The system scheme is deeply researched in combination with the long-range prospects.Through strict analysis and calculation,the relevant designs of power system primary and secondary equipments are configured reasonably.The reasonable 110kV Dongxiaojing substation site is chosen,and the detailed project assumption of the electrical primary and secondary parts is proposed after sufficient demonstration and comprehensive analysis.The power transmission line path is selected and the plan for detailed overhead line and cable parts is given.Finally,the investment estimation analysis of the substation and transmission project are performed,which include the detailed project costs comparison and difference reason analysis.The feasibility and rationality of the project technical solution are demonstrated.