Design Of110kV Xinan Power Transmission Project

Substation is the important part of power system, thus, the safe and reliable operation of substations is closely related to the development of national economy. Therefore, the rational design of the study substations has the theoretical value and practical significance.With the economic development needs of Haiyang city, in accordance with the" State Grid Corporation of power transmission and transformation engineering feasibility study on the regulations of content and profundity (Trial)", and on the basis of" Yantai grid " Twelfth Five-Year" development program and2030distant view of Haiyang city" and the "Twelfth Five-Year " development plan of Haiyang grid, this paper demonstrates the necessity to construct the110Kv Xinan power transmission project and the construction scale of the project is also provided. Meanwhile, the reasonable production period is determined and the access system scheme and the twice scheme related to the project are proposed. The path selection of the line and project envisaged are also provided. At last, the investment estimation of the project is provided in this paper.First, this paper analyzes the current situation of Haiyang power system, the load forecasting and site survey is done for the power system. In-depth analysis of typical design of the110kV project, the design of Xinan110kV power transmission project is completed. The location of the substation, the scheme of access system, the construction scale of the substation and the the communication program are described in detail. Besides, the equipments of the substation are selected and the layout of the construction is provided. Meanwhile, the path selection of the transmission line, the selection of the steel tower wire and cable and the determination of the steel tower basis form are completed. According to the building scale and engineering, investment estimates of the project and investment analysis are done. With this, the necessity to construct the project, the technical feasibility and economic reasonableness are concluded.At present, the preliminary design of the project has won the provincial approval of the company, and the project will be into the specific design, construction phase. Many practical problems of the project are solved in this paper, it has the important guidance and practical significance for the construction of power transmission project.