Design And Research Of New 66kV Power Transmission And Transformation Project At Arxan Port

With the rapid growth of social economy and the continuous improvement of people's living standards,the demand for electric energy in human society has also continued to increase.From rice cookers and microwaves,to computers and mobile phones for daily office entertainment,to electric vehicles and high-speed trains for daily travel,people can not live without electricity,and the operation of various heavy machinery in factories can not live without electricity.Irrigation in agricultural production is more dependent on electricity.The construction of power network is directly related to social and economic development.As a place where voltage and current are exchanged and electricity is received and distributed in the power system,the design of substation is particularly important to the construction of power network.Based on the current situation of power grid in Arxan area,this paper designs the 66 kV substation in port area.The design includes the primary design of power system,the secondary design of substation,the civil construction of substation,the fire protection part,the extension part of 66 kV outlet of Arxan 220 kV substation and the design part of transmission line.Firstly,this paper elaborates the background and significance of the research,and analyses the research status and development trend at home and abroad.Then,according to the current situation of the power grid in the Arxan area and the power grid in the port power supply area,the main deformation mode and parameters are determined,and the short-circuit current calculation is carried out.The power system scheme is put forward.The main wiring is selected by comparing the schemes,the main equipment is selected,and the electric layout and lightning protection grounding of the station area are designed one by one.The design of substation secondary system covers dispatching automation,system and station communication,substation automation and so on.Since there is no reserved port 66 kV substation exit for the Arxan 220 kV substation,the design of this design is synchronized with the 66 kV port exit of the Arxan 220 kV substation;Based on the actual situation,we conducted field surveys and research and analysis,and comprehensively considered and analyzed the length,economy,construction,and operation of the routes to ensure the safety,reliability,and economic rationality of the power line paths.Then carry out guidance,ground line selection,insulation cooperation,lightning protection grounding and so on.This design covers all the areas involved in the construction of the port 66 V substation,meets the construction needs of the port substation,and also achieves the purpose of practical application.