Design Of Lingnan 66kV Substation In Yingkou

Substation is the hub between power plant and users,and has the function of distributing and transforming electric energy.It is an important link in power transmission and distribution system and a very important monitoring point in power network.Substation plays a key role in improving the reliability of power supply.In recent years,the shortage of urban land,the increasing demand for electricity,and the improvement of environmental protection standards have caused new problems in the design of substation.With the rapid development of China’s economic construction,it is particularly important to do a good job in power grid construction.To ensure the efficiency of substation and to properly solve the external problems brought about by substation construction and operation,this has become the focus and key point in substation design.Based on the deep research and analysis of the development of intelligent substation technology at home and abroad,this paper makes an in-depth study on the construction of intelligent substation based on the current situation of power system in Qingshiling area of Yingkou.And from the basic requirements,design basis,design principles,design scope,major economic and technical indicators,construction necessity to civil construction,construction and other aspects of the detailed discussion and research,the overall planning and transformation of the system is given.This paper makes a scientific and reasonable design of the first part of the Lingnan 66 k V substation in Yingkou.The advantage of a GIS substation is its compact structure,small area,high reliability,flexible configuration,convenient installation,strong security,strong environmental adaptability,and small maintenance workload.The maintenance interval of its main components is not less than 20 years.The secondary control part adopts microcomputer protection and comprehensive automatic monitoring system.Its characteristics are the advantages of fast power response,accurate action,large information transmission,and small daily maintenance,and the price is suitable and widely used.After Nanling 66 k V substation is completed and put into operation,it can ease the power supply pressure in the area and meet the increasing demand for power load.