| Smart Grid is the future direction of the grid,smart grid is intelligent mainly in thegeneration, transmission, transformation, distribution, use and scheduling.As an important part of transforming part of the smart grid, the safe operation of smart grid plays an important supporting role.Intelligent substation can be achieved in situ of the information collection and sharing of information, intelligence and information application equipment online monitoring and other functions, so the construction of smart grid substation for the future development is of great significance.Smart 220 kV substation located in Rongxing Township of Panjin City with rapid economic development,large power gap in the region will be built, which not only to solve the lack of electricity in Panjin Liaoning waterfront, a serious problem, such as electricity low reliability,voltage loss will also be solved, oncebeing officially put into operation, it will bring good to the region’s economic and social benefits.In Rongxingsmart substation design process, the design of the main electrical wiring in strict compliance with national regulations;before selection for the relevant electrical current and short-circuit calculations, the use of intelligent devices in electrical equipment selection, installation of smart devices based on the traditional first components in order to achieve real-time intelligent substation information collection and monitoring functions, providing a richer data than traditional substation monitoring and control information for the design of intelligent systems; substation monitoring and control system can make the primary data of Rongxing be uploaded and processed, monitoring and control focus on the three-tier structure and control system was designed to system design, and the use of synchronous clock system in the three-tier structure is designed to ensure timeliness and accuracy of the data.Finally,thetotalbudgetfor investment projects is carried out, and corresponding economic indicators, and the specific equipment for the technical and economic analysis is studied, the feasibility of the project are demonstrated from an economic point of view. |