| According to the economic development of Suqian, this paper is to study the twelfth five-year planning of the city centre, Sucheng, Suyu and the economic development zone, including high, medium and low electric voltage grid and 220kV substations. Firstly, this paper analyses the power supply enterprise and power load. Secondly, this paper analyses the grid structure and equipment of high, medium and low voltage and puts the goal and principle of planning forward based on the analytical results. Thirdly, this paper formulates the planning of high, medium and low electric voltage. Finally, this paper is tu put the main conclusion and related suggestions of the twelfth five-year planning of urban grid in Suqian based on the position and economy prediction. Hope the research can provide a useful reference for the national twelfth five-year electric grid planning and the development of economy in Suqian. |