Design of electrical primary section of 220kV substation in Tiexi District, Haicheng City

The main functions of the 220kV substation in Tiexi District, Haicheng City are to receive, distribute, and transfer electrical energy in the power system. As an basic but significant part of the construction of substations, the design scheme of the electrical main wiring not only directly affects the stability and flexibility of operation, but also directly determines the selection of electrical equipment and the configuration of various protections. It is a crucial factor for reasonable investment in the electrical equipment of substations. The paper conducts an overall analysis and research on the substation through raw data, determining the design direction, design ideas, and planning of the substation; Using known existing conditions, complete the total load calculation, reactive power compensation calculation, and determine the selection of the main transformer for verification. The selection of the main wiring scheme that best fits the current situation of Tiexi District in Haicheng City has achieved a complete electrical primary design of the substation.