Abstract ：Based on the book by the mandate given by the system and the load line and the parameters,I can analysis of the progress of the proposed substation wit direction and load information..Also I can identify the main electrical wiring methods from the reliability, security, economic and other considerations. Then load calculated by the main transformer Number and capacity models, also define the station transformer capacity and models. According the maximum continuous current and short-circuit work of the calculated results of 110 KV GIS equipment, circuit breakers, Isolation switches, bus voltage transformer and current transformer and other electrical appliances for the selection. Finally, the 10 KV distribution facilities for design, thus completing the main electrical wiring stations part of the design.
