transformer solution for substation 220kv [Jan 07,2016]
The long-range planning of the main transformer in 220kV substation is 4* 240MVA, the capacity of the main transformer in present phase is 3*240MVA, Outdoor layout: double-bus configuration is adopted for the main electrical connection of future 220KV equipments, double-bus configuration is also used in present phase. The plan of 220kV outgoing line is 6 rounds,the present phase is 3 rounds. double-bus configuration is adopted for the main electrical connection of future 110kV equipments, double-bus configuration is also used in present phase. The plan of 110kV outgoing line is 12 rounds, the present phase is 8 rounds. single busbar 3-section wiring is adopted for the main electrical connection of future 35KV equipments, single busbar sectionalized wiring is used in present phase. The plan of 35kV outgoing line is 20 rounds,the present phase is 10 rounds of outgoing lines .
The length of the substation from east to west is 78meters,the width from south to north is 98meters. the door is towards north. the production complex building of 220kv substation is located at the east side of the substation, it is a two-floor building.the production complex building of 110kV substation is located at the west of the substation. The main transformer is at the east of the 110kV production complex building and it is arranged closely to the production complex building. The underground layer of the production complex building is cable layer.
This substation is non-attended substation,which adopts A3-3 scheme of "State Grid Company transmission and transformation project general design 110(66) ~750kV intelligent substation part"2011 vision