On April 29, Gansu Lanzhou Central 330 kV power transmission and transformation project Baihe 330 kV substation (including key equipment such as switch cabinets, isolating switches, lightning arresters, vacuum circuit breakers, drop-out fuses and transformers) was officially put into operation in Chengguan District, Lanzhou City This is also the first all-indoor 330 kV substation in Gansu Province.
Gansu Lanzhou Central 330 kV power transmission and transformation project is a key construction project of Gansu Province and Lanzhou City during the 14th Five-Year Plan. It is also a power grid project that ensures safe and reliable power supply in Lanzhou City. Since the construction of this project started in December 2020, State Grid Gansu Electric Power Company has made overall planning and precise management and control, formulated a detailed construction organization plan, clarified the control nodes of various construction tasks, established a project attack team, and further promoted standardized processes and professionalization Management, mechanized construction, and strengthening progress control to ensure that the project is put into production on schedule and is excellent the first time.
Gansu Province's first all-indoor 330 kV substation has changed the previous open-air construction method. All station equipment (including switch cabinets, isolating switches, lightning arresters, vacuum circuit breakers, drop-out fuses and transformers, etc.) are built in dedicated houses, using full-scale construction. The indoor double-layer layout, including 330 kV and 110 kV substations, further improves the substation's ability to withstand meteorological disasters. At the same time, daily operation and maintenance will be safer, faster and more accurate.
It is understood that a tower crane was used to hoist construction materials during the construction of the project, achieving full coverage of the material area and working area, which improved construction efficiency; factory-based prefabricated products were used for substation walls, building walls, and facade decoration, effectively reducing construction waste. Emissions; at the same time, noise reduction and anti-seismic technical measures are adopted, and the noise environment control during construction meets international requirements; the facade construction effectively integrates Gansu local traditional cultural elements such as "Feitian" and the Yellow River to create a representative power system industrial building.
After the Gansu Lanzhou Central 330 kV power transmission and transformation project is put into operation, it will optimize the power grid structure of Lanzhou urban area, greatly improve the power supply reliability and power supply guarantee level of Lanzhou urban high-voltage distribution network, and meet the long-term socio-economic development needs of Lanzhou urban area. Electricity demand to provide energy and power guarantee for the implementation of the action of strengthening the provincial capital.