四川电力2座500千伏变电站集中投运

Core Insights - The commissioning of Chengdu Airport and Huai Prefecture 500 kV substations marks a significant step in the construction of the Chengdu 500 kV three-dimensional double-ring network, enhancing the power supply for the Chengdu-Chongqing economic circle [1][2] - The construction of the substations is part of a broader initiative to improve the grid's capacity to meet the growing electricity demand in the eastern districts of Chengdu, Jianyang, and Jintang County, with an additional capacity of 4.8 million kVA expected [1] - The project has seen effective collaboration between government and enterprises, with the Sichuan provincial government leading the establishment of a power grid task force and signing cooperation agreements to support the construction [1] Group 1 - The two 500 kV substations were put into operation on November 8 and 11, 2023, respectively [1] - The three-dimensional double-ring network consists of a total of 15 substations, with the new substations being part of the "inner seven, outer eight" configuration [1] - The project aims to support the high-quality development of the Chengdu-Chongqing economic circle by providing a robust power supply [1] Group 2 - The construction process involved intricate coordination with existing infrastructure, including high-speed rail and highways, requiring precise execution of the project [2] - New technologies such as mechanized net sealing and visual line laying were introduced, along with the first use of heavy-duty drones for construction in the province [2] - Once the transmission line connecting the Chengdu East 1000 kV substation to the Huai Prefecture 500 kV substation is operational, it will integrate into the Sichuan-Chongqing UHV ring network, facilitating the stable and efficient delivery of clean energy from the Ganzi and Aba regions to Chengdu [2]