秋检护航电网安全：电力人的攻坚时刻

Core Viewpoint - The article highlights the ongoing efforts in the power grid's autumn inspection, focusing on maintenance and upgrades to ensure the stability and safety of the electricity supply during the winter peak demand period [1][2][3]. Group 1: Equipment Maintenance and Upgrades - The 220 kV Dazhulian Substation is undergoing significant upgrades, including the replacement of aging circuit breakers to enhance operational reliability and safety [2][3]. - The maintenance process involves careful disassembly of old equipment and precise installation of new devices, emphasizing the importance of accuracy to prevent operational issues [2]. - The overall upgrade project at the substation is expected to last about one month, with completion aimed by the end of the year, significantly improving the reliability of the equipment [3]. Group 2: Transmission Line Inspections - Transmission lines are described as the "arteries" of the power grid, with inspection teams actively monitoring for potential hazards during the autumn inspection [4][6]. - The use of drones has improved inspection efficiency in many areas, although some regions still require manual inspections due to specific constraints [6]. - Inspectors are dedicated to ensuring the stability of transmission lines, conducting daily inspections over several kilometers, and addressing safety hazards such as overgrown branches [6]. Group 3: Distribution Network Enhancements - The company is focusing on upgrading the distribution network to enhance power supply capabilities, particularly in rural areas experiencing increased electricity demand due to agricultural development [7]. - A new transformer with a capacity of 100 kVA is being installed to support local development, with plans for additional infrastructure including 1.3 kilometers of new 10 kV lines and eight new transformers totaling 800 kVA [7]. - The upgrades aim to improve power reliability and support rural revitalization efforts, ensuring a brighter and more comfortable living environment for residents [7].