特高压“心脏”保卫战

Core Viewpoint - The successful repair of the Suzhou converter station, crucial for nearly one-fifth of Suzhou's power supply, was completed in five days with zero defects, showcasing the dedication and resilience of the workforce under extreme conditions [1][4]. Group 1: Incident Overview - On June 30, operational personnel at the Suzhou converter station detected a rising trend in gas levels, indicating potential overheating issues in the converter transformer, which is vital for the station's operation [4]. - The Suzhou converter station is a key hub in the national "West-to-East Power Transmission" strategy, with a maximum transmission capacity of 7.2 million kilowatts [4]. - Following the detection of the fault, an emergency repair operation was initiated, with a target to complete the repairs within five days due to peak electricity demand [4][5]. Group 2: Emergency Response - The emergency response team, comprising 39 professionals and various vehicles, was mobilized within half an hour of receiving the directive [4]. - By July 2, the faulty converter was successfully switched to maintenance mode, and an emergency repair plan was developed, including 13 risk prevention measures [5]. - The team faced significant challenges, including the need to replace a 481-ton transformer while ensuring the safety of surrounding equipment [8]. Group 3: Repair Process - The repair process involved extensive testing and verification of the replacement transformer, which was completed within 12 hours, demonstrating the team's efficiency and commitment [8][10]. - The dismantling of the faulty transformer began on July 3, with careful coordination to avoid damage to other equipment [10]. - By July 7, the repair work entered the final inspection phase, emphasizing the importance of detail and safety in the completion of the project [10]. Group 4: Post-Repair Actions - Following the successful energization of the converter station, ongoing inspections and risk assessments will continue to ensure the reliability of the power supply during peak summer demand [11].