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历时两年突破!国内首次成功应用“小飞人”工法实现750千伏同塔双回相间带电作业
Zhong Guo Neng Yuan Wang· 2025-11-06 04:16
10月31日,在甘肃省兰州市红古区海石湾镇,国网甘肃超高压公司在750千伏郭武Ⅱ线 同塔双回中相首次采用"小飞人"工法开展等电位带电作业,成功补装750千伏郭武Ⅱ线146号 中相连接螺栓开口销,填补了国内750千伏同塔双回线路中、上相带电作业的技术空白,为 全国带电作业提供技术支撑,标志着超特高压电网带电作业全面进入机械化、智能化的时 代。 750千伏郭武Ⅱ线起于青海省互助县郭隆变电站、止于甘肃省永登县武胜变电站,作为 省间联络线,连通着青海电网与甘肃电网,有效提升新能源汇集、省间互补互济和±800千 伏青豫直流清洁能源外送能力,增强甘肃中部地区电网承载力。 750千伏同塔双回线路中相处于线路核心位置,作业环境存在强电场、安全距离要求严 苛等难点,面对这些难题,国网甘肃超高压公司与中国电科院联合对750千伏同塔双回相间 的最小安全距离、组合间隙等进行多次模拟、仿真及现场验证,首次得出750千伏同塔双回 线路从下相穿越之中相、上相最小组合间隙的关键数据,并完成了0至5000米不同海拔高度 相间最小组合间隙数据校正,为高海拔地区750千伏相间带电作业的开展奠定了安全、科学 双基础。 "相较于传统方法,该作业模式将 ...
技术攻关,练就带电作业新技能(工匠绝活)
Ren Min Ri Bao· 2025-06-11 08:18
Core Viewpoint - The article highlights the innovative contributions of Tong Ming, a senior technician at State Grid Anshan Power Supply Company, in enhancing the safety and efficiency of live-line work through the development of new tools and technologies [1][2][4]. Group 1: Innovations in Live-Line Work - Tong Ming has developed a "ground-hanging self-locking sliding car" that improves safety and efficiency by reducing the time for hanging transmission ropes by over 50% [1]. - The introduction of drone-based X-ray non-destructive testing technology allows for the inspection of hydraulic tension clamps, reducing the inspection time from over two hours to approximately 10 minutes [2]. Group 2: Team Leadership and Collaboration - Tong Ming established an innovation studio in 2019, which includes 24 young employees focused on solving practical issues in power transmission maintenance [2]. - The innovation studio has received recognition, being awarded the provincial-level employee innovation studio title by the Liaoning Provincial Federation of Trade Unions in October 2023 [2][4]. Group 3: Achievements and Recognition - The innovation studio has accumulated 10 national invention patents and 41 utility model patents, along with 17 awards at the provincial and ministerial levels [4]. - Tong Ming emphasizes the importance of inheriting craftsmanship while innovating work techniques, aiming to inspire more young people to contribute to power transmission [4].