Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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500 kV带电更换悬垂串用电动提线装置的研制与应用

来源:电工电气发布时间:2025-08-22 08:22浏览次数:0

500 kV带电更换悬垂串用电动提线装置的研制与应用

潘灵敏,王海亮,宋恒东,鲍奕,张瑞曦
(国网江苏省电力有限公司超高压分公司,江苏 南京 211102)
 
    摘 要:随着带电作业技术发展,带电更换超高压输电线路悬垂绝缘子串已成为一种常规技术手段。对 500 kV 输电线路传统带电更换悬垂串的方法和工程实践经验进行了总结,分析得出机械丝杠存在操作费力、工效低以及液压丝杠存在漏油、难维护等弊端。研制了一种电动提线装置,其在现有四分裂提线器上加装电动驱动装置,形成一体化结构,现场实际应用表明,该电动提线装置具有动力输出稳定、噪音低、提升过程平稳、工效高等优点,具备近端操控和远端遥控功能,满足带电作业安全性和高效性的需求。
    关键词: 带电作业;绝缘子;丝杠;电动提线装置
    中图分类号:TM216 ;TM755     文献标识码:B     文章编号:1007-3175(2025)08-0066-04
 
Development and Application of an Electric Wire Lifting Device for Live
Replacement of 500 kV Suspension Insulator Strings
 
PAN Ling-min, WANG Hai-liang, SONG Heng-dong, BAO Yi, ZHANG Rui-xi
(State Grid Jiangsu Electric Power Co., Ltd. Extra-High Voltage Branch Company, Nanjing 211102, China)
 
    Abstract: With the advancement of live-line working technology, live replacement of suspension insulator strings on ultra-high voltage(UHV)transmission lines has become a routine technical practice. This paper summarizes traditional methods and engineering experiences for live replacement of 500 kV suspension insulator strings, identifying drawbacks such as labor-intensive operation and low efficiency of mechanical screw jacks, as well as oil leakage and maintenance difficulties in hydraulic screw jacks. To address these issues, an electric wire lifting device was developed by integrating an electric drive unit into existing quad-bundle conductor lifters, forming a unified structure.Field applications demonstrate that the device offers stable power output, low noise, smooth lifting processes, and high efficiency. It supports both local control and remote operation, meeting the safety and efficiency requirements of live-line working.
    Key words: live-line working; insulator; screw jack; electric wire lifting device
 
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