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基于密封气压检测的引下线腐蚀状态监测研究

来源:电工电气发布时间:2020-10-23 15:23浏览次数:614
基于密封气压检测的引下线腐蚀状态监测研究
 
周金邢1,鲁海亮2,印希宇3,胡向红4,文习山5
(1 国网浙江诸暨市供电有限公司,浙江 诸暨 311800;2 武汉安海迅科技有限公司,湖北 武汉 430072;
3 国网四川省电力公司成都供电公司,四川 成都 610000;4 绍兴建元电力集团有限公司,浙江 绍兴 312000;
5 武汉大学 电气与自动化学院,湖北 武汉 430072)
 
    摘 要:目前国内杆塔或其他电力设施的接地引下线均未做防腐措施处理,对电力系统的安全运行造成极大隐患。提出了可用于变电站及输电线路接地引下线的腐蚀状态监测方法,并设计了基于密封气压检测的引下线腐蚀状态监测装置,将中空充气密封状态的腐蚀单元与接地引下线一同埋入土壤中,且与接地引下线保持电气连接,保证监测装置与接地引下线在同样的土壤环境中发生腐蚀,且具有同样大小的通流。通过制作实验室模型及可行性试验,验证了该装置可实现免开挖接地引下线腐蚀状态的监测功能。
   关键词:接地引下线;防腐措施;腐蚀监测;免开挖
    中图分类号:TM862     文献标识码:A     文章编号:1007-3175(2020)10-0043-05
 
Study on Corrosion Condition Monitoring of Lead-In Line Based on Embedded Corrosion Unit
 
ZHOU Jin-xing1, LU Hai-liang2, YIN Xi-yu3, HU Xiang-hong4, WEN Xi-shan5
(1 State Grid Zhuji Power Supply Company, Zhuji 3118 00, China;
2 Wuhan Anhaixun Technology Co., Ltd, Wuhan 430072, China;
3 State Grid Chengdu Power Supply Company, Chengdu 610000, China;
4 Shaoxing Jianyuan Electric Power Group Co., Ltd, Shaoxing 312000, China;
5 School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China)
 
    Abstract: At present, the grounding down conductors of poles or other power facilities in China have not been treated with anti-corrosion measures; it causes great hidden dangers to the safe operation of the power system. In this paper, a corrosion state monitoring method that can be used for grounding down conductors of substations and transmission lines is proposed, and a corrosion state monitoring device for down conductors based on sealing air pressure detection is devised, that is bury the corrosive unit in a hollow, air-filled and sealed state together with the ground down conductor into the soil, and maintain electrical connection with the ground down conductor, and moreover it should ensure that the monitoring device and the ground down conductor are corroded in the same soil environment, have the same flow through. A laboratory model is made to carry out feasibility test, which verifies that the device can realize the monitoring function of the corrosion status
of grounding lead down without excavation.
    Key words: ground lead-in line; anti-corrosion measure; corrosion monitoring; excavation free
 
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