EN变电站端子箱除湿技术研究及应用
Research and Application of Dehumidification Technology in Substation Terminal Boxes
- 电力大数据 2025年第12期
- 作者机构：
1. 贵州电网有限责任公司电力科学研究院
2. 贵州大学电气工程学院
- 作者简介：
- 基金信息：贵州电网有限责任公司科技项目变电站端子箱除湿技术研究(066600KK52220024)
DOI：
中图分类号：-
纸质出版：2025
- 稿件说明：
移动端阅览
陈敦辉, 罗喆文. 变电站端子箱除湿技术研究及应用[J]. 电力大数据, 2025,(12).
陈敦辉, 罗喆文. Research and Application of Dehumidification Technology in Substation Terminal Boxes[J]. 2025, (12).
摘要
面向贵州电网户外端子箱凝露风险开展现状调查、机理分析、方案设计、仿真验证与现场试点。调查表明受潮普遍存在
落地安装更受电缆沟潮气影响
封堵老化与手段单一常致效果不稳。基于热湿传输机理
提出源头防潮、通风有序、场景化除湿与稳定控制的组合路线:电缆孔用高分子封堵
升高座二十至四十厘米；加热型实施底进顶出与多点小功率；冷凝型强调全封闭并配引流伴热；控制以持续投运并设温度上限退出。三座变电站试点显示
五百千伏碧江变端子箱内空气绝对含湿量均值十五点七三克每立方米
较箱外下降约百分之十
较电缆沟下降约百分之二十五
箱内温度始终高于露点
未见凝露；二百二十千伏川硐与滑石亦明显改善。研究形成可复制参数与运维要点
支撑端子箱除湿改造推广。
Abstract
A comprehensive investigation
mechanism analysis
solution design
simulation verification
and field pilot were conducted on the condensation risk of outdoor terminal boxes in Guizhou Power Grid. The survey revealed widespread moisture ingress
with floor-mounted installations being more susceptible to cable trench humidity. Inadequate sealing due to aging and monotonous measures often led to unstable effects. Based on the heat and moisture transfer mechanism
a combined approach of source moisture prevention
orderly ventilation
scenario-specific dehumidification
and stable control was proposed: high-molecular sealing for cable holes
raising the base twenty to forty centimeters; implementing bottom-in and top-out heating with low-power multi-point heating; emphasizing full enclosure with drainage and heat tracing for condensation-type systems; and maintaining continuous operation with a temperature upper limit for control. Three substations were piloted
showing that the average absolute humidity inside the terminal boxes of the 500 kV Bijiang Substation was 15.73 g/m3
decreasing by approximately 10% compared to the exterior and about 25% compared to the cable trench. The internal temperature remained consistently above the dew point without condensation observed. Significant improvements were also noted in the 220 kV Chundong and Huashi substations. The study produced replicable parameters and operational key points
supporting the promotion of terminal box dehumidification retrofits.
关键词
Keywords
references
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姜毅,周成华,郭俊峰,等.智能端子箱防凝露控制器的研制与试验研究[J].高压电器,2010,46(08):59-62.
Shu S, Zhan Z, Xu J, et al. Three-dimensional numerical simulation and experiment of moisture condensation mechanism inside high voltage switchgear[J]. International Journal of Electrical Power Energy Systems, 2023, 151: 109129.
杨智伟.端子箱凝露的危害和防治[J].云南电力技术,2008,(02):45.
周强强,李津.变电站智能端子箱防凝露控制系统的研究与应用[J].广东电力,2013,26(08):73-77.
谢福强.清溪变电站户外端子箱防潮维护[J].农村电气化,2014,(09):19-20.
王伟,曾国伟,林孝斌,等.变电站端子箱防潮防凝露策略研究[J].科技与创新,2016,(24):118.
郑星星,李金安,宋述波,等.换流站户外端子箱防潮措施改进及应用[J].电工技术,2018,(15):125-128+131.
Yan Y ,Xing F ,Gao H , et al.Enhancing Dehumidification in the Cable Room of a Ring Main Unit through CFD-EMAG Coupling Simulation and Experimental Verification[J].Applied Sciences,2024,14(4)
邓琴,王川.新型户外端子箱内部除湿系统[J].自动化应用,2010,(12):40-41+43.期刊
Kapi? A, Tsirou A, Verdini P G, et al. Uncertainty analysis of polymer-based capacitive relative humidity sensor at negative temperatures and low humidity levels[J]. Measurement, 2023.
梁永超. 变电站户外端子箱除湿防潮措施的改进研究[J]. 电工技术: 下半月, 2016 (12): 00118-00119.
Xuejing Z ,Fangshu H ,Yaran W , et al.Optimization on airflow distribution for anti-condensation of high-voltage switchgear using CFD method[J].Case Studies in Thermal Engineering,2021,28
张瑞达,张强,张永恒.变电站端子箱防潮防凝露策略及集中控制技术研究[J].中国设备工程,2023,(S2):315-318.
郑星星,李金安,宋述波,等.换流站户外端子箱防潮措施改进及应用[J].电工技术,2018,(15):125-128+131.
Jinlei H, Yangyang L, Junju L, et al. Analysis of Condensation Problem in High Voltage Switchgear and Design of Anti-condensation System[C]//Journal of Physics: Conference Series. IOP Publishing, 2021, 1754(1): 012032.
张晓东.变电站机构箱端子箱防潮防凝露改进措施探讨[J].延安职业技术学院学报,2014,28(05):155-156.
谢松瑜.变电站户外端子箱加热除湿防潮方法[J].电世界,2003,44(09):38.
Jia Z, Tian Y, Liu Z, et al. Condition assessment of the cable trench based on an intelligent inspection robot[J]. Frontiers in Energy Research, 2022, 10: 860461.
房何,杨强,管玉峰,等.田湾核电站基于边缘计算与大数据的设备状态监测与智能诊断平台的应用[J].电力大数据,2022,25(09):61-67.
陈泓霖,吴昊宁,李督,等.基于模糊控制的高压开关柜散热与防凝露控制系统设计[J].电工电气,2022,(05):49-52+68.
Shu S, Zhan Z, Xu J, et al. Three-dimensional numerical simulation and experiment of moisture condensation mechanism inside high voltage switchgear[J]. International Journal of Electrical Power Energy Systems, 2023, 151: 109129.
李传江. 高压开关柜新型防凝露系统的研究与应用[J]. 华电技术, 2016, 38(8): 16-18.
Wang P, Chen X, Li J, et al. Prediction of critical condensation temperature for high voltage switchgear based on TimeGAN-augmented data[C]//Ninth International Conference on Energy System, Electricity, and Power (ESEP 2024). SPIE, 2025, 13632: 776-785.
王流火,孙帅,王增彬,等.变电站设备箱体温、湿度场及凝露的数值模拟[J].高压电器,2020,56(01):24-29.
王晓辉,赵雨,柏小辉,等.变电站开关柜“在线监测+带电检测”双模式研究与应用[J].农村电气化,2024,(06):21-24.
仲文锦.凝露造成高低压开关柜的故障分析[J].装备制造技术,2017,(01):186-187+194.
刘若溪,白宝军,郭沁,等.开关柜凝露现象机理分析研究[J].高压电器,2018,54(10):80-84.
左涛,张新太.智能变电站高性能纤维预制舱防凝露设计[J].宁夏电力,2022,(02):24-30.
叶瑞, 张豪俊, 张冰冰, 等. 户外型智能控制柜凝露预防[J]. 电气技术, 2016, 17(8): 110-113.陈敦辉(1988),男,硕士,电气工程师,主要从事输变电装备新技术研究与应用相关工作.
王岭积.配电柜防凝露技术及应用[J].工程技术研究,2022,7(03):70-72.
姜毅,周成华,郭俊峰,等.智能端子箱防凝露控制器的研制与试验研究[J].高压电器,2010,46(08):59-62.
Shu S, Zhan Z, Xu J, et al. Three-dimensional numerical simulation and experiment of moisture condensation mechanism inside high voltage switchgear[J]. International Journal of Electrical Power Energy Systems, 2023, 151: 109129.
杨智伟.端子箱凝露的危害和防治[J].云南电力技术,2008,(02):45.
周强强,李津.变电站智能端子箱防凝露控制系统的研究与应用[J].广东电力,2013,26(08):73-77.
谢福强.清溪变电站户外端子箱防潮维护[J].农村电气化,2014,(09):19-20.
王伟,曾国伟,林孝斌,等.变电站端子箱防潮防凝露策略研究[J].科技与创新,2016,(24):118.
郑星星,李金安,宋述波,等.换流站户外端子箱防潮措施改进及应用[J].电工技术,2018,(15):125-128+131.
Yan Y ,Xing F ,Gao H , et al.Enhancing Dehumidification in the Cable Room of a Ring Main Unit through CFD-EMAG Coupling Simulation and Experimental Verification[J].Applied Sciences,2024,14(4)
邓琴,王川.新型户外端子箱内部除湿系统[J].自动化应用,2010,(12):40-41+43.期刊
Kapi? A, Tsirou A, Verdini P G, et al. Uncertainty analysis of polymer-based capacitive relative humidity sensor at negative temperatures and low humidity levels[J]. Measurement, 2023.
梁永超. 变电站户外端子箱除湿防潮措施的改进研究[J]. 电工技术: 下半月, 2016 (12): 00118-00119.
Xuejing Z ,Fangshu H ,Yaran W , et al.Optimization on airflow distribution for anti-condensation of high-voltage switchgear using CFD method[J].Case Studies in Thermal Engineering,2021,28
张瑞达,张强,张永恒.变电站端子箱防潮防凝露策略及集中控制技术研究[J].中国设备工程,2023,(S2):315-318.
郑星星,李金安,宋述波,等.换流站户外端子箱防潮措施改进及应用[J].电工技术,2018,(15):125-128+131.
Jinlei H, Yangyang L, Junju L, et al. Analysis of Condensation Problem in High Voltage Switchgear and Design of Anti-condensation System[C]//Journal of Physics: Conference Series. IOP Publishing, 2021, 1754(1): 012032.
张晓东.变电站机构箱端子箱防潮防凝露改进措施探讨[J].延安职业技术学院学报,2014,28(05):155-156.
谢松瑜.变电站户外端子箱加热除湿防潮方法[J].电世界,2003,44(09):38.
Jia Z, Tian Y, Liu Z, et al. Condition assessment of the cable trench based on an intelligent inspection robot[J]. Frontiers in Energy Research, 2022, 10: 860461.
房何,杨强,管玉峰,等.田湾核电站基于边缘计算与大数据的设备状态监测与智能诊断平台的应用[J].电力大数据,2022,25(09):61-67.
陈泓霖,吴昊宁,李督,等.基于模糊控制的高压开关柜散热与防凝露控制系统设计[J].电工电气,2022,(05):49-52+68.
Shu S, Zhan Z, Xu J, et al. Three-dimensional numerical simulation and experiment of moisture condensation mechanism inside high voltage switchgear[J]. International Journal of Electrical Power Energy Systems, 2023, 151: 109129.
李传江. 高压开关柜新型防凝露系统的研究与应用[J]. 华电技术, 2016, 38(8): 16-18.
Wang P, Chen X, Li J, et al. Prediction of critical condensation temperature for high voltage switchgear based on TimeGAN-augmented data[C]//Ninth International Conference on Energy System, Electricity, and Power (ESEP 2024). SPIE, 2025, 13632: 776-785.
王流火,孙帅,王增彬,等.变电站设备箱体温、湿度场及凝露的数值模拟[J].高压电器,2020,56(01):24-29.
王晓辉,赵雨,柏小辉,等.变电站开关柜“在线监测+带电检测”双模式研究与应用[J].农村电气化,2024,(06):21-24.
仲文锦.凝露造成高低压开关柜的故障分析[J].装备制造技术,2017,(01):186-187+194.
刘若溪,白宝军,郭沁,等.开关柜凝露现象机理分析研究[J].高压电器,2018,54(10):80-84.
左涛,张新太.智能变电站高性能纤维预制舱防凝露设计[J].宁夏电力,2022,(02):24-30.
叶瑞, 张豪俊, 张冰冰, 等. 户外型智能控制柜凝露预防[J]. 电气技术, 2016, 17(8): 110-113.陈敦辉(1988),男,硕士,电气工程师,主要从事输变电装备新技术研究与应用相关工作.
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