Study on the Influence of Temperature and Humidity on the Condensation of Outdoor Equipment

GUO Qin; ZHANG Weiqi; GUO Yu; WANG Sike; LIU Yunpeng

doi:10.13296/j.1001-1609.hva.2018.08.010

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Study on the Influence of Temperature and Humidity on the Condensation of Outdoor Equipment

更新时间：2025-04-26

- Study on the Influence of Temperature and Humidity on the Condensation of Outdoor Equipment
- High VoltageApparatus Vol. 54, Issue 8, Pages: 60-64(2018)
- 作者机构：
  
  1. 河北省输变电设备安全防御重点实验室
  2. 国网武汉供电公司
  3. 国网河北省电力公司检修分公司
  4. 国网湖北省电力公司电力科学研究院
  5. 国网湖北省电力公司计量中心
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.08.010
  CLC： TM591
- Published：2018
- 稿件说明：
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[1]郭沁,张炜琦,郭雨,汪司珂,刘云鹏.温湿度对户外设备凝露现象的影响研究[J].高压电器,2018,54(08):60-64.

GUO Qin, ZHANG Weiqi, GUO Yu, et al. Study on the Influence of Temperature and Humidity on the Condensation of Outdoor Equipment[J]. High voltageapparatus, 2018, 54(8): 60-64.
[1]郭沁,张炜琦,郭雨,汪司珂,刘云鹏.温湿度对户外设备凝露现象的影响研究[J].高压电器,2018,54(08):60-64. DOI： 10.13296/j.1001-1609.hva.2018.08.010.

GUO Qin, ZHANG Weiqi, GUO Yu, et al. Study on the Influence of Temperature and Humidity on the Condensation of Outdoor Equipment[J]. High voltageapparatus, 2018, 54(8): 60-64. DOI： 10.13296/j.1001-1609.hva.2018.08.010.

摘要

户外设备长期工作在高温高湿、低温高湿等情况下

极易形成凝露

危害电路设备的正常运行。针对上述现象

文中在人工环境气候室内搭建了真型开关柜凝露试验系统

记录了不同温差及相对湿度条件下凝露形成时间

并测量了未形成凝露时的柜体内壁温度。结果表明:凝露形成时间是由温差和相对湿度共同影响的

当相对湿度不变时

温差越大

凝露形成时间越短;而当温差不变时

相对湿度越高

凝露形成时间也越短;并且

形成凝露的露点温度始终高于物体表面温度。最后

提出可通过减小温差、降低相对湿度及将设备温度控制在露点温度以上的方法防止凝露现象

为实际工程防凝露提供参考。

Abstract

Owing to long-term work in high temperature and high humidity or low temperature and high humidity

outdoor equipment can easily format condensation

which harms the normal operation of the circuit devices. In view of the above phenomena

a true switch cabinet condensation test system is set up in the artificial climate chamber

the condensation formation time under different temperature difference and relative humidity is recorded

and the temperature of the inner wall of the cabinet is measured when condensation is unformed. The results show that

the condensation formation time is influenced by temperature difference and relative humidity

when the relative humidity is constant

the greater the temperature difference

the shorter the time of condensation formation;however

when the temperature difference is constant

the higher the relative humidity

the shorter the time of condensation formation;and the dew point temperature is always higher than the surface temperature of the object. Finally

the methods of reducing the temperature difference and relative humidity

and controlling the device temperature above the dew point temperature are proposed to avoid the condensation phenomenon

which can provide some references of preventing condensation for practical engineering.

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