安装环境温湿度影响下气体绝缘金属封闭开关设备水分含量研究  

Research on moisture content of gas insulated switchgear under the influence of installation environment temperature and humidity

作　　者：张少乾 卞宏志 张建勋 黄宴委[1] ZHANG Shaoqian;BIAN Hongzhi;ZHANG Jianxun;HUANG Yanwei(College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108;Construction Branch of State Grid Fujian Electric Power Co.,Ltd,Fuzhou 350013)

机构地区：[1]福州大学电气工程与自动化学院,福州350108 [2]国网福建省电力有限公司建设分公司,福州350013

出　　处：《电气技术》2022年第1期15-20,共6页Electrical Engineering

基　　金：国网福建省电力有限公司科技项目(2019H0007)。

摘　　要：针对气体绝缘金属封闭开关设备(GIS)在安装时受环境温湿度的影响,导致安装完成后气室剩余水分含量过高而需要重新安装的问题,本文提出一种考虑安装环境因素的GIS剩余水分含量计算方法。首先制定GIS安装流程,其次对气室密封后总水分量进行计算,最后按所制定的安装流程计算出平衡后SF_(6)中水分含量。仿真和试验结果表明,气室内SF_(6)中水分含量随安装环境温度及相对湿度的增加而增加,计算值随安装环境温湿度的变化趋势与试验值较吻合,且相对误差小于15%,可较好地预测安装环境温湿度影响下的GIS剩余水分含量变化,有利于工程中选择合适的安装环境。Aiming at the problem that gas insulated switchgear(GIS)is affected by environmental temperature and humidity during installation,which leads to high residual moisture content of gas chamber after installation and needs to be re-installed,a calculation method of residual moisture content of GIS gas chamber considering installation environmental factors is proposed.Firstly,the GIS installation process is formulated.Secondly,the total moisture component of the gas chamber after sealing is calculated.Finally,the moisture content of the balanced SF_(6) is calculated according to the installation process.The simulation and experimental results show that the moisture content of SF_(6) in the gas chamber increases with the increase of installation environment temperature and relative humidity.The calculated value is in good agreement with the experimental value with the increase of installation environment temperature and humidity,and the relative error is less than 15%.It can better predict the change of GIS residual moisture content under the influence of installation environment temperature and humidity,which is conducive to the selection of suitable installation environment in engineering.

关 键 词：气体绝缘金属封闭开关设备(GIS) 安装环境 温湿度 水分含量 计算模型 

分 类 号：TM595[电气工程—电器]