不同温度下变压器油中微水运动特性仿真分析  

Simulation Analysis of Moisture Movement Characteristics in Transformer Oil at Different Temperatures

作　　者：武炬臻 王贵娟 曹燕明[1] 乐波[1] 罗虎 WU Ju-zhen;WANG Gui-juan;CAO Yan-ming;YUE Bo;LUO Hu(State Grid Economic Technology Research Institute Co.,Ltd.,Beijing 102209,China;TBEA Hengyang Transformer Co.,Ltd.,Hengyang 421007,China)

机构地区：[1]国网北京经济技术研究院有限公司,北京102209 [2]特变电工衡阳变压器有限公司,湖南衡阳421007

出　　处：《变压器》2022年第1期17-21,共5页Transformer

摘　　要：本文中作者通过构建两相流计算流体力学仿真模型,研究变压器油温度变化时,绕组油道中微水的运动及分布规律,分析微水在绕组油道中的聚集现象。研究结果表明,微水可在绕组顶角和辐向油道低速区域形成聚集,聚集区域的微水含量可达到平均含量的三倍,0℃时吸附在绕组表面的微水比例最少。By constructing a two-phase flow computational fluid dynamics simulation model,the movement and distribution of moisture in the oil duct are studied atdifferent transformer oil temperatures.The accumulation of moisture in the oil duct is analyzed.The results show that moisture can form aggregation at the winding top angle and lowspeed area of radial oil duct,the moisture content in the aggregation area can reach three times of the average content.The proportion of moisture adsorbed on the winding surface is the least at 0℃.

关 键 词：变压器 微水 溶解度 

分 类 号：TM401.2[电气工程—电器]