干式变压器绕组温度场的数值计算与分析

Numerical Calculation and Analysis of Temperature Field of Winding in Dry-type Power Transformer

根据传热学的基本原理建立了干式变压器绕组温度场的数学模型,采用有限单元方法求解了变压器绕组的温度场,获得了详尽的温度场分布情况,计算结果与试验结果基本一致,为研究该类变压器的温度特性提供了方便。

A mathematical model is presented based on the fundamental theory of heat transfer to calculate the temperature distribution in the dry-type power transformer. By means of FEM, the detailed temperature distribution in one phase of the transformer is given. The results from calculation are coincidence with that from the test. The study provides a feasible way to investigate the temperature characteristics of the dry-type transformer.