干式变压器平均温升计算方法研究  

Research on the Method of Calculating Average Temperature Rising in Dry-type Power Transformer

作　　者：张强[1] 

机构地区：[1]江苏科技大学能源与动力工程学院,江苏镇江212003

出　　处：《电力科学与工程》2011年第10期42-44,共3页Electric Power Science and Engineering

摘　　要：通过有限元法对典型结构干式变压器内部温度场的计算,确定了干式变压器平均温升换热系数准则方程式,提出了一种计算线圈平均温升的方法,利用该方法将绕组平均温升的计算结果与试验值进行了比较,精度有了很大提高,为干式变压器平均温升的计算提供了新的途径。By solving the temperature distribution in dry-type power transformers with finite element method,the form of characteristic number equation for the heat-transfer coefficient is established.A method to calculate the average temperature rising is proposed.The comparison between the calculated results and measured results shows the agreement.The study provides a feasible way to determine the average temperature rising in dry-type power transformer.

关 键 词：干式变压器 平均温升 相似理论 有限元 

分 类 号：TM112[电气工程—电工理论与新技术]