地埋式变压器温升及地埋系统热传递过程  

Temperature-rise of Transformer and Heat Transfer Process for Embedding System

作　　者：胡敏[1,2] 姜益民[2] 肖登明[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]上海市电力公司,上海200122

出　　处：《高电压技术》2009年第6期1497-1501,共5页High Voltage Engineering

摘　　要：地下式和地埋式变压器长期埋放于地下,热问题十分突出,变压器温升及地坑环境温度对其安全运行起着重要作用。为此,对地坑方式直接埋入配电变压器DGSR11-H-315/10进行试验研究,采用热电偶测量温度,并建立地埋式变压器-地坑流场-土壤介质即地埋系统的热传递模型对该地埋系统的温度场分布进行数值研究。计算与试验结果的对比说明了模型的可行性,为进一步推广和发展地下式和地埋式变压器的应用奠定理论基础。Since underground and embedding transformers are set in pit for long time, heat problem is very prominent. The temperature-rise of power transformer and environmental temperature of pit play a vital role in its safe operation, so the experimental study of DGSR11-H-315/10 transformer was conducted with thermoelectric couple.Moreover, the embedding system （including embedding transformer, pit flow and soil medium） heat transfer model was established, and numerical simulation was conducted to study temperature distribution. Comparison of computed and test results indicate the feasibility of above model, which provides a theoretic basis for extending and developing the application of embedding transformer.

关 键 词：地下式/地埋式变压器 地坑 变压器温升 热传递 热电偶 有限体积法 

分 类 号：TM421[电气工程—电器]