| 计算大型变压器热点温升的一种数值方法 |
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| 引用本文： | 俞昌铭,张建,王秀春,周国相.计算大型变压器热点温升的一种数值方法[J].清华大学学报(自然科学版),1986(1). |
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| 作者姓名： | 俞昌铭 张建 王秀春 周国相 |
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| 作者单位： | 清华大学工程力学系
(俞昌铭)，清华大学工程力学系
(张建)，保定变压器厂
(王秀春)，保定变压器厂(周国相) |
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| 摘 要： | 在对被广泛采用的计算现代大型变压器的温升的经验公式进行评述后，提出一种新的数值方法用来计算变压器的热点温升。文中介绍了用网络法计算油流槽道内速度分布与用有限差分法计算线饼内温度分布。用新方法计算的结果与沈阳变压器厂提供的实验结果能较好地吻合。
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| 关 键 词： | 变压器 热点 温升 温度分布 数值计算 |
A Numerical Method for Calculating Temperature Rise at the Hottest Point in Large Modern Transformers |
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| Yu Changming,Zhang Jian.A Numerical Method for Calculating Temperature Rise at the Hottest Point in Large Modern Transformers[J].Journal of Tsinghua University(Science and Technology),1986(1). |
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| Authors: | Yu Changming Zhang Jian |
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| Abstract: | This paper reviews an empirical formula of transformer winding temperature rise which have been widely used in design of large modern transformers. A new numerical method is given for calculating temperature rise at the hottest point in transformer. The velocity distribution in the oil ducts is estimated by network method and temperature distribution in the winding is estimated by the finite difference method. The numerical results obtained by the new method are in good agreement with the experimental results which are provided by Shenyany Transformer Factory. |
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| Keywords: | transformer hottest point temperature rise temperature distribution numerical calculation |
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