大型变压器衬套及箱壁上升法兰涡流场数值分析

2008 Joint International Conference on Power System Technology and IEEE Power India Conference Pub Date : 2008-10-01 DOI:10.1109/ICPST.2008.4745377

Yan Li, S. Ho, N. Wang, R. Tang

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引用次数: 1

摘要

计算了大电流在大型电力变压器线圈和绕组引线中产生的三维开边界涡流场。分析并报道了罐壁和衬套上升法兰处的涡流损耗和局部过热问题。讨论了在线圈端部附近的磁旁通板对减少涡流损耗和钳片局部过热的有效性。

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Numerical Analysis of Eddy Current Field in the Ascending Flange for the Bushings and Tank Wall of a Large Transformer

The three-dimensional (3D) open boundary eddy current field induced by heavy current flowing in the coils and winding leads in large power transformers is calculated. The eddy current loss and local overheating problem in the tank wall and in the ascending flange of bushings are analyzed and reported in this paper. The effectiveness of a magnetic by-pass plate near the coil ends for reducing the eddy current loss and local overheating in the clamp plates is discussed.

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来源期刊

2008 Joint International Conference on Power System Technology and IEEE Power India Conference

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