Improved design of cover plates of power transformers for lower eddy current losses

被引：12

作者：

Kim, DH ^{[1
]}

Hahn, SY

Kim, SY

机构：

[1] Seoul Natl Univ, Dept Elect Engn, Seoul 151742, South Korea

[2] LG Elect Inc, Home Appliance Res Lab, Seoul 152020, South Korea

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期

关键词：

power transformer; local overheating; eddy current loss; indirect BIEM;

D O I：

10.1109/20.800579

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Due to the heavy current passing through the steel cover plates of power transformers, some areas are subject to serious local overheating. It affects the safety and reliability of the expensive equipment and power delivery. In this paper, the improved design of cover plates Is presented to reduce eddy current losses and to prevent those from local overheating. For the accurate calculation of eddy current losses and power loss density distribution in the cover plates, the indirect BIEM (boundary integral equation method) is applied to the 3D open boundary problem caused by the heavy current of leads in a three-phase power transformer. The numerical results by the indirect BIEM are compared with the experimental values.

引用

页码：3529 / 3531

页数：3

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