EFFICIENCY OF EDDY-CURRENT SHIELDING OF STRUCTURAL-STEEL SURROUNDING LARGE CURRENTS - A CIRCUIT APPROACH

被引：8
|
作者：
NAMJOSHI, KV
BIRINGER, PP
机构：
[1] Department of Electrical Engineering, University of Toronto, Toronto, Ontario
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 06期
关键词：
D O I：
10.1109/20.278857
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：
This paper deals with eddy current shielding of steel structures which surround power cables carrying large currents. An important criterion for the effectiveness of the shield is the ratio of the power loss with the shield and the power loss without the shield. A method is suggested for the estimation of the effectiveness of the shield provided the power loss without is developed between the effectiveness of the shield and the losses in the shield and in the steel structure. Short circuited copper rings closely wound around the structure are considered as an eddy current shield. A transformer circuit model is used. The method is demonstrated for a circular geometry.
引用
收藏
页码：5417 / 5419
页数：3
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