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电力变压器三维漏磁场及铁芯拉板涡流损耗的计算
引用本文:李琳,崔翔,张元禄,程志光.电力变压器三维漏磁场及铁芯拉板涡流损耗的计算[J].中国电机工程学报,1999,19(6):33-36,51.
作者姓名:李琳  崔翔  张元禄  程志光
作者单位:1. 华北电力大学电力系,071003,河北保定
2. A保定天威集团,071051,河北保定
摘    要:应用双标量磁位的表面阻抗法计算了一台电力变压器的三维漏磁场,将计算的漏磁通密度和铁芯拉板的最高温升与测量值进行了比较,结果能满足工程设计要求。分析了铁芯拉板的宽度、开槽数及变压器负载电流对拉板涡流损耗的最高温升高的影响。

关 键 词:电力变压器  三维漏磁场  铁芯拉板  涡流损耗  计算

CALCULATION OF THE 3D NONLINEAR MAGNETIC FIELD AND EDDY CURRENT LOSS OF THE PLATE IN TRANSFORMER
Li Lin,Cui Xiang,Zhang Yuanlu,Cheng Zhiguang.CALCULATION OF THE 3D NONLINEAR MAGNETIC FIELD AND EDDY CURRENT LOSS OF THE PLATE IN TRANSFORMER[J].Proceedings of the CSEE,1999,19(6):33-36,51.
Authors:Li Lin  Cui Xiang  Zhang Yuanlu  Cheng Zhiguang
Abstract:The 3D leakage magnetic field in a transformer is calculated by using the surface impedance method based on two scalar magnetic potentials.The leakage magnetic flux density and the highest temperature rise calculated of the tie plate are compared with the measured values,and the results are satisfied for engineering design.The influences are analyzed of the width and the slot number of the tie plate and the transformer load curent to the eddg current losses and the highest temperature rise.
Keywords:nonlinear  magnetic fields  eddy currentfield  iron  losse  transfomer
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