【摘要】 为减少大型电力变压器铁磁结构件中产生的杂散损耗,避免由于产生局部过热点使相关的绝缘部件受到损害进而危及整个变压器的正常运行,采用了Ar-V-Ar方法对两组已经建立的面向工程的国际TEAM Problem 21的屏蔽基准模型的电磁场和杂散损耗进行了准确定量分析和实验研究,得到了新的具有工程意义的结果和结论。计算和实验结果得到了满意的吻合,验证了电磁分析方法的有效性。更多还原

【Abstract】 In order to reduce the stray-field loss of the ferromagnetic configuration in large power transformers and avoid local overheating,which damages some insulation-components,probably interrugts the normal operation of the whole device,Ar-V-Ar method is used to investigate two sets of engineering-oriented shielding model,which belang to TEAM(testing electromagnetic analysis methods) Problem 21 family.The electromagnetic field and the stray loss of there shielding models are analyzed in detail,and some related experiments are carried out.The calculated and measured results are in good agreement,which proves the practicality and effectiveness of the electromagnetic analysis methods.更多还原