【摘要】 三相立式铁心相较于三相芯式变压器具有磁路对称，空载损耗小等优点。现有立式卷铁心不包含零序通路，零序阻抗大。本文作者提出了一种改进立式铁心结构，并对该结构在原边电压不对称运行状况下进行磁路分析，最后在Comsol中进行电磁仿真，验证了该结构的可行性。更多还原

【Abstract】 Three-phase vertical iron core has the advantages of symmetrical magnetic path, small empty load loss and so on. However, the existing vertical rolling iron core does not contain zero-order magnetic path, thus zero-order impedance is large. In this paper, an improved structure of vertical core is proposed, and the magnetic path analysis is carried out under the asymmetrical operation of source voltage. The electromagnetic simulation is completed in Comsol and the results verify the feasibility of the structure.更多还原