中文摘要：

介绍了钢轨中产生地磁感应电流GIC的机理,分析了GIC侵害高铁扼流变压器的路径,以BE2-600/25型扼流变压器为例,利用Maxwell软件搭建了扼流变压器模型,给出该型扼流变压器在遭受地磁感应电流时的电磁特性仿真结果。

英文摘要：

The paper introduces the generation mechanism of geomagnetic induced current （GIC）, analyzes the routes from which GIC invade into the choke transformers of high speed railways, with model of BE2-600/25 choke transformer as an example, by application of Maxwell software, a choke transformer model is established, and simulation results of electromagnetic characteristics are obtained for the choke transformer when it is being invaded by the GIC.