【摘要】 计算了带有平衡绕组的轴向分裂变压器发生短路故障时，短路电流及并联绕组电流的分配；分析了平衡绕组结构的改进措施，并对结构改进前后各绕组受力进行了计算比较。结果表明，结构改进后，当低压绕组发生突发短路故障时，短路绕组所受到的电磁力降低了。更多还原

【Abstract】 The low voltage winding of a three phase axial split winding type transformer was damaged by a sudden short circuit fault. The current of each winding and current distribution in HVI and HVZ are calculated. TO increase the ability to withstand a sudden short~circuit trouble, the tertiary winding of the transformer is redesigned. The magnetic flux diStrbution and short-circuit force and strength of the transformer are calculated by FEM. The calculation results show that the new design of the tertiary winding reduces the shoyt-circuit force.更多还原