建立了铁心模型以计算雷电冲击下变压器绕组的电感参数,利用解析法求,导铁心磁导率,绐出了育限元法计算变压器电感参数的方法。通过对变压器高压绕组电感的分析,进行了雷电冲击下全波和截波的波过程计算分析。
The core model to calculate the inductance parameters of transformer windings under lightning impulse is established. The core permeability is obtained with analysis. The finite element method to calculate transformer inductance parameters is presented. According to analysis of inductance of HV winding in the transformer, the full and chopped wave process under lightning impulse is calculated and analyzed.