Why transformer core is modelled as resistance even though it is frequency dependent.With increasing frequency current rises. Doesn't it seem capacitive reactance behaviour? Which decrease with increasing omega?
Thanks for your reply. Do you have idea how transformer is modelled for simulation for harmonic studies? What i found is, series leakage inductance and copper losses are mainly frequency dependent. SO to model it, one can get these parameters from manufacturer. It should be in tabulated form as...
For my research project, modelling is needed for dyn5 630 kVA transformer and 20 kV cable NA2XS(F)2Y to do harmonic analysis. For that i need leakage reactance, and resistance of copper losses for transformer. And following parameters for 20 kV cable are also needed.
Positive, negative and zero...
