Do you have an example of a detail modeled current transformer?
In attached example (Detailed Model of a CT) a detailed model of a current transformer is presented. By using the EMT simulation saturation of the current transformer is represented in time domain. Comparison of the primary and secondary current as well as development of magnetization flux and excitation current can be seen for each phase individually. Using the result of the EMT simulation magnetization curve was created by comparing excitation current and magnetization flux.