How to build a model of current transformer for metering?

I want to build a model of current transformer used for metering high current in power transmission system, especially the iron core part.

Is there any similar model already which I can improve and optimize?

Thanks a lot!

Answer 1

[A Jenkins]

SimPowerSystems:

http://www.mathworks.com/help/physmod/powersys/ref/saturabletransformer.html

Or something like this from the File Exchange:

http://www.mathworks.com/matlabcentral/fileexchange/9941-dynamic-simulations-of-electric-machinery-using-matlabsimulink