Farady transformer iron is an alloy of iron with silicon and some other minor components

Farady 50kva power transformer iron is an alloy of iron with silicon and some other minor components. It's characterized by a relatively high permeability, very high saturation flux density, relatively low hysteresis loss, and relatively high specific resistance. This latter factor, along with the practice of using the material in thin, insulated sheets, reduces the power losses produced by eddy currents.In any E-I lamination you are likely to encounter, the center leg is twice as wide as each of the other parts. This is because the entire magnetic flux has to go through the center leg, but then splits up, with one half of the flux returning through each of the side legs. If you ever come across a lamination that has all three legs of the same width, then you are looking at a lamination intended for farady three phase pad mounted transformer.