The silicon steel sheet in the motor and transformer does not need the insulation between the sheet and the sheet to reduce the eddy current loss
There is no insulation between silicon steel sheets. It is thin and has many layers and reduces eddy current.
D25/D35 silicon steel sheet is coated with 1U insulation after being rolled out, the gap is small after lamination, and the iron loss is reduced to the minimum in alternating magnetic field. After being made of transformer, it is soaked with insulating varnish, and the main function is moisture-proof and curing.
You see, as long as it's not a whole piece of silicon steel, it looks like layers of layers, and that's insulated, in fact, very low resistance, Ohm level.
