Lamination Of The Transformer Core Is Made Of

By Sakshi Yadav|Updated : August 5th, 2022

The lamination of the transformer core consists of silicon steel laminations insulated from each other by insulating varnish coatings. The thickness of transformer laminates is typically around 0.25 mm to 0.5 mm. The basic function of the transformer core is to provide low resistance, high permeability magnetic circuit that allows the magnetic flux generated by the magnetomotive force of the primary winding to be efficiently coupled to the secondary winding.

Why does Transformer Need to be Laminated?

Transformer cores must be laminated to reduce eddy currents generated by induced voltages through the core, thereby reducing heat loss across the core. Therefore, by laminating the core of the transformer, the flow of eddy currents is minimized.


Lamination Of The Transformer Core Is Made Of

Transformer core laminations are made from silicon-iron alloys (iron containing about 3% silicon), more commonly referred to as “silicon steel,” “electrical steel,” “transformer steel,” or “staroy.” called by the product name. 

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