Transformer Construction

 The single elements of a transformer consists of two coils or windings having mutual inductance and a laminated steel core.

                                                     In all type of transformers, the core is constructed of laminated steel sheets assembled to provide a continous magnetic path with a minimum air gap included. The steel used is of high silicon content, to reduce hystresis  loss and the core is laminated to reduce eddy current loss.

                                                In order to mount the coil windings, the individual laminated steel sheets are stamped or punched out from larger steel sheets and into strips formed of thin steel resembling the letters E, L, U, and I.