Why Are Iron Cores In Transformers Laminated

Why iron core is thin laminated in transformer.

Why are iron cores in transformers laminated.

However when a magnetic flux flows in a transformers steel core two types of losses occur in the. The purpose of providing an iron core in a transformer is to. Answered by abhijeet mishra 1st aug 2018 06 37. A transformer core is laminated to a reduce hysteresis loss b reduce eddy current losses c reduce copper losses d reduce all above losses.

This means that a steel laminated core can carry a magnetic flux 1500 times better than that of air. Provide support to windings. Eddy current is induced in core and circulates normal to the width of the core causing heat. Transformers are basically two coils of wire wrapped around a core of iron.

Laminated means made up of insulated layers of iron glued together rather than being in a single solid lump. The iron core transformer has higher permeability thus it is applied in transformer in place of air core in modern transformer. Decrease the reluctance of the magnetic path. A magnetic core is a piece of magnetic material with a high magnetic permeability used to confine and guide magnetic fields in electrical electromechanical and magnetic devices such as electromagnets transformers electric motors generators inductors magnetic recording heads and magnetic assemblies it is made of ferromagnetic metal such as iron or ferrimagnetic compounds such as ferrites.

To control it s weight regulate the energy loss due to eddy currents increase the formation secondary voltage. Transmission of power and house wiring. The eddy currents cause energy to be lost from the transformer as they heat up the core meaning that electrical energy is being wasted as unwanted heat energy. Most transformer cores are constructed from low carbon steels which can have permeabilities in the order of 1500 compared with just 1 0 for air.

Electrical steel also called lamination steel is specialty steel tailored to produce certain magnetic properties such as a small hysteresis area small energy dissipation per cycle or low core loss and high permeability. But a solid iron core has some own disadvantage due to to some losses.