Why Are Iron Cores In Transformers Laminated

Decrease the reluctance of the magnetic path.

Why are iron cores in transformers laminated.

Laminated means made up of insulated layers of iron glued together rather than being in a single solid lump. Transformers are basically two coils of wire wrapped around a core of iron. A transformer core is laminated to a reduce hysteresis loss b reduce eddy current losses c reduce copper losses d reduce all above losses. To control it s weight regulate the energy loss due to eddy currents increase the formation secondary voltage.

The purpose of providing an iron core in a transformer is to. 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. The iron core transformer has higher permeability thus it is applied in transformer in place of air core in modern transformer. The iron core of a transformer is made of laminated silicon steel with special insulated coating to limit eddy current loss.

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. 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. This means that a steel laminated core can carry a magnetic flux 1500 times better than that of air. But a solid iron core has some own disadvantage due to to some losses.

The reason we laminate the iron cores in transformers is because we want to limit what are called eddy currents. The core of any transformer is laminated for the following reasons. 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. Transmission of power and house wiring.

Answered by abhijeet mishra 1st aug 2018 06 37. However when a magnetic flux flows in a transformers steel core two types of losses occur in the.