What Is Laminated Core In Transformer
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.
What is laminated core in transformer. 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. Which has been specially designed to carry large input and output power transmissions since loss due to eddy currents is less. A transformer is a passive electrical device that transfers electrical energy from one electrical circuit to another or multiple circuits a varying current in any one coil of the transformer produces a varying magnetic flux in the transformer s core which induces a varying electromotive force across any other coils wound around the same core. This means that a steel laminated core can carry a magnetic flux 1500 times better than that of air.
The transformer s core is made up of iron or silicon steel or ferromagnetic materials. The core in its final assembly has the same shape as an el ei or f stamped lamination and is similar to the configuration of a double c core. Each metal strip has thickness near about the o 5mm. Laminated core is a rectangular shaped type of soft magnetic core.
The core is laminated to reduce these to a minimum as they interfere with the efficient transfer of energy from the primary coil to the secondary one. The percentage of nickel is adjusted to give a reduced energy loss when the core is magnetised by the magnetic field produced when the primary winding is energised. The iron core made by thin metal strips and lamination insulated by a coat of varnishes or papers. 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.
Which has been extensively used in power transformers distribution transformers and isolation transformers. The core of a laminated transformer consists of a stack of punched sheet alloy made of iron and nickel the laminations.