The purpose of providing an iron core in a transformer is to.
Iron core of power transformer is laminated to reduce.
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.
Question is a transformer core is laminated to options are a reduce hysteresis loss b reduce eddy current losses c reduce copper losses d reduce all above losses e leave your comments or download question paper.
Ie the core is made up of thin sheets of steel each lamination being insulated from others.
In all types of transformer construction the central iron core is constructed from of a highly permeable material made from thin silicon steel laminations.
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.
Thin laminated iron core is stacked up to form the complete core.
A transformer core is laminated to a reduce hysteresis loss b reduce eddy current losses c reduce copper losses d reduce all above losses.
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.
In other words low reluctance should be retained.
Provide support to windings.
Power factors of both the transformers will be same.
The core of a laminated transformer consists of a stack of punched sheet alloy made of iron and nickel the laminations.
But a solid iron core has some own disadvantage due to to some losses.
The iron core would provide the magnetic lines with a place.
The iron core transformer has higher permeability thus it is applied in transformer in place of air core in modern transformer.
In devices like transformers the core is made up of laminations of iron.
In order to reduce the eddy current loss the resistance of the core should be increased.
Thus to reduce the losses solid core is not used in transformer.