HYSTERESIS LOOP

HYSTERESIS LOOP

The transfer core is made of laminated iron, which is a magnetic material. The power applied to the primary coil of an ideal transformer is fully attained on the secondary coil. However, practically no transformer is found to have 100% efficiency, that is, all the power on the primary coil should be found at secondary. This energy loss occurs in many forms. Such as the formation of Eddy current, copper losses, flux leakage and hysteresis loss etc.

If AC current is charged on the primary of the transformer, then the core made of the magnetic material of the transformer in a cycle is magnetized twice. As the direction of AC current changes, the direction of this magnetic field also changes. During this direction change, some energy is lost due to molicular friction in the core atom, this is called hysteresis loss. This can be done by choosing a suitable metal such as Mu-metal. | This metal is made of a ferromagnetic alloy consisting of 78% Nickle, 17% Iron and 5% Copper. Its permeability is very high.