Mumbai university > FE > SEM 1 > Applied Physics 1

Marks: 3M

Year: May 2013

The reasons why soft magnetic materials are used in the core of transformers are as follows:-

• Transformers deal with Alternating Currents.

• Thus, the core of the transformers undergoes cyclic magnetization and demagnetization.

• As a result, Hysteresis and Eddy current losses are bound to take place.

• Soft magnetic materials have comparatively smaller area enclosed by the Hysteresis loop.

• As a result, the Hysteresis losses are low.

• Also the Eddy current loss for the soft magnetic materials is low.

• The magnetic permeability is also high.

Thus, Soft Magnetic materials are preferred as the material for the cores of the transformers.