What are the materials used to make transformer core?

The iron core of the transformer is generally made of silicon steel sheets. Silicon steel is a kind of steel containing silicon (also called silicon). The reason why silicon steel is used as the iron core of the transformer is that silicon steel itself is a magnetic material with strong magnetic conductivity. It can generate a large magnetic induction intensity in the energized coil.

Therefore, the size of the transformer can be reduced. The power loss of the transformer under AC state is not only in the resistance of the coil, but also in the iron core under the magnetization of the alternating current. The power loss in the iron core is usually called "iron loss". The iron loss is caused by two reasons: "hysteresis loss" and "eddy current loss".

There are many materials for making iron cores, and the common ones are silicon steel sheets, ferrites, etc.

The iron core of the transformer is made according to the principle of electromagnetic induction. It mainly plays a magnetic role. Only after magnetic conduction can magnetoelectric conversion be carried out. The main function of the transformer core is to play the role of magnetic conduction and skeleton. In the transformer, as a magnetic conduction component, it is in a constantly changing electromagnetic field, and the magnetization intensity and magnetic induction intensity of the iron core are also constantly changing. Almost all transformer cores require high magnetic permeability. The common iron core is in the shape of a "sun", with the primary and secondary coils wound on the horizontal line in the middle.