Cut Lamination

The use of silicon steel as the iron core of the transformer is firstly due to the characteristics of silicon steel itself: it is a magnetic material with strong magnetic permeability. Therefore, in the current coil, it can generate a larger magnetic induction intensity, which can make the size of the transformer smaller. The hysteresis loss of the transformer core is small, which can greatly reduce the degree of heat generation. In fact, the power loss of the transformer is not only reflected in the resistance of the coil, but also in the iron core. We usually refer to the power loss in the iron core as “iron loss”. Iron loss is caused by two reasons, one is “hysteresis loss” and the other is “eddy current loss”. Hysteresis loss refers to the loss caused by the existence of hysteresis during the magnetization process of iron. The loss is proportional to the area enclosed by the hysteresis loop of the material. Since the hysteresis loop of silicon steel is narrow, the hysteresis loss of the iron core used as a transformer is small, which can greatly reduce the degree of heat generation.