What is hysteresis and hysteresis loss?

The energy lost as heat, which is known as the hysteresis loss, in reversing the magnetization of the material is proportional to the area of the hysteresis loop. Therefore, cores of transformers are made of materials with narrow hysteresis loops so that little energy will be wasted in the form of heat. read more

Hysteresis loss is a type of core loss which occurs in the core of machine. This is due to non-linear relationship between magnetic field intensity and magnetic flux density. When we pass magnetic field through magnetic material then domains orient according to the direction of field. read more

Hysteresis Loss Definition: The work was done by the magnetising force against the internal friction of the molecules of the magnet, produces heat. This energy which is wasted in the form of heat due to hysteresis is called Hysteresis Loss. read more

The energy loss associated with hysteresis is proportional to the area of the hysteresis loop. The area of a hysteresis loop varies with the type of material. For hard materials the hysteresis loop area is large and thus the hysteresis loss also more. Hysteresis loop for hard material has a high remanence (0-c) and a large coercivity (0-d). read more