Saturation in Current Transformers

The current transformers for measuring service have a core made of high permeability magnetic material. This means that they have little excitation current, small losses and low reluctance. They work under conditions of low magnetic induction (about 0.1 tesla). They enter into saturation as soon as the magnetic induction grows to (0.4 to 0.5) tesla. […]

Magnetic Field Variations

Any variation resulting from the magnetic flux must come from an electric field. The phenomenon that occurs from this effect is called electromagnetic induction, being basically a mechanism widely used in the operation of important devices, such as electric generators, electric machines of different categories and voltage transformers.                […]