What is Magnetic Saturation?
Definition of Magnetic Saturation Magnetic Saturation of Iron Now if we try to work with flux density above this limit, the iron exhibits higher reluctance compared to that at low flux density. As a result the said iron or steel does not behave like good conductor of magnetic flux. At that situation much more mmf is required to drive the flux through the same iron core. More mmf means more ampere turn in the case of electromagnetic, hence this situation should avoid. Relation between Reluctance and Flux Density In the above figure it is seen that, when flux density is within limit, the reluctance of the magnetic path is quite low but when it crosses certain value such as 2 Tesla as shown here, the reluctance of the same magnetic path is sharply increased. To avoid the undesirable effect of the magnetic saturation , the size of the iron core suitably chose for a particular engineering application. Generally volume of the iron or steel core of magnetic path in a machi...