Electrical Engineering ⇒ Topic : Stacking
The magnetic circuits are generally laminated to reduce eddy current loss. These laminations are coated with insulating varnish. Therefore, small space is present between the successive laminations. So, the effective magnetic cross-sectional area is less than the overall area of the stack. Stacking factor is defined as the ratio of the effective area to the overall area. This factor plays vital role during calculation of flux densities in magnetic parts. This factor is usually less than 1.0.
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