Electrical Engineering ⇒ Topic : Magnetic Calculations From B-H Curves
Magnetic Calculations From B-H Curves
The solution of magnetic circuits can be easily obtained by the use of B-H curves. The procedure is as under
(I) Corresponding to the flux density B in the material, find the magnetising force H from the B-H curve of the material.
(ii) Compute the magnetic length l.
(Ill) m.m.f. required = H x l.
The reader may note that the use of B-H curves for magnetic calculations saves a lot of time. Fig. (a) shows the B-H curves for sheet steel, cast steel and cast iron
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