Having calculated the magnetic flux through the contour II, induced electromotive force in the same contour can be calculated as well:
In case of AC furnaces, the mixing process cannot be controlled and the forces that are created by joining the eddy current magnetic fields, 50 Hz time varying magnetic field and induced electromotive forces, are not in accordance with the weight of the molten metal that has to be mixed.
As a result, the electromagnetic torque, the magnetic field density and the induced electromotive force
along the air-gap are computed.
All these measures reduce the harmonics of rotating magnetomotive forces and induced electromotive forces
. The reduction of these variable magnitudes is expressed using winding factors [k.sub.wv] = [k.sub.yv] [k.sub.pv] [k.sub.dv], here [k.sub.yv]--pitch shortening factors; [k.sub.pv]--winding distribution factors; [k.sub.dv]--slot skewness factors; v--number of harmonic number.