An algorithm for the filling factor calculation of electrical machines standard slots

Before going into detailed design of an electrical machine some assumptions or estimations are often sufficient. One aspect is the winding layout and the copper filling factor. For a rapid approach this article presents an algorithm for the filling factor calculation for random wound windings. Based on the geometry of the slot the maximum number of wires per slot is calculated for different magnet wires. As a result the combinations of slot filling factor, copper filling factor and number of parallel leads can be evaluated. The goal of this algorithm is to replace time-consuming drawings by hand.