Progress in Signals and Telecommunication Engineering Blagoja Arapinoski, Mirka Popnikolova Radevska, Milan Cundev, Vesna Ceselkoska 12 1 2023 In 3D domains, the three phase poles synchronous motors are studied. We have outlined the methods we have used for the numerical determinations and the complex non-linear part of the electromagnetic fields. We have applied the Finite Element Method for modelling the motor with non-linear and iterative calculation. We performed the finite elements automatic generation for which the package is used. We further developed the electromagnetic field in 3D motor domains which lead to the loading and excitation of motor windings. We determined the air gap flux and flux density distribution.