Use as a base of non-linear system of equations for magnetically linked meshes used in practice for defining the duty of asynchronous machines lets you calculate and asynchronous operating of synchronous machines (salient pole and non salient pole types). The first provides a set of linear transformations of MMF and flux in the complex plane; they are presented as sets of symbolic method. A method for determining the currents in the elements of damper windings for varying constructions of large synchronous machines is developed. Practical examples are given.