About joint work of synchronous machines
Three-phase synchronous generators of power plants usually work together. The theory of joint operation of synchronous machines has been developed for a long time and is a classic one. However, the presentation of this theory in the literature is accompanied by numerous contradictions, inaccuracies and even errors. This is mainly due to the arbitrary, unjustified choice of positive directions of electrical quantities on electrical circuits, with an incorrect interpretation of the Kirghoff laws, counter and consonant switching of synchronous generators. The article shows that the parallel connection of two synchronous generators is their counter (not consonant and not antiphase) inclusion, since the phase windings of the generators are connected to each other by the same conclusions. The voltage between these terminals is common to both generators. A separate generator, included in the network, becomes part of it, and from its own it has only EMF and mechanical moment on the shaft.