Load Losses in Salient Pole Synchronous Machines

The short circuit test of a salient pole synchronous machine in which rated armature current is being circulated is conventionally used for determining the load loss. In certain cases, it is necessary also to know the load losses when the machine is operated at rated conditions of voltage, current, and power factor. Methods for predetermining the short circuit losses are given in detail in this paper, and the results of calculations are presented. Methods of predetermining the losses under rated conditions are given briefly.