查看文章

The paper presents many methods to produce synthetic loading of rotating electric machines (induction, synchronous and DC) without load to the shaft using power converter. The required equipment is simple. Setting-up time is considerably reduced because it is not required to connect an external load to the machine’s shaft. The range of rms current control is large beginning from noload current to overload at rated speed and temperature, that the total losses in the machine can be identified by taking the average of the measured power over one cycle of synthetic loading of the machine.