| 摘要 |
FIELD: electricity.SUBSTANCE: invention relates to electrical machines, namely to noncontact synchronous generators of inductor type operating mainly with rectifying load, used, for example, in generating units of motor-and-tractor machinery. The invention is aimed at overcoming of impossibility to use as the base the widely widespread and reliable asynchronous machines with a square-cage rotor. It is achieved by that the inductor electrical machine containing front, back covers, stator with the working winding, source of excitation, rotor with the shaft, according to the invention is equipped with a ferromagnetic ring, closing devices, magnetic circuit of sprocket type with a hole and non-magnetic insert, and the ferromagnetic ring is installed by the first side part in external, with reference to frontal parts, zone of the stator closely, from the other side of ferromagnetic ring the closing elements are installed which are connected to the sprocket teeth using the slot and clamp.EFFECT: use of the given structure allows on the basis of the initial asynchronous machine by adding of a source of excitation and details of magnetic circuit obtaining a synchronous inductor electrical machine, which has such a positive feature, that EMF is generated by the rotation speeds of the shaft from low up to rated one, while for operation in the mode of induction generator it is required to provide the rotor rotation higher than the rated speed.3 dwg |
