LINEAR ASYNCHRONOUS ELECTRIC DRIVE Russian patent published in 2009 - IPC H02K41/25 H02P8/42 

FIELD: electricity.

SUBSTANCE: invention refers to electric engineering and allows implementing stepped movement of electrically conducting anchor of linear asynchronous electric drive and is intended for discrete electric drives. Linear asynchronous electric drive contains inductor with winding consisting of individual coils located on its teeth and electrically conducting anchor. On inductor teeth there located are two screening turns the outputs of which are connected to reed relays the coils of which are connected to switching device providing the possibility of simultaneous closing of at least four screening turns located on four adjacent teeth of inductor and comprising the initial row; at that, turns of the first two teeth are closed, which screen right-handed parts in direction from left to right, and turns of the next two teeth are closed, which screen their left-handed parts. For the beginning of step of electrically conducting anchor the switching device opens the turn screening left-handed part of the last tooth, and for completing the step it opens the turn screening right-handed part of the first tooth, closes the turns screening right-handed parts of the second and third teeth. Besides there closed is the turn screening left-handed part of tooth next to the last tooth of initial row.

EFFECT: simplifying the design and providing operating possibility from monophase network.

6 dwg