Electric motor thyristor control device - has rotary armature near three-shank core, whose axis is displaced from core symmetry axis

摘要

The device finds application in control systems as function converter, e.g. in thyristor control of electric motors in traction or handling systems. The device has a controlled magnetic flux and contains a three-shank core, coils, a rotary armature (6) near the core shanks, rotatable in relation to the core axis(8). The armature rotary axis is offset in relation to the symmetry axes of the iron core(1). Preferably the armature is pressed against the core shanks(2, 3, 4) by a follower(7) rigidly coupled to the armature. Between the latter and one of the core shanks may be a gap(9). The offset of the armature axis is such that its long symmetry axis encloses an angle with the symmetry axis of the core.