FIELD: electric drives for presses, textile and paper industry, tape drives for computer engineering. SUBSTANCE: device has two induction electric motors, which are joined through ribbon, and commutator with control unit. Stator windings of electric motors are connected in series in pairs in star connection with different order of phase alternation. Commutator is connected to terminals between stator windings. In addition power of second electric motor is greater than power of first one. EFFECT: increased range of ribbon speed control. 2 cl, 2 dwg
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