DRIVE-TRANSFORMER UNIT Russian patent published in 2014 - IPC H02K17/34 H02K17/16 H02K3/12 

FIELD: electricity.

SUBSTANCE: transformer part of a unit is made with a primary winding connected to a three-phase circuit, and with a secondary z-phase bar winding, arranged in z slots of a transformer magnetic conductor closed at one side with an end ring. The drive part of the unit comprises an induction motor with a short-circuited rotor and stator with a bar winding, electrically connected with the secondary winding of the transformer, and at the other side closed with the end ring. The bars of the secondary winding of the transformer are connected with Z bars-feedthrough plates arranged in a tight partition. Each bar-feedthrough plate at the other side is electrically connected with n bars of the stator winding via intermediate electric wire arched segments adjoining the stator (where n=1, 2, … - multiple number between the bars of the stator winding and the secondary winding of the transformer).

EFFECT: expanded area of application and increased energy characteristics and reliability of a drive-transformer unit.

2 dwg