ROTATING ELECTRICAL MACHINE Russian patent published in 2015 - IPC H02K3/51 

FIELD: electricity.

SUBSTANCE: invention is related to a rotating electrical machine, in particular, to hydrogenerator. Hydrogenerator comprises rotor, which contains a multilayer rotor unit that passes in direction of the electric machine axis and has rotor winding that forms front winding at each butt ends of the multilayer rotor unit; the front winding is fixed to the front winding rim, which is placed concentrically inside the front winding and coupled to the rotor unit in axial direction in order to compensate centrifugal force by means of bolts (18) passing radially through the front winding and by mounting fixture (17,18) intended for reliable compensation of axial expansion in the front winding. The bolts (18) are fixed to the rim of the front winding by means of element (17) with T-shaped cross-section, which passes in axial direction and may be moved axially in axial T-shaped grove matching it and made in the front winding rim; there is an auxiliary attachment fitting (22, 23) to transfer axial expansion of the front winding (15) to element (17) T-shaped cross-section.

EFFECT: improved reliability.

8 cl, 2 dwg