TWO-POLE THREE-PHASE ELECTRICAL MACHINE STATOR (ALTERNATIVES) Russian patent published in 2006 - IPC H02K3/12 H02K3/28 H02K1/16 

FIELD: electrical and electromechanical engineering; stators for large machines such as turboalternators.

SUBSTANCE: proposed stator has double-layer, three-level three-phase coil winding and core half of whose slots accommodate upper- and intermediate-level windings and other half of slots receive lower- and intermediate-level windings. Two-pole electrical machine stator of first design alternate has triple-level double-layer three-phase coil winding and core half of whose slots accommodate upper- and intermediate-level windings while lower- and intermediate-level windings are placed in other half of slots; stator core is built of laminated active-steel segments; depth of all core slots corresponds to total height of three levels; insulating shims are installed in bottom of slots accommodating upper- and lower-level windings and in top part of slots accommodating lower- and intermediate-level windings. Winding of second design alternate has three-level double-layer three-phase coil winding and core half of whose slots accommodate upper- and intermediate-level windings while lower- and intermediate-level windings are placed in other half of slots; stator core is made of laminated active steel segments; depth of all core slots corresponds to total height of three winding levels; auxiliary windings are placed in bottom of slots accommodating upper- and intermediate-level windings and in top part of slots accommodating low- and intermediate-level windings.

EFFECT: facilitated process of placing winding in slots of stator core manufactured from laminated segments.

4 cl, 5 dwg