HEAD OF ENDS OF BAR WINDING OF STATOR Russian patent published in 1994 - IPC

FIELD: electric machine engineering. SUBSTANCE: head of ends of bar winding of stator has upper 2 and lower 3 bars composed of elementary conductors 5. Conductive jumper independently connects elementary conductor 5 of upper bar 2 to elementary conductor 5 of lower bar 3 and is coated with dielectric over outer surface. All elementary conductors 5 of upper 2 and lower 3 bars are insulated from each other with the use of cellular dielectric elements 9, 10 incorporating vertical wall 19 and horizontal shoulders 20 which form cells. Each cell houses one soldered connection of jumper 16 with elementary conductor 5. EFFECT: reduced additional losses for circulation currents as elementary conductor 5 of upper bar 2 is coupled to corresponding elementary conductor 5 of lower bar 3 so that phase angles of their electromotive forces are equal. 4 dwg