Coupling unit of two multilayer cables of high-voltage generator stator winding

PCT No. PCT/SU80/00204 Sec. 371 Date Aug. 10, 1982 Sec. 102(e) Date Aug. 10, 1982 PCT Filed Dec. 18, 1980 PCT Pub. No. WO82/02123 PCT Pub. Date Jun. 24, 1982.A coupling unit for two multilayer cables of a stator winding of a high-voltage generator, located in the end-face portion thereof, comprises terminations (1) of interconnected multilayer cables, wherein conducting layers (2,10) and conducting layer tubes (6,8) are concentrically arranged and separated from one another by insulating layers (7, 9, 14, 15), jumpers (18, 20, 22, 24) electrically coupling said conducting layers (2, 10) and conducting layer tubes (6, 8). A portion of each insulating layer (7, 9, 14, 15), facing the jumpers (18, 20, 22, 24) has a shape of an end insulation frustum (16). Each jumper (18, 20, 22, 24) is a totality of components made as a portion of a hollow cylinder limited by two planes. Each jumper (18, 20, 22, 24) carries an insulating bushing (12, 21, 23, 25). Thin-walled insulation cylinders (27, 28) are secured in each end insulation frustums (26) and in frustums (26) of the insulation bushings (19, 21, 23, 25). The surfaces of the frustum (26 ) of the insulating bushing (19, 21, 23, 25), the end insulation frustum (16), two adjacent jumpers (18, 20, 22, 24) and conducting layers (2, 10) coupled thereto and conducting layer tubes (6, 8) form an insulation chamber (30). The surface of the jumper (24), the tube (12) of the exterior conducting layer (10) connected to said jumper (24), the end insulation frustum (16), the frustum (26) of the insulating bushing (25), the thin-walled cylinders (27, 28) form an insulation cavity (31). The insulation chambers (30) communicate with one another and with the cooling ducts (5, 13) and with the insulation cavity (31).