| 摘要 |
1. A winding in a high-voltage electric machine with stationary parts, the windings being in the form of prefabricated drums (15) onto which the conductor (1) forming the winding is wound, said drums (15) being mounted in the machine on site, characterized in that the winding (13) consists of high-voltage cable (1). 2. A winding as claimed in claim 1, characterized in that the high-voltage cable (1) comprises a core (2) with a plurality of strands, an inner semi-conducting layer (3) surrounding the core (2), an insulating layer (4) surrounding the inner semi-conducting layer and an outer semi-conducting layer (5) surrounding the insulating layer. 3. A winding as claimed in claim 2, characterized in that the high-voltage cable (1) has a diameter in the range of 20-200 mm and a conducting area in the range of 80-3000 mm<2>. 4. A winding as claimed in any of claims 1-3, wherein the machine constitutes a power transformer having a core (11), said drums (14, 15) being mounted on the transformer core (11). 5. A winding as claimed in claim 4 characterized in that the high-voltage coil (13) is divided into a number of drums (15) for each phase, cable joints (16) between the drums (15) being applied during assembly on site. 6. A winding as claimed in claim 1 or 2 characterized in that tubes or ducts for cooling the windings (12, 13) are arranged in the drums (14, 15). 7. A power transformer characterized by a winding as claimed in any of claims 1-6. 8. An inductive reactor characterized by a winding as claimed in any of claims 1-6. |
