| 摘要 |
<p>PURPOSE:To enable reasonable arrangement of the transformer yard, and to reduce establishing space of the transformer by a method wherein the line side bushings of windings are connected to a phase non split bus-bar making the respective phases into a bundle, and moreover, a neutral point bushing is led out from the voluntary part differed from the line side bushings to be connected to a neutral point earthing device. CONSTITUTION:The neutral point bushing 9 is arranged on the short member side of a transformer tank 13 independently of secondary line side bushings 4. The cubicle 12 of the neutral point earthing device is also arranged on the short member side of the transformer tank 13 at the position came close the most to the neutral point bushing 9. Accordingly, the influence of the cubicle 12 to be applied to radiators 14 can be ignored. At the three-phase transformer thereof, because the secondary neutral point bushings are provided independently of the line side bushings and are connected to the neutral point earthing device, the transformer can be approached a power station building within the limits of cooling performance of the radiators allowed, and moreover, the cubicle can be arranged approaching the transformer as near as possible, reasonable arrangement of the transformer yard can be attained, and establishing space of the transformer can be reduced.</p> |
