| 摘要 |
A large, e.g. oil-cooled, power transformer is assembled from at least two separately transportable units each comprising a magnetic circuit and associated transformer coils enclosed within a sealed tank. Parts of the magnetic circuit of each unit protrude from the associated tank via respective seals so that the protruding magnetic circuit parts of the two units can be releasably coupled together to provide a magnetic coupling between the two units. The invention has particular application to transformers which, due to their size and weight, would be impracticable to transport fully assembled. The self-contained transformer units of the invention can each be made of a conveniently transportable size for assembly at a user site into a larger multi-unit transformer while obviating the need to expose the working components of the transformer to the deleterious effects of draining and refilling the tanks with cooling oil as in existing systems. <IMAGE> |
