| 摘要 |
<p>The invention relates to a three-phased electric transformer for the continuous load adjustment of voltage. According to the invention, the said transformer consists of a magnetic core (1) on which there are concentrically mounted, by means of an electro-insulating cylinder (2), a primary adjusting winding (IP) and a secondary adjusting winding (IR), both windings (IP and IR) having the same number of turns and the same conductor height and section, the interior winding being the transformer primary, and the exterior winding being the secondary winding, provided with voltage load adjustment, by means of some roll adjusting sliders (R1 and R2), which are displaced on the stripped areas of the secondary winding (IR), in the first half of the range of adjustment, the secondary winding (IR) being isolated by the primary winding (IP), afterwards being connected in series therewith, thereby it contributing to making the second half of the adjustment range.</p> |
