| 摘要 |
<p>PURPOSE:To greatly reduce the total dimensions and weight of single-phase transformer units, by coupling three high-voltage windings in series with each other and coupling three other high-voltage windings in series with each other to provide two groups of high-voltage windings, connecting both the ends of these groups in parallel with each other, oupling three low-voltage windings in parallel with each other, coupling three other low-voltage windings in parallel with each other and leading out the couples of the low-voltage windings. CONSTITUTION:High-voltage windings 15A...17A provided around legs of the single-phase transformer units 4, 5, 6 are connected in series with each other through connection ducts 34A, 36A so that a group of high-voltage windings is formed. High-voltage windings provided around other legs of the transformer units are connected in series with each other so that another group of high- voltage windings is formed. Both the ends of these groups of high-voltage windings are coupled in parallel with each other so that a pair of coupled ends is used as a line terminal U and another pair of coupled ends is used as a neutral point V. Low-voltage windings 25A...27A provided around the same legs as the high-voltage windings 15A...17A are coupled in parallel with each other through connection ducts 35A, 37A and led out through low-voltage winding terminals U1, V1. Low-voltage windings provided around the other legs are also led out in the same manner. This results in greatly reducing the total dimensions and weight of the single-phase transformer units without deteriorating their electric properties.</p> |
