| 摘要 |
<p>PURPOSE:To make the same the voltage regulation between the neutral point and two ends of a transformer by employing a sectional winding for the secondary winding common to the single phase and the three phase. CONSTITUTION:The ones 1 and 4 and 2 and 3 of the windings 1-4 composing a secondary winding common to the three phase and single phase are separately connected in series to form windings u-theta, and v-theta. The windings in the common phase thus arranged makes equivalent the magnetic position between a primary winding 5 and the winding u-theta and v-theta thereby resulting in an equal impedance. Therefore, when a load is set between terminals u and theta those v and theta, the changes in the voltage of the windings is made the same in the pattern without imbalance thereof improving the voltage characteristics.</p> |
