| 摘要 |
<p>PURPOSE:To make the promotion of characteristic improvement and miniaturization with weight- lightness, by means of winding three sets of primary and secondary windings on three legs of main legs of the core, having three-phase three legs or five legs, to make a connection so as to obtain a three-phase power source and a single-phase power source, with the primary winding made into DELTA-connection and the secondary winding into V-connection. CONSTITUTION:A primary winding W1 is made into a DELTA-connection, and a secondary winding W2, as shown by the drawing, is constructed into a V-connection and a single-phase winding W3. And a three-phase three-leg core 1 or three-phase five-leg core 5 is used as the core, with every set of the primary and secondary windings, that constitutes the V-connection three- phase side, wound on two legs of the main legs, and with one set of the primary and secondary windings, that constitutes the single-phase side, wound on the remaining one leg. And primary side terminals U, V, W of the winging are connected in delta and secondary side terminals u, v, w and a, b, n are made into a V-connection three-phase and a single-phase respecticely. In this way, a mutual interference is not generated between the three-phase side and the single-phase side, with a good characteristic obtained as well as with a reduction made capable also for the installation area and the weight.</p> |
