| 摘要 |
<p>PURPOSE:To miniaturize whole construction, ensuring positive and negative group impedance being substantially equal to each other by disposing a primary winding phase shift winding between a primary main winding and a second wiring located inside the former. CONSTITUTION:One secondary winding 22 is wound on a leg 21a of an iron core 21, and on the outer periphery of the secondary winding 22a primary winding 23 is wound. Further, on the outer periphery of the secondary winding 23 the other secondary winding 24 is wound. Hereby, two secondary windings 22 and 24 are provided inside and outside the primary winding 23. In this case, the inside secondary winding 22 is connected with a positive group converter of a cycloconverter, and the outside secondary winding 24 is connected with the negative group converter of the cycloconverter. The primary winding 23 comprises a primary main winding 25 and a phase shift winding 26 and is connected to a commercial three phase AC power supply. The primary chief winding 25 and the phase shift winding 26 are connected in the so-called jig-zag manner.</p> |
