| 摘要 |
<p>PURPOSE:To obtain single-phase three wire system outputs having dif ferent voltage economically by executing a third winding only to a main or T transformer, connecting one of the third winding to one part of an output winding for the T or main transformer and using the other as an output terminal. CONSTITUTION:A third winding 5 is installed to a main transformer 1 for a Scott transformer converting three phases into two phases and one end of the third winding 5 is connected to one part of a secondary winding 3 for a T transformer 2 and the other end is employed as an output terminal or the third winding is mounted to the T transformer 2, one end of the third winding is connected to one part of a secondary winding 4 for the main transformer 1 and the other end is used as an output terminal, thus acquiring a single-phase three wire system output. The third winding 5 is wound on the main transformer 1, one end is output as a v terminal, and the other end is connected to a proper section in the output winding 3 for the T transformer 2. When the number of turns of the winding 5 is made half that of the winding 4 and a connecting position to the winding 3 of the winding 5 is brought to a section of half the number of turns of the winding 3 and the vectors of each winding are represented by Eu, Ev and Ew, a vector diagram is as shown in the figure.</p> |
