摘要 |
PURPOSE:To prevent overheat of a tank due to leaking magnetic flux of a series transformer winding by winding two series winding units oppositely to each other and by providing the two series winding units in concentric cylindrical manner. CONSTITUTION:In a core leg 9, an exitation winding 6, a series winding unit 72 connected to a primary terminal U and a series winding unit 73 connected to a secondary terminal (u) are provided in concentric cylindrical manner of the windings in order from inside the core leg 9 toward outside. Each series winding unit 72, 73 has the same number of turns but is wound oppositely to each other and the lower parts of the series winding units 72, 73 are connected in a bundle by a terminal X to the shunt winding of the opposite phase of an adjusting transformer. |