| 摘要 |
<p>PURPOSE:To enhance a winding utility rate by winding two positive and negative group windings and a power winding on the same core leg in such a manner that predetermined windings become substantially concentrically cylindrical shape. CONSTITUTION:A set of first and second 3 windings are aligned axially and wound on the outer periphery of the core leg 8 of a transformer. The set of the first 3 windings are so disposed that first positive group winding 9a, first power winding 11a and first negative group winding 10a are disposed sequentially from inside substantially in a concentrically cylindrical shape, and the set of the second 3 windings are disposed similarly at the windings 9b-11b. Power windings 11a, 11b are connected in parallel to a power source, and positive and negative group windings 9a-10a are connected to positive and negative group converters. Thus, the windings 9a-10b are paused for a period corresponding to the half of the total period, but the windings 11a, 11b are energized so that the ampere-tubes coincide. Accordingly, the windings 11a, 11b are energized over the total period.</p> |
