| 摘要 |
<p>PURPOSE:To contrive to reduce the weight of core and to curtail the size of external form of the transformer device by a method wherein the yoke part of neighboring same phase cores of different kind transformers being put in the same outside case is made to be in common. CONSTITUTION:The three phase voltage regulating transformer A has respective windings 1a, the three phase main transformer B has respective windings 1b and are respectively put in the outside case 4. The respective same phase cores of the both transformers A, B are arranged being adjacent with each other, the yoke part 3 of respective core is made in common and only the difference between main fluxes of the both transformers A, B, for example phiW-phiw, is made to flow in the commonly made yoke part 3. Accordingly because the sectional area of core of the yoke part 3 can be made to be smaller than that of yoke parts 2a2, 2b2 of the other cores, the necessary weight of the whole cores can be reduced and the size of external form can be curtailed.</p> |
