| 摘要 |
<p>PURPOSE:To obtain the title transformer wherein its DC resistance value and its AC resistance value are low, it can be cooled easily and it can be made small-sized and lightweight. CONSTITUTION:A secondary conductor 10 is constituted in such a way that a plurality of pairs of secondary-conductor members 11 are arranged and installed in parallel. A cooling-water passage 15 which is passed through the inside is formed in the secondary-conductor members 11. The secondary-conductor members 11 which form the pairs for the secondary conductor 10 are connected respectively in parallel with each other. The individual secondary-conductor members 11 are sandwiched between and bonded by primary-conductor members which are composed of a plurality of windings which are connected in series of a primary conductor. Consequently, the cross-sectional area of the secondary-conductor members 11 is expanded, and their DC resistance value can be lowered. When a cooling liquid is made to flow in the cooling-water passage 15 which has been passed through the individual secondary- conductor members 11, their cooling effect is increased. The contact area of the secondary-conductor members 11 with the primary conductor 20 is expanded. The AC resistance value of the title transformer due to a skin effect can be reduced.</p> |
