发明名称 |
TRANSFORMER OR INDUCTANCE COOLED BY INSULATING LIQUID, METHOD AND DEVICE FOR MANUFACTURING THEM |
摘要 |
<p>An electrical inductive apparatus, for example a transformer or a reactor, comprises a core and at least one winding wound around the core and formed of a plurality of superimposed turns of sheet-formed electrically-conducting material. The winding includes at least one element which, together with a surface of at least one of the turns of the winding, defines a plurality of channels for conducting an electrically-insulating fluid in contact with a part of said surface. These channels are defined between adjacent pairs of a plurality of connected together elongated spacing means of the element which are arranged in substantially parallel spaced relationship and which contact said surface. Each spacing means has a thickness which increases from a central region of the spacing means towards each of its opposite ends. This enables the turns of the winding to be flared out at their opposite ends in a suitable manner with respect to the electrical properties of the winding. The element may be manufactured from a sheet of insulating material by profile sawing in a processor-controlled sawing machine.</p> |
申请公布号 |
EP0058905(B1) |
申请公布日期 |
1984.10.17 |
申请号 |
EP19820101098 |
申请日期 |
1982.02.15 |
申请人 |
ASEA AB |
发明人 |
MORITZ, BERTIL, DIPL.-ING. |
分类号 |
H01F27/28;H01F27/32;H01F41/06;H01F41/12;(IPC1-7):01F27/32;01F41/12 |
主分类号 |
H01F27/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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