发明名称 |
LE MIT EINWEG-WICKEL- UND -BAND-WERKZEUG UND INTEGRIERTEM WICKELKERN |
摘要 |
<p>A method of manufacturing transformer windings embedded in casting resin is disclosed which utilizes an integrated winding mandrel for producing a non-standard oval shaped epoxy encapsulated low voltage coil for dry type distribution transformers. The method includes a process of winding a low voltage coil of alternate layers of copper conductor (24) and insulating tape (26), over a disposable mold formed by wrapping steel sheet material over inner mold support plates (14), the formed mold acting as both a winding mandrel and as an inner mold (20) for epoxy encapsulation. Both the inner and outer molds are made of low cost sheet metal utilizing a "wrap and band" process. The complete winding and molding processes can all be conducted utilizing a conventional square mandrel shaft (12) on a standard coil winding machine (10).</p> |
申请公布号 |
DE60037323(T2) |
申请公布日期 |
2008.11.27 |
申请号 |
DE2000637323T |
申请日期 |
2000.08.31 |
申请人 |
ABB INC. |
发明人 |
LANOUE, THOMAS J.;LAMBERT, WAYNE;SARVER, CHARLES |
分类号 |
B29C33/00;B29C33/38;B29C63/08;B29C63/12;B29C70/70;B29C70/72;H01F41/06;H01F41/12 |
主分类号 |
B29C33/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|