| 发明名称 | Method for impregnating a high voltage insulation of a winding bar | ||
| 摘要 | A method is for impregnating a high voltage insulation of a winding bar (10), the winding bar (10) having a conductive bar (1) around which layers of insulating mica tape defining said high voltage insulation are wrapped. The method includes enclosing the winding bar (10) in a flexible sleeve (3), applying a vacuum in the flexible sleeve (3) to extract the gases contained in the insulating mica tape, supplying an impregnating resin into the flexible sleeve (3) to impregnate the mica tape (2), and curing the resin. The impregnating resin is supplied into the flexible sleeve (3) at a pressure less than 1.5 bar. | ||
| 申请公布号 | US9246374(B2) | 申请公布日期 | 2016.01.26 |
| 申请号 | US201012971575 | 申请日期 | 2010.12.17 |
| 申请人 | ALSTOM RENEWABLE TECHNOLOGIES | 发明人 | Baumann Thomas;Vezzoli Massimiliano |
| 分类号 | B29C70/44;H02K15/12 | 主分类号 | B29C70/44 |
| 代理机构 | Buchanan Ingersoll & Rooney PC | 代理人 | Buchanan Ingersoll & Rooney PC |
| 主权项 | 1. A method for impregnating a high voltage insulation of a winding bar having a conductive bar around which layers of insulating mica tape defining said high voltage insulation have been wrapped, the method comprising: enclosing the winding bar in a flexible sleeve, wherein surfaces of the flexible sleeve are continually in contact with the winding bar, the flexible sleeve including a line connecting it to a vacuum forming system; applying vacuum inside said flexible sleeve and extracting gases contained in the insulating mica tape with the vacuum; supplying an impregnating resin into said flexible sleeve to impregnate the mica tape at a pressure less than 1.5 bar; and curing the resin. | ||
| 地址 | Grenoble FR | ||