发明名称 |
HIGH VOLTAGE TRANSFORMER WITH A SHIELD RING, A SHIELD RING AND A METHOD OF MANUFACTURE SAME |
摘要 |
A high voltage transformer including a transformer housing. Internal components and provided in the transformer housing. The internal components are submerged in transformer oil and are provided with insulation for insulating a high voltage winding end. The insulation includes a shield ring arranged above the winding end and a pressboard structure formed in a zigzag pattern arranged around the winding end. The shield ring includes a core covered with a conducting layer and a continuous solid insulation layer outside the conducting layer. The insulation layer includes integrated solid insulation sections of which at least some among themselves having varying thickness. Also a shield ring and a method of manufacture the shield ring. |
申请公布号 |
EP2064715(A4) |
申请公布日期 |
2010.11.10 |
申请号 |
EP20070794169 |
申请日期 |
2007.08.17 |
申请人 |
ABB TECHNOLOGY LTD |
发明人 |
FORSBERG, ERIK;POLANDER, TONY;SVENSSON, LARS-AAKE;VENNERBERG, LARS-ERIK |
分类号 |
H01F27/36;H01F27/28 |
主分类号 |
H01F27/36 |
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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