Gas-insulated surge arrester
US7369390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2005 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Jan 3, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The surge arrester contains a tubular encapsulation (1) of electrically conductive material that is filled with an insulating gas, an insulator (17) that is held on the encapsulation (1) and serves for supporting a current conductor (R) that is connected to a high voltage, an active part (2R) that is arranged in the encapsulation (1) and comprises at least one varistor column (3) that is aligned along the encapsulation axis (A) and a field control element (6). In order to maintain the manufacturing costs of this arrester at a low level, the field control element (6) and a first plug-type contact (16) of a plug connection (15) are held on the current conductor (R) of the insulator (17), and a high-voltage electrode (4) of the varistor column (3) that is connected in an electrically conductive fashion to the current conductor (R) via the plug connection (15) contains the second plug-type contact (14) of the plug connection (15).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.