Compact earthing switch for gas-insulated switchgear assemblies
US7122759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2005 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Feb 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B13/075
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A compact earthing switch (1′) is provided by a mounting lid (10) of the gas-insulated switchgear assembly (15) having a concave physical volume (100) which extends the gas chamber (9) and by the earthing switch fixed contact (12) being mounted on an inner side (10e) of the mounting lid (10) and being arranged at least partially in the physical volume (100) of the mounting lid (10). Exemplary embodiments relate, inter alia, to: an essentially cylindrical mounting lid (10; 10a 10e); an earthing switch fixed contact (12) having a physical length (L) which is smaller than an axial physical depth (T) of the physical volume (100); and a large diameter (D) of the mounting lid (10) for simplified mounting and maintenance of active parts 7a, 7b) in the switchgear assembly (15). Advantages include: the compact design for the grounding device the ability of the earthing switch fixed contact (12) to be ready-mounted on the mounting lid (10); and the integration of the earthing switch fixed contact (12), which is integrated in the mounting lid (10), in a combined disconnector/earthing switch (1′).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.