Earthing switch
US7297890B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2005 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Jan 3, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B11/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An earthing switch for a medium voltage switchgear comprising a plurality of fixed contacts, a plurality of movable contact surfaces which are suitable to contact said plurality of fixed contacts and a support structure suitable to support moving means which allow the movement of said second plurality of contact surfaces. The earthing switch comprises at least one guide which comprises a fixed element and a moving element coaxially coupled therewith, said moving element being operatively connected to said movable contact surfaces so as to allow their movement along a substantially rectilinear direction from a first position, corresponding to an open condition of said switch, to a second position corresponding to a closed condition of said switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.