Insulated earthing switch for gas-insulated switchgear assemblies
US7122758B2 · 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 primaryH01H31/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An insulated earthing switch for encapsulated, gas-insulated high-voltage switchgear assemblies is characterized in that an encapsulation-side earthing switch contact, a measuring electrode and an earthing switch housing are arranged altogether on a single earthing switch mounting side, and an encapsulation-side earthing switch contact and the measuring electrode are electrically insulated with respect to the earthing switch housing and the GIS housing. Exemplary embodiments contains an encapsulation-side earthing switch contact and a measuring electrode being electrically insulated from drive cables and drive rods; an encapsulation-side earthing switch contact in the form of a movable earthing switch contact or an earthing switch fixed contact; and an earthing switch housing being permanently electrically conductively connected to the GIS housing via a combined supporting and measuring flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.