Mechanical control device for an electrical switchgear with three switching positions, provided with a selection lever cooperating with a cam
US7227091B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2005 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Nov 4, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H31/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control device (10) for an electrical switchgear with three switching positions including a closed position, an open position and an earthing position. The switchgear includes a main shaft (14) and a drive shaft (28). The control device includes a mode selector lever (30) designed to select one operating mode among a motor driven switching mode, a manual switching mode between the open position and the closed position of the electrical switchgear, and a manual switching mode between the open position and the earthing position of the electrical switchgear. The mode selector lever has an opening with a curved contour, and the control device includes a cam disk (50) with a cam (54) capable of moving inside the opening (40). The control device may be applied to an isolating switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.