Switch contacts with improved fault-closing capability
US5013876A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1988 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Sep 12, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H31/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contact arrangement is provided for a medium- or high-voltage switch including two contact surfaces that are generally parallel and relatively movable via a predetermined path between open and closed positions. During closing, the two contact surfaces define predetermined areas of relative engagement between the two contact surfaces. The movement along the predetermined path during contact engagement generally defines a first direction. The two contact surfaces are arranged relative to each other and the first direction such that, during closing, the relative engagement between the two contact surfaces defines a locus along each contact surface that is non-parallel to the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.