Power breaker
US5905243A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1997 |
| Grant date | May 18, 1999 |
| Priority date | — |
| Expiry date | Aug 28, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/7015
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This power breaker has an arcing chamber which is filled with an insulating medium and extends along a central axis (2). This arcing chamber is provided with a power current path which has two erosion contact arrangements (5, 6) which are arranged on the central axis (2), are at a constant distance from one another in the axial direction and bound an arcing zone. The arcing chamber also has a heating area (13), which is connected to the arcing zone, and a bridging contact which electrically conductively connects the erosion contact arrangements (5, 6) in the connected state. The bridging contact is arranged centrally in the interior of the erosion contact arrangements (5, 6). An annular gap (36) is provided between the erosion contact arrangements (5, 6) and opens directly into the heating area (13). In this power breaker, the flow behavior is significantly improved in the region between the arcing zone and the heating area (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.