Switchgear device having at least one single-pole breaking unit comprising a contact bridge and circuit breaker comprising one such device
US9159508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2010 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Oct 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H1/2058
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switchgear device having a single-pole breaking unit which includes one of a pair of stationary contacts connected to a line-side current conductor, a movable contact bridge for closing and opening the stationary contacts, a line-side panel, a load-side panel opposite the line-side panel and two opposing lateral-side panels, which panels surround the stationary contacts and contact bridge, and form arc extinguishing chambers with a stationary contact within each chamber, an opening volume between chambers, and a quenching gas exhaust channel connected to a chamber, and opening through the line-side panel, which is opposite another load-side panel for contact with a trip device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.