Triggered arc flash arrester and switchgear system including the same
US8861144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Oct 30, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6643
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A triggered arc flash arrester includes an envelope structured to operate at: a pressure less than about 1.33 Pa; or a pressure greater than 0.10857 MPa; a plurality of conductors partially disposed within the envelope; a number of gaps disposed between the plurality of conductors within the envelope; and a shorting structure selected from the group consisting of a triggered gap and a fuse. The shorting structure is operatively associated with the number of gaps. The shorting structure is structured to electrically short the plurality of conductors either together or to ground, in order to create an arc within the envelope which is electrically in parallel to an arc fault causing the arc fault internal to switchgear to be extinguished.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.