Arc resistant switchgear vertical exhaust system
US8101881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2009 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Jul 22, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B13/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An exhaust system for exhausting gases and molten debris caused by an electric arc within a switchgear. The exhaust system includes a switchgear having lower and upper compartments and an exhaust unit externally mounted to the switchgear. A wall panel of the switchgear includes blow out panels coinciding with openings in the lower compartment and corresponding ventilation flaps in a top surface of the exhaust unit to exhaust gas from the lower compartment out the blow out panels in a vertical direction, exiting through the flaps. The upper compartment includes ventilation flaps for exhausting gas in a vertical direction directly through the flaps and optionally through side-mounted blow out panels that communicate with the vertical vent path to the flaps in the top of the exhaust unit. A bus compartment in the exhaust unit includes a vent path to flaps in the top of the exhaust unit for exhausting gas produced by bus arcing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.