Distribution of cooling air in switchgear cubicles
US5481429A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1995 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Jan 10, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B1/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for distributing cooling air to switchgear cubicles, the method including distributing cooling air or other cooled gas in a series of closely arranged switchgear cubicles (1a-1d) which are insulated from the surrounding air, the cooling air or gas flowing along the same path as the current lines extending through and into the cubicles. The air or gas is distributed to the respective cubicles (1a-1d) in the series of cubicles via channels (5,6a-6d) in the form of protective channels or busbar boxes which constitute semiprotection for the single-phase or multi-phase busbars (4a-4d) which distribute electric current to the cubicles and to the electric equipment present in the cubicles. The cubicles. The direction of the cooling gas distribution is the same as the current direction or reversed relative thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.