Switchgear assemblies having switching devices
US6483066B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2001 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Apr 23, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/66276
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to switchgear with switching devices that can be controlled by magnetic drive devices, especially vacuum circuit breakers, wherein the switching devices are arranged by blocks in a housing in correspondence with the number of phases to be switched, said housing enclosing the switching devices on three sides and said devices being releasably fixed by screws in the housing by a top and a bottom contact connection piece. The switching devices (VS) have separate housings that are formed by pole shells (PS) arranged as a mirror image of each other and the top and bottom contact connecting piece (KAo, KAu) form a top and a bottom cooling body (KKo, KKu) which are releasably fixed between separately arranged vacuum circuit breaker fixing webs (VB . . . ) of the pole shells (PS), wherein the top cooling body (KKo) is fitted in the peripheral area of the switching devices (VS) with ventilation slots (LS . . . ) extending centrally in relation to the switching devices and the bottom cooling body (KKu) is fitted in the peripheral area of the switching devices (VS) with air inlets (LE) arranged symmetrically in relation to the central axis. Said switchgear are used in pow…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.