Vacuum cartridge, notably for a medium voltage electrical cicuit breaker or switch and a switch incorporating such a cartridge
US5591948A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6661
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum cartridge for a medium voltage electrical switch, as well as a switch incorporating such a cartridge comprising an enclosure closed by two end-plates in which there are housed three contacts extending axially. Two of these contacts are stationary and comprise a disk-shaped contact part and are securely fixed respectively to the two end-plates, whereas the third contact is formed by a rod slidably mounted in the second stationary contact, the rod being brought into contact with the first stationary contact during a period sufficient to generate an electrical arc between the two stationary contacts in order to perform breaking of an electrical circuit. A switch comprises an enclosure filled with sulphur hexafluoride including a cartridge as previously described, two main contacts electrically connected in parallel to the stationary contacts and an operating mechanism connected to selected aformentioned contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.