Arc-blasting switch possessing a break chamber with low gas compression and reciprocating piston movement
US6489581B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2001 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Apr 10, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The arc blast switch can have single or dual contact movement and possesses a break chamber with low gas compression, the switch includes a first contact and a second contact, the first contact being movable in a longitudinal axis and being secured to the break chamber in which the gas is compressed by a piston. A device for displacing the piston is arranged so that its movement changes direction inside the case of the switch after the gas compression stage, and the device includes a telescopic link connected to the piston. The length of the displacement of the piston inside the case during the compression stage is not less than the length of the displacement of the first contact during the compression stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.