Switch device having an insulating screen inserted between the contacts during breaking
US4659887A · kind A · utility
7Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1985 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Nov 25, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A screened electric switch in which the screen is inserted at high speed between the contacts and in which a mobile shutter with a sealing surface basically fixed relatively to the housing drives the screen with a speed which is a function of the energy of the arc. This switch is applicable to circuit breaking devices designed to check the rise of short-circuit currents or high steady-state rated currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.