Arc extinguishing aid
US6683764B1 · kind B1 · utility
5Cited by
4References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/596
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention discloses an arc extinguishing aid with an externally powered magnetic blowout coil 3 for switching low currents in which the current direction in the externally powered magnetic blowout coil 3 is switched based on the detection of the current direction in the primary circuit of a DC power switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.