Electric switching device
US6518865B1 · kind B1 · utility
10Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2002 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Feb 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H79/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric switching device for fast closing of a high current in a power network comprising a first electrode (1), a second electrode (2), a movable contact element (3) closing said first and second electrodes, and an operating device. The operating device comprises a helically wound first coil (6) secured to the first electrode. The movable contact element comprises a flange (4) making contact with the coil. A current pulse flowing through the coil forms a repulsive force between the coil and the flange, said repulsive force throwing the movable contact element to the second electrode and completing the closing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.