Vacuum interrupter with a spacially modulated axial magnetic field contact
US4401868A · kind A · utility
4Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1981 |
| Grant date | Aug 30, 1983 |
| Priority date | — |
| Expiry date | Jun 29, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6644
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum circuit interrupter including axial magnetic field generating means, and arc contact structure comprising means for spacially modulating the axial magnetic field over the area of the contact. This contact structure produces adjacent regions of different magnetic field strength over the contact area, whereby a plurality of spaced apart low arc voltage, stable parallel arc current paths are established over the contact area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.