Circuit breaker
US4689588A · kind A · utility
13Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1986 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Jul 2, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a circuit breaker which has an arc runner (2) fixed on a curved fixed conductor (1), an upright part (11b) is formed in extended part of the fixing part (2B) of the arc runner (2); and the upright part (11b) works to retain the arc to prevent from excessive outward running of arc, and further, when made of ferromagnetic plate, also works to shield undesirable effect by magnetic field of power source side current on arc commutation from intercontact-point path to arc-runner path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.