Instantaneous trip device of a circuit breaker
US5103198A · kind A · utility
120Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1991 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | Apr 16, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2077/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A limiting circuit breaker with a molded case comprises an overpressure actuator which, when an overpressure occurs in the arc extinguishing chamber due to the action of an arc drawn by the electrodynamic repulsion of the contacts, brings about actuation by a piston, subjected to this overpressure, of the circuit breaker trip bar. The overpressure actuator forms an almost leaktight assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.