Circuit breaker including forced contact parting mechanism capable of self-retaining under short circuit condition
US5252933A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Jul 11, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a circuit breaker including a first linking member for switching fixed contacts provided in a main current path. The first linking member is operated by a circuit switching mechanism using a voltage-operated electromagnet, a forced contact parting mechanism upon short circuit condition using a current-operated electromagnet connected in series to the main path, and a spring releasing mechanism responsive to flow of overcurrent for operating. The forced contact parting mechanism upon short circuit condition includes a link mechanism including self-retaining/self-resetting function between the first linking member and the current-operated electromagnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.