Trip device of circuit breaker
US6225588A · kind A · utility
1Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Sep 7, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2077/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A trip device of a circuit breaker that operates speedily when an enormous abnormal current such as short-circuit current flows is provided. The trip device includes a pressure detection space having a wall portion formed of a repeatedly usable thin plate, an operating rod which protrudes from the pressure detection space when the pressure in the pressure detection space increases, and a return spring which returns the operating rod. The pressure detection space is arranged in the vicinity of switching contacts, and the operating rod is arranged to release a trip latch mechanism when it protrudes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.