System and method for controlling trip unit mechanical stress
US6822543B1 · kind B1 · utility
5Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2003 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Sep 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/121
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A trip system for a circuit breaker includes a current sensor and a stop surface, the current sensor having a contact surface, a first end that is supported, and a second end with a degree of freedom. The current sensor, arranged for receiving an electric current, undergoes a first deflection in response to a first current and a second deflection in response to a second current, the first deflection resulting in clearance between the contact surface and the stop surface, and the second deflection resulting in contact between the contact surface and the stop surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.