Method and structure for monitoring breaker status contacts on circuit breaker applications
US9455111B2 · kind B2 · utility
1Cited by
5References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Oct 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2071/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A trip control circuit for a circuit breaker which provides for self-diagnostics includes a normally opened trip contact, a tripping circuit, and a signal light in series with the tripping circuit and the trip contact. The trip control circuit also includes a flasher circuit constructed and arranged to provide signaling of an abnormal condition of a circuit breaker to the signal light, while permitting the circuit breaker to trip provided that a cause of the abnormal condition signaled is not one which prevents tripping of the circuit breaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.