Circuit interrupter with test actuator for ground fault and arc fault test mechanisms
US5982593A · kind A · utility
102Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | May 12, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/0015
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A miniature circuit breaker incorporating ground fault protection and arc fault protection includes a test mechanism including a ground fault test circuit for testing a ground fault detector trip mechanism, and an arc fault test circuit for testing an arc fault detector trip mechanism. A state machine circuit automatically controls the test mechanism to sequentially test both of the ground fault and arc fault detector trip mechanisms. A test push button is interconnected with the state machine circuit and, when pressed, initiates sequential testing of both of the ground fault and arc fault trip mechanisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.