Circuit breaker with selective locking
US5357394A · kind A · utility
102Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1992 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Sep 15, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electronic trip device comprises a device for selecting the faults which are to bring about locking of the circuit breaker contacts in the open position. When a fault in the power supply system protected by the circuit breaker leads to a trip, the trip device orders locking if this fault is one of the faults selected by the selection device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.