High-speed current-limiting device having a contact reclosing retarding member
US4118681A · kind A · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | May 6, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H77/108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Current-limiting device having a movable contact vigorously moved in the open circuit position by an electromagnetic repulsion device at the appearance of a short-circuit current. A retarding member is mechanically linked to the movable contact to delay the reclosing of the contact and to prevent a reclosing before tripping of the circuit breaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.