Interlock for switchgear
US6066814A · kind A · utility
27Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1999 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Feb 18, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B11/133
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrical switchgear for receiving either a vacuum circuit breaker or a dummy element and including a levering-in assembly with a positional interlock bar that is operated by a levering-in block in the levering-in assembly and by a finger on the dummy element. Access to the levering-in device is blocked when the source breaker is in the connect position. A key to unlock the access is obtained by levering the source breaker or a dummy out to the test position and locking it in that position or by levering a dummy element to a connect position and locking it in that position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.