Method and apparatus for testing spring powered switches
US6286377A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Mar 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H11/0062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Operation of a medium voltage spring powered circuit breaker is analyzed by determining the linear position of a selected driven part of the circuit breaker operating mechanism. When the charged closing springs of the operating mechanism are released, the selected driven part, such as a vacuum interrupter stem or push rod, moves to a new linear position as actuated by the release of the charged closing springs. Linkages are provided to the driven parts. LVDT sensors engage each of the linkages to determine the linear positions of the driven parts. A processing unit collects operation data for the operating mechanism when the charged closing springs are released to actuate and produce linear movement of the driven parts. The operation data includes a plurality of the linear positions of the driven parts. A microprocessor-based routine and interface outputs the operation data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.