Method and apparatus for detecting abnormal conditions of switch gears
US4400981A · kind A · utility
6Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1981 |
| Grant date | Aug 30, 1983 |
| Priority date | — |
| Expiry date | Oct 28, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for detecting an abnormal condition of a switch gear device including a switch gear, for instance a circuit breaker driven by an operating device. A device for detecting the operating force applied from the operating device to the circuit breaker is mounted between the operating device and the circuit breaker. Data is obtained from the detecting device, expanded in time for analysis, and compared with data obtained under a normal state to judge the presence or absence of an abnormal condition within the switch gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.