System and method for monitoring circuit breakers
US10903023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2071/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
System and method for monitoring a travel curve of moving part of circuit breaker comprising: device for optically monitoring travel path and comprising: light source; light detection device; optical element having plurality of zones with different optical properties which are alternately arranged, the optical element being provided on moving part of circuit breaker, light being intensity-modulated by the optical element and being received by light detection device during circuit breaker operation. The system further comprises an accelerometer mounted to circuit breaker, control unit for receiving signals from light detection device and from accelerometer, the control unit being configured to determine the travel curve based on the detected modulated light and on the detected vibration signal, the vibration signal being employed to identify a change of direction of movement of the moving part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.