The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Apr. 25, 2019
Abb Power Grids Switzerland Ag, Baden, CH;
David Roby, Barden Ridge, AU;
Maciej Orman, Malopolskie, PL;
ShunChong Li, Shanghai, CN;
Stevan Marinkovic, Wettingen, CH;
Yannick Maret, Dättwil, CH;
ABB POWER GRIDS SWITZERLAND AG, Baden, CH;
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.