Circuit interrupter employing a linear transducer to monitor contact erosion
US8952826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Jun 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6662
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit interrupter includes, a first contact and a second contact, the second contact being moveable relative to the first contact, a drive assembly structured to move the second contact relative to the first contact, and an erosion monitoring device including a linear transducer coupled to a portion of the drive assembly. The liner transducer is structured to generate an output signal representative of an amount of linear displacement of the portion of the drive assembly, wherein the erosion monitoring device is structured to monitor a degree of erosion of at least one of the first contact and the second contact based on the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.