Sensing and control electronics for a power grid protection system
US8537508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2011 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Jul 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/0455
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and method for detecting potentially harmful harmonic and direct current signals at a transformer are disclosed. One such system includes a plurality of detection components electrically connected to electrical signal lines leading from one or more connection points on a power grid, and a plurality of threshold detectors, each threshold detector configured to compare an incoming signal from a detection component to a predetermined signal having a threshold. The system also includes a controller receiving an output from each of the plurality of threshold detectors and configured to drive at least one external component in response to receiving an indication from at least one of the plurality of threshold detectors of a detected signal above a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.