Detection of an AC input phase-loss on a multi-phase AC servo drive
US7480124B2 · kind B2 · utility
9Cited by
0References
17Claims
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Key dates
| Filing date | Jan 31, 2007 |
| Grant date | Jan 20, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/253
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods that detect a phase loss condition in a three-phase electrical power source are presented. The system includes a detection component that measures and/or monitors a magnitude and frequency of a voltage of a power source, and a controller component that compares measured and/or monitored voltage characteristics to characteristics associated with phase loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.