Apparatus for and method of monitoring and controlling a power system
US5866956A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Apr 23, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A apparatus for monitoring and controlling a power system having an alternating current bus. The apparatus includes a module which is coupled to the bus and which digitizes and modulates at least one of a voltage waveform and a current waveform present on the bus. A control unit which is also coupled to the bus demodulates the digitized waveform and calculates a parameter selected from the group consisting of average current, root mean square current, peak current, current crest factor, average voltage, root mean square voltage, peak voltage, voltage crest factor, voltage surge, current waveform shape, voltage waveform shape, current waveform harmonic structure, voltage waveform harmonic structure and combinations thereof. The calculated parameter is used to monitor conditions on the bus and control loads connected to modules of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.