Power monitoring system that determines phase using a superimposed signal
US7161345B2 · kind B2 · utility
24Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2004 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Feb 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A power monitoring system comprising a first current sensor suitable to sense first changing electrical current within a first conductor to a first load and a first conductor. A second conductor sensing a first voltage potential provided to the first load. A power monitor superimposes a first signal on the first conductor and first current sensor such that the first signal is sensed on the other of the first conductor and first current sensor. Associating the first voltage potential with first changing electrical current in the power usage calculation of the first load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.