Processor-based circuit interrupting devices
US9276393B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2012 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Feb 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/338
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Circuit interrupting devices are provided. One circuit interrupting device includes a fault sensor configured to output a sensor signal; a voltage sensor configured to sense a reference voltage; and a controller configured to determine an occurrence of an actual fault based on the sensor signal and the reference voltage. The circuit interrupting device further includes an amplifier configured to receive the sensor signal and the reference voltage and output an amplified signal; an analog-to-digital converter configured to receive the reference voltage and the amplified signal and output respective digital signals corresponding to the reference voltage and the amplified signal; and a line interrupt assembly configured to interrupt current flow through a conductive path when a characteristic of the sensor signal exceeds an actual fault threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.