Power supply for faulted circuit indicator
US9847671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2015 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Mar 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J50/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A faulted circuit indicator includes a microprocessor or discrete logic to determine a fault condition and initiate one or more fault indications, a super capacitor, a battery, and power supply circuitry for providing power to the microprocessor and one or more fault indicators. The power supply circuitry: inductively receives energy from a power line; determines whether an induced voltage is sufficient to power one or more functions of the FCI device; and if not, determines whether available voltage from the super capacitor is sufficient to power the one or more functions of the FCI device. If so, the power supply circuitry draws voltage from the super capacitor and, if not, the power supply circuitry draws voltage from the battery when it is determined that the available voltage from the super capacitor is not sufficient to power the one or more functions of the FCI device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.