Shunt trip control circuits using shunt trip signal accumulator and methods of operating the same
US9577419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2013 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Jan 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H83/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Some embodiments of the inventive subject matter provide an apparatus for driving a shunt trip actuator for a circuit breaker or other switch. The apparatus includes an energy storage device and an accumulator circuit configured to store energy in the energy storage device responsive to a shunt trip control signal. The apparatus further includes a detector circuit configured to generate a detection signal responsive to a state of the energy storage device meeting a predetermined criterion and a driver circuit configured to drive the shunt trip actuator using the energy stored in the energy storage device responsive to the detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.