Circuit breaker
US9431184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Nov 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6662
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum interrupter includes a fixed contact and a movable contact; a driving unit including a main shaft and a plurality of links interlocked with the main shaft, to supply a driving force to open and close the vacuum interrupter; a power transmission unit to transmit a driving force of the driving unit to the movable contact; an over-current relay to detect a fault current and to output a trip signal to break a large-scaled current conduction; a trip unit to generate and transmit a mechanical operation force to the driving unit when a trip signal is output from the over-current relay; and a Thomson drive including a Thomson coil and a repulsive plate, to rotate the main shaft to an opening position or to transmit the trip signal to the trip unit, to promptly breaking a fault current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.