Direct-current circuit breaker
US9413157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2012 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | May 30, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct-current circuit breaker includes a switching unit inserted in the direct-current line; and a commutation circuit that includes a series circuit including a first current-limiting element and an interrupting unit that forms a current zero point by superimposing a resonance current on a direct current flowing in the direct-current line and interrupts the direct current at the current zero point, that is connected in parallel with the switching unit, and that becomes a flow path for the direct current after the switching unit is opened, wherein current interruption is performed by the interrupting unit after the switching unit is opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.