DC current interruption system able to open a DC line with inductive behaviour
US9450396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2012 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | May 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/596
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention pertains to a DC current interruption system able to open a DC line with inductive behavior, comprising a primary mechanical breaker (S0), a secondary mechanical breaker (S1) and an electronic overvoltage protection circuit (B1, B2) comprising at least one transistor. The DC current interruption system of the invention furthermore comprises an electronic opening system (72, 76) comprising a passive circuit able to auto-bias the electronic protection circuit (B1, B2) upon the opening of said primary mechanical breaker (S0), so as to trigger a switching of said at least one transistor (M1, M2, IG1) making it possible to limit the voltage and the current in the DC line, total interruption of said DC line being obtained by subsequent opening of said secondary mechanical breaker (S1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.