Direct current hybrid circuit breaker with reverse biased voltage source
US11646575B2 · kind B2 · utility
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12References
20Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 4, 2021 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Aug 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Within a direct current hybrid circuit breaker (DC HCB), a capacitance is provided in a semiconductor switch path in series with a semiconductor switch and the semiconductor switch is in parallel with a surge arrestor to facilitate opening the DC HCB. The semiconductor switch path is connected in parallel with a mechanical switch path that includes a mechanical switch. The circuit causes the current through the mechanical switch to ramp down while the current through the semiconductor switch ramps up to a supply current. The mechanical switch can open without current and against no recovery voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.