Inverse current injection-type direct current blocking device and method using vacuum gap switch
US11049677B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 19, 2017 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2009/546
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The DC interrupting device includes a main current conduction unit including a main interrupting switch, which is a mechanical switch, a reverse current power supply unit connected to an input terminal of the main current conduction unit and configured to generate a predetermined reverse current, and a reverse current conduction unit configured to supply the reverse current to an output terminal of the main current conduction unit. The reverse current power supply unit includes a first reverse current dedicated capacitor charged by a voltage applied to an input terminal of the main current conduction unit, a polarity reversing inductor configured to reverse a polarity of the first reverse current dedicated capacitor, and a reverse current power supply unit switch configured to perform circuit connection such that the polarity reversing inductor reverses the polarity of the first reverse current dedicated capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.