Fast switch
US9478383B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2015 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Mar 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/2409
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The fast switch includes: a housing; a vacuum interrupter installed in the housing, connected to a main circuit, and configured to open and close the main circuit; a contact spring coupled to a mover of the vacuum interrupter, and configured to provide a contact force; an insulating rod connected to the contact spring; a permanent magnet actuator connected to a lower end of the insulating rod, and configured to provide a switching driving force; a first capacitor configured to provide a discharge current to a coil of the permanent magnet actuator; a driving coil connected to a lower end of the permanent magnet actuator; and a second capacitor configured to provide a discharge current to the driving coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.