Vacuum interrupter with two contact systems
US6720515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Oct 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/6668
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention relates to a novel vacuum interrupter. The aim of the invention is for said is for said interrupter to perform the functions switching, disconnection and earthing and to be economically producible. Said aim is achieved by means of a first contact system produced with radial- or axial-magnetic filed contacts, the movable contact of which is connected to the movable contact of a second contact system, comprising annular discs. The stationary contact of the second contact system forms an annular part of the housing to which two tubular insulators are connected. One of the insulators encloses both contact systems and is protected by a screen fixed to the movable contact piece, which separates the plasma physics of the both contact systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.