Cylindrical coil and contact support for vacuum interrupter
US5804788A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1997 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Feb 18, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6644
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum interrupter includes a pair of separable electrode assemblies within a vacuum envelope, each electrode assembly including a contact confronting the contact of the other electrode assembly and an electrode coil assembly located behind the contact for generating a magnetic field in a region between the contacts. The electrode coil assembly, which is energized by an a.c. current in the interrupter, includes a generally annular-shaped member having a plurality of slots extending radially between a peripheral surface and an interior surface, the slots defining a substantially circumferential current path. The slots include an axially extending slot and a circumferentially extending slot that define a coil. The electrode coil member is connected in series between a terminal post and the contact of the electrode assembly. The electrode coil assembly also can include a tubular support for the contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.