Current interchange for vacuum capacitor switch
US5597992A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1996 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Feb 16, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6641
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The current interchange includes a housing disposed on a high voltage circuit interrupter. The movable switch contact extends into the housing with a guide member attached to the end of the movable switch contact. The housing includes a base attached to one of the terminals of the interrupter and includes a pair of guide rods extending into the housing for guiding engagement with the guide member. A pair of electrical cables extend helically around the guide rods and have one end attached to the base and another end attached to the guide member to provide an electrical path between the movable switch contact and the terminal. The electrical cables produce an axial magnetic field which maintains the metallic vapor produced by the interruption of the circuit between the contacts to reduce the transport of ions from the gap and reduce the current chop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.