Load-break switch having a vacuum interrupter and method of operation
US5168139A · kind A · utility
11Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Mar 22, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/66246
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A load-break switch includes a vacuum interrupter and two blade-type switches. The vacuum interrupter comprises an insulating, tubular housing with two conductive end caps and two coaxially opposing contact studs. The contact surfaces of the contact studs are configured inside the housing. One of the blade-type switches is configured parallel to the vacuum interrupter and the other switch is arranged in series with this parallel connection. The contact studs are formed from a chromium-nickel steel. The end faces of these contact studs form the contact surfaces of the vacuum interrupter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.