Vacuum switching apparatus with a drive unit at ground potential
US3941959A · kind A · utility
2Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1974 |
| Grant date | Mar 2, 1976 |
| Priority date | — |
| Expiry date | Apr 25, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum switching apparatus is equipped with a switching vessel which can be actuated by a drive unit at ground potential by means of a drive assembly transmitting the drive motion. The drive assembly includes a lever made of insulating material which is fulcrumed about an electrically conductive bearing pin. The lever serves as the actuating member of the switching vessel and the bearing pin is at an intermediate potential between the grounded and the high-voltage-carrying parts. The invention is suited particularly for single-pole or multi-pole vacuum switching apparatus in the medium-voltage range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.