Star-delta-switch
US4503412A · kind A · utility
3Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1983 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Mar 7, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H83/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switching mechanism in a star-delta-switch with a rotatable and axially displaceable switch-shaft prevents rotation of the switch-shaft from the off- to the delta-connection position in the direction of rotation from the delta-connection to the off-position in one of the axial positions while axial displacement of the switch-shaft to another axial position enables the switch-shaft to be rotated from the off- to the delta-connection, rotation of the switch-shaft in the other axial position causing the switching mechanism to reset to the one axial position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.