Switching apparatus protected against short circuit currents
US4733031A · kind A · utility
1Cited by
2References
13Claims
0Family size
Inventors
Key dates
| Filing date | May 6, 1986 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | May 6, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2089/065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A contactor apparatus is provided protected against short circuit currents, comprising for each phase between input and output terminals a contactor switch and a protective switch with automatic opening, a transfer electrode being placed close to the contacts of this second switch for shunting into a parallel circuit a considerable fraction of the fault currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.