Apparatus for control of electrical current by electromagnetic induction
US4163190A · kind A · utility
5Cited by
4References
4Claims
0Family size
Inventor
Key dates
| Filing date | Nov 7, 1977 |
| Grant date | Jul 31, 1979 |
| Priority date | — |
| Expiry date | Nov 7, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2029/143
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct current power apparatus for control of current amplitude during overload, short circuit, switching and similar events. During normal operating conditions, current flows substantially unaffected through the windings on a pair of commutated reactors. However, when current exceeds a predetermined value, reactor flux is varied to increase the counter electromotive force within the reactors to thereby limit the output current to a safe level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.