Protection system for electric circuits
US5323288A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1992 |
| Grant date | Jun 21, 1994 |
| Priority date | — |
| Expiry date | Apr 9, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2083/203
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention concerns a system for the protection of electric circuits (60, 61, 62) which permits an analysis in real time of the evolution of electric currents circulating in such electric circuits, such analysis having as its purpose not only protection but also prevention. Such protection system comprises at least one circuit breaker (64, 66) including a first coil (70, 71) associated with a magnetic circuit and bearing the main current, as well as a second coil (74, 75) likewise associated with the magnetic circuit. Such second coil carries an induced current representative of the main electric current. Such induced current is processed by an electronic circuit (80) which supplies a processed signal representative of at least one characteristic of the main current, said characteristic being used for prevention in the electric circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.