http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0813283-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d75c50bfa83ca4601faee2b97908a39 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01H83-144 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02H3-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F38-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F38-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01H83-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02H3-33 |
| filingDate | 1997-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31e14b8e04f8bcf6ae848448587ba1f1 |
| publicationDate | 1997-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0813283-A1 |
| titleOfInvention | Differential protection device having immunity against nuisance tripping |
| abstract | The present invention relates to a differential protection device for an electrical installation immune to nuisance tripping.n n n This device comprises, in a manner known per se, a differential transformer T, primary windings, E1, E2, E3, E4, a secondary winding ES, a trip relay (R) of a current breaking device (8) connected to the aforementioned secondary winding Es by a secondary connection circuit. This secondary circuit includes a means for clipping the secondary signal, for example a diode D, connected to the relay R so as to avoid an untimely tripping in the event of a spurious voltage peak while ensuring tripping for a fault current. This device is characterized in that the transformer T comprises at least two parts A, B, having different magnetic characteristics, namely a first part A consisting of a material with high permeability supplying the above-mentioned relay R with sufficient energy to trigger on low homopolar current intensities, and a second part B constituted by a material with low permeability supplying the relay R with sufficient energy to trip on strong homopolar currents. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2481666-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1933342-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009100470-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101965620-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2909800-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101965620-A |
| priorityDate | 1996-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.