http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2436800-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R27-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R31-083 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R31-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02H3-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R31-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R31-02 |
| filingDate | 2001-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f418d08dc5d4af04a49a196b3605619d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a13dfb07de1af4a8c857ce6d9dfc45d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd86a186683f0433c212f1c8526d139d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7c9c82d2da7911be1178fb55d4b1352 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c27eeaa02f7ad89a1bb6d737cedba74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b1efc359585730fe194d94e12f80a6e1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37382a8fc820f2d8cf6160e6081cb989 |
| publicationDate | 2002-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2436800-A1 |
| titleOfInvention | Apparatus and method for detecting and calculating ground fault resistance |
| abstract | The field ground fault detector (100, 200, 500) of the present invention detects a ground fault that occurs in the field circuit and in any associate d circuits galvanically connected to the field. The field ground fault detecto r discerns the ground resistance so that it can be monitored to detect gradual degradation of the ground resistance. The detector estimates the resistance of the ground fault and the location of the ground fault. The detector is able to estimate the location of the ground fault during system operation and during periods of non-operation. The invention utilizes a low frequency square wave oscillator (104) to permit measurement of the ground fault resistance when field voltage is not applied, to insure that there are no blind spots when t he field is energized, and to provide a method for estimating the ground fault resistance. The field ground detector can differentiate between ground fault s that occur on the AC side form those on the DC side of the Thyristor Bridge. |
| priorityDate | 2000-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.