http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2001313-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e6c00733ad2ca4f993f86ee14e6b0b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13e54c357d4cc4c896276639d3a09a03 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04D15-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F04D13-10 |
| filingDate | 1990-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1993-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cab1f34b5334ecae54f30f98552113f1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_502a4e1207314b9f3672aadca5646193 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ac221dae2beb8fc3bb05fd9d19f8400 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64aa1f3eeabc60824de496f47b494a2c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78c373816efddf9470def4a6aff4ec6b |
| publicationDate | 1993-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2001313-C1 |
| titleOfInvention | Method for controlling well pump submerged motor |
| abstract | SUMMARY OF THE INVENTION: The thyristor frequency converter and the output voltage of the supply current are varied. The pressure at the pump outlet is measured and the predetermined law of its change is maintained in the start and stop modes. Frequency and output voltage changes are performed in steps. In the start-up mode of the electric motor, a step-by-step change in the start-up and voltage is carried out during an increase in the rotor speed from the initial value to half the nominal frequency by quasi-frequency control of the thyristor converter. The first time derivative of the pump output pressure is kept constant over time. The rotor speed increases to the nominal value. by phase control of the converter. At the same time, the second derivative of the pressure at the pump output is kept constant in time. In the stop mode, these operations are performed in reverse sequence. The duration of the electric motor operation in the start mode is set in accordance with the given dependence. 5 ill. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9749920-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6135732-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1093608-C http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2330879-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2330879-A |
| priorityDate | 1990-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.