MOTOR WINDING CONTAMINATION DETECTOR AND DETECTION
A method and apparatus for detecting motor contamination utilizes zero- sequence currents in a sensing coil to detect contamination. The detector includes a current transformer comprised of a magnetic core and a sensing coil wound about the core. A processor processes a sub-trip level current from t...
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| Main Authors | , |
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| Format | Patent |
| Language | English French |
| Published |
01.04.2008
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| Subjects | |
| Online Access | Get full text |
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| Abstract | A method and apparatus for detecting motor contamination utilizes zero- sequence currents in a sensing coil to detect contamination. The detector includes a current transformer comprised of a magnetic core and a sensing coil wound about the core. A processor processes a sub-trip level current from the sensing coil to detect contamination. Three contamination detection methods, which may be used separately or in desired combination, are based on current trends, current leakage, and current clustering. An alarm is triggered when predetermined alarm criteria have been met. |
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| AbstractList | A method and apparatus for detecting motor contamination utilizes zero- sequence currents in a sensing coil to detect contamination. The detector includes a current transformer comprised of a magnetic core and a sensing coil wound about the core. A processor processes a sub-trip level current from the sensing coil to detect contamination. Three contamination detection methods, which may be used separately or in desired combination, are based on current trends, current leakage, and current clustering. An alarm is triggered when predetermined alarm criteria have been met. |
| Author | REHDER, ROBERT HENRY KLIMAN, GERALD BURT |
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| DocumentTitleAlternate | DETECTEUR DE CONTAMINATION D'ENROULEMENT DU MOTEUR ET DETECTION |
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| Notes | Application Number: CA19992313180 |
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| RelatedCompanies | GENERAL ELECTRIC COMPANY |
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| Snippet | A method and apparatus for detecting motor contamination utilizes zero- sequence currents in a sensing coil to detect contamination. The detector includes a... |
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| SubjectTerms | CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| Title | MOTOR WINDING CONTAMINATION DETECTOR AND DETECTION |
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