VERFAHREN UND VORRICHTUNG ZUR DETEKTION DER VERSCHMUTZUNG VON MOTORWICKLUNGEN
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 th...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | German |
| Published |
15.12.2005
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| Edition | 7 |
| 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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| Notes | Application Number: AT19990970165T |
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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 | VERFAHREN UND VORRICHTUNG ZUR DETEKTION DER VERSCHMUTZUNG VON MOTORWICKLUNGEN |
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