METHOD AND APPARATUS FOR DEMAGNETIZING TRANSFORMER CORES CLOSED-LOOP

METHOD AND APPARATUS FOR DEMAGNETIZING TRANSFORMER CORES CLOSED-LOOP

Automated degaussing methods and apparatus are presented for degaussing a magnetic core in close loop fashion, in which a plurality of pulses are applied to a compensation coil magnetically coupled with the core with duration or energy being decreased in succeeding pulse cycles according to a discre...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAUG, Gebhard, IVANOV, Mikhail Valeryevich, VAN VROONHOVEN, Caspar Petrus Laurentius, UDAYASHANKAR, Sudarshan
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TESTING
TRANSFORMERS
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Beschreibung
Zusammenfassung:Automated degaussing methods and apparatus are presented for degaussing a magnetic core in close loop fashion, in which a plurality of pulses are applied to a compensation coil magnetically coupled with the core with duration or energy being decreased in succeeding pulse cycles according to a discrete feedback algorithm, and with individual pulse polarities being set according to core magnetization polarity measured subsequent to an immediately preceding pulse.