TRANSFORMER NOISE PERFORMANCE DIAGNOSIS METHOD AND NOISE REDUCTION METHOD

A transformer noise performance diagnosis method comprises: a step of acquiring a frequency spectrum of a noise of a stacked iron core 21 included in a transformer, the stacked iron core 21 being formed by stacking electrical steel sheets; a step of, for excitation vibration calculation of the stack...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	NAMIKAWA, Misao
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MAGNETS MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING PHYSICS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TESTING TRANSFORMERS
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