Centrifugal pump unit

The invention relates to a centrifugal pump unit comprising an electric driving motor (4) and a control device (6) for controlling the speed of the driving motor (4). The control device (6) has a frequency converter (8) and is designed such that a weakened field, by means of which the speed of the d...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	AARESTRUP, JAN CAROE, RASMUSSEN, KELD FOLSACH
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a centrifugal pump unit comprising an electric driving motor (4) and a control device (6) for controlling the speed of the driving motor (4). The control device (6) has a frequency converter (8) and is designed such that a weakened field, by means of which the speed of the driving motor (4) is increased, is generated in at least one control range (S3).