CENTRIFUGAL PUMP UNIT

摘要

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).