Method for classifying electrical sheet

摘要

A method for classifying electrical sheet is produced. The electrical sheet is used to produce an electrical machine and is available in the form of a strip roll wherein a magnetic flux that changes over time and that causes a shape change of the strip roll and magnetic losses is produced in the strip roll using an excitation winding fed by a feeding device, the shape change and/or the magnetic losses are measured using a measuring device and the measurement signal obtained is fed to an evaluation device, and the evaluation device categorizes the electrical sheet in regard to noise emission and/or magnetic losses using the measurement signal.

主权项

1. A method for classifying electric sheet steel which is used for producing an electrical machine and is in the form of a strip-wound coil, comprising:
producing a magnetic flux that changes over time and that causes a change in the shape of the strip-wound coil and magnetic losses in the strip-wound coil by means of an excitation winding fed by a feeding device; measuring the change in shape and/or the magnetic losses by means of a measuring device and the measurement signal obtained in the process is supplied to an evaluation device; and using the measurement signal by the evaluation device to categorize the electric sheet steel with regard to noise emission and/or magnetic losses.