Circuit arrangement having an electric device with a magnetizable magnetic core
AssigneeSiemens Energy Global GmbH & Co. KG
InventorPeter Hamberger
Life of this patent
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Abstract
A circuit arrangement contains an electric device having a magnetizable magnetic core and at least one winding which is configured for generating a magnetic flux in the magnetic core, and an auxiliary inductor which is electrically connected to the winding of the electric device and is configured for limiting an inrush current during switching-on of the electric device.
Claims10
A circuit configuration, comprising:
- an electric device having a magnetizable magnetic core and at least one winding configured for generating a magnetic flux in said magnetizable magnetic core;
- and
- an auxiliary inductor electrically connected to said at least one winding of said electric device and configured for limiting an inrush current during switching-on of said electric device.
A method for operating a circuit configuration having an electric device with a magnetizable magnetic core and at least one winding configured for generating a magnetic flux in the magnetizable magnetic core, an auxiliary inductor electrically connected to the at least one winding of the electric device, and a compensating device configured for suppressing a DC magnetic flux component in the magnetizable magnetic core, which comprises the steps of:
- conducting an inrush current of the electric device through the auxiliary inductor during a switching-on of the electric device;
- and
- suppressing a DC magnetic flux component in the magnetizable magnetic core using the compensating device after the switching-on of the electric device.
Dependencies are inferred from the claim text.