Abstract: Measuring arrangement for detecting a magnetic unidirectional flux in the core of a transformer, wherein a sensor, formed from a ferromagnetic sensor core which is surrounded by a sensor coil, is arranged in a section of a core limb in a cooking channel, where the section is predefined by the width of the winding, or is arranged in an annular space, formed from an outer peripheral surface of the core limb and an inner peripheral surface of an associated transformer winding, such that a magnetic partial flux is diverted by the core limb and guided over at least one non-ferromagnetic gap.

Abstract: An arrangement for reducing the radiation of noise from liquid-cooled transformers or chokes includes a tank having stiffeners arranged outside on the side walls of the tank, where a region situated between each stiffener is covered by a sandwich panel that is fastened to each stiffener, where each sandwich panel has a metallic wall that hermetically closes off a cavity that is filled with a composition composed of a polymer material and a filler material, where the composition has a specific weight of >2 grams per cubic centimeter.

Abstract: An arrangement for reducing the radiation of noise from liquid-cooled transformers or chokes includes a tank having stiffeners arranged outside on the side walls of the tank, where a region situated between each stiffener is covered by a sandwich panel that is fastened to each stiffener, where each sandwich panel has a metallic wall that hermetically closes off a cavity that is filled with a composition composed of a polymer material and a filler material, where the composition has a specific weight of >2 grams per cubic centimeter.

Abstract: Measuring arrangement for detecting a magnetic unidirectional flux in the core of a transformer, wherein a sensor, formed from a ferromagnetic sensor core which is surrounded by a sensor coil, is arranged in a section of a core limb in a cooking channel, where the section is predefined by the width of the winding, or is arranged in an annular space, formed from an outer peripheral surface of the core limb and an inner peripheral surface of an associated transformer winding, such that a magnetic partial flux is diverted by the core limb and guided over at least one non-ferromagnetic gap.

Abstract: 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.

Abstract: 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 by means of an excitation winding fed by a feeding device, the shape change and/or the magnetic losses are measured by means of 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.

Abstract: A winding arrangement for a transformer or for a reactor is provided. The winding arrangement includes an annular winding cover part disposed on the front face of a winding, wherein a side surface of the winding cover part overlaps a front surface of the winding, wherein the annular winding cover part is designed to be magnetically conductive at least in a partial area and comprises a convex side surface facing away from the winding.