Siemens Aktiengesellschaft

Aeg Power Solutions Gmbh

Stefan Kempen

Steffen Lang

Peter Gröppel

Mario Brockschmidt

Guido Schmidt

Friedhelm Pohlmann

Christian Staubach

Waldemar Kowalski

Dieter Brandt

Friedhelm Pholmann

Norbert Blacha

Andreas Becker

Dora Schattauer

Bernd Niehaus

Tycho Weissgerber

Hartmut Barnhusen

Ralf Nottelmann

An arrangement for receiving electrical energy from a power grid and for discharging electrical energy to the power grid comprises: a converter to convert from AC to DC and vice versa and a control device. The converter includes: a power unit connected on one side to a DC I/O and on another side to an AC I/O; an energy storage device; an energy-converter; and a changeover mechanism to which the energy storage device or the energy-converter is connected via the DC I/O. The control device controls the changeover mechanism such that a neutral state is a state of charge of the energy storage device between 50% and 100%; and at or above the neutral state, the changeover mechanism connects the DC I/O of the converter to the energy-converter at a network frequency higher than a nominal network frequency plus a predetermined, non-zero amount.

Arrangement comprising an energy storage device for receiving electrical energy from an electrical network and discharing electrical energy to the electrical network

The corona shield can be applied in electric machines in a faster manner by using radiation-cured materials.

Method for producing a corona shield, fast-curing corona shield system, and electric machine

An external corona shielding for a conductor bar of an electric machine, a main insulating layer sheath on the conductor bar. The shielding has a first ply, which sheaths the main insulating layer, and a second ply, which sheaths the first ply. Each ply is a conductive, impregnatable layer with a sliding layer, wherein the sliding layers of the two plies () face one another. Each sliding layer has at least one cutout, wherein the two conductive layers are connected to one another through these cutouts with the aid of a permanently elastic, electrically conductive connection.

External corona shielding for an electrical machine

An electrical conduction device is provided having an electrically conductive conduction element and an electrically insulating sheathing surrounding said conduction element at least in regions. An overhang corona shielding in the form of a coating composed of a material having a resistivity that increases towards an end of the sheathing is arranged on the sheathing at an outer side. An overhang corona shielding arrangement and a method for producing an overhang corona shielding are also provided.

Electrical conduction device, overhang corona shielding arrangement and method for producing an overhang corona shielding

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Arnsberg, Germany

Stefan Kempen