Hitachi Energy Ltd

Hitachi Energy Switzerland Ag

Abb Reasearch Ltd.

Peter Astrand

Joachim Schiessling

Tommy Larsson

Uno Gafvert

Erik Forsberg

Alejandra Ravanal

Ralf Hartings

Zoltan Repasi

Mattias Viksten

Fredrik Graas

Erik Carl Wedin

Mats Berglund

Ronnie Blomberg

Tor Laneryd

A transformer including a core, such as, for example, a single-phase core, that includes a plurality of wound limbs, primary and secondary concentric windings formed on each limb of the plurality of wound limbs, and at least one tertiary concentric winding formed on fewer than all limbs of the plurality of wound limbs.

Transformer having a tertiary winding

An electrical induction device includes a housing and a contact arrangement in the housing of the electrical induction device for electrically contacting an electrical conductor. The contact arrangement includes a conductor tube, a receiver contact which is fastened to the conductor tube and configured to receive and electrically connect with the electrical conductor, and a resilient suspension arrangement fastened to the housing and connected to an outside of the conductor tube such that the receiver contact is resiliently movable in a plane which is parallel to a cross section of the conductor tube while being substantially immovable in an axial direction of the conductor tube.

Electrical induction device with contact arrangement for electrically contacting an electrical conductor

A high voltage shielding device including a main body having an enclosing outer solid insulating wall, an outer electrode arranged on the solid insulating wall providing a first level of insulation to the outer electrode, and a first inner electrode which is uninsulated or has a coating providing a second level of insulation, which second level of insulation is lower than the first level of insulation. The first inner electrode is oriented relative the outer electrode in such a way that the first inner electrode mainly shields a component of an electric field which is perpendicular to a component of an electric field mainly shielded by the outer electrode.

High voltage shielding device and a system comprising the same

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Bälinge, Sweden

Peter Astrand