Abb Technology Ag

Sintef Energiforskning As

Magne Runde

Thor Endre

Tom-Rune Bjortuft

Paal Kristian Skryten

Pal Kristian Skryten

An electric power distribution arrangement having an electric conductor for carrying a high voltage, a first pair of bodies provided on opposite sides of the conductor as seen in a first direction cross-wise to a longitudinal axis of the conductor, and a second pair of bodies provided on opposite sides of the conductor as seen in a second direction cross-wise to the longitudinal axis. The bodies of the first and second pair of bodies are arranged to be electrically disconnected from the conductor, and the spacing between the bodies of the first pair is larger than the spacing between the bodies of the second pair. At least one of the bodies of at least one of the first and second pair comprises a second current conductor, and at least one of the bodies of at least one of the first and second pair comprises a wall element of an encapsulation inside which the conductor is arranged. In a region in which the conductor is surrounded by the first pair and second pair, the conductor has a substantially oval or substantially elliptical shaped outer periphery, and the cross section of the conductor has a larger dimension in the first direction than in the second direction.

Electric power distribution arrangement and a switchgear provided therewith

Apparatus for induction heating of billet-shaped blanks ( ) of electrically well conductive and non-magnetic metal, in particular aluminum or copper, comprising a winding ( ) adapted to surround the blank completely or partially, to be supplied with electric alternating current ( ) and to be cooled ( ) at least during the heating of the blank ( ). The winding has turns comprising superconducting material and is enclosed by a thermally insulating chamber ( ). The cooling ( ) is adapted to maintain the winding at a temperature in the range 30-90&deg; K, and the frequency of the alternating current ( ) is adapted to be in the range of common mains frequencies.

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Trondheim, Norway

Magne Runde