Patents Assigned to ABB Technologies Ltd.
  • Patent number: 8159812
    Abstract: A capacitor element for a power capacitor. The capacitor element includes a plurality of series-connected cylindrical sub-elements. Each sub-element includes at least two strips of dielectric material wound in a number of turns. A layer of electrically conductive material is disposed between the turns of the winding. The sub-elements are disposed one outside the other as seen in a direction transversely to the plane of the strip. A strip in an outermost sub-element is longer than the strip in each inwardly lying sub-element. A power capacitor includes a plurality of the capacitor elements, and a capacitor battery includes a plurality of the power capacitors. A method of manufacturing the inventive capacitor element and the use of the inventive power capacitor.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: April 17, 2012
    Assignee: ABB Technologies Ltd.
    Inventor: Esbjörn Eriksson