Patent ID: 8946552
Filing Date: 2015-02-03
Classification: H02G

Abstract:
1. A direct current cable termination apparatus for terminating a high voltage direct current cable, the apparatus comprises a current-carrying device comprising a terminal portion of the direct current cable, the cable at least comprising an electrical conductor, a circumferential electrically insulating layer located outside of the electrical conductor, and a circumferential conductive shield located outside of the insulating layer and the electrical conductor, a housing comprising a tubular outer shell with an inner periphery, the outer shell defining a longitudinal axis and being formed by an electrically insulating and polymer-containing material, the current-carrying device being adapted to extend in the axial direction of the outer shell, along at least a part of the axial extension of the current-carrying device the outer shell extends axially with a space between its inner periphery and the current-carrying device, the housing is adapted to separate the space from an atmosphere out-side the outer shell, characterized in that the apparatus comprises a partition which separates the space into a first chamber and a second chamber, in that the first chamber is filled with an electrically insulating first fluid and the second chamber is filled with an electrically insulating second fluid other than the first fluid, in that the first fluid comprises an electrically insulating gas, and in that the second fluid comprises a liquid filler or an electrically insulating gas, in that the conductive shield terminates inside the second chamber, and in that at least one electric field control member is located within the second chamber in the proximity of the termination of the conductive shield.