Condenser core with grounded conductive foils in a capacitive layer

A condenser core configured for surrounding an electrical conductor, the condenser core comprising an insulation material and a plurality of electrically conducting capacitive layers for modifying electrical fields formed by a current flowing in the electrical conductor;

• wherein at least one of the electrically conducting capacitive layers comprises a first foil and a second foil, wherein the first and second foils are overlapping by an overlap at a first edge of the first foil and a second edge of the second foil,
• wherein each of the first and second foils of an outermost capacitive layer is connected with a respective grounding arrangement for grounding the foils,
• wherein the first foil and the second foil are arranged to provide that respective longitudinal edges of the foils have a length corresponding to the first and second foils,
• wherein the first and second foils are of equal length,
• wherein the first and second foils are arranged such that the overlap is at respective longitudinal edges of the foils, wherein the first and second foils are partially electrically connected based on an electrically insulating fluid that is pressed between the first foil and the second foil, and
• wherein a length of a sheet formed by the overlapping first and second foils of the capacitive layer is greater than the length of the first and second foils.