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AssigneeABB Research Ltd.
InventorsVincent TILLIETTE, Jens Rocks, Stefan Gisy, Roger Hedlund, Gerd Chalikia, Ruedi Meili
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A high-voltage bushing has a conductor and a core surrounding the conductor, wherein the core comprises a sheet-like spacer, which spacer is impregnated with an electrically insulating matrix material. The spacer is wound in spiral form around an axis, the axis being defined through the shape of the conductor. Thus, a multitude of neighbouring layers is formed. The core further comprises equalization elements in appropriate radial distances to the axis. The equalization elements comprise electrically conductive layers, which layers have openings, through which openings the matrix material can penetrate, and in that the equalization elements are applied to the core separately from the spacer. The electrically conductive layers can be net-shaped, grid-shaped, meshed or perforated. The openings are fillable with the matrix material, e.g., a particle-filled resin can be used.
Bushing with a conductor and a core surrounding the conductor, the core comprising a sheet-like spacer, which spacer is impregnated with an electrically insulating matrix material and which spacer is wound in spiral form around an axis, thus forming a multitude of neighbouring layers, the axis being defined through the shape of the conductor,
A method for the production of a bushing with a conductor and a core surrounding the conductor, the method comprising:
Dependencies are inferred from the claim text.