Abstract:
The present invention relates to an apparatus for the generation, the distribution and/or the usage of electrical energy. The apparatus comprises a housing enclosing an insulating space and an electrically conductive part arranged in the insulating space, said insulating space containing a dielectric insulation medium,at least a portion of which being in the form of an insulation gas comprising an organofluorine compound. According to the invention, at least some of the components of the apparatus that are directly exposed to the insulation gas are made of a material which remains unaltered during exposure to the insulation gas for a period of more than 1 year at operational conditions and/or have a surface, at least a portion of which is devoid of any nucleophilic group reactive towards the organofluorine compound and/or reactive towards any degradation product thereof at operational conditions.
Abstract:
The present invention relates to an electrical insulator (2, 2') for an electrical apparatus, said insulator (2, 2') comprising a body (4, 4') containing an electrical insulating solid material (6) and non-solid inclusions (8) dispersed within the body (4, 4'). According to the invention, at least a portion of the inclusions (8) comprise at least one organofluorine compound having a lower Global Warming Potential than SF 6 .
Abstract:
The present invention relates to a process for providing a contamination-reducing(5)component to an electrical apparatus(1), said electrical apparatus (1) comprising a housing (2) enclosing an insulating space (3) and an electrical component (4) arranged in the insulating space(3), said insulating space (3) comprising an insulation medium which comprises or consists of carbon dioxide. The process comprises the steps of presaturating the contamination reducing component (5) with carbon dioxide before placing it inside the electrical apparatus (1).
Abstract:
A method and device for providing an insulation fluid (10) and for filling this insulation fluid (10) into medium-voltage or high-voltage switchgear (1) is provided. The method comprises method elements of mixing at least two fluid components (A,B) for yielding a first amount (M1) of insulation fluid (10), monitoring a first mixing ratio (R1) of this first amount (M1), and monitoring a second mixing ratio (R2) of a second amount (M2) of the insulation fluid (10) that is already in the electrical apparatus (1). The first mixing ratio (R1) is controlled such that no condensation of a fluid component (A,B) takes place. Furthermore, the first mixing ratio (R1) and the first amount (M1) of the insulation fluid are controlled using the second mixing ratio (R2), the second amount (M2), a desired target mixing ratio (R), and a target amount (M) of the insulation fluid.