Abb Schweiz Ag

Abb Research Ltd.

Hitachi Energy Switzerland Ag

Abb Power Grids Switzerland Ag

Abb Technology Ag

Anna Di-Gianni

Thomas Alfred Paul

Denis Tehlar

Stephan Grob

Jacobus Lodevicus Martinus Van Mechelen

Navid Mahdizadeh

Nitesh Ranjan

Oliver Cossalter

Maik Hyrenbach

Mathias-Dominic Buergler

Patrick Meier

Rico Gasparini

Branimir Radisavljevic

Javier Mantilla Florez

Barbara Panella

Saskia Scheel

Malena Bergsblom

Robin Gremaud

Charles Doiron

Bernhard vonAllmen

Pia Aschwanden

Miklos Lenner

Mathias BÜRGLER

The present invention relates to the use of a linear octafluorobutene as a dielectric compound in an environmentally safe dielectric-insulation or arc-extinction fluid for an apparatus for the generation, the transmission, the distribution and/or the usage of electrical energy.

Use of a linear octafluorobutene as a dielectric compound in an environmentally safe dielectric-insulation or arc-extinction fluid

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.

Apparatus for the generation, the distribution and/or the usage of electrical energy and component for such an apparatus

The present invention relates to an electrical apparatus having an insulating space which contains a dielectric insulation fluid comprising an organofluorine compound. At least one solid component of the apparatus that is directly exposed to the insulation fluid contains a basic body made of a first material and a protective layer made of a second material different from the first material, the protective layer being directly or indirectly applied on the basic body and having a thickness of at least 50 &#x3bc;m. The organofluorine compound is selected from the group consisting of: fluoroethers, fluoroketones, fluoroolefins, fluoronitriles, and mixtures thereof, and the first material comprises or consists of a material selected from the group consisting of: a polymeric material, a ceramic, a composite material, and mixtures or combinations thereof.

Apparatus for the generation, distribution and/or usage of electrical energy and component for such an apparatus

A device or component thereof is provided for generation, transmission, distribution and/or use of electrical energy. In at least one insulation space formed within the device, there is a current-conducting component. The insulation space includes a dielectric insulation medium that surrounds the current-conducting component. This insulation medium includes a) at least one organofluorine compound selected from the group consisting of fluoroketones, fluoronitriles, and mixtures thereof and b) a carrier gas comprising at least one component selected from the group consisting of air, an air component, CO, or a mixture of these components. The device includes at least one gas seal for sealing of the at least one insulation space from a further space. The gas seal includes butyl rubber as seal material.

Device for the generation, transmission, distribution and/or use of electrical energy or component of such a device and gas seal for such a device or component

A sensor assembly senses hydrogen and moisture content of insulation liquid of a liquid-filled electrical equipment. The sensor assembly includes a radiation source for emitting electromagnetic radiation, a water detection section for receiving a water-containing component of the liquid when the assembly is in operational connection with the electrical equipment and for being illuminated by electromagnetic radiation from the radiation source, a first detector for detecting electromagnetic radiation from the water detection section at a wavelength indicative of an amount of water present at the water detection section, a hydrogen detection section for receiving a hydrogen-containing component of the liquid when the assembly is in operational connection with the electrical equipment and for being illuminated by electromagnetic radiation from the radiation source, and a second detector for detecting electromagnetic radiation from the hydrogen detection section at a wavelength indicative of an amount of hydrogen present at the hydrogen detection section.

Sensor assembly and method for determining the hydrogen and moisture content of transformer oil

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Dättwil, Switzerland

Anna Di-Gianni