Abb Technology Ag

Abb Schweiz Ag

Abb Research Ltd.

Abb Technology Ltd

Abb Power Grids Switzerland Ag

Hitachi Energy Ltd

Navid Mahdizadeh

Thomas Alfred Paul

Javier Mantilla

Stephan Grob

Axel Kramer

Olaf Hunger

Per Skarby

Nicola Gariboldi

Patrick Stoller

Oliver Cossalter

Nitesh Ranjan

Max-Steffen Claessens

Denis Tehlar

Timo Kehr

Daniel Ohlsson

Judith Kessler

Jan Svensson

Staffan Norrga

Frans Dijkhuizen

Xiangyang Ye

Mathias-Dominic Buergler

Martin Kriegel

Mats Hyttinen

Göran Eriksson

Jakub Korbel

Sami Kotilainen

Bernhard Von Allmen

Jadran Kostovic

Anna Di-Gianni

Markus Bujotzek

Juerg Nufer

Mathias Ingold

Francia Galindo-Lozano

Uwe Riechert

Peter Terwiesch

Ingold Mathias

Anna Di Gianni

Jurg Nufer

Jürg Nufer

Bernhard vonAllmen

Michael Boesch

Jan R Svensson

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 for generation, transmission, distribution and/or usage of electrical energy, comprising a housing enclosing an electrical apparatus interior space, at least a portion of which forms at least one insulation space having an electrical component and containing a surrounding insulation medium comprising an amount of carbon dioxide m. The insulation space is formed by at least one insulation space compartment, in which an adsorber for reducing or eliminating the amount of water mand optionally further contaminants from the insulation medium is arranged. The amount of adsorber marranged in the at least one insulation space compartment complies with the formulae (I) and (II). 

Water and contamination absorber for C02 insulated electrical apparatus for the generation, transmission, distribution and/or usage of electrical energy

A method for deriving at least one operating parameter of a fluid-insulated electrical apparatus, in particular of gas-insulated switchgear. The operating parameter is dependent on a dielectric breakdown strength of an insulation fluid of the electrical apparatus. The insulation fluid includes at least three components that are assigned to at least a first and a second component group such that at least one component group comprises at least two components. The component groups differ in their weighted average values of the molecular masses of the components in the respective component groups. At least one quantity which is indicative of the concentration of the first component group and of the concentration of the second component group is determined from the insulation fluid, e.g. by measuring one or more measurement variables with one or more sensors. The operating parameter is then derived using the at least one quantity.

Method and device for determining an operating parameter of a fluid insulated electrical apparatus

An apparatus for the generation, the distribution or the usage of electrical energy, the apparatus including a housing enclosing an insulating space and an electrical component arranged in the insulating space. The insulating space contains a dielectric insulation gas including an organofluorine compound A. The apparatus further includes a molecular sieve arranged such as to come into contact with the insulation gas. The molecular sieve has an average pore size y greater than the molecular size of at least one decomposition product of the organofluorine compound A generated during operation of the apparatus. The adsorption capability of the molecular sieve for organofluorine compound A is lower than for the at least one decomposition product. The apparatus further includes at least one desiccant arranged such as to come into contact with the insulation gas.

Apparatus containing a dielectric insulation gas comprising an organofluorine compound

A dielectric insulation medium including sulphur hexafluoride (SF6) and/or tetrafluoro methane (CF4), in a mixture with at least one further component being an at least partially fluorinated fluoroketone.

Dielectric insulation medium

A converter building including at least one room having a solid room wall enclosing an interior space and an electrical active part contained in the interior space, the room wall having at least one opening, which is designed such that it allows a human to enter the interior space. The opening is sealable, the room wall encloses the interior space in a gas-tight manner when the opening is sealed, and the interior space contains a dielectric insulation medium including a dielectric insulation component other than air.

Converter building

A dielectric insulation medium including a fluoroketone containing 5 carbon atoms, in a mixture with a dielectric insulation gas component different from the fluoroketone, in particular air or an air component, the dielectric insulation medium, in particular the dielectric insulation gas, having a non-linearly increased dielectric strength that is larger than a sum of dielectric strengths of the gas components of the dielectric insulation medium.

A simplified construction of a gas-insulated high-power circuit breaker with a saving of components is achieved by at least one hole and at least one leaf spring, which is fastened on one side and is elastically bendable in dependence upon the pressure of the insulating gas in the compression volume, being formed in a valve plate of the valve. The bendable spring closes off the hole when the circuit breaker closes and opens it when the circuit breaker opens as soon as the pressure of the compressed insulating gas in the compression volume exceeds the value of the gas pressure in the low-pressure chamber by at least two bar.

Gas-insulated high-voltage power circuit breaker

A dielectric insulation medium including a hydrofluoro monoether, the hydrofluoro monoether containing at least three carbon atoms. The insulation medium according has high insulation capabilities, in particular a high dielectric strength, and at the same time a low GWP. The invention further includes an insulation medium which is chemically and thermally stable also at temperatures above 140&#xb0; C., which is non-toxic or has a low toxicity level, and which in addition is non-corrosive and non-explosive.

A self-blowout circuit breaker is disclosed which includes contacts for connecting or disconnecting a circuit, a heating volume, a compression volume and an exhaust volume. The compression volume can be connected to the heating volume by at least one first valve, which heating volume is in turn connected to an arc zone. Upon the disconnection of the circuit, while a first arcing contact is being disconnected from an associated second arcing contact, an arc is produced between the two arcing contacts in the arc zone. The compression volume is separated from the exhaust volume by a combined filling and overpressure valve which is formed as at least one plate, and has at least one tab which is formed in the plate.

Self-blowout circuit breaker having a filling and overpressure valve

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Baden, Switzerland

Navid Mahdizadeh