Hitachi Energy Switzerland Ag

Hitachi Energy Ltd

Abb Schweiz Ag

Abb Power Grids Switzerland Ag

Saskia Scheel

Thomas Alfred Paul

Toufann Chaudhuri

Branimir Radisavljevic

Charles Doiron

Nitesh Ranjan

Emmanuel Logakis

Anna Di-Gianni

Lejun Qi

Yann Cuenin

Biswajit Singh

Chau-Hon Ho

Felix Bandalo

Daniel Over

Valeria Teppati

Richard-changyu Zhang

Philipp Simka

Spiros Tzavalas

The present invention relates to a dielectric-insulation or arc-extinction fluid for an apparatus for the generation, the transmission, the distribution and/or the usage of electrical energy, the fluid being a mixture comprising a fluoroolefin and oxygen. According the fluoroolefin is a monohydrofluoroolefin containing from 4 to 5 carbon atoms, the hydrogen atom being bound to a carbon atom of the double bond or directly adjacent to the double bond.

Dielectric-insulation or arc-extinction fluid

A wet capacitor is provided, and the use of an insulation fluid composition in such a capacitor. The capacitor includes a package of a metal foil and a polymeric insulating film, or of a metallized polymeric film, wherein the insulation composition includes a synthetic or natural aromatic oil and a polymer. The insulation composition is configured to undergo a thermo-reversible oil-to-gel transition at a predefined gel-point temperature. Further, methods of producing such wet capacitors are provided, optionally including additional filling materials, and methods of sealing leaks in such capacitors.

Capacitor with insulation composition showing thermo-reversible oil-to-gel-transition

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

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Lenzburg, Switzerland

Saskia Scheel