Abstract: Electrical insulation system with low environmental impact for medium- and high-voltage electrical switchgear. The invention relates to an electrical insulation system comprising two fundamental elements: a) a gaseous medium formed by a mixture of i) one or more non-flammable hydrofluoroolefins with at least 4 carbon atoms and ii) one, two or three carrier gases selected from N2, O2, dry air, helium, CO2 or mixtures thereof; and b) one or more drying agents. Electrical insulation system with low environmental impact for medium- and high-voltage electrical switchgear. The invention relates to an electrical insulation system comprising two fundamental elements: a) a gaseous medium formed by a mixture of i) one or more non-flammable hydrofluoroolefins with at least 4 carbon atoms and ii) one, two or three carrier gases selected from N2, O2, dry air, helium, CO2 or mixtures thereof; and b) one or more drying agents.

Abstract: The present invention relates to an electrical insulation system having a low environmental impact comprising two fundamental elements: a) a gaseous medium formed by one or more highly fluorinated fluoroketones having between 4 and 12 carbons, at least another additional dielectric gas, other than the fluoroketones, with a vapor pressure greater than 500 mbar and less than 15000 mbar at 0° C., such as fluoronitrile (CF3)2CF—CN, for example, and one or more vector gases; and b) a molecular sieve capable of discriminating water molecules from molecules of other gases present in the gaseous medium of the system. The invention also relates to the use of the insulation system and to the medium- or high-voltage electrical switchgear comprising a complete enclosure in which there are arranged live electrical components and an electrical insulation system according to the invention.

Abstract: The present invention relates to an electrical insulation system having a low environmental impact comprising two fundamental elements: a) a gaseous medium formed by one or more highly fluorinated fluoroketones having between 4 and 12 carbons, at least another additional dielectric gas, other than the fluoroketones, with a vapor pressure greater than 500 mbar and less than 15000 mbar at 0° C., such as fluoronitrile (CF3)2CF—CN, for example, and one or more vector gases; and b) a molecular sieve capable of discriminating water molecules from molecules of other gases present in the gaseous medium of the system. The invention also relates to the use of the insulation system and to the medium- or high-voltage electrical switchgear comprising a complete enclosure in which there are arranged live electrical components and an electrical insulation system according to the invention.

Abstract: The present invention belongs to the field of dielectric fluids for electric systems, it specifically relates to a biodegradable dielectric fluid that is highly resistant to oxidation consisting of an oil or a mixture of vegetable oils with a very high oleic acid content which substantially conserve all their natural tocopherols and containing a metal deactivator, as well as to its use for insulating and cooling electrical equipment.