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Publication of PH12017550048A1publicationCriticalpatent/PH12017550048A1/en
The invention relates to a low-environmental-impact electrical insulation system comprising two essential elements: a) a gaseous medium formed by one or more highly fluorinated fluoroketones with between 4 and 12 carbons, at least one other additional dielectric gas, different from fluoroketones, with a vapour pressure at 0 oC greater than 500 mbar and less than 15000 mbar, such as fluoronitrile (CF3)2-CF-CN, and one or more carrier gases; and b) a molecular sieve that can separate water molecules from the molecules of other gases present in the gaseous medium of the system. The invention also relates to the use of the insulation system, as well as to medium- and high-voltage electrical switchgear comprising an enclosure containing low-voltage electrical components and an electrical insulation system according to the invention.
PH12017550048A2015-01-202017-07-19Electrical insulation system for medium- and high-voltage electrical switchgear
PH12017550048A1
(en)
Use of mixture comprising hydrofluoroolefin as medium-voltage arc-extinguishing and/or insulating gas and medium-voltage electrical device comprising same
Mixture of hydrofluoroolefine and fluorocetone for use as a medium for insulating and/or damping of arcs and an electric medium voltage device with gas insulating that contains it
Gaseous medium including at least one polyfluorinated oxyrane and a hydrofluoroolefin for electrical insulation and/or for extinguishing high-voltage electric arcs
Use of a gaseous medium comprising polyfluorinated oxirane and hydrofluoroolefin, as an electrical insulating gas and/or electric arc extinction in a medium voltage electrical appliance, which is e.g. a gas insulated electrical transformer