CHEMICAL METHOD FOR REMOVING COPPER SULPHIDE (CU2S) DEPOSITED ONTO CELLULOSE -BASED MATERIAL IN TRANSFORMER USING A COPPER COMPLEXANT

A method for removing copper sulphide (Cu2S) deposited onto electrically insulating materials of components in an electrical apparatus,such as a transformer or a bushing, wherein normally present electrically insulating oil has been substantially removed, and on other surfaces of such apparatus, com...

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Bibliographische Detailangaben
Hauptverfasser:	PITOIS, CLAIRE, DAHLUND, MATS, ROGEAU, ANTOINE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY FERROUS OR NON-FERROUS ALLOYS INDUCTANCES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INORGANIC CHEMISTRY MAGNETS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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