Dielectric fluid comprising a monocycloparaffinic group

The dielectric fluid comprises at least 10 wt% monocycloparaffinic compounds, at most 3 wt% multicycloparaffinic compounds and less than 0.3 wt% aromatic compounds. The composition has a specific kinematic viscosity, pour point and T90 boiling point. Preferably the composition is produced by catalyt...

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Bibliographische Detailangaben
Hauptverfasser:	JOSEPH M PUDLAK, NADINE L YENNI, JOHN M ROSENBAUM
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS BASIC ELECTRIC ELEMENTS CABLES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONDUCTORS CRACKING HYDROCARBON OILS ELECTRICITY FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS INSULATORS LUBRICANTS LUBRICATING COMPOSITIONS METALLURGY MINERAL WAXES ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	The dielectric fluid comprises at least 10 wt% monocycloparaffinic compounds, at most 3 wt% multicycloparaffinic compounds and less than 0.3 wt% aromatic compounds. The composition has a specific kinematic viscosity, pour point and T90 boiling point. Preferably the composition is produced by catalytic hydroisomerisation of a highly paraffinic wax derived from a Fischer-Tropsch process. Preferably the catalyst comprises a shape selective intermediate pour size molecular sieve including a noble metal, especially Pd or Pt. The composition may also include pour point depressants, antioxidants and metal deactivators. The fluid is used as an insulating and cooling medium in transformers, regulators, circuit breakers, switchgear and electrical cables.