BE504293A - - Google Patents

Info

Publication number
BE504293A
BE504293A BE504293DA BE504293A BE 504293 A BE504293 A BE 504293A BE 504293D A BE504293D A BE 504293DA BE 504293 A BE504293 A BE 504293A
Authority
BE
Belgium
Prior art keywords
cables
insulating
oils
insulating oils
solvent
Prior art date
Application number
Other languages
French (fr)
Publication of BE504293A publication Critical patent/BE504293A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M3/00Liquid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single liquid substances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/20Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • H01B3/22Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/06Well-defined aromatic compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/14Electric or magnetic purposes
    • C10N2040/16Dielectric; Insulating oil or insulators
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/14Electric or magnetic purposes
    • C10N2040/17Electric or magnetic purposes for electric contacts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Insulating Materials (AREA)
  • Lubricants (AREA)

Description

       

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



  PROCEDE D'OBTENTION DB'fTIIES ISOLANTES POUR CABLES. 



  Dans la fabrication de câbles à hautes et à basses tensions  il 
 EMI1.2 
 est connu d9utiliser des huiles isolantes pour 19.mpégatior- ds L'isolement en papier séché. Pour-des câbles de masse et des câblea. de-pression, on a besoin d'huiles isolantes visqueuses et pour des câbles à¯l-,9huile-d9huiles isolantes fluides <-Qn- impose aux propriétés électriques- de ces- huiles iso- lantes telles que le facteur de perte diélectrique.:

   la conductibilité., la résistance aux décharges électriques etc., des exigences détsuée qui-, dépendent du genre de câble et des sollicitations auxquelles est soumis le 
 EMI1.3 
 diélectrique du câble terminé., Lors des examenS- -de réception- du câble- fixais on attache une importance particulière par exemple à   des-   faibles valeurs du 
 EMI1.4 
 facteur de perte de J.isolè1ilènt huile-papier du câble. Les spécifications du "Verband Deutscher- Elektrotechniker (Association des Ingénieurs-- Electriciens allemands), (?DE) ainsi que les spécifications d'autres pays par exemple en Hollande.9 en Suiesèj; en Grande-bretagne  etc. donnent des valeurs minima précises devant être   observées   dans tous les cas. 



   Quand on-utilise les   huiles   isolantes pour câbles usuelles dis-   ponibles   sur le marché et   provenant   d'huiles de base auxquelles on   mélange.   des résines, on ne peut que   difficilement   maintenir les valeurs   minima   mentionnées   dit   facteur de   perte,   surtout, en ce qui   concerne   les   spécifica-   
 EMI1.5 
 tions valables. à..JJ' étranger 0   L'idée   de   1.9 invention'   a pour but de mettre au point des huiles isolantes pour câbles qui présentent des propriétés électriques notablement 
 EMI1.6 
 meilleures que juxqu'à présent  particulièrement en- ce qui concerne le fac- teur de perte diélectrique. 
 EMI1.7 
 



  L'invention est basée sur la soastata-tion surprenante que les produits obtenus lors de 1'aH'lation d9hydrocarbures aromatiquza- e ayant un poids   moléculaire   supérieur à 500.. conviennent 'particulièrement bien  après un traitement appropriée comme produits de départ pour des huiles isolantes 

 <Desc/Clms Page number 2> 

 pour   câbles),)   de grande valeur et ayant des propriétés électriques qui n'ont pas encore été atteintes jusqu'à présente 
On purifie ces substances qui peuvent être obtenues par des pro- 
 EMI2.1 
 cédés connus  au moyen d-agents d9adsorptior9 comme par exemple des terres de blanchiments des*els de silices et des oxydes d9alumînîum,, dont la te- neur en eau ne peut dépasser une valeur maximum,, éventuellement en présence d'un solvant,

   "a des températures normales au7élevées  et on peut dèfLlors. les utiliser comme huiles isolantes pour câbles. 



  On peut utiliser comme-, solvant des fractions d9hydrocarbures qui bouillent dans l'intervalle de 50  a 120 Co Ex  leo- On traite un-produit résiduaire obtenu lors de 19alkylation de benzol ou de naphtaline., et ayant une viscosité de 1200 est a 50   à une température supérieure à 80  par environ 10% de terres de   blanchiment.  Après filtration.\) on obtient un produit qui convient comme huile isolante de   câ-   dont la viscosité   n'est   pas notablement modifiée et qui possède un fac- 
 EMI2.2 
 teur de perte diélectrique- dans le domaine de- températures noxal. infé- rieur à   5.10-4.  



   <Desc / Clms Page number 1>
 
 EMI1.1
 



  PROCESS FOR OBTAINING INSULATING DB'fTIIES FOR CABLES.



  In the manufacture of high and low voltage cables it
 EMI1.2
 It is known to use insulating oils to impregnate dried paper insulation. For-ground cables and cables a. Viscous insulating oils are required and for cables with fluid insulating oils -Qn- imposes on the electrical properties of these insulating oils such as the dielectric loss factor. :

   conductivity, resistance to electric shocks etc., specific requirements which depend on the type of cable and the stresses to which the
 EMI1.3
 dielectric of the finished cable., During the examination S- -reception- of the cable- special importance is attached, for example to- low values of the
 EMI1.4
 cable loss factor of oil-paper insulation. The specifications of the "Verband Deutscher-Elektrotechniker (Association of German Engineers - Electricians), (? DE) as well as the specifications of other countries for example in Holland. 9 in Suiesèj; in Great Britain etc. give precise minimum values to be observed in all cases.



   When using the usual insulating oils for cables available on the market and coming from base oils with which they are mixed. resins, it is difficult to maintain the minimum values mentioned known as the loss factor, especially, as regards the specifica-
 EMI1.5
 valid statements. à..JJ 'foreign 0 The idea of 1.9 invention' aims to develop insulating oils for cables which have significant electrical properties.
 EMI1.6
 better than hitherto particularly with regard to the dielectric loss factor.
 EMI1.7
 



  The invention is based on the surprising soastation that the products obtained during the aHlation of aromatic hydrocarbons having a molecular weight greater than 500 are particularly suitable after suitable processing as starting materials for oils. insulating

 <Desc / Clms Page number 2>

 for cables),) of great value and having electrical properties that have not yet been achieved
These substances are purified which can be obtained by means of
 EMI2.1
 ceded by means of adsorptive agents such as, for example, bleaching earths, silica salts and aluminum oxides, the water content of which cannot exceed a maximum value, possibly in the presence of a solvent,

   "at normal to high temperatures and can therefore be used as insulating oils for cables.



  Hydrocarbon fractions which boil in the range of 50 to 120 Co can be used as the solvent. A waste product obtained in the alkylation of benzol or naphthalene having a viscosity of 1200 is 50 to 50 is treated. at a temperature above 80 by about 10% bleaching earth. After filtration. \) A product is obtained which is suitable as an insulating oil of which the viscosity is not appreciably changed and which has a characteristic
 EMI2.2
 dielectric lossor in the noxal temperature range. less than 5.10-4.


    

Claims (1)

REVENDICATION. CLAIM. Procédé d'obtention d'huiles isolantes pour câbles caractérisé en ce qu'on purifie.les produits pouvant être obtenus lors de l'alkylation EMI2.3 d9hydrocarbures aromatiques, à des températures normales ou élevées, éven- tuellement en présence d'un solvant, au moyen d'agents d'adsorption tels que des terres de blanchiment. des gels de silice ou des oxydes d'aluminium. Process for obtaining insulating oils for cables characterized in that the products obtainable during the alkylation are purified. EMI2.3 aromatic hydrocarbons, at normal or elevated temperatures, optionally in the presence of a solvent, by means of adsorption agents such as bleaches. silica gels or aluminum oxides.
BE504293D BE504293A (en)

Publications (1)

Publication Number Publication Date
BE504293A true BE504293A (en)

Family

ID=145197

Family Applications (1)

Application Number Title Priority Date Filing Date
BE504293D BE504293A (en)

Country Status (1)

Country Link
BE (1) BE504293A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000622A1 (en) * 1977-07-21 1979-02-07 Gulf Research & Development Company Liquid dielectric composition
EP0000621A1 (en) * 1977-07-21 1979-02-07 Gulf Research & Development Company Liquid dielectric composition
EP0000619A1 (en) * 1977-07-21 1979-02-07 Gulf Research & Development Company Liquid dielectric composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000622A1 (en) * 1977-07-21 1979-02-07 Gulf Research & Development Company Liquid dielectric composition
EP0000621A1 (en) * 1977-07-21 1979-02-07 Gulf Research & Development Company Liquid dielectric composition
EP0000619A1 (en) * 1977-07-21 1979-02-07 Gulf Research & Development Company Liquid dielectric composition

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