DE850159C - Insulating fluid for high voltage electrical equipment - Google Patents

Insulating fluid for high voltage electrical equipment

Info

Publication number
DE850159C
DE850159C DES18740A DES0018740A DE850159C DE 850159 C DE850159 C DE 850159C DE S18740 A DES18740 A DE S18740A DE S0018740 A DES0018740 A DE S0018740A DE 850159 C DE850159 C DE 850159C
Authority
DE
Germany
Prior art keywords
oil
electrical equipment
voltage electrical
insulating liquid
high voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DES18740A
Other languages
German (de)
Inventor
Harry Dr Phil Heering
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES18740A priority Critical patent/DE850159C/en
Application granted granted Critical
Publication of DE850159C publication Critical patent/DE850159C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/20—Insulators 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
    • H01B3/22—Insulators 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/022—Well-defined aliphatic compounds saturated
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02—Well-defined aliphatic compounds
    • C10M2203/024—Well-defined aliphatic compounds unsaturated
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/04—Well-defined cycloaliphatic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/06—Well-defined aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/02—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only
    • C10M2211/024—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen and halogen only aromatic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/06—Perfluorinated compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/16—Dielectric; Insulating oil or insulators
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/17—Electric or magnetic purposes for electric contacts

Description

Isolierflüssigkeit für elektrische Hochspannungsgeräte Die zur Tränkung elektrischer Hochspannungsgeriite und Einrichtungen, wie insbesondere Ölkabel oder Transformatoren, verwendeten mineralischen Öle gesättigten Charakters haben den Nachteil, unter der Einwirkung starker elektrischer Felder Gase abzusondern, so daß innerhalb des Feldes Gaseinschlüsse entstehen, in denen Ionisationserscheinungen auftreten können. Es ist zwar gelungen, :Mineralöle zu finden, die so viele Anteile aromatischerKohlenwasserstoffe oder ungesättigter Kohlenwasserstoffe enthalten, daß sie die Neigung haben, unter solchen Bedingungen Gas aufzunehmen, so claß die Entstehung von Hohlräumen innerhalb des Dielektrikums nicht zu befürchten ist. Die Verwendung solcher 'Naturöle, die aus einem unentwirrbaren Gemisch der verschiedensten Kohlenwasserstoffe bestehen, bringt jedoch den Nachteil, daß es nicht möglich ist, auf längere Dauer hinaus gleichrrräißige Öle zu erhalten. Es ist andererseits bereits auch der Vorschlag gemacht worden, ein reinparaffinisches Öl zu verwenden, das sich bekanntlich durch gute Alterungs-und gute dielektrische Eigenschaften auszeichnet, und ihm eine kleine Menge, beispielsweise etwa 211/9, eines Kohlenwasserstoffes, der eine oder mehrere Doppelbindungen oder aromatische Gruppen enthält, zuzusetzen, der die Eigenschaft hat, unter Einwirkung starker elektrischer Felder Gas aufzunehmen. Hierbei wurde in erster Linie an Naphthalin gedacht. Naphthalin und ähnliche Stoffe haben jedoch den Nachteil, daß sie selbst eine hohe Dampfspannung haben; bei Vakuumbehandlung, z. B. bei der Vakuumträäikung von Kabeln, kann dadurch ein partielles Absaugen der Zusatzstoffe verursacht werden.Insulating liquid for electrical high-voltage devices for impregnation electrical high-voltage devices and devices, such as in particular oil cables or Transformers, used mineral oils of saturated character have the Disadvantage of emitting gases under the influence of strong electric fields, see above that within the field gas inclusions arise in which ionization phenomena may occur. We have succeeded in: Finding mineral oils that have so many proportions contain aromatic hydrocarbons or unsaturated hydrocarbons, that they have the tendency to take in gas under such conditions, that is the reason The formation of cavities within the dielectric is not to be feared. the Use of such 'natural oils, which consist of an inextricable mixture of the most varied Hydrocarbons exist, but has the disadvantage that it is not possible to obtain uniform oils over a longer period of time. On the other hand, it is already The suggestion has also been made to use a pure paraffinic oil that can is known to be characterized by good aging and good dielectric properties, and him a small amount, for example about 211/9, of a hydrocarbon, which contains one or more double bonds or aromatic groups to add, which has the property of absorbing gas under the influence of strong electric fields. Primarily naphthalene was thought of here. Naphthalene and similar substances however, have the disadvantage that they themselves have a high vapor tension; for vacuum treatment, z. B. in the Vakuumträikung of cables, a partial suction of the Additives are caused.

Gemäß der Erfindung werden deshalb als Zusatz zu einem gesättigten Öl, das als Isolierflüssigkeit für elektrische Hochspannungsgeräte und Einrichtungen dienen soll, solche eine oder mehrere Doppelbindungen enthaltende Kohlenwasserstoffe verwendet, deren Dampfspannung in der Größenordnungder Dampfspannung des Öles liegt. Zweckmäßig wird ein flüssiger Kohlenwasserstoff dieser Art gewählt. Geeignet ist beispielsweise ein Polybutadien, das durch sogenannte Blockpolymerisation aus reinem Butadiengas durch Katalyse mit metallischem Natrium erhalten wurde, wobei die Polymerisation nur bis zu einem niedrigen Grad getrieben ist. Als weiteres Beispiel sei ein ölartig flüssiges Mischpolymerisat aus Styrol und Isobutylen genannt. Günstig für die Zwecke .der Erfindung ist auch ein Styrolpolymerisat niedrigen Polymerisationsgrades, z. B. Di- oder Tristyrol. Dieser Stoff bietet neben seinen guten dielektrischen Eigenschaften den Vorteil, daß man es durch entsprechende Lenkung der Polymerisation bis zu einem gewünschten Grad in der Hand hat, die günstigsten Verhältnisse bezüglich Viskosität einerseits und Dampfspannung andererseits einzustellen.According to the invention, therefore, as an additive to a saturated Oil used as an insulating fluid for high-voltage electrical equipment and facilities is to serve, such hydrocarbons containing one or more double bonds whose vapor tension is in the order of magnitude of the vapor tension of the oil. A liquid hydrocarbon of this type is expediently selected. Suitable is for example a polybutadiene, which is produced by so-called block polymerization from pure Butadiene gas was obtained by catalysis with metallic sodium, the polymerization is driven only to a low degree. Another example is an oil-like one called liquid copolymer of styrene and isobutylene. Convenient for the purpose The invention is also a styrene polymer with a low degree of polymerization, e.g. B. di- or tristyrene. This material offers not only its good dielectric properties the advantage that you can control the polymerization up to one the desired degree in hand, the most favorable viscosity ratios on the one hand and steam tension on the other hand.

Die Zusatzstoffe müssen, wenn sie nicht von Haus aus sehr rein sind, durch gründliches Auswaschen gereinigt werden. Das vorerwähnte Polybutadien m.uß z. B. von allen Spuren von zurückgebliebenem Katalysator befreit werden. Für die Zwecke der Erfindung sind auch einige Verbindungen verwendbar, die nicht im eigentlichen Sinne uhgesättigt sind, die sich jedoch in irgendeiner Form hydrieren lassen, wie z. B. chloriertes oder fluoriertes Diphenyl. Bei Halogenderivaten ist darauf zu achten, daß nur solche Verbindungen gewählt werden, bei denen die Halogene sich, wie bei dem angeführten Beispiel, im Molekül in symmetrischer Stellung befinden.The additives must, if they are not inherently very pure, be cleaned by washing them thoroughly. The aforementioned polybutadiene must z. B. be freed from all traces of residual catalyst. For the For the purposes of the invention, some compounds can also be used that are not actually Senses are unsaturated, but which can be hydrogenated in some way, such as z. B. chlorinated or fluorinated diphenyl. In the case of halogen derivatives, this is the case ensure that only those compounds are chosen in which the halogens as in the example given, are in a symmetrical position in the molecule.

Claims (5)

PATENTANSPRÜCHE: i. Isolierflüssigkeit für elektrische Hochspannungsgerärte und Einrichtungen, insbesondere Ölkabel, bestehend aus einem gesättigten Öl, dem eine geringe Menge von eine oder mehrereDoppelbindungen enthaltendemKohlenwasserstoff zugesetzt ist, dadurch gekennzeichnet, daß dieses Zusatzmittel eine gleiche oder kleinere Dampfspannung hat als das Öl. PATENT CLAIMS: i. Insulating liquid for high-voltage electrical equipment and devices, in particular oil cables, consisting of a saturated oil to which a small amount of hydrocarbon containing one or more double bonds has been added, characterized in that this additive has a vapor tension equal to or lower than that of the oil. 2. Isolierflüssigkeit nach Anspruch i, gekennzeichnet durch die Verwendung eines Polybutadiens, das durch Blockpolymerisation aus reinem Butadiengas durch Katalyse mit metallischem Natrium erhalten ist. 2. insulating liquid according to claim i, characterized through the use of a polybutadiene obtained by block polymerization from pure Butadiene gas is obtained by catalysis with metallic sodium. 3. Isolierflüssigkeit nach Anspruch i, gekennzeichnet durch die Verwendung eines ölartig flüssigen Mischpolymerisats aus Styrol und Isobutylen. 3. Isolation fluid according to claim i, characterized by the use of an oil-like liquid copolymer made of styrene and isobutylene. 4. Isolierflüssigkeit nach Anspruch i, gekennzeichnet durch die Verwendung von chloriertem oder fluoriertem Diphenyl. 4. insulating liquid according to claim i, characterized through the use of chlorinated or fluorinated diphenyl. 5. Isolierflüssigkeit nach Anspruch i, gekennzeichnet durch die Verwendung eines Styrolpolymerisats niedrigen Polymerisationsgrades, insbesondere Di- oder Tristyrol.5. Isolation fluid according to claim i, characterized by the use of a styrene polymer low Degree of polymerization, especially di- or tristyrene.
DES18740A 1950-08-22 1950-08-23 Insulating fluid for high voltage electrical equipment Expired DE850159C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES18740A DE850159C (en) 1950-08-22 1950-08-23 Insulating fluid for high voltage electrical equipment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE742922X 1950-08-22
DES18740A DE850159C (en) 1950-08-22 1950-08-23 Insulating fluid for high voltage electrical equipment

Publications (1)

Publication Number Publication Date
DE850159C true DE850159C (en) 1952-09-22

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ID=25947417

Family Applications (1)

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DES18740A Expired DE850159C (en) 1950-08-22 1950-08-23 Insulating fluid for high voltage electrical equipment

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DE (1) DE850159C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088648B (en) * 1955-08-12 1960-09-08 Iashellia Res Ltd Electrical insulating oil
DE1292292B (en) * 1961-12-13 1969-04-10 Exxon Standard Sa Insulating oil
FR2345795A1 (en) * 1976-03-24 1977-10-21 Gen Electric PERFECTIONED LIQUID DIELECTRIC COMPOSITION AND CONDENSER IMPREGNATED WITH THIS COMPOSITION

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088648B (en) * 1955-08-12 1960-09-08 Iashellia Res Ltd Electrical insulating oil
DE1292292B (en) * 1961-12-13 1969-04-10 Exxon Standard Sa Insulating oil
FR2345795A1 (en) * 1976-03-24 1977-10-21 Gen Electric PERFECTIONED LIQUID DIELECTRIC COMPOSITION AND CONDENSER IMPREGNATED WITH THIS COMPOSITION

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