DE592264C - Hard paper implementation in which the places of higher electrical stress consist of insulating material with a higher dielectric constant than the remaining insulating material - Google Patents

Hard paper implementation in which the places of higher electrical stress consist of insulating material with a higher dielectric constant than the remaining insulating material

Info

Publication number
DE592264C
DE592264C DEF59084D DEF0059084D DE592264C DE 592264 C DE592264 C DE 592264C DE F59084 D DEF59084 D DE F59084D DE F0059084 D DEF0059084 D DE F0059084D DE 592264 C DE592264 C DE 592264C
Authority
DE
Germany
Prior art keywords
insulating material
dielectric constant
places
hard paper
consist
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
DEF59084D
Other languages
German (de)
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.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk 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 Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
Priority to DEF59084D priority Critical patent/DE592264C/en
Application granted granted Critical
Publication of DE592264C publication Critical patent/DE592264C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/26Lead-in insulators; Lead-through insulators

Landscapes

  • Insulating Bodies (AREA)
  • Insulators (AREA)

Description

Hartpapierdurchführung, in der die Stellen höherer elektrischer Beanspruchung aus Isolierstoff von höherer Dielektrizitätskonstante als der übrige Isolierstoff bestehen Es ist bekannt, bei Hochspannungsisolatoren mit inhomogenen elektridschen Feldern die höher beanspruchten Teile dadurch zu ,entlasten, daß an diesen Stellen sein Isolierstoff von höherer Dielektrizitätskonstante als an den übrigen Stellen angewandt wird. Dies kann beispielsweise bei ein-er Durchführung an den Teilen in der Nähe des Bolzens und des Flansches geschehen, wo eine besonders hohe Beanspruchung vorliegt.Hard paper bushing, in which the places of higher electrical stress Made of insulating material with a higher dielectric constant than the rest of the insulating material It is known that high-voltage insulators with inhomogeneous electrical Fields the more highly stressed parts to relieve the fact that at these points its insulating material has a higher dielectric constant than in the other places is applied. This can be done, for example, with one implementation on the parts in happen near the bolt and the flange, where a particularly high stress is present.

Bei Hartpapierdurchführungen, deren einzehne Papierlagen mit isolierendem Lack als Klebe- und Imprägniermittel unter Druck gewickelt sind, hat man bisher eine Stafelung des Dielektrikums nach der Di:elektrizitätskonstanten nicht vorgesehen. Es ist lediglich vorgeschlagen worden, die an die freie Atmosphäre grenzende Oberflächenschicht solcher Durchführungen lackreicher zu wickeln, als die übrigen Lagen zu dem Zwecke, die Widerstandsfähigkeit der Durchführungen gegen Witterungseinflüsse zu .erhöhen.In the case of hard paper feedthroughs, the individual layers of paper with insulating Lacquer as an adhesive and impregnating agent are wrapped under pressure, so far a staggering of the dielectric according to the dielectric constant is not provided. It has only been proposed that the surface layer adjacent to the free atmosphere to wind such bushings with more lacquer than the other layers for the purpose of to increase the resistance of the bushings to the weather.

Es ist zwar bekannt, im Dielektrikum von Durchführungsisolatoren geschichtete Einlagen vorzusehen, deren Schichtrichtung derart gewählt ist, daß sämtliche Schichten dieser Einlagen von den Kraftlinien des @elektrischen Feldes -geschnitten werden. Auch hat man schon Hartpapierdurchführungen mit einer aufgepreßten Fassung aus ungeschichteter Preßmasse hergestellt und durch Anwendung eines hohen Preßdruckes eine gleichförmige Dichte und .eine hohe dielektrische Festigkeit des ganzen Isolierkörpers erzielt. In beiden Fällen handelt es sich jedoch nicht um eine Abstufung des Isolationsmaterials, nach der Dielektrizitätskoustanten, sondern um die Erhöhung der Durchschlagsfestigkeit des Dielektrikums durch geeignete Wahl der Schichtrichtung bzw. durch Vermeidung von Lufteinschlüssen im Dielektrikum.It is known that bushing insulators are layered in the dielectric Provide deposits, the direction of the layers is chosen such that all layers These deposits are cut by the lines of force of the @electric field. One also already has hard paper bushings with a pressed-on version made of unlayered Molding compound produced and by using a high molding pressure a uniform Density and .a high dielectric strength of the entire insulating body is achieved. In both cases, however, it is not a question of a gradation of the insulation material, according to the dielectric constant, but about increasing the dielectric strength of the dielectric by a suitable choice of the layer direction or by avoidance of air inclusions in the dielectric.

Erfindungsgemäß wird bei einer Durchführung aus Hartpapier an den Stellen höherer elektrischer Beanspruchung ein Isolierstoff von höherer Dielektrizitätskonstanten als der übrige Isolierstoff in Gestalt .eines mit Natur-oder Kunstharz versehenen Papiers verwendet, das durch Walzen unter Druck oder durch andere Preßmittel stärker verdichtet worden ist als die übrigen Teile des Dielektrikums der Durchführung. Durch die verschiedene Einstellung des Druckes kann in Verbindung mit dem Harzgehalt der aufeinanderfolgenden Schichten die Dielektrizitätskonstante des Hartpapiers in weiten Grenzen geändert ,werden. Von allen Harzen für diese Zwecke nehmen in der Hochspannungstechnik die Kondensationsprodukte aus Phenolen und Formaldehyd :eine bevorzugte Stellung ein.According to the invention, in a lead-through made of hard paper to the If there is a higher electrical load, an insulating material with a higher dielectric constant than the rest of the insulating material in the form of a natural or synthetic resin Paper used, which is stronger by rolling under pressure or by other pressing means has been densified than the remaining parts of the dielectric of the implementation. The different pressure settings can be used in conjunction with the resin content of the successive layers is the dielectric constant of the hard paper be changed within wide limits. Of all resins for this purpose take in the condensation products of phenols and formaldehyde in high voltage technology : a preferred position.

Durch die Staffelung der Papierschichten des Durchführungsisolators nach der Dielektrizitätskonstanten gemäß der Erfindung wird an den Stellen höherer elektrischer Beanspruchung die elektrische Feldstärke selbst herabgesetzt. Die hierdurch bedingte gleichmäßige Beanspruchung des Dielektrikums ermöglichteine bessere Ausnutzung des Isoliermaterials und somit eine erhebliche Ersparnis an Isolierstoff bei gleicher Sicherheit. daß an den Stellen höherer Beanspruchung ein mit Harzen versehenes Papier verwendet wird, das durch Walzen unter Druck oder durch andere Preßmittel stärker verdichtet worden ist als die übrigen Teile des Dielektrikums der Durchführung.By staggering the paper layers of the bushing insulator according to the dielectric constant according to the invention is higher at the points electrical stress the electrical field strength itself degraded. The resulting uniform stress on the dielectric enables one better utilization of the insulating material and thus a considerable saving in insulating material with the same security. that in the places of higher stress a with resins provided paper is used, which is by rolling under pressure or by others Pressing agent has been compressed more than the remaining parts of the dielectric the implementation.

z. Hartpapierdurchführung nach Anspruch r, dadurch gekennzeichnet, daß auf das verdichtete Papier ein Kondensationsprodukt aus Phenolen und Formaldehyd aufgetragen ist.z. Hard paper bushing according to claim r, characterized in that that a condensation product of phenols and formaldehyde on the compressed paper is applied.

Claims (1)

PATENTANSPRÜCHE: z. Hartpapierdurchführung, in der die Stellten höherer elektrischer Beanspruchung aus Isolierstoff von höherer Dielektrizitätskonstante als der übrige Isolierstoff bestehen, dadurch gekennzeichnet,PATENT CLAIMS: e.g. Hard paper bushing in which the bodies are higher electrical stress from insulating material with a higher dielectric constant exist as the rest of the insulating material, characterized
DEF59084D 1925-06-09 1925-06-09 Hard paper implementation in which the places of higher electrical stress consist of insulating material with a higher dielectric constant than the remaining insulating material Expired DE592264C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF59084D DE592264C (en) 1925-06-09 1925-06-09 Hard paper implementation in which the places of higher electrical stress consist of insulating material with a higher dielectric constant than the remaining insulating material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF59084D DE592264C (en) 1925-06-09 1925-06-09 Hard paper implementation in which the places of higher electrical stress consist of insulating material with a higher dielectric constant than the remaining insulating material

Publications (1)

Publication Number Publication Date
DE592264C true DE592264C (en) 1934-02-03

Family

ID=7108714

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF59084D Expired DE592264C (en) 1925-06-09 1925-06-09 Hard paper implementation in which the places of higher electrical stress consist of insulating material with a higher dielectric constant than the remaining insulating material

Country Status (1)

Country Link
DE (1) DE592264C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285895A1 (en) * 1987-04-09 1988-10-12 Siemens Aktiengesellschaft High voltage isolation device for transformers and inductances, especially destinated to high voltage direct current transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0285895A1 (en) * 1987-04-09 1988-10-12 Siemens Aktiengesellschaft High voltage isolation device for transformers and inductances, especially destinated to high voltage direct current transmission

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