FR2523362A1 - HIGH VOLTAGE INSULATOR - Google Patents

HIGH VOLTAGE INSULATOR Download PDF

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Publication number
FR2523362A1
FR2523362A1 FR8303520A FR8303520A FR2523362A1 FR 2523362 A1 FR2523362 A1 FR 2523362A1 FR 8303520 A FR8303520 A FR 8303520A FR 8303520 A FR8303520 A FR 8303520A FR 2523362 A1 FR2523362 A1 FR 2523362A1
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FR
France
Prior art keywords
section
insulator
cross
voltage insulator
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.)
Withdrawn
Application number
FR8303520A
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French (fr)
Inventor
Peter Nadler
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.)
HERMSDORF KERAMIK VEB
Original Assignee
HERMSDORF KERAMIK VEB
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 HERMSDORF KERAMIK VEB filed Critical HERMSDORF KERAMIK VEB
Publication of FR2523362A1 publication Critical patent/FR2523362A1/en
Withdrawn legal-status Critical Current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
    • H01B17/42Means for obtaining improved distribution of voltage; Protection against arc discharges

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Bodies (AREA)
  • Insulators (AREA)

Abstract

The invention relates to a high-voltage insulator which is primarily used in power supply devices. The aim of the invention is to develop a technically simple high-voltage insulator which is technologically cost-effective. The object of the invention is to design an insulating body structurally such that all the material which is used is used for transmitting the mechanical stress, the electrical requirement being satisfied at the same time, and is achieved in that the cross-section is an equilateral polygon, preferably an equilateral triangle, having corners which are more or less rounded off which, along the rod axis, is continuously rotated around said rod such that the multi-start helix produced represents the electrically required leakage breakdown path. The main field of application of the invention is the production of insulators.

Description

"Isolateur haute tension "
Domaine d'application de l'invention
L'invention concerne un isolateur haute tension utilisé principalement dans les installations de fournitures d'énergie.
"High voltage insulator"
Scope of the invention
The invention relates to a high voltage isolator used mainly in energy supply installations.

Caractéristiques des solutions techniques connues
La forme jusqu'd maintenant connue et mise en oeuvre des isolateurs haute tension, se compose du fut assurant la résistance mécanique et qui, en règle générale a une section transversale circulaire, et dee ailettes faisant saillie vers l'extérieur sur ct fut, servant à assurer des spécifications électriques. Cette forme résulte, d'une part, des possibilités limitées de mise en forme de la technologie connue des céramiques, mais elle a été également étendue, partiellement aussi pour des raisons technologiques, à des isolateurs constitués d'autres matériaux, par exemple de matière plastique.Par ailleurs, la forme circulaire de la section transversale du trognon a la propriété d'opposer aux sollicitations en flexion, s'exerçant selon des directions quelconques, la m8me résistance.
Characteristics of known technical solutions
The form hitherto known and implemented of high-voltage insulators, consists of the barrel ensuring mechanical resistance and which, as a rule has a circular cross section, and of fins projecting outwards on this side, serving to ensure electrical specifications. This shape results, on the one hand, from the limited possibilities of shaping the known technology of ceramics, but it has also been extended, partially also for technological reasons, to insulators made of other materials, for example of material On the other hand, the circular shape of the cross section of the core has the property of opposing the flexural stresses, exerted in any directions, the same resistance.

Les ailettes disposées autour dt fut circulaire sont constituées, soit d'une pluralité d'éléments de structure individuel comme dans le cas de l'isolateurbarreau, soit d'un élément de structure cohérant en forme d'hélice comme dans le cas de l'isolateur "spirelec", (D3-OS 1 615 893). La participation des ailettes à la masse totale de l'isolateur peut être de 30 à 40 %. Cette partie de la masse n'est utilisée qu'électriquement mais non en ce qui concerne la résistance mécanique. The fins arranged around dt was circular consist either of a plurality of individual structural elements as in the case of the barrel insulator, or of a coherent structural element in the form of a helix as in the case of the "spirelec" isolator, (D3-OS 1 615 893). The participation of the fins in the total mass of the insulator can be 30 to 40%. This part of the mass is only used electrically but not with regard to mechanical resistance.

But de invention -
Le but de l'invention est de créer un isolateur haute tension d'une technique simple et technologiquement économique.
Purpose of invention -
The object of the invention is to create a high voltage isolator of a simple and technologically economical technique.

Sxnosé de la nature de l'invention
L'invention vise à réaliser un corps d'isolateur de façon que la totalité du matériau mise en oeuvre soit utilisée pour prendre en charge les sollicitations mécaniques, tout en assurant simultanément les exigences électriques. Le rapport entre la mise en oeuvre de matériau et les sollicitations mécaniques pouvant etre assu mées, doit alors entre amélioré.
Nature of the invention
The invention aims to produce an insulator body so that all of the material used is used to handle the mechanical stresses, while simultaneously ensuring the electrical requirements. The relationship between the use of material and the mechanical stresses that can be assumed, must therefore be improved.

Ce but est atteint conformément à l'invention en ce que la section transversale du corps d'isolateur présente la forme d'un polygone à côtés égaux, de préférence d'un triangle équilatéral, le profil de la section transversale pivotant de façon continue autour de l'axe principal du corps de l'isolateur. Les angles du polygone qui peuvent être plus ou moins arrondis, constituent alors une hélice à plusieurs pas, qui peut assurer électriquement la fonction des ailettes. Mais à la différence des ailettes individuelles classiques, ou bien de l'ailette en hélice connue de l'isolateur "spirelec", cette hélice conforme à l'invention est dans chaque plan de section transversale, une partie constitutive de la section assurant la résistance mécanique qui a la forme d'un polygone à côtés égaux. This object is achieved in accordance with the invention in that the cross section of the insulator body has the shape of a polygon with equal sides, preferably an equilateral triangle, the profile of the cross section pivoting continuously around of the main axis of the insulator body. The angles of the polygon which can be more or less rounded, then constitute a helix with several steps, which can electrically ensure the function of the fins. But unlike the conventional individual fins, or else the known helical fin of the "spirelec" isolator, this propeller according to the invention is in each cross-section plane, a constituent part of the section ensuring the resistance mechanical which has the shape of a polygon with equal sides.

De cette façon, il n'est pas nécessaire de rapporter en supplément sur lf eut des ailettes faisant saillie vers l'extérieur. Ainsi, on obtient un rapport plus avantageux entre le matériau mis en oeuvre et la résistance mécanique par comparaison avec les isolateurs de formes de construction connues. In this way, it is not necessary to add in addition to the finned outwardly projecting fins. Thus, a more advantageous ratio is obtained between the material used and the mechanical resistance by comparison with the insulators of known construction forms.

La réalisation du corps d'isolateur de préférence en céramique, peut s'effectuer par pressage isostatique , usinag à blanc Ju bien également par tournage à l'état demi-sec avec un rapport réglable constant entre la vitesse de rotation et l'avance axiale. The insulator body, preferably made of ceramic, can be produced by isostatic pressing, white machining Ju well also by turning in the semi-dry state with a constant adjustable ratio between the speed of rotation and the axial advance. .

Exemple de réalisation
La solution conforme à l'invention ainsi que ses avantages vont être expliqués plus en détail en se référant à un exemple de réalisation représenté sur les dessins ci-joints dans lesquels
- la figure 1 est une vue partielle en élévation et en demi-coupe diamètrale d 'un isolateur conforme à l'invention,
- la figure 2 est une vue en coupe transversale de ce même isolateur.
Example of realization
The solution according to the invention as well as its advantages will be explained in more detail with reference to an exemplary embodiment shown in the accompanying drawings in which
FIG. 1 is a partial view in elevation and in diametric half-section of an insulator according to the invention,
- Figure 2 is a cross-sectional view of this same insulator.

Sur les figures 1 et 2 est représenté un corps d'isolateur dont la section transversale est un triangle équilatéral arrondi dans les angles. La figure 1 montre un tronçon d'isolateur engendré par une rotation de 3600 du profil de section transversale représenté sur la figure 2. On a indiqué les courbes en hélice que décrivent pendans la rotation, les angles 1 et les milieux 2 des côtés du triangle.Sur la coupe verticale est indiqué le profil 3 des hélices ainsi engendrées. Entre les différentes hélices il n'y a aucune partie de surface parallèle à l'axe principal. La pente des hélices, c'est-à-dire le degré de rotation de la section transversale, détermine la longueur des trajets de contournement de 1 décharge importante pour
les applications électriques. Comme trajets de contourne-
ment de la décharge, la ligne de coupe du profil 3 des hélices, doit être prise en corsidération aussi bien que les courbes en hélices 2 décrites par les milieux des cotés du triangle.
In Figures 1 and 2 is shown an insulator body whose cross section is an equilateral triangle rounded in the corners. Figure 1 shows a section of insulator generated by a 3600 rotation of the cross-sectional profile shown in Figure 2. The helical curves shown during the rotation, angles 1 and midpoints 2 of the sides of the triangle have been indicated. . On the vertical section is indicated the profile 3 of the propellers thus generated. Between the different propellers there is no part of the surface parallel to the main axis. The slope of the propellers, i.e. the degree of rotation of the cross section, determines the length of the bypass paths of 1 large discharge for
electrical applications. As bypass routes
ment of the discharge, the section line of the profile 3 of the helices, must be taken in corsideration as well as the curves in helices 2 described by the circles on the sides of the triangle.

Claims (2)

R E V E N D I C A Tlo NS  R E V E N D I C A Tlo NS 1. Isolateur haute tension, constitué d'un corps isolant en forme de barreau muni d'armatures des deux csstést isolateur caractérisé en ce que sa section transversale est un polygone à cOtés égaux, de préférence un triangle équilatéral, avec des angles plus ou moins arrondis, qui pivote le long de l'axez central de façon continue autour de celui-ci, l'hélice à pas multiples (1, 2, 3) ainsi engendrée constituant les trajets de contournement nécessaires de la décharge. 1. High voltage insulator, consisting of an insulating body in the form of a bar provided with reinforcements of the two insulator csstést characterized in that its cross section is a polygon with equal sides, preferably an equilateral triangle, with angles more or less rounded, which pivots along the central axis continuously around it, the multi-pitch propeller (1, 2, 3) thus generated constituting the necessary bypass paths of the discharge. 2.- Isolateur haute tension selon la revendication 1, caractérisé en ce que la section transversale du corps d'isolateur, à ses extrémités munies d'armatures, se transforme en une section transversale circulaire ou bien approximativement circulaire.  2. High-voltage insulator according to claim 1, characterized in that the cross section of the insulator body, at its ends provided with armatures, turns into a circular or approximately circular cross section.
FR8303520A 1982-03-15 1983-03-03 HIGH VOLTAGE INSULATOR Withdrawn FR2523362A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD23812282A DD209370A3 (en) 1982-03-15 1982-03-15 HIGH VOLTAGE ISOLATOR

Publications (1)

Publication Number Publication Date
FR2523362A1 true FR2523362A1 (en) 1983-09-16

Family

ID=5537240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8303520A Withdrawn FR2523362A1 (en) 1982-03-15 1983-03-03 HIGH VOLTAGE INSULATOR

Country Status (8)

Country Link
AT (1) AT384117B (en)
CH (1) CH661140A5 (en)
DD (1) DD209370A3 (en)
DE (1) DE3303896A1 (en)
FR (1) FR2523362A1 (en)
RO (1) RO82765B (en)
SE (1) SE8301378L (en)
SU (1) SU1292043A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH347866A (en) * 1958-03-07 1960-07-31 D Electro Ceramique Comp Gen High voltage insulator
DE2756731A1 (en) * 1976-12-21 1978-06-22 Elequipo Cast resin electrical insulator - has steep thin bell portions enclosing annular spaces underneath them

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH347866A (en) * 1958-03-07 1960-07-31 D Electro Ceramique Comp Gen High voltage insulator
DE2756731A1 (en) * 1976-12-21 1978-06-22 Elequipo Cast resin electrical insulator - has steep thin bell portions enclosing annular spaces underneath them

Also Published As

Publication number Publication date
SU1292043A1 (en) 1987-02-23
ATA43483A (en) 1987-02-15
SE8301378D0 (en) 1983-03-14
CH661140A5 (en) 1987-06-30
RO82765B (en) 1984-08-30
RO82765A (en) 1984-06-21
DE3303896A1 (en) 1983-09-22
DD209370A3 (en) 1984-04-25
AT384117B (en) 1987-10-12
SE8301378L (en) 1983-09-16

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