DE926080C - Long rod insulator with rain umbrellas - Google Patents

Long rod insulator with rain umbrellas

Info

Publication number
DE926080C
DE926080C DEB5526D DEB0005526D DE926080C DE 926080 C DE926080 C DE 926080C DE B5526 D DEB5526 D DE B5526D DE B0005526 D DEB0005526 D DE B0005526D DE 926080 C DE926080 C DE 926080C
Authority
DE
Germany
Prior art keywords
isolator
umbrellas
point
trunk
long rod
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
DEB5526D
Other languages
German (de)
Inventor
Fritz Dr Obenaus
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.)
BROWN
Original Assignee
BROWN
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 BROWN filed Critical BROWN
Priority to DEB5526D priority Critical patent/DE926080C/en
Application granted granted Critical
Publication of DE926080C publication Critical patent/DE926080C/en
Expired legal-status Critical Current

Links

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

Landscapes

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

Description

Die Erfindung betrifft Isolatoren, die aus einem langgestreckten, vollen keramischen Knüppel bestehen, der mit Regenschutzschirmen versehen ist, und. bezieht sich insbesondere auf eine vorteilhafte Anordnung und Form der Regenschutzschirme. Bisher wurden .die Regenschutzschirme häufig so an:-geordnet, daß -die von dem untersten Punkt der Tropfkante eines Schirmes unter q.5° gegen die Isolatorlärvgsachse gezogene Gerade, die die .im allgemeinen umgünstigste Einfallsrichtung ges. Regens wiedergibt, entweder den zylIndrischen Iso'latorstrunk beträchtlich oberhalb des Ansatzes des nächst unten folgenden Schirmes oder 2des-sen..ObeT-fläche selbst, weit außerhalb ,des Isolatorsttunkes, trifft. Im ersteren. Falle wird der Isolatorstrunk vom Regen selbst benetzt, und es bleibt .daher dieser benetzte Teil des Isolatorstr.unkes ohne erhebli her Isolationswert. Im arideren Falle ergibt sich infolge Verkürzung des. freien Luftüberschlagweges zwischen den Schirmen bei Regen eine unerwünschte Minderurig der Überschlagspannung. Beide Ausführungsformen verhalten. sich elektrisch ungünstig und geben zu vorzeitigen Entladungen und' Überschlägen bei höheren Spannungen Anlaß.The invention relates to insulators, which consist of an elongated, consist of full ceramic billet, which is provided with rain umbrellas, and. relates in particular to an advantageous arrangement and shape of the umbrella umbrellas. Up to now, the umbrella umbrellas have often been arranged in such a way that they are from the bottom Point of the drip edge of a screen drawn under q.5 ° against the isolator noise axis Straight line, which is the generally most unfavorable direction of incidence. Reproduces rain, either the cylindrical Iso'latorstrunk considerably above the approach of the next screen below or 2 of this top surface itself, far outside , the insulator dunk. In the former. The trap becomes the insulator stalk from the rain itself wetted, and therefore this wetted part of the insulator core remains without significant insulation value. In the other case there is a shortening as a result The free air flashover path between the umbrellas when it rains is an undesirable one Inferior in the flashover voltage. Both embodiments behave. itself electrically unfavorable and lead to premature discharges and flashovers at higher voltages Reason.

Bei einem Vollkernisolator der eingangs erwähnten Art mit Regenschutzschirmen, die sehr nahe dem Schnittpunkt der Erzeugenden des Isolatorstrunkes mit Geraden ansetzen, die vom untersten Punkt der Tropfkanten der Schirme unter 45° gegen die Isodatorlüngsachse gezogen sind, wird diesem Übelstand dadurch abgeholfen, daß erfindungsgemäß als Erzeugende für die Oberseite .der Regenschutzschirme ein Kreisbogen dient, der um den untersten Punkt der Schirmtropfkanten als Mittelpunkt reit eiinem Halbmesser geschlagen. ist, der dem Abstand dieses. Punktes von .dem Schnittpunkt.,der unter q.5° gegen die Isolatorlängsachse gezogenen Geraden mit der Erzeugenden des Isolatorstrunkes. gleich ist: Bei gegebener Baulänge läßt sich auf dieseWeise dieHöchstzahl derRegenschutzschirme unter voller Ausnutzung .des freien Luftüberschlagweges auf dem Isolatorstrunk anordnen.In the case of a solid core insulator of the type mentioned at the beginning with rain umbrellas, the one very close to the intersection of the generatrix of the insulator trunk with straight lines start from the lowest point of the drip edges of the screens under 45 ° against the Isodatorlüngsachse are drawn, this drawback is remedied that according to the invention an arc of a circle serves as the generator for the top of the umbrella a radius rides around the lowest point of the screen drip edge as the center beaten. that the distance is this. Point from .the intersection. That is below q.5 ° straight line drawn against the longitudinal axis of the isolator with the generating line of the isolator trunk. is the same: With a given length, the maximum number of umbrellas can be used in this way Arrange on the insulator trunk, making full use of the free air flashover path.

Fig. 2 zeigt zur Hälfte im Mittelschnitt und zur Hälfte in Ansicht einen vollständigen Langstabisolator nach der Erfindung mit metallischen Kappen auf seinen Strunkenden.Fig. 2 shows half in central section and half in view a complete long rod insulator according to the invention with metallic caps on his dunking ones.

Claims (1)

PATENTANSPRUCH: Langgestreckter keramischer Vollkernisolator mit Regenschutzschirmen, die sehr nahe Odem Schnittpun'kt der Erzeugenden des Isolatorstrunkes mit Geraden ansetzen, die vom untersten Punkt der Tropfk«nten der Schirme unter q.5° gegrn die Isolatorlängsachse gezogen sind, dadurch gekennzeichnet, daß .als Erzeugende für .die Oberseite der Regenschutzschirme ein, Kreisbogen ,dient, der um den untersten Punkt der Schirmtropfkanten als Mittelpunkt mit einem Halbmesser geschlagen ist, der dem Abstand dieses Punktes vors dem Schnittpunkt der unter q.5° gegen die Isolatorlängsachse gezogenen Geraden mit der Erzeugenden des Isolatorstrunkes gleich ist.PATENT CLAIM: Elongated ceramic full core insulator with rain shields, the very near point of intersection of the generatrix of the isolator trunk with straight lines place the bottom of the drip tips of the screens below q.5 ° Isolator longitudinal axis are drawn, characterized in that .as generators for .The top of the umbrellas, an arc of a circle, is used, the one around the bottom Point of the screen drip edge as the center point is struck with a radius, the distance of this point before the intersection of the under q.5 ° against the longitudinal axis of the isolator drawn straight line is the same as the generating line of the isolator trunk.
DEB5526D 1938-02-20 1938-02-20 Long rod insulator with rain umbrellas Expired DE926080C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB5526D DE926080C (en) 1938-02-20 1938-02-20 Long rod insulator with rain umbrellas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB5526D DE926080C (en) 1938-02-20 1938-02-20 Long rod insulator with rain umbrellas

Publications (1)

Publication Number Publication Date
DE926080C true DE926080C (en) 1955-04-07

Family

ID=6954058

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB5526D Expired DE926080C (en) 1938-02-20 1938-02-20 Long rod insulator with rain umbrellas

Country Status (1)

Country Link
DE (1) DE926080C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH163368A (en) * 1932-04-16 1933-08-15 A S Porcelainfabriken Norden Double-cap hanging insulator.
DE724903C (en) * 1937-12-14 1942-09-09 Bbc Brown Boveri & Cie Long rod insulator made of ceramic building material with shields evenly distributed over its length between the conically thickened clamping heads

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH163368A (en) * 1932-04-16 1933-08-15 A S Porcelainfabriken Norden Double-cap hanging insulator.
DE724903C (en) * 1937-12-14 1942-09-09 Bbc Brown Boveri & Cie Long rod insulator made of ceramic building material with shields evenly distributed over its length between the conically thickened clamping heads

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