DE926080C - Long rod insulator with rain umbrellas - Google Patents
Long rod insulator with rain umbrellasInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means 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)
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)
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 |
-
1938
- 1938-02-20 DE DEB5526D patent/DE926080C/en not_active Expired
Patent Citations (2)
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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