AT125048B - Insulator for high voltage lines. - Google Patents

Insulator for high voltage lines.

Info

Publication number
AT125048B
AT125048B AT125048DA AT125048B AT 125048 B AT125048 B AT 125048B AT 125048D A AT125048D A AT 125048DA AT 125048 B AT125048 B AT 125048B
Authority
AT
Austria
Prior art keywords
insulator
voltage lines
high voltage
resistance
discharges
Prior art date
Application number
Other languages
German (de)
Original Assignee
Corning Glass Works
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 Corning Glass Works filed Critical Corning Glass Works
Application granted granted Critical
Publication of AT125048B publication Critical patent/AT125048B/en

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  • Insulators (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Isolator für Hochspannungsleitungen. 



   Es ist   bekannt, Hoehspannungsisolatoren zur   besseren Verteilung des elektrischen Feldes an den Stellen, wo der Isolator mit dem Leitungsdraht und mit der   Isolatorstutze   in   Berührmm     kommt.   mit   metallischen Überzügen zu versehen.   



   Die bisher bekannten derartigen Überzüge besitzen durchwegs zu geringen   Widerstand,   um die Kranzentladungen am Rande des Überzuges zu verhindern. Es ist auch unbedingt   erforderlich,   dass 
 EMI1.1 
 



   Ein gleichmässiger   MetaIIniedersehlag hat zu geringen Widerstand ; wird er   mit einer Spritzpistole aufgetragen, so bildet sieh eine Lage von Teilchen bestimmter Grösse. Die Schicht erhält daher eine merkliche Dicke, so dass ihr Widerstand nur gering ist. Auch ein   Metallanstrieh   von   Teilchen   grosser Leitfähigkeit ist unbrauchbar wegen des geringen Widerstandes der Schicht. Aluminiumanstriche haben zwar hohen Widerstand, aber sie ergeben keine ununterbrochene leitende Oberfläche, sondern   sind von   Punkt zu Punkt unterbrochen.

   Dasselbe gilt hinsichtlich der in   Vorschlag gebrachten Glasuren, die   offenbar ein Metallpulver enthalten und deren Widerstand gleichfalls zu gering ist. um Kranzentladungen zu verhindern. 
 EMI1.2 
 
 EMI1.3 
 Rille und an der Innenwand der mit Gewinde versehenen   Ausnehmung für   die   Isolatorstütze   folgendermassen angebracht. 



   Die gewünschten Teile des Isolators werden im heissen Zustand mit einer Lösung eines Metall- 
 EMI1.4 
 und bewirkt dadurch, dass dünne Luftschichten zwischen der leitenden Fläche und dem Isolator und zwischen Leitungsdraht und Isolator, durch welche Entladungen stattfinden   können.   wirksam vermieden werden. Das Vermeiden der   Beanspruchung   und der daraus folgenden Entladung vermindert nicht nur die   Störungen   des Radioverkehrs, sondern verhindert auch   Kraftverluste   und schont die Isolatorstützen durch Hintanhaltung der Bildung ätzender Gase, welche   durch solehe Entladungen entgehen.   



     PATENT-ANSPRÜCHE   :
1. Isolator für Hochspannungsleitungen mit metallischen Überzügen an den Berührungsstellen des Isolators mit dem Leitungsdraht und der   Isolatorstütze,   dadurch gekennzeichnet, dass diese Überzüge aus einer an sieh bekannten irisierenden Schicht bestehen, die durch Aufspritzen einer Zinnsalzlösung auf die Isolatormasse unter Erhitzen derselben gebildet wird. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Insulator for high voltage lines.



   It is known, high-voltage insulators for better distribution of the electrical field at the points where the insulator comes into contact with the lead wire and with the insulator support. to be provided with metallic coatings.



   The previously known coatings of this type consistently have too little resistance to prevent the corona discharges at the edge of the coating. It is also imperative that
 EMI1.1
 



   An even metal deposit has too little resistance; if it is applied with a spray gun, it forms a layer of particles of a certain size. The layer is therefore given a noticeable thickness so that its resistance is only low. A metal coating of particles of high conductivity is also useless because of the low resistance of the layer. Although aluminum paints have high resistance, they do not result in an uninterrupted conductive surface, but are interrupted from point to point.

   The same applies to the proposed glazes, which apparently contain a metal powder and whose resistance is also too low. to prevent wreath discharges.
 EMI1.2
 
 EMI1.3
 Groove and attached to the inner wall of the threaded recess for the insulator support as follows.



   The desired parts of the insulator are in the hot state with a solution of a metal
 EMI1.4
 and thereby causes thin air layers between the conductive surface and the insulator and between the conductor wire and the insulator, through which discharges can take place. effectively avoided. Avoiding the stress and the resulting discharge not only reduces the disruption to radio traffic, but also prevents power losses and protects the insulator supports by preventing the formation of corrosive gases, which escape due to such discharges.



     PATENT CLAIMS:
1. Insulator for high-voltage lines with metallic coatings at the contact points of the insulator with the conductor wire and the insulator support, characterized in that these coatings consist of an iridescent layer known per se, which is formed by spraying a tin-salt solution onto the insulator mass while heating it.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

2. Isolator nach Anspruch 1, dadurch gekennzeichnet, dass der Widerstand der leitenden r-hicht nach dem äusseren Rande zu zunimmt. EMI1.5 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Insulator according to claim 1, characterized in that the resistance of the conductive r-hicht increases towards the outer edge. EMI1.5 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT125048D 1928-11-24 1929-11-22 Insulator for high voltage lines. AT125048B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US125048XA 1928-11-24 1928-11-24

Publications (1)

Publication Number Publication Date
AT125048B true AT125048B (en) 1931-10-26

Family

ID=21755269

Family Applications (1)

Application Number Title Priority Date Filing Date
AT125048D AT125048B (en) 1928-11-24 1929-11-22 Insulator for high voltage lines.

Country Status (1)

Country Link
AT (1) AT125048B (en)

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