DE468354C - High voltage support isolator - Google Patents

High voltage support isolator

Info

Publication number
DE468354C
DE468354C DES75506D DES0075506D DE468354C DE 468354 C DE468354 C DE 468354C DE S75506 D DES75506 D DE S75506D DE S0075506 D DES0075506 D DE S0075506D DE 468354 C DE468354 C DE 468354C
Authority
DE
Germany
Prior art keywords
cavity
high voltage
walls
air cavity
voltage support
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
DES75506D
Other languages
German (de)
Inventor
Dr-Ing Walther Estorff
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens 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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DES75506D priority Critical patent/DE468354C/en
Application granted granted Critical
Publication of DE468354C publication Critical patent/DE468354C/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
    • H01B17/50Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like

Description

Hochspannungsstützisolator Bei den gebräuchlichen rohrförmig ausgebildeten Hochspannungsstützisolatoren wird der im Innern befindliche Lufthohlraum durch die beiderseitigen metallischen Kappen verschlossen. Die oberste Kappe dient zum Tragen der Hochspannungsleitung, die untere, meistens geerdete Kappe zum Befestigen des Isolierkörpers.. Es werden an solchen Isolatoren . nicht selten Innenüberschläge beobachtet, die in der Regel zur Zerstörung des Isolators führen. Diese Innenüberschläge sind in vielen Fällen darauf zurückzuführen, daß die an der oberen Kappe herrschende elektrische Felddichte ein Glimmen der Luft im Innenhohlraum des Isolators herbeiführt und die eingeschlossene Luft unter Bildung von Ozon und Oxydationsprodukten des Stickstoffs verunreinigt. Bei Anwesenheit geringster Feuchtigkeitsmengen bildet sich auf den Wandungen des Hohlraumes eine leitende säurehaltige Schicht, die einen Innenüberschlag von Kopf- zu Fußflansch begünstigt. Man hat schon als Abhilfe dagegen den Innenhohlraum mit einem elektrisch festen Medium gefüllt. Die unangenehmen Eigenschaften dieser Füllmittel bestehen aber in der Treibwirkung und Rissebildung bei wechselnden Temperaturen. Auch ist es bereits vorgeschlagen worden, den von der Außenluft abgeschlossenen Hohlraum eines Hochspannungsisolators mit einer Einrichtung zu verbinden, die den Hohlraum entfeuchtet.High-voltage support insulator for the common tubular ones High-voltage post insulators is the air cavity located inside through the Metallic caps closed on both sides. The top cap is used for wearing of the high-voltage line, the lower, usually grounded cap for attaching the Insulator .. It will be attached to such insulators. not infrequently internal flashovers observed, which usually lead to the destruction of the isolator. These inside flashovers are in many cases due to the fact that the prevailing on the top cap electric field density causes the air in the inner cavity of the insulator to glow and the enclosed air with the formation of ozone and oxidation products of the Contaminated with nitrogen. Forms in the presence of the smallest amounts of moisture On the walls of the cavity there is a conductive acidic layer, which is a Internal overlap from head to foot flange is favored. One already has as a remedy against it the inner cavity is filled with an electrically solid medium. The unpleasant properties However, these fillers consist in the blowing effect and the formation of cracks when changing Temperatures. It has also already been proposed that the one closed off from the outside air To connect cavity of a high-voltage insulator with a device that the Dehumidified cavity.

Der Erfindungsgedanke besteht nun darin, die unter dem Einfluß der elektrischen Feldei gebildeten chemischen Verunreinigungen der Luft in unschädlicher Form zu binden, indem in den Lufthohlraum ein chemischer Stoff in Form eines Anstriches der Wandungen eingebracht ist. Vorteilhaft ist es, um z. B. das Ozon zu binden, den Wandungen des Hohlraumes einen Anstrich mit Leinölfirnis zu geben. Sollen nicht nur das Ozon, sondern auch die Oxyde des Stickstoffs gebunden «-erden, so verwendet man z. B. ungelöschten oder gelöschten Kalk, den man in Form von Pulver auf eine Klebeschicht am Boden des Innenhohlraumes unterbringen kann.The idea of the invention is now that under the influence of electrical field egg formed chemical impurities in the air in harmless Binding form by placing a chemical substance in the form of a paint in the air cavity the walls is introduced. It is advantageous to z. B. to bind the ozone, to give the walls of the cavity a coat of linseed oil varnish. Should not only the ozone, but also the oxides of nitrogen, are bound «- earth, so used one z. B. unslaked or slaked lime, which is in the form of powder on a Can accommodate adhesive layer at the bottom of the inner cavity.

Claims (3)

PATENTANSPRÜCHE: i. Hochspannungsstützisolator mit einem inneren Lufthohlraum, dadurch gekennzeichnet, daß in den Hohlraum chemische Stoffe in Form eines Anstriches der Wandungen eingebracht sind, die die unter dem Einfluß der elektrischen Felder gebildeten Verunreinigungen der Luft in unschädlicher Form binden. PATENT CLAIMS: i. High-voltage post insulator with an internal air cavity, characterized in that in the cavity chemical substances in the form of a paint the walls are introduced, which are under the influence of the electric fields Binding airborne contaminants in harmless form. 2. Hochspannungsstützisolator nach Anspruch i, dadurch gekennzeichnet, daß die Wandungen des Lufthohlraumes mit Leinölfirnis angestrichen sind. 2. High voltage post insulator according to claim i, characterized in that the walls of the air cavity with Linseed oil varnish are coated. 3. Hochspannungsstützisolator nach Anspruch i und 2, dadurch gekennzeichnet, daß sich an dem Boden des Lufthohlraumes ungelöschter oder gelöschter Kalk befindet.3. High-voltage post insulator according to claim i and 2, characterized in that undeleted at the bottom of the air cavity or slaked lime.
DES75506D 1926-07-29 1926-07-29 High voltage support isolator Expired DE468354C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES75506D DE468354C (en) 1926-07-29 1926-07-29 High voltage support isolator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES75506D DE468354C (en) 1926-07-29 1926-07-29 High voltage support isolator

Publications (1)

Publication Number Publication Date
DE468354C true DE468354C (en) 1928-11-10

Family

ID=7505403

Family Applications (1)

Application Number Title Priority Date Filing Date
DES75506D Expired DE468354C (en) 1926-07-29 1926-07-29 High voltage support isolator

Country Status (1)

Country Link
DE (1) DE468354C (en)

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