CH87281A - Bushing insulator based on the capacitor principle. - Google Patents

Bushing insulator based on the capacitor principle.

Info

Publication number
CH87281A
CH87281A CH87281DA CH87281A CH 87281 A CH87281 A CH 87281A CH 87281D A CH87281D A CH 87281DA CH 87281 A CH87281 A CH 87281A
Authority
CH
Switzerland
Prior art keywords
capacitor principle
bushing insulator
dielectric
air
insulator based
Prior art date
Application number
Other languages
German (de)
Inventor
Cie Aktiengesellschaft Boveri
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of CH87281A publication Critical patent/CH87281A/en

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
    • H01B17/26Lead-in insulators; Lead-through insulators
    • H01B17/28Capacitor type

Landscapes

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

Description

  

  Durchführungsisolator nach dem     Kondensatorprinzip.       Die Verwendung des     Kondensatorprinzips     zur Herstellung von Durchführungsisolatoren  an sich ist bekannt. Diese Anordnung besitzt  aber die Nachteile aller Isolatoren mit festem  Isoliermittel, dass bei Verletzung des Materials  durch elektrische Beanspruchung an irgend  einer Stelle ein dauernd geschwächter Punkt  des Isoliermittels,     bezw.    des     Dielektrikums     geschaffen wird. Weiter weist dieselbe groben       dielektrischen        Verschiebungsfluss    und dadurch  hohe Beanspruchung der Luft am Flansch auf.  



  Zweck der vorliegenden Erfindung ist,  diese Nachteile zu vermeiden, dadurch, dass  Luft oder ein anderes Gas mit kleiner     Dielek-          trizitätskonstante,    z. B. Stickstoff, als     Dielek-          trikum    verwendet ist. Dabei kann Luft als       Dielektrikum    mit der Aussenluft in Verbin  dung stehen oder von derselben abgeschlossen  sein.  



  In der Zeichnung sind beispielsweise Aus  führungsformen des Erfindungsgegenstandes  schematisch dargestellt. Überall kommt festes  Isoliermaterial nur als mechanischer Träger  n Anwendung. Die eigentliche Isolation,       bezw.    das     Dielektrikuin    wird durch Luft oder    ein anderes     Gras    mit kleiner     Dielektrizitäts-          konstante    dargestellt.  



       Fig.    1 zeigt den Leiter b, welcher durch  den     Flansch    a hindurchgeführt ist. Nach dem       Kondensatorprinzip    wird die gleichmässige  elektrische Beanspruchung des     Dielektrikums     Luft durch eine Reihe konzentrischer Zylin  der c, d bewirkt, welche durch Stücke aus  Isoliermaterial     e    distanziert werden. Es ist       eine    solche Formgebung des Isolators zu       empfehlen,    dass ein Überschlag aussen und  nicht im Innern des Isolators stattfindet.  



       Fig.    2 zeigt eine     Anordnung,    wo die     Iso-          lierstücke    e als Zylinder ausgebildet sind.  Auch hier ist Luft elektrisch beanspruchtes  Isolationsmaterial,     bezw.        Dielektrikum.  



  Bushing insulator based on the capacitor principle. The use of the capacitor principle for the production of bushing insulators is known per se. However, this arrangement has the disadvantages of all insulators with solid insulating means that if the material is damaged by electrical stress at any point a permanently weakened point of the insulating means, respectively. of the dielectric is created. Furthermore, the same has a coarse dielectric displacement flux and thus high stress on the air on the flange.



  The purpose of the present invention is to avoid these disadvantages by using air or another gas with a low dielectric constant, e.g. B. nitrogen, is used as a dielectric. Air as a dielectric can be in connection with the outside air or be closed off by the same.



  In the drawing, for example, embodiments of the subject invention are shown schematically. Solid insulating material is used everywhere only as a mechanical carrier. The actual isolation, respectively. the dielectric is represented by air or some other grass with a low dielectric constant.



       Fig. 1 shows the conductor b, which is passed through the flange a. According to the capacitor principle, the even electrical stress on the dielectric air is caused by a series of concentric cylinders c, d, which are separated by pieces of insulating material e. It is recommended that the isolator be shaped so that flashover occurs outside and not inside the isolator.



       2 shows an arrangement where the insulating pieces e are designed as cylinders. Here, too, air is electrically stressed insulation material, respectively. Dielectric.

 

Claims (1)

PATENTANSPRUCH: Durchführungsisolator nach dem Konden- satorprinzip, dadurch gekennzeichnet, dass als Dielektrikum Luft oder ein anderes Gras mit kleiner Dielektrizitätskonstante verwendet ist. PATENT CLAIM: Bushing insulator according to the capacitor principle, characterized in that air or another grass with a low dielectric constant is used as the dielectric.
CH87281D 1919-05-31 1919-05-31 Bushing insulator based on the capacitor principle. CH87281A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH87281T 1919-05-31

Publications (1)

Publication Number Publication Date
CH87281A true CH87281A (en) 1920-11-16

Family

ID=4344030

Family Applications (1)

Application Number Title Priority Date Filing Date
CH87281D CH87281A (en) 1919-05-31 1919-05-31 Bushing insulator based on the capacitor principle.

Country Status (1)

Country Link
CH (1) CH87281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369666A1 (en) * 1976-10-29 1978-05-26 Tokyo Shibaura Electric Co Gas filled insulator bushing - has inner conductor and has outer earthed screen and intermediate potential cylinder between them

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369666A1 (en) * 1976-10-29 1978-05-26 Tokyo Shibaura Electric Co Gas filled insulator bushing - has inner conductor and has outer earthed screen and intermediate potential cylinder between them

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