DE478135C - Electrical bushing insulator with built-in current transformer - Google Patents

Electrical bushing insulator with built-in current transformer

Info

Publication number
DE478135C
DE478135C DEM91697D DEM0091697D DE478135C DE 478135 C DE478135 C DE 478135C DE M91697 D DEM91697 D DE M91697D DE M0091697 D DEM0091697 D DE M0091697D DE 478135 C DE478135 C DE 478135C
Authority
DE
Germany
Prior art keywords
current transformer
bushing
bushing insulator
built
insulator
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
DEM91697D
Other languages
German (de)
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Publication date
Priority to DEM91697D priority Critical patent/DE478135C/en
Application granted granted Critical
Publication of DE478135C publication Critical patent/DE478135C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20Instruments transformers
    • H01F38/22Instruments transformers for single phase ac
    • H01F38/28Current transformers
    • H01F38/30Constructions

Landscapes

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

Description

Elektrischer Durchführungsisolator mit eingebautem Stromwandler Durchführungsisolatoren mit außerhalb -des Isolierkörpers, meistens ober- oder unterhalb der geerdeten Durchführungsfassung aufgebautem, die Sekundärwicklung tragendem Stromwandlereisen sind bekannt. Die Eisenabmessungen für- sölche sögenannten Durchführungs-Einstabstromwandler fallen sehr groß aus, besonders für die verhältnismäßig geringen Stromstärken, wie sie sich in Höchstspannungsanlagen ergeben. Durch diese Anordnung des Stromwandlereisens wird die Länge der Durchführung bedeutend vergrößert. Außer der Verteuerung führt diese Vergrößerung besonders bei Schalter- und Transformatorenkonstruktionen zu Schwierigkeiten.Electrical bushing insulator with built-in current transformer Bushing insulators with outside of the insulator, mostly above or below the earthed bushing built-up current transformer iron carrying the secondary winding are known. the Iron dimensions for the so-called bushing single-rod current transformers fall very large, especially for the relatively low currents like them arise in high voltage systems. Through this arrangement of the current transformer iron the length of the implementation is significantly increased. Besides the rise in price leads this increase especially in switch and transformer constructions Trouble.

Diese Mängel sind bei dem Stromwandler nach vorliegender Erfindung dadurch behoben, daß das Stromwandlereisen samt Sekundärwicklung im Innern eines Durchführungsisolators angeordnet ist. Dabei kann, um eine möglichst günstige Beanspruchung des Isoliermaterials zu erzielen, das Stromwandlereisen als Zylinderelektrode, und zwar symmetrisch um den Durchführungsleiter herum und ebenso in axialer Richtung symmetrisch zu der die Durchführung tragenden geerdeten Fassung, angeordnet und mit letzterer leitend verbunden sein.These shortcomings are inherent in the current transformer of the present invention fixed by the fact that the current transformer iron including the secondary winding inside a Bushing insulator is arranged. In doing so, it is possible to achieve the most favorable stress possible to achieve the insulating material, the current transformer iron as a cylinder electrode, and symmetrically around the lead-through conductor and also in the axial direction symmetrically to the grounded socket carrying the bushing, arranged and be conductively connected to the latter.

Die Zeichnung stellt eine beispielsweise Ausführungsform des Erfindungsgegenstandes dar. Darin bedeuten i und z röhrenförmige, aus festem Isoliermaterial hergestellte Hohlkörper, welche mittels Fassungsringe 3, unter Verwendung von Dichtungsringen q., zusammengeklemmt werden. Eine Fassung 5, welche das Stromwandlereisen 6 trägt und mit letzterem leitend verbunden ist, bildet mit den Fassungsringen 3 die geerdete Befestigungsfassung der Durchführung. Das Stromwandlereisen 6 überragt in axialer Richtung der Durchführung die Fassungsringe 3 zu beiden Seiten und übernimmt so die Wirkung einer vorgeschobenen Innenelektrode, welche bekanntlich durch ihre Schirmwirkung das Glimmen und die Gleitfunkenbildung an den Fassungsrändern unterdrückt. Um das Stromwandlereisen ist die Sekundärwicklung 7 gelegt, deren Enden 7' durch den einen Dichtungsring q. hindurch aus dem Innern des Durchführungsisolators herausgeführt sind. Die Sekundärwicklung 7 ist gegen den Durchführungsleiter 9 durch einen mit der Fassung 5 leitend verbundenen Metallzylinder 8 elektrisch abgeschirmt, um die Wicklung 7 vor Zerstörung durch Ladeströme und den Übertritt der Hochspannung zu schützen.The drawing represents an example embodiment of the subject matter of the invention Here, i and z mean tubular, made of solid insulating material Hollow body, which by means of mounting rings 3, using sealing rings q., to be clamped together. A socket 5 which carries the current transformer iron 6 and is conductively connected to the latter, forms with the mounting rings 3 the grounded Fastening socket of the bushing. The current transformer iron 6 protrudes axially Direction of implementation, the mounting rings 3 on both sides and takes over the effect of an advanced inner electrode, which is known by its shielding effect the glow and the formation of sliding sparks at the frame edges are suppressed. To that Current transformer iron is placed the secondary winding 7, the ends 7 'through the one Sealing ring q. passed through from the interior of the bushing insulator are. The secondary winding 7 is against the lead-through conductor 9 by a the version 5 conductively connected metal cylinder 8 electrically shielded to the Winding 7 from destruction by charging currents and the crossing of the high voltage protection.

Das Innere des Durchführungsisolators ist mit einem plastischen oder flüssigen Isoliermaterial io, z. B. C51, gefüllt. Ein den Leiter 9 umgebendes Isolierrohr ix dient zur Erhöhung der Durchschlagsfestigkeit und ist nur bei Höchstspannungen nötig. Der Raum zwischen dem Rohr i= und dem Durchführungsleiter 9 ist ebenfalls mit dem Isoliermittel io ausgefüllt,The inside of the bushing insulator is covered with a plastic or liquid insulating material io, e.g. B. C51 filled. An insulating tube surrounding the conductor 9 ix is used to increase the dielectric strength and is only available at very high voltages necessary. The space between the tube i = and the lead-through conductor 9 is also filled with the isolating agent OK,

Claims (2)

PATENTANSPRÜCHE: i. Elektrischer Durchführungsisolator mit eingebautem Stromwandler, dadurch gekennzeichnet, daß das die Sekundärwicklung tragende, im Innern des Durchführungsisolators angeordnete, als Zylinder ausgebildete aktive Stromwandlereisen konzentrisch zum stabförmigen Durchführungsleiter und Durchführungsisolator angeordnet ist. PATENT CLAIMS: i. Electrical bushing insulator with built-in Current transformer, characterized in that the secondary winding, im Active cylinders arranged inside the bushing insulator Current transformer iron concentric to the rod-shaped bushing conductor and bushing insulator is arranged. 2. Durchführungsisolator nach Anspruch i, dadurch gekennzeichnet, daß das Stromwandlereisen die außerhalb liegende Durchführungsfassung in axialer Richtung beidseitig überragt, um die Glimm- und Gleitfunkenbildung zu unterdrücken.2. Bushing insulator according to claim i, characterized in that that the current transformer iron the bushing outside lying in the axial Direction protrudes on both sides in order to suppress the formation of glow and sliding sparks.
DEM91697D Electrical bushing insulator with built-in current transformer Expired DE478135C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM91697D DE478135C (en) Electrical bushing insulator with built-in current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM91697D DE478135C (en) Electrical bushing insulator with built-in current transformer

Publications (1)

Publication Number Publication Date
DE478135C true DE478135C (en) 1929-06-21

Family

ID=7321905

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM91697D Expired DE478135C (en) Electrical bushing insulator with built-in current transformer

Country Status (1)

Country Link
DE (1) DE478135C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2720689A1 (en) * 1977-05-07 1978-11-09 Calor Emag Elektrizitaets Ag Single conductor bushing current transformer with insulating liq. - has solid insulating tube around conductor near constriction with ion barrier at end and tube centred by spacers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2720689A1 (en) * 1977-05-07 1978-11-09 Calor Emag Elektrizitaets Ag Single conductor bushing current transformer with insulating liq. - has solid insulating tube around conductor near constriction with ion barrier at end and tube centred by spacers

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