DE478135C - Electrical bushing insulator with built-in current transformer - Google Patents
Electrical bushing insulator with built-in current transformerInfo
- 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
Links
- 239000012212 insulator Substances 0.000 title claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase AC
- H01F38/28—Current transformers
- H01F38/30—Constructions
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)
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)
| 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 |
-
0
- DE DEM91697D patent/DE478135C/en not_active Expired
Cited By (1)
| 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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