EP0032690B1 - Traversée haute-tension isolée aux feuilles comportant des insertions de contrôle du potentiel - Google Patents

Traversée haute-tension isolée aux feuilles comportant des insertions de contrôle du potentiel Download PDF

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Publication number
EP0032690B1
EP0032690B1 EP81100119A EP81100119A EP0032690B1 EP 0032690 B1 EP0032690 B1 EP 0032690B1 EP 81100119 A EP81100119 A EP 81100119A EP 81100119 A EP81100119 A EP 81100119A EP 0032690 B1 EP0032690 B1 EP 0032690B1
Authority
EP
European Patent Office
Prior art keywords
potential control
insulating
foils
control inserts
wound
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
EP81100119A
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German (de)
English (en)
Other versions
EP0032690A2 (fr
EP0032690A3 (en
Inventor
Günther Matthäus
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 AG
Original Assignee
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6092430&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0032690(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT81100119T priority Critical patent/ATE5034T1/de
Publication of EP0032690A2 publication Critical patent/EP0032690A2/fr
Publication of EP0032690A3 publication Critical patent/EP0032690A3/de
Application granted granted Critical
Publication of EP0032690B1 publication Critical patent/EP0032690B1/fr
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/28—Capacitor type

Definitions

  • the invention relates to a high-voltage bushing with conductor parts at different electrical potentials and with an insulation body arranged between these conductor parts, which is wound from insulating foils, contains thin, provided with a knot, electrically conductive foils as potential control inserts and is impregnated with a gaseous insulating medium.
  • a high-voltage bushing is known from FR-E-44 238 in connection with FR-A-742 448.
  • connection points of electrical devices with high operating voltages of, for example, 100 kV and higher high-voltage parts of these devices must be passed through parts that are at ground potential in such a way that arcing between these parts can be avoided with certainty.
  • a corresponding connection point is, for example, the end closure of a high-voltage cable or the connection of a high-voltage transformer.
  • Corresponding insulated bushings may also be required for converters and switchgear.
  • the electrically conductive parts in the high-voltage bushings which are at high voltage potential, are surrounded by special bushing insulators, the geometric dimensions of which are determined, among other things, by the required electrical strength values.
  • a high-voltage bushing is also known, the insulating body of which is wound from trapezoidal insulating films made of paper. These insulating foils can be provided with embossed bands on their edges. In addition, potential control inserts, which also have an embossing, are also wrapped in the insulation body.
  • the object of the invention is to improve this known insulation body of a high-voltage bushing so that it can also be used for devices with high operating voltages and at the same time a sufficient impregnation with an insulating medium, in particular on its potential control inserts, is ensured.
  • the high-voltage bushing it can advantageously be ensured, on the one hand, that cavities formed on the potential control inserts during the winding process, in particular on the edges, are always only filled with the insulating medium, since between the nubbed control inserts and the respectively adjacent insulating foils, which are also embossed, there is sufficient gas permeability. This gas permeability is ensured by the predetermined height of the knobs.
  • the wound insulation body also has sufficient mechanical strength, ie slipping on the central conductor serving as a winding mandrel when the high-voltage bushing is arranged vertically, can be avoided.
  • FIG. 1 schematically illustrates a high-voltage bushing.
  • 2 schematically shows a part of this high-voltage bushing designed according to the invention.
  • the bushing contains a central conductor 2, which is, for example, a copper tube and has a high-voltage potential of over 200 kV at 50 Hz.
  • the central conductor preferably consists of a stainless steel or aluminum tube.
  • An insulating body 3 is arranged concentrically around the conductor, which has two beveled, conical jacket-shaped side surfaces 4 and 5 and between them a cylindrical jacket surface 6.
  • This insulating body is wound from insulating foils made of a plastic material with a high dielectric constant, such as polypropylene foils.
  • capacitor inserts 7 to 10 are provided concentrically to one another and isolated from one another, which are indicated in the figure by lines parallel to the central conductor 2.
  • These capacitor inserts which are used for potential control and are especially designed in accordance with the invention, are expediently arranged in such a way that an approximately linear potential gradient can form from the inside to the outside along the bevelled side surfaces 4 and 5 of the insulation body 3.
  • This approximately linear potential characteristic on the side surfaces 4 and 5 can be achieved in a known manner by a suitable choice of the radial distances between the individual capacitor inserts and by their axial lengths (cf. for example US Pat. No. 3,462,545).
  • the innermost conductor near and designated 8 and 9 capacitor deposits are, for example on high-voltage potential, while the outermost capacitor pad 10 on the jacket '- surface 6 is with an electrical terminal 11 at ground potential.
  • Suitable media include gases such as sulfur hexafluoride (SF 6 ) or nitrogen (N 2 ). According to the exemplary embodiment according to the figure, an SF 6 limitation of the insulation body is assumed.
  • the insulation body can also be made of a cryogenic medium such as e.g. be impregnated with helium (cf. DE-A-2 327 629).
  • the insulation body 3 of a high-voltage bushing contains, according to the section 12 shown in FIG. 2 as a longitudinal section, thin potential control inserts which are provided with a knot and of which only one capacitor insert, designated 10, is illustrated in the figure.
  • the capacitor control inserts can be made, for example, from a thin foil made of a metal such as aluminum, as is generally known from GB-A-991 546 for smooth foils. Films made of a plastic such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP) or polycarbonate (PC) are also suitable as potential control deposits. According to the invention, these tax deposits contain between 300 and 700, preferably about 500 knobs per cm 2.
  • the tax deposits should each have a total thickness that is at least 50% greater than the thickness of a corresponding one Foil without knobs.
  • an 18 1 1m aluminum foil can be used, which has a total thickness of about 40 ⁇ m with the knobs. It is much easier to handle such a nubbed film when winding the insulating body 3 than with a smooth film, since the nubbed film is mechanically more stable.
  • the insulating body is also wound from smooth insulating foils 14, which are made of polypropylene or polyethylene, for example. Between each two layers of smooth insulation foils 14 there is also a layer of embossed insulation foils 15. These foils are also provided with a knot, for example containing about 500 knobs / cm 2 .
  • insulating sheets 15 of the same type are provided on both sides of the potential control insert, capacitor insert 10.
  • the cavities formed by the nubbing of the potential control insert (capacitor insert 10) and the adjacent insulation foils 15, some of which are denoted by 16 in the figure are relatively easy to evacuate after the winding process of the insulation body and to fill them with the insulating medium.
  • the conductor part of the high-voltage bushing which is at high voltage potential is arranged centrally and that the conductor parts which are at earth potential surround it, the insulation body being provided between these conductor parts.
  • the high-voltage bushing according to the invention is also suitable for electrical devices in which high-voltage potential is present on the outside and earth potential on the inside.

Claims (4)

1. Traversée haute tension comportant des éléments conducteurs portés à des potentiels électriques différents, ainsi qu'un corps isolant (3) disposé entre ces éléments conducteurs et enroulé à partir de feuilles isolantes (14), ledit corps isolant contenant, comme insertions de contrôle du potentiel (7 à 10), des feuilles minces, électriquement conductrices, pourvues d'un nopage et étant imbibées d'un milieu isolant gazeux, caractérisé par le fait que:
a) les insertions de contrôle du potentiel (7 à 10) comportent 300 à 700, de préférence 500 nopes par centimètre carré;
b) les insertions de contrôle du potentiel (7 à 10) présentent chacune une épaisseur totale qui est d'au moins 50% supérieure à l'épaisseur d'une feuille correspondante sans nopage, et
c) les couches faites avec des feuilles isolantes (14) sont enroulées pour une partie à partir de feuilles de matière plastique lisse et, pour une autre partie, à partir de feuilles de matière plastique (15) avec nopage, au moins les couches qui sont voisines des insertions de contrôle du potentiel (7 à 10) étant constituées par des feuilles de matière plastique (15) pourvues de nopes.
2. Traversée haute tension selon la revendication 1, caractérisée par le fait que des feuilles d'aluminium gaufrées sont prévues comme insertions de contrôle du potentiel (7 à 10).
3. Traversée haute tension selon l'une des revendications 1 ou 2, caractérisée par le fait que l'on prévoit comme insertions de contrôle du potentiel (7 à 10) des feuilles double couche gaufrées, avec respectivement une couche en un matériau électriquement conducteur et une couche en un matériau isolant.
4. Traversée haute tension selon la revendication 3, caractérisée par le fait que l'on prévoit comme feuilles double couche des feuilles en un matériau constitué par de la matière plastique revêtue d'aluminium.
EP81100119A 1980-01-18 1981-01-09 Traversée haute-tension isolée aux feuilles comportant des insertions de contrôle du potentiel Expired EP0032690B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100119T ATE5034T1 (de) 1980-01-18 1981-01-09 Folienisolierte hochspannungsdurchfuehrung mit potentialsteuereinlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803001810 DE3001810A1 (de) 1980-01-18 1980-01-18 Folienisolierte hochspannungsdurchfuehrung mit potentialsteuereinlagen
DE3001810 1980-01-18

Publications (3)

Publication Number Publication Date
EP0032690A2 EP0032690A2 (fr) 1981-07-29
EP0032690A3 EP0032690A3 (en) 1981-11-11
EP0032690B1 true EP0032690B1 (fr) 1983-10-12

Family

ID=6092430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100119A Expired EP0032690B1 (fr) 1980-01-18 1981-01-09 Traversée haute-tension isolée aux feuilles comportant des insertions de contrôle du potentiel

Country Status (4)

Country Link
US (1) US4387266A (fr)
EP (1) EP0032690B1 (fr)
AT (1) ATE5034T1 (fr)
DE (1) DE3001810A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281767A (en) * 1992-10-30 1994-01-25 A.B. Chance Company Reduced mechanical stress bushing and conductor rod assembly
DE19644482C1 (de) * 1996-10-25 1998-03-05 Siemens Ag Isolatoranordnung
US5968210A (en) * 1997-11-12 1999-10-19 Pacesetter, Inc. Electrolytic capacitor and method of manufacture
DE19856123C2 (de) * 1998-12-04 2000-12-07 Siemens Ag Hohlisolator
DE10048838B4 (de) * 2000-09-30 2008-09-18 Abb Ag Kapazitive Steuerung mindestens einer Vakuum-Schaltkammer
US6951987B1 (en) 2003-01-31 2005-10-04 United States Of America As Represented By The Secretary Of The Navy High voltage bushing
EP1939897A1 (fr) * 2006-12-28 2008-07-02 ABB Research Ltd. Structure isolante dotée d'écrans formant un champ électrique
ATE509353T1 (de) 2008-10-27 2011-05-15 Abb Research Ltd Hochspannungsdurchführung
EP2431982B1 (fr) * 2010-09-21 2014-11-26 ABB Technology AG Ligne enfichable et installation haute tension dotée d'une telle ligne
US8963015B2 (en) * 2011-01-18 2015-02-24 Fisher Controls International Llc Capacitor coupled cable shield feedthrough
KR101720237B1 (ko) * 2015-05-26 2017-04-10 주식회사 효성 콘덴서 부싱 및 그 제조방법
US11146053B2 (en) * 2016-01-29 2021-10-12 Power Hv Inc. Bushing for a transformer
DE102018201160A1 (de) * 2018-01-25 2019-07-25 Pfisterer Kontaktsysteme Gmbh Hochspannungsdurchführung, elektrisches Gerät mit Hochspannungsdurchführung und Verfahren zur Herstellung des elektrischen Gerätes
DE102018215274A1 (de) * 2018-09-07 2020-03-12 Siemens Aktiengesellschaft Anordnung und Verfahren zur Potentialabsteuerung in der Hochspannungstechnik
US20230041971A1 (en) * 2019-12-30 2023-02-09 Hitachi Energy Switzerland Ag Condenser bushing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA871345A (en) * 1971-05-18 D. Rayno Glenn Capacitor roll section having roughened engaging surfaces to aid impregnation
CA871344A (en) * 1971-05-18 D. Sullivan Thomas Capacitor roll section having embossed surfaces to aid impregnation
FR742448A (fr) * 1933-03-07
FR44238E (fr) * 1933-08-17 1934-12-01 Jeumont Forges Const Elec Procédé de construction des bornes de traversée à haute tension
GB991546A (en) * 1960-03-25 1965-05-12 Reyrolle A & Co Ltd Improvements relating to high-voltage insulation and insulating components
US3462545A (en) * 1967-01-13 1969-08-19 Westinghouse Electric Corp Condenser bushing
GB1361079A (en) * 1972-10-10 1974-07-24 Ici Ltd Capacitors
DE2327629A1 (de) * 1973-05-30 1974-12-12 Siemens Ag Durchfuehrungsisolator fuer hochspannungseinrichtungen und verfahren zu seiner herstellung
US4228481A (en) * 1978-10-19 1980-10-14 General Electric Company Capacitor with embossed foil electrode

Also Published As

Publication number Publication date
US4387266A (en) 1983-06-07
EP0032690A2 (fr) 1981-07-29
EP0032690A3 (en) 1981-11-11
DE3001810A1 (de) 1981-07-23
ATE5034T1 (de) 1983-10-15

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