EP2047485B1 - Dispositif de blindage électrique d'une ligne à haute tension - Google Patents

Dispositif de blindage électrique d'une ligne à haute tension Download PDF

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Publication number
EP2047485B1
EP2047485B1 EP07787927.8A EP07787927A EP2047485B1 EP 2047485 B1 EP2047485 B1 EP 2047485B1 EP 07787927 A EP07787927 A EP 07787927A EP 2047485 B1 EP2047485 B1 EP 2047485B1
Authority
EP
European Patent Office
Prior art keywords
screening apparatus
bushing
electrical
output
shield
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.)
Not-in-force
Application number
EP07787927.8A
Other languages
German (de)
English (en)
Other versions
EP2047485A1 (fr
Inventor
Jens Hoppe
Dietmar Jahnel
Johann Schlager
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2047485A1 publication Critical patent/EP2047485A1/fr
Application granted granted Critical
Publication of EP2047485B1 publication Critical patent/EP2047485B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
    • 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

Definitions

  • the invention relates to an electrical shielding device for a nearly rectangular bushing output of a high voltage line in an outer wall of a high voltage electrical device having an electrically conductive Ableungsinneres and an arcuate circular segment with two legs, which can be arranged around the nearly rectangular feedthrough output such that a leg almost parallel to the implementation and the other leg are aligned almost parallel to the outer wall.
  • Such a shielding is from the US 6,218,627 B1 already known.
  • the shielding device disclosed therein has two legs, which span a right angle with each other and are connected to one another via an arcuate circular segment.
  • the shielding element serves to reduce the electric field strength at the feedthrough output of a high-voltage device.
  • shielding wire is arranged around the feed-through output within the electrical high-voltage device.
  • This shielding wire is conventionally provided with an electrically conductive shielding interior which is electrically insulated on the surface, in particular by paper insulation.
  • shielding rings of a different shape are also known in the prior art, which have a rectangular electrically conductive shielding interior.
  • a high voltage feedthrough comprising a high voltage conductor in an insulator provided with insulating screens, having at one end a flange through which the high voltage conductor passes, wherein an insulation medium is provided between the flange and the high voltage conductor.
  • a shielding electrode is disposed around the insulator extending from the flange in the axial direction over part of the length of the insulator, the number of insulator screens per unit length being different in the individual sections.
  • the shield interior comprises an outer insulating layer enclosing the shielding interior and an at least barrier barrier system is provided for additional electrical insulation.
  • the shield has an arcuate circular segment designed to be mounted on a nearly rectangular design of the bushing. This ensures that the field pattern of the electric field is changed in the vicinity of the almost rectangular bushing output.
  • the field pattern of the electric field in the vicinity of corners and edges is highly complex and insufficiently secured by electrical shielding heretofore.
  • electrical shielding heretofore.
  • the inventive design of the electrical shield as arcuate circular segment with two elongated legs affects the course of the electric field in the vicinity of the bushing output in the way that the housing of the electrical high voltage device is completely shielded in the region of the feedthrough output.
  • the shield is shielded by an additional barrier system.
  • barrier systems already used in the cable bushings are also combined as a shielding barrier system with the shield according to the invention around the output of the implementation.
  • an effective electrical shielding of the corners and edges of the feed-through output to the outer wall of the electrical high-voltage device is ensured due to the possible high transmission voltages.
  • the electrical shield is positioned around the nearly rectangular feed-through output so that the radius of the arcuate circular segment extends through the corner of the nearly rectangular feedthrough output.
  • the shield is positioned symmetrically to the two edges of the almost rectangular bushing output.
  • the shape of the shield corresponds to an idealized field profile of the electric field in the vicinity of the feedthrough output.
  • the radius of the arcuate circular segment of the shield is smaller than four times the length of the legs. As a result, an all-round shielding of the corresponding corners and edges of the bushing output is guaranteed. Also, the radius is preferably a length of 10 mm to 500 mm, preferably 100 mm.
  • the barrier system with the barrier system of the implementation and / or the barrier system of the electrical high voltage device is mechanically connected.
  • the shield is formed around the lead-through output as a circumferential one-piece element. As a result, a cost-effective production of the shield and a dimensionally stable effect of the shield given.
  • individual shield segments are arranged in a circle around the lead-through output. The same applies to a corresponding barrier system, for additional shielding.
  • the shield is connected to the electrical ground.
  • the shield is at least partially made of conductive material, which is partially interrupted by non-conductive material.
  • the shield consists of a carrier material which is at least partially encased with a conductive layer, in particular coated or encased.
  • the figure Fig. 1 shows a schematic sectional view of the basic structure of the shield 10 according to the invention.
  • the dashed line represents the axis of rotation of the shield 10.
  • the shield inner 11 is, at least to the interior of the electrical high voltage device, insulated with an additional insulating layer 12. Traditionally, this is a paper insulation.
  • the shield 10 is an isolation medium, in particular an oil, within the electrical high voltage device available.
  • the shield 10, which is arranged at approximately a right angle around a feedthrough output (not shown), has two limbs 23, which are part of the arcuate circular segment.
  • the leg length is defined with respect to the transition of the arcuate circular segment to the respective straight legs 23.
  • the radius 22 defines the shape of the arcuate circular segment of the shield 10 and passes through the unillustrated corner of the line feedthrough output 21 (not shown).
  • the figure Fig. 2 shows a shield 10 with an additional barrier system 14 to a feedthrough output 21 for a high voltage electrical line.
  • the dashed line represents the axis of rotation of the shield 10, the circular passage 15 and the circular outlet 16.
  • a discharge 16 is arranged with a paper insulation 17, which is an electrical connection of the high voltage device with an external high voltage network, in particular a HVDC Network, allows.
  • the shield 10 is arranged such that a symmetrical about the vertex of the almost rectangular bushing outlet 21 coverage of both angles of the passage 15 and the boiler wall 20 is ensured.
  • the additional barrier system 14 around the shield 10, in conjunction with the circulating oil within the high voltage electrical appliance and feedthrough 15, provides optimum electrical shielding of the corners of the feedthrough output 21.
  • the barrier system 14 can shield the shield 10 within the feedthrough 15 and be connected to the electrical high voltage device, so that a continuous barrier system 14 is given from the lead-out 21 to the implementation 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Cable Accessories (AREA)

Claims (12)

  1. Dispositif (10) de blindage électrique pour une sortie (21)à peu près à angle droit d'une traversée (15) d'une ligne de haute tension dans une paroi (20) extérieure d'un appareil électrique de haute tension, qui a un intérieur (11) de blindage, conducteur de l'électricité et un segment de cercle en forme d'arc ayant deux branches (23), qui peut être disposé autour de la sortie (21) de traversée à peu près à angle droit de manière à ce qu'une branche (23) soit dirigée à peu près parallèlement à la traversée (15) et de manière à ce que l'autre branche (23) soit dirigée à peu près parallèlement à la paroi (20) extérieure,
    caractérisé en ce que l'intérieur du blindage comprend une couche (12)isolante entourant l'intérieur (11) du blindage et il est prévu au moins un système (14) de barrière consistant en une barrière pour l'isolation électrique supplémentaire.
  2. Dispositif de blindage suivant la revendication 1, caractérisé en ce que l'intérieur (11) du blindage a une section transversale tubulaire.
  3. Dispositif de blindage suivant l'une des revendications 1 à 2, caractérisé en ce que sa position par rapport à la sortie (21) de la traversée à peu près à angle droit peut être choisie de manière à ce que les rayons (22) du segment de cercle en forme d'arc passent par l'angle à peu près à angle droit de la sortie (21) de traversée.
  4. Dispositif de blindage suivant l'une des revendications 1 à 3, caractérisé en ce que sa forme correspond à un tracé idéalisé du champ électrique de l'environnement de la sortie (21) de traversée à peu près angle droit.
  5. Dispositif de blindage suivant l'une des revendications 1 à 4, caractérisé en ce que le rayon (22) du segment de cercle en forme d'arc est plus petit que le quadruple de la longueur de la branche (23).
  6. Dispositif de blindage suivant l'une des revendications 1 à 5, caractérisé en ce que le rayon (22) du segment de cercle en forme d'arc est compris entre 10 mm et 500 mm, en étant de préférence de 100 mm.
  7. Dispositif de blindage suivant la revendication 1 à 6, caractérisé en ce que le système (14) de barrière peut être relié à un système (18) de barrière disposé à l'intérieur d'une traversée (15) et/ou à l'intérieur de la paroi (20) extérieure de l'appareil de haute tension.
  8. Dispositif de blindage suivant l'une des revendications 1 à 7, caractérisé par un dispositif de fixation au moyen duquel il peut être relié à la paroi (20) extérieure et/ou à la traversée (15)
  9. Dispositif de blindage suivant l'une des revendications 1 à 8, caractérisé en ce qu'il est constitué de segments, qui peuvent être disposés à des intervalles déterminées autour de la sortie (21) de traversée.
  10. Dispositif de blindage suivant l'une des revendications 1 à 9, caractérisé en ce que l'intérieur (11) du blindage est relié à la masse électrique et ainsi mis à la terre.
  11. Dispositif de blindage sur l'une des revendications 1 à 10, caractérisé en ce que celui-ci est au moins en partie en un matériau conducteur, qui peut être interrompu en partie par du matériau non conducteur.
  12. Dispositif de blindage suivant l'une des revendications 1 à 11, caractérisé en ce que celui-ci est en un matériau non conducteur, qui est entouré au moins en partie d'une couche conductrice.
EP07787927.8A 2006-08-03 2007-07-26 Dispositif de blindage électrique d'une ligne à haute tension Not-in-force EP2047485B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006038221A DE102006038221B4 (de) 2006-08-03 2006-08-03 Vorrichtung zur elektrischen Abschirmung einer Hochspannungsdurchführung
PCT/EP2007/057701 WO2008015150A1 (fr) 2006-08-03 2007-07-26 Dispositif de blindage électrique d'une ligne à haute tension

Publications (2)

Publication Number Publication Date
EP2047485A1 EP2047485A1 (fr) 2009-04-15
EP2047485B1 true EP2047485B1 (fr) 2016-08-31

Family

ID=38656696

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07787927.8A Not-in-force EP2047485B1 (fr) 2006-08-03 2007-07-26 Dispositif de blindage électrique d'une ligne à haute tension

Country Status (6)

Country Link
US (1) US8124878B2 (fr)
EP (1) EP2047485B1 (fr)
CN (1) CN101501789B (fr)
BR (1) BRPI0714621B1 (fr)
DE (1) DE102006038221B4 (fr)
WO (1) WO2008015150A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2591481B1 (fr) * 2010-07-08 2018-10-31 ABB Research Ltd. Dispositif de blindage pour haute tension et système le comprenant
EP2846336B1 (fr) * 2013-09-10 2016-05-04 Siemens Aktiengesellschaft Connexion d'au moins quatre conducteurs électriques
DE102015224568A1 (de) * 2015-12-08 2017-06-08 Siemens Aktiengesellschaft Vorrichtung zur elektrischen Verbindung von wenigstens vier elektrischen Leitern
CN105977887B (zh) * 2016-06-01 2018-10-23 中国西电电气股份有限公司 一种充气式特高压直流穿墙套管
WO2019219194A1 (fr) * 2018-05-17 2019-11-21 Abb Schweiz Ag Blindage d'équipement à haute tension

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218627B1 (en) * 1998-02-04 2001-04-17 Hitachi, Ltd. Bushing

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986595A (en) * 1958-10-15 1961-05-30 Lapp Insulator Company Inc Post type insulator and method of making the same
US3173115A (en) 1962-10-26 1965-03-09 Westinghouse Electric Corp High voltage potential transformer
CH413030A (de) * 1963-01-15 1966-05-15 Inst Prueffeld Elekt Hochspannungsdurchführung in einem elektrischen Apparat, insbesondere in einem flüssigkeitsarmen Transformator
CH413020A (de) * 1963-12-23 1966-05-15 Gretag Ag Verfahren und Vorrichtung zur Herstellung von elektronischen Bausteinen
US3673305A (en) * 1970-11-04 1972-06-27 Detroit Edison Co Capacitively graded modular pothead for h-v cable
JPS5354798A (en) * 1976-10-29 1978-05-18 Toshiba Corp Bushing
US4296274A (en) * 1980-07-11 1981-10-20 The United States Of America As Represented By The United States Department Of Energy High voltage bushing having weathershed and surrounding stress relief collar
DD246402A1 (de) * 1986-01-13 1987-06-03 Transform Roentgen Matern Veb Elektrodenanordnung fuer eine hochspannungszufuehrung
US5130495A (en) * 1991-01-24 1992-07-14 G & W Electric Company Cable terminator
US6294729B1 (en) * 1997-10-31 2001-09-25 Laird Technologies Clad polymer EMI shield
DE19844409C2 (de) * 1998-09-28 2000-12-21 Hochspannungsgeraete Porz Gmbh Hochspannungs-Durchführung
US6346677B1 (en) * 1999-09-08 2002-02-12 Electro Composites, Inc. High-voltage bushing provided with external shields
EP1577904B1 (fr) * 2004-03-15 2012-02-22 ABB Research Ltd. Traversée haute tension avec élément pour les contrôle du champ électrique

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6218627B1 (en) * 1998-02-04 2001-04-17 Hitachi, Ltd. Bushing

Also Published As

Publication number Publication date
CN101501789A (zh) 2009-08-05
DE102006038221A1 (de) 2008-02-07
CN101501789B (zh) 2012-01-04
US8124878B2 (en) 2012-02-28
WO2008015150A1 (fr) 2008-02-07
BRPI0714621B1 (pt) 2018-05-22
EP2047485A1 (fr) 2009-04-15
US20100065304A1 (en) 2010-03-18
DE102006038221B4 (de) 2009-03-26
BRPI0714621A2 (pt) 2013-04-30

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