EP1913620B1 - Dispositif de maintien a proprietes de commande de champ - Google Patents

Dispositif de maintien a proprietes de commande de champ Download PDF

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Publication number
EP1913620B1
EP1913620B1 EP05777786.4A EP05777786A EP1913620B1 EP 1913620 B1 EP1913620 B1 EP 1913620B1 EP 05777786 A EP05777786 A EP 05777786A EP 1913620 B1 EP1913620 B1 EP 1913620B1
Authority
EP
European Patent Office
Prior art keywords
holding
interrupter
field control
holding apparatus
control element
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.)
Active
Application number
EP05777786.4A
Other languages
German (de)
English (en)
Other versions
EP1913620A1 (fr
Inventor
Karsten Freundt
Ralph LÖSER
Thomas Rädisch
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 EP1913620A1 publication Critical patent/EP1913620A1/fr
Application granted granted Critical
Publication of EP1913620B1 publication Critical patent/EP1913620B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6665—Details concerning the mounting or supporting of the individual vacuum bottles

Definitions

  • the present invention relates to a holding device for holding a switch tube in a support frame of a switch pole having a through-opening having a holding portion which is adapted to abut on an end face of the interrupter, a fixedly connected to the holding portion flange portion which surrounds the outer contour of the end face at least partially, and a support frame attachment for mounting the holding device to the support frame.
  • Such a holding device is from the US 2001/0025829 A1 already known.
  • the known holding device is adapted for holding a vacuum interrupter and has a circular-plate-shaped holding portion, which in operation rests against an end face of a vacuum interrupter, through which a shift rod movable in a longitudinal direction extends.
  • the holding portion is connected to a substantially perpendicular to this extending holding portion which extends in an installed position around the contour of the inserted vacuum interrupter and thus prevents slipping or slipping of the vacuum interrupter from or on the flat portion.
  • the prior art holding device on one side of a kind of hinge with which two halves of the holding device can be folded apart.
  • the holding device On a side opposite the hinge, the holding device further has a snap mechanism, so that a clamping of the inserted vacuum interrupter is made possible.
  • the holding device For attachment in a support frame, the holding device has retaining rails which can be inserted into complementary form the grooves of the support frame, so that the vacuum interrupter is held by the holding device on its drive side reliable and centered in the support frame, at the same time the mobility of the shift rod is made possible.
  • the prior art fixture adheres to the disadvantage that it is made of a non-conductive plastic, so that high electric fields or leakage currents occur at acute or angular portions of the interrupter which are subjected to a high-voltage potential.
  • the switches equipped with the known holding devices therefore either have a pole center distance that takes account of these high electric field strengths and thus have a large-area design or are limited to correspondingly reduced operating parameters with regard to the permitted operating voltages.
  • the holding device disclosed therein comprises a field control element for shunting an electric field along a gap between the holding device and a vacuum interrupter.
  • Object of the present invention is therefore to provide a holding device of the type mentioned above, with the same operating voltage of the switch, a more compact design of a switch or a constant design, an increased operating voltage can be brought about, which has such a holding device.
  • the invention achieves this object by means of a field control element for shunting off an electric field, which during the operation of the interrupter is conductively connectable to a component of the interrupter which is at high voltage potential during operation of the interrupter, as well as centering means, which are connected to the holding portion and facing the through hole.
  • a field control element is provided in or on the holding device, which has the potential during operation, that is to say when a switching tube is applied with voltage, which is acted upon by the component of the interrupter which the field control element contacts.
  • the degradation of the electrical field produced during operation therefore no longer takes place, as in the prior art, between the high-voltage potential component of the interrupter and a grounded component of the switch, but between the field control element and the component.
  • the field control element is designed in such a way that tips, sharp edges or the like are avoided, at which high field intensities could arise. Since the field control element is encased with an insulating material, the high electric field is dissipated in the insulating material.
  • the holding device therefore not only has a holding function or possibly a centering effect, but also allows the generation of homogeneous field courses within the Wegerpols.
  • the risk of leakage currents, partial discharges or the like is therefore reduced according to the invention, so that more compact designs or higher operating voltages are made possible.
  • the configuration of the field control element is arbitrary, for example only embedded metallic network structures or electrically conductive surface layers of plastic, paint, metal or the like may be mentioned.
  • the centering means are provided for centering the holding device with respect to a switching rod, which is fixedly connected to a moving contact of the interrupter and extends through the held by the holding device end face of the interrupter.
  • the flange portion advantageously extends at an angle and in particular at right angles to the preferably annular disk-shaped holding section.
  • the flange section encloses the contour of the end face of the interrupter.
  • the holding section is therefore configured in the form of an annular disc, with the flange section extending on the outer contour of the annular section.
  • the flange section projects laterally beyond the interrupter tube and in this way prevents the interrupter from sliding or slipping off or on the holding section.
  • the flange portion may be closed around the holding portion.
  • the flange portion extends only at certain portions of the outer contour of the holding portion.
  • the flange portion consists of three evenly distributed over the circumference web portions.
  • the field control element extends in or on the flange portion. Due to the arrangement of the flange on the outside of the holding section has this to the components of the switch pole, which are at a ground potential, the smallest distance. For this reason, the Feldab capitaung preferably takes place between the arranged in the flange portion field control element and lying at ground potential components.
  • the field control element comprises a metallic core region of the flange portion, which is surrounded by an insulation.
  • the field control element is at least partially formed by a solid metallic core region of the flange section.
  • the flange portion can thus consist almost exclusively of the field control.
  • the core area is only of a thin-walled example Surrounded by insulation.
  • the thin-walled insulation is applied by injection molding, for example.
  • the field control element forms the holding section.
  • the holding section is at least part of the field control element, which either comprises a core region of the flange section or else has expediently curved flat wire nets which extend in a plastic part of the flange section.
  • the holding section is metallic and integrally formed with a likewise metallic core region of the flange section, wherein the core region is surrounded by insulation, so that the field control element is formed by the flange section and the core region.
  • the holding device formed in this way is particularly cost-effective, since the core region of the flange portion and the holding portion can be produced by conventional metal production methods, for example by metal die casting.
  • the core area is surrounded by a thin-walled plastic layer by injection molding.
  • the centering on mutually parallel headband which have a receiving groove, wherein threaded plates are arranged in the receiving groove through which extends a aligned on the through hole centering.
  • the centering means comprise simple retaining clips, which may for example be formed integrally with the retaining portion. The production of the centering is therefore inexpensive, as well as the subsequently necessary threaded plates are low in price.
  • the invention further relates to a switch pole with at least one holding device according to the invention.
  • the switch pole advantageously comprises a support frame, which consists for example of a mechanically stable plastic. Attached to the support frame are an input port and an out port, with a switching tube, such as a vacuum interrupter, extending between the input and output ports.
  • the vacuum interrupter has a hollow cylindrical housing made of an insulating material, which is connected at its two end faces with metallic covers.
  • the metallic covers of the end faces and the insulating housing form a vacuum-tight vacuum tube housing, with a fixed fixed contact pin extending through the metallic cover on a fixed contact side of the vacuum tube housing.
  • the fixed contact pin carries at its projecting into the vacuum tube housing end a fixed contact piece.
  • the holding device is adapted to receive the interrupter within the flange portion, which prevents lateral slipping of the vacuum interrupter with its front side of the holding portion. If the holding device is arranged on the drive side of the interrupter, the shift rod extends through the passage opening provided in the holding section, so that a longitudinal movement of the interrupter is made possible. If the holding device is arranged on the end face of the interrupter facing away from the drive side, the fixed contact pin projects through the passage opening. For fixing the holding device to the support frame, the holding device has appropriate support frame fastenings.
  • FIG. 1 shows a first embodiment of a switch pole 1 according to the invention in a perspective view.
  • the switch pole 1 has a mechanically fixed support frame 2, on which a pole head section 3b of an input, connection 3 is firmly screwed. This purpose is served by a transversely extending fastening web 4 with mounting holes for screwing the pole head section 3b.
  • the fastening web 4 further has a through-opening 5, through which a screwing of a vacuum interrupter 6 as a interrupter at the input connection 5 is made possible.
  • the vacuum interrupter 6 consists of a hollow cylindrical ceramic housing 7, which is composed of two parts which are interconnected in the middle of the ceramic housing with the interposition of an intermediate flange. At the end faces, the ceramic housing 7 by metallic covers, which in FIG.
  • a holding device 9 is provided which has a support frame attachment 10, with which the holding device 9 is firmly anchored in the support frame 2.
  • Another holding device 9 is arranged on the end face of the vacuum interrupter 6, which faces the fastening web 4.
  • the shift rod is connected via a suitable lever mechanism 11 with a drive that generates the necessary kinetic energy for switching.
  • FIG. 2 shows a further embodiment of a switch pole 1 according to the invention, the same support frame 2, as the embodiment according to FIG. 1 , having.
  • the insulation is reinforced by additional insulating covers 12 which can be latched in functional figuratively not shown locking grooves.
  • FIG. 3 shows the embodiment according to FIG. 2 in a cross-sectional view.
  • the input terminal 3 next to the in FIG. 1 Polhead portion 3b further comprises a longitudinal portion 3a.
  • the pole head portion 3b is bolted to the fixed contact pin 13 of the vacuum interrupter 6, while the longitudinal portion 3a attached to the pole head portion 3b, for example, is screwed.
  • the jaw width of the Wennerpols ie the distance of a conductor attached to the input terminal 3 of a conductor attached to the outgoing terminal 8, adjustable.
  • a the fixed contact pin 13 opposite shift rod 14 is connected via a flexible current band 15 to the outgoing connector 8.
  • a pot-shaped insulation 16 is provided, via which the shift rod 14 is connected to the lever mechanism 11.
  • the shift rod 14 extends through an end face 17 of a metallic cover 18 of the vacuum interrupter 6, wherein a guide sleeve 19 is fixedly connected to the cover 18.
  • the end face 17 rests on the holding device 9.
  • a further holding device 9 is provided for centering the vacuum interrupter 9 and for controlling the electric field.
  • FIG. 4 shows a perspective view of the holding device 9, which has an annular disc-shaped holding portion 20 and in this respect at right angles extending flange portion 21.
  • the holding portion 20 has a passage opening 22 through which the shift rod 14 and the guide sleeve 19 extend in the installed state.
  • the through hole 22 facing centering means are provided in the form of mutually parallel brackets 23, which are each adapted to receive a threaded plate. In this case, each threaded plate on a threaded screw which extends to the through hole 22 through.
  • the flange portion 21 is connected to two claw-shaped support frame fixtures 10, which, as in FIG. 1 can be seen, are arranged for holding the holding device 9 in the support frame 2.
  • FIG. 5 shows the holding device 9 according to FIG. 4 in a cross-sectional view.
  • the flange portion 21 consists of a core portion 24 formed integrally with the holding portion 20 and surrounded by a thin-walled insulation 25.
  • the holding portion 20 is conductive during operation on the metallic cover 18 of the vacuum interrupter 6, so that a field control element is formed by the core portion 24 and the holding portion 20.
  • the holding device has a limited by the flange 21 inner diameter which is slightly larger than the outer diameter of the ceramic housing 7 of the vacuum interrupter 6.
  • the holding device 9 is complementary to the end face of the vacuum interrupter 6 formed.
  • the inner diameter of the through hole 22 is adapted to the outer diameter of the guide sleeve 19, so that it can be passed through the through hole 22.
  • the inner diameter of the flange portion 21 is only slightly larger than the outer diameter of the metallic cover 18, but slightly smaller than the outer diameter of the ceramic housing 7 of the vacuum interrupter 6. In other words, form the metallic cover 18 and the ceramic housing. 7 a circumferentially closed circumferential stage of the vacuum interrupter 6, wherein only the metallic cover 18 is excluded from the flange portion 21 and has a length adapted to this.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Clamps And Clips (AREA)

Claims (8)

  1. Dispositif (9) de maintien pour le maintien d'un interrupteur (6) électronique dans un cadre (2) porteur d'un pôle (1) d'interrupteur, comprenant une partie (20) de maintien, qui a une ouverture (22) traversante et qui est conçue pour s'appliquer à une surface frontale de l'interrupteur (6) électronique, une partie (21) de bride, qui est reliée fixement à la partie (20) de maintien et qui entoure au moins en partie le contour extérieur de la surface frontale et une fixation (10) du cadre porteur pour le montage du dispositif de maintien sur le cadre (2) porteur, caractérisé par
    - un élément (20, 24) de commande de champ, qui est destiné à la commande d'un champ électrique et qui, pendant le fonctionnement de l'interrupteur (6) électronique, peut être relié d'une manière conductrice à un élément constitutif de l'interrupteur (6) électronique, qui se trouve pendant le fonctionnement de l'interrupteur (6) électronique à un potentiel de haute tension, ainsi que par
    - des moyens (23) de centrage, qui sont reliés à la partie de maintien et qui sont tournés vers l'ouverture (22) de traversée.
  2. Dispositif (9) de maintien suivant la revendication 1,
    caractérisé en ce que
    l'élément (20, 24) de commande de champ s'étend dans la partie (21) de bride ou sur celle-ci.
  3. Dispositif (9) de maintien suivant l'une des revendications 1 ou 2,
    caractérisé en ce que
    l'élément de commande de champ entoure une partie (24) métallique de noyau de la partie (21) de bride, qui est entouré d'un isolant (25).
  4. Dispositif (9) de maintien suivant la revendication 3
    caractérisé en ce que
    l'isolant (25) est à paroi mince.
  5. Dispositif (9) de maintien suivant l'une des revendications précédentes,
    caractérisé en ce que
    l'élément de commande de champ constitue la partie (20) de maintien.
  6. Dispositif (9) de maintien suivant l'une des revendications précédentes,
    caractérisé en ce que
    la partie (20) de maintien est constituée métalliquement et d'une pièce avec une zone (24) de noyau également métallique de la partie (21) de bride, la zone (24) de noyau étant entourée d'un isolant (25), de manière à ce que l'élément de commande de champ soit constitué par la partie (20) de bride et par la zone (24) de noyau.
  7. Dispositif (9) de maintien suivant l'une des revendications précédentes,
    caractérisé en ce que
    les moyens de centrage ont des étriers (23) de maintien, qui s'étendent parallèlement entre eux et qui disposent d'une rainure de réception, des plaquettes filetées étant montées dans la rainure de réception, plaquettes dans lesquelles s'étend une visse de centrage dirigée sur l'ouverture de traversée.
  8. Pôle (1) d'interrupteur pour interrompre un courant électrique alternatif,
    caractérisé par
    au moins un dispositif (9) de maintien suivant l'une des revendications précédentes.
EP05777786.4A 2005-08-10 2005-08-10 Dispositif de maintien a proprietes de commande de champ Active EP1913620B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2005/001436 WO2007016882A1 (fr) 2005-08-10 2005-08-10 Dispositif de maintien a proprietes de commande de champ

Publications (2)

Publication Number Publication Date
EP1913620A1 EP1913620A1 (fr) 2008-04-23
EP1913620B1 true EP1913620B1 (fr) 2013-11-13

Family

ID=36027591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05777786.4A Active EP1913620B1 (fr) 2005-08-10 2005-08-10 Dispositif de maintien a proprietes de commande de champ

Country Status (6)

Country Link
EP (1) EP1913620B1 (fr)
CN (1) CN101238533B (fr)
DE (1) DE112005003725A5 (fr)
ES (1) ES2436756T3 (fr)
HK (1) HK1117640A1 (fr)
WO (1) WO2007016882A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2255423B1 (fr) * 2008-02-15 2016-04-13 ABB Technology Ltd Disjoncteur configurable
DE102009031598B4 (de) * 2009-07-06 2011-06-01 Siemens Aktiengesellschaft Vakuumschaltröhre
DE102013222319A1 (de) * 2013-11-04 2015-05-07 Siemens Aktiengesellschaft Anschlussstück für einen Schalterpol eines Schaltgerätes
FR3070533B1 (fr) * 2017-08-28 2019-09-13 Schneider Electric Industries Sas Pole de coupure de courant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10247444A (ja) 1997-03-04 1998-09-14 Toshiba Corp ガス絶縁真空遮断器
FR2807203B1 (fr) 2000-03-31 2002-05-24 Schneider Electric Ind Sa Module de coupure comportant une ampoule a vide et des moyens de fixation, et appareillage electrique de coupure comportant un tel module
FR2809861B1 (fr) * 2000-05-30 2002-07-12 Alstom Chassis pour ampoule a vide de module interrupteur de puissance

Also Published As

Publication number Publication date
ES2436756T3 (es) 2014-01-07
DE112005003725A5 (de) 2008-07-10
WO2007016882A1 (fr) 2007-02-15
EP1913620A1 (fr) 2008-04-23
CN101238533B (zh) 2012-05-30
CN101238533A (zh) 2008-08-06
HK1117640A1 (en) 2009-01-16

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