EP1339081B1 - Traversée d'un conducteur par une parois de boítier - Google Patents

Traversée d'un conducteur par une parois de boítier Download PDF

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Publication number
EP1339081B1
EP1339081B1 EP20020090067 EP02090067A EP1339081B1 EP 1339081 B1 EP1339081 B1 EP 1339081B1 EP 20020090067 EP20020090067 EP 20020090067 EP 02090067 A EP02090067 A EP 02090067A EP 1339081 B1 EP1339081 B1 EP 1339081B1
Authority
EP
European Patent Office
Prior art keywords
field control
control element
leadthrough
contact
housing wall
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 - Lifetime
Application number
EP20020090067
Other languages
German (de)
English (en)
Other versions
EP1339081A1 (fr
Inventor
Manfred Binder
Karsten Dr. Freundt
Thomas Rädisch
Norbert Steinemer
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
Priority to ES02090067T priority Critical patent/ES2222432T3/es
Priority to DE50200499T priority patent/DE50200499D1/de
Priority to EP20020090067 priority patent/EP1339081B1/fr
Priority to ITMI20020537 priority patent/ITMI20020537U1/it
Publication of EP1339081A1 publication Critical patent/EP1339081A1/fr
Application granted granted Critical
Publication of EP1339081B1 publication Critical patent/EP1339081B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H33/02—Details
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring

Definitions

  • the invention relates to an implementation for leading a electrical conductor through an electrically conductive housing wall a switchgear with a mounting section for Attach the bushing to one between a contact position and a disconnected position movable switching device and with a receiving section for receiving and isolating the also attached to the switchgear.
  • the invention further relates to a circuit breaker such an implementation.
  • the implementation is to increase the dielectric strength of the Switchgear and therefore to avoid partial discharges and Voltage flashovers between the earth potential Housing wall and that on the potential of the busbar Contact pin provided. It is fixed to the pole column connected and extends in the contact position of there through an opening provided in the housing wall.
  • the contact pin or conductor is between the Flat contact and the interrupter unit completely complete from the hollow cylindrical and from an insulating material finished implementation encased.
  • DE 37 43 367 discloses a to be attached to a housing wall Implementation that penetrates an opening and one Has flange section, which by screwing with the Housing is connectable in the area of the opening.
  • the implementation also has a receiving portion that is extends on both sides of the opening and to accommodate a tension leading leader is provided.
  • To control a electric field are two arranged in the receiving section Field control elements provided, which are attached in the Condition in the passage area of the implementation the housing wall essentially parallel to the longitudinal direction of the receiving section extends.
  • EP 0543 683 A1 describes solid insulation for a Switchgear described.
  • the invention is therefore based on the task of carrying out and a circuit breaker of the type mentioned Kind to provide with which the dielectric strength at Passage of the passage through the housing wall is increased.
  • the invention solves this problem in that an inner Field control element that can be electrically connected to the conductor and an external field control element is provided are the inner field control element at least in one Passage area is arranged opposite, wherein configured the implementation regarding the switchgear and is dimensioned that the contact-free in the disconnected position outer field control element in the transition from the Separating position in the contact position automatically in contact occurs with the housing wall.
  • the invention further solves this problem with a circuit breaker with such an implementation.
  • the invention is based on the knowledge that even on moving Bushings with bushings Field control elements can be equipped without the Handling the circuit breaker when transferring the switching device between the disconnected position and the contact position difficult. Because field control elements lead and control of the electric field allow that due to the potential difference between the conductor and the housing wall, can with appropriate design of the field control elements Voltage peaks causing partial discharges are avoided, whereby the dielectric strength of the invention Implementation is increased.
  • the implementation of the invention is like the electrical Conductor non-positively and / or positively on the movable Switchgear attached.
  • the inner field control element can therefore be easily screwed, for example or indirectly via additional connecting means, connected to the conductor reaching through the housing wall become.
  • the inner field control element is in the contact position thus at the potential of the electrical conductor.
  • the implementation according to the invention is designed such that that when transferring the switching device from the disconnected position in the contact position the outer field control element automatically, i.e. without additional measures or activities on the part of a user, in contact with the housing wall occurs.
  • the inner field control element and the outer field control element arranged in the receiving section that they are at least one another in a passage area are facing.
  • the passage area is the View area of implementation in the contact position of the switchgear opening the housing wall of the switchgear protrudes and is therefore closest to the housing wall comes. It is of course also within the scope of the invention possible that the field control element over larger areas run away from each other and face each other are.
  • the field control elements are located therefore either flat on the outer surface of the bushing on and are there by appropriate lanyards such as adhesives, a resin layer or the like kept or are within the material of execution arranged and therefore embedded in this.
  • the implementation is of course made of an insulating material, such as Cast resin or epoxy resin, ceramic or one non-conductive plastic, made so the tension between the live conductor and the earth potential lying housing wall therefore only in the insulating material the implementation dismantled and due to the high Dielectric constant of the insulating material is reduced. Stress relief via layers of air is therefore used in this Avoid expedient development of the invention, whereby the dielectric strength of the implementation even further is increased.
  • the implementation a sufficiently large thickness in the passage area has, so that the inner field control element of the outer field control element spaced sufficiently far to avoid electrical breakdown or partial discharge.
  • the inner field control element and are expedient the outer field control element complementary to each other designed. In this way, field concentrations and Voltage peaks avoided.
  • Molded sheets for example, come as field control elements or lattice or network structures.
  • the inner field control element and the outer field control element in cross section are L-shaped.
  • An in runs Contact position between the switching device and the housing wall horizontal leg of this L-shape parallel to the housing wall, so that the switching device is shielded from the housing wall is.
  • One perpendicular to the horizontal Leg frightening vertical leg extends however, from the horizontal leg over the passage area essentially parallel to the electrical conductor.
  • a contact spring is advantageously on the bushing provided, which is connected to the outer field control element is, the contact spring in the contact position on the Housing wall abuts.
  • the contact spring represents a certain Tolerance compensation ready, which compensates for changes in distance can be. It advantageously consists of one non-oxidizing or corroding material.
  • the receiving section expediently has support elements to hold the conductor on. This is how it is carried out additionally stabilized especially in the contact position.
  • the mounting section hollow cylindrical and goes with one on the switchgear shoulder area in the also hollow cylindrical receiving section.
  • the fastening section is therefore with its shoulder area can be placed on the polar armature of a breaker column, wherein the fastening section extends around the pole column protrudes so that their free end is completely in the Is arranged inside the fastening section.
  • the fastening section also or exclusively non-positively, for example by jamming to attach the pole column.
  • the implementation according to the invention is expedient molded in one piece so that the receiving section on the Fastening section is formed. It is different however, it is also possible to carry out the inventive process in several parts manufacture and the individual parts by suitable Measures such as gluing, screwing the like together connect to.
  • Figure 1 shows a circuit breaker 1 with the invention Bushings 2.
  • the circuit breaker 1 has a box-shaped Drive module on, inside of which not figuratively shown drives are arranged.
  • the drive module 3 is attached to a height-adjustable carriage 4 on which in their longitudinal direction of vertically aligned pole columns 5 as Switchgear are stored.
  • the bushing 2 is fastened at the end of the pole column 5.
  • the pole column 5 is equipped with polar armatures 6, one absolutely necessary, especially with high current loads Develop cooling effect.
  • the upper polar armature 6 is inside the implementation 2 arranged so that in Figure 1 only the lower polar armature 6 is shown.
  • Between Polar fittings 6 are in addition to pole shells 7 for mechanical stabilization the arrangement in Figure 1 concealed interrupter units provided for switching an electrical Current between an upper flat contact 8 and a lower flat contact 9 are set up.
  • the circuit breaker 1 is for use in one Switch panel provided, which has a housing in which the Circuit breaker 1 is retractable with its carriage 4.
  • Housings protrude into fixed conductor ends, which are in one Circuit breaker 1 retracted into the housing and in its disconnected position above the lower flat contacts 9 are arranged.
  • Above the upper flat contacts 8 and outside of the switch housing are live Busbars arranged so that when the car is lifted 4 the lower flat contact 9 in contact with the stationary Conductor ends and the upper flat contact 8 in contact with the busbars. In the contact position of the circuit breaker 1 is thus a current flow from the busbar on the conductor ends protruding into the switch housing allows.
  • Figure 2 shows a partially sectioned detailed view of the Implementation 2 according to Figure 1, which consists of a receiving section 10 and a fastening section 11, each are hollow cylindrical.
  • the receiving section goes 10 over a shoulder area 12, which is a partial area of the circumferentially expanded fastening section 11, in this over, the fastening portion 11 the upper Polar armature 6 of the pole column 5 encased and with its shoulder area 12 is supported on this, so that by the in Transverse direction positive design of the fastening section 11 with regard to the pole column 5, the bushing 2 the pole column 5 is attached.
  • the partially sectioned illustration of FIG recognizable that the receiving section 10 is stepped in the longitudinal section is formed so that an annular flat portion 15 is formed, which together with a fixed the contact bolt 13 connected holding disc 16 as a holding means acts, with the help of the implementation 2 on the pole column 5 is additionally stabilized.
  • the outer Field control element 20 is also by a screw 22 with a metallic and thus electrically conductive Contact spring 23 connected in the contact position of the circuit breaker, ters 1 is pressed against the housing wall 18, so that the outer field control element 20 is at the potential is the housing wall 18, which is usually grounded.
  • the Voltage drop therefore occurs particularly in the passage area 17 exclusively in the material of implementation 2 instead, made of an insulating material with a correspondingly high Dielectric constant and for example made of cast resin such as Epoxy resin, ceramic or non-conductive plastics.
  • the bushing 2 can be designed so that in the contact position the circuit breaker 1 is an electrically conductive Connection of the outer field control element 20 to the housing wall 18 is provided.
  • a contact spring 23 provided, which are at least partially horizontal Shoulder region 12 of the fastening section 11 is arranged. The distance of the circuit breaker 1 from the Inside of the housing wall 18 is in the contact position by the length of the contact pin 13 and the design of the upper flat contact 8 determined.
  • the implementation is therefore configured and dimensioned so that the of the upper polar armature 6 facing away from the contact spring 23 with a distance to the upper polar armature 6 is kept, the Distance of the upper polar fitting 6 to the housing wall 18 essentially equivalent.
  • the said distance can be deformed the contact spring 23 may also be somewhat larger.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Insulators (AREA)
  • Circuit Breakers (AREA)

Claims (9)

  1. Traversée (2) pour faire passer un conducteur (13) électrique à travers une paroi (8) de boítier conductrice de l'électricité, d'une installation de distribution, comprenant une partie (11) de fixation pour fixer la traversée à un appareil (5) de coupure mobile entre une position de contact et une position de séparation et une partie (10) de réception et d'isolation du conducteur (13) fixée également à l'appareil (5) de coupure, dans laquelle il est prévu un élément (19) intérieur de commande de champ, qui peut être relié électriquement au conducteur, et un élément (20) extérieur de commande de champ, qui est placé en regard de l'élément (19) intérieur de commande de champ au moins dans une partie (17) de passage, caractérisée en ce que la traversée (2) est configurée et dimensionnée par rapport à l'installation de distribution de façon à ce que l'élément (20) extérieur de commande de champ, sans contact en la position de séparation, vient, lors du passage de la position de séparation à la position de contact, automatiquement en contact avec la paroi (18) du boítier.
  2. Traversée suivant la revendication 1, caractérisée en ce que l'élément (19) intérieur de commande de champ et l'élément (20) extérieur de commande de champ sont appuyés par toute une surface sur la traversée (2).
  3. Traversée suivant la revendication 1 ou 2, caractérisée en ce que l'élément (19) intérieur de commande de champ et l'élément (20) extérieur de commande de champ sont conformés en étant de forme complémentaire entre eux.
  4. Traversée suivant l'une des revendications précédentes, caractérisée en ce que l'élément (19) intérieur de commande de champ et l'élément (20) extérieur de commande de champ sont conformés en forme de L en section transversale.
  5. Traversée suivant l'une des revendications précédentes, caractérisée en ce qu'il est prévu un ressort (23) de contact, qui est relié électriquement à l'élément (20) extérieur de commande de champ, le ressort (23) de contact étant, en la position de contact, relié électriquement à la paroi (18) du boítier.
  6. Traversée suivant l'une des revendications précédentes, caractérisée en ce que la partie (10) de réception comporte des éléments (15, 16) d'appui pour maintenir le conducteur (13).
  7. traversée suivant l'une des revendications précédentes, caractérisée en ce que la partie (11) de fixation est constituée sous la forme d'un cylindre creux et se transforme, par une partie d'épaulement pouvant être mise sur l'appareil (5) de coupure, en la partie de réception également en forme de cylindre creux.
  8. Traversée suivant l'une des revendications précédentes, caractérisée en ce que la partie (10) de réception et la partie (11) de fixation sont constituées d'un seul tenant.
  9. Disjoncteur ayant des traversées suivant l'une des revendications 1 à 8.
EP20020090067 2002-02-21 2002-02-21 Traversée d'un conducteur par une parois de boítier Expired - Lifetime EP1339081B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES02090067T ES2222432T3 (es) 2002-02-21 2002-02-21 Boquilla de paso para guiar un conductor electrico a traves de una pared de una carcasa.
DE50200499T DE50200499D1 (de) 2002-02-21 2002-02-21 Durchführung zum Führen eines elektrischen Leiters durch eine Gehäusewand
EP20020090067 EP1339081B1 (fr) 2002-02-21 2002-02-21 Traversée d'un conducteur par une parois de boítier
ITMI20020537 ITMI20020537U1 (it) 2002-02-21 2002-11-20 Passante per guidare un conduttore elettrico attraverso la parete di una cassa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020090067 EP1339081B1 (fr) 2002-02-21 2002-02-21 Traversée d'un conducteur par une parois de boítier

Publications (2)

Publication Number Publication Date
EP1339081A1 EP1339081A1 (fr) 2003-08-27
EP1339081B1 true EP1339081B1 (fr) 2004-06-02

Family

ID=27635874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020090067 Expired - Lifetime EP1339081B1 (fr) 2002-02-21 2002-02-21 Traversée d'un conducteur par une parois de boítier

Country Status (4)

Country Link
EP (1) EP1339081B1 (fr)
DE (1) DE50200499D1 (fr)
ES (1) ES2222432T3 (fr)
IT (1) ITMI20020537U1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4967167A (fr) * 1972-11-01 1974-06-28
JPS5238173A (en) * 1975-09-22 1977-03-24 Hitachi Ltd Buffer gas breaker
US4104497A (en) * 1976-08-30 1978-08-01 General Electric Company Disconnect contact assembly for metal-clad switchgear and the like
ES2157132T3 (es) * 1999-01-05 2001-08-01 Enel Distribuzione Spa Conjunto disyuntor multipolar.

Also Published As

Publication number Publication date
ES2222432T3 (es) 2005-02-01
DE50200499D1 (de) 2004-07-08
ITMI20020537U1 (it) 2003-08-22
EP1339081A1 (fr) 2003-08-27

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