EP0223732B1 - Disjoncteur multipolaire de puissance basse tension avec barres de courant - Google Patents

Disjoncteur multipolaire de puissance basse tension avec barres de courant Download PDF

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Publication number
EP0223732B1
EP0223732B1 EP86730159A EP86730159A EP0223732B1 EP 0223732 B1 EP0223732 B1 EP 0223732B1 EP 86730159 A EP86730159 A EP 86730159A EP 86730159 A EP86730159 A EP 86730159A EP 0223732 B1 EP0223732 B1 EP 0223732B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
bars
voltage power
conductor bars
power circuit
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
EP86730159A
Other languages
German (de)
English (en)
Other versions
EP0223732A1 (fr
Inventor
Günter Dipl.-Ing. Prietzel
Georg Sprenger
Reinhard Dipl.-Ing. Kugler
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 EP0223732A1 publication Critical patent/EP0223732A1/fr
Application granted granted Critical
Publication of EP0223732B1 publication Critical patent/EP0223732B1/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections

Definitions

  • the invention relates to a multi-pole low-voltage circuit breaker with busbars for connecting contact arrangements of the circuit breaker with one or more circuits, the busbars for the input side and the busbars for the output side in one row and both rows parallel to one another and at right angles to the rear and to the side walls of the circuit breaker are arranged.
  • a circuit breaker of this type has become known, for example, from EP-A-0 071 385.
  • each terminal point is located on a conductor piece that extends horizontally to the rear with respect to the normal position of use of the circuit breaker.
  • Stiffening elements made of insulating material ensure that the conductor rails cannot be deformed by forces due to the flowing currents.
  • Some of these stiffening elements can be attached to the side walls of the circuit breaker and have threaded openings for this.
  • Similar stiffening elements or support bodies have also become known in an embodiment in which in each case a uniform or divided support body is provided jointly for the busbars on the input side or the output side (US Pat. No. 4,277,664). These support bodies are attached to the rear of the circuit breaker.
  • circuit breakers are suitable, for example, for an extendable arrangement in which suitable transition pieces or parts of an isolating contact arrangement are attached to the conductor rails.
  • the circuit breaker is to be permanently installed in a switchgear, further connecting rails are required, which are located between the terminal points of the contact arrangement of the circuit breaker or the ends of the current rails supported by the supporting bodies towards stationary busbars, for example busbars. Because of the poor accessibility of the terminal points on the rear of the circuit breaker, such an assembly presents considerable difficulties. It would be cheaper if the necessary connections could be made from the front of the system with the circuit breaker already installed.
  • connection rails As such, it would be possible to avoid such harmful deformations by designing the connecting rails as an integral part of the circuit breaker and accordingly, with the exception of an open end provided for connection to a fixed current rail, which is completely fixed.
  • a circuit breaker would not remain suitable for use as a retractable circuit breaker.
  • embedding the connecting rails between insulating parts would undesirably hinder heat dissipation.
  • a dimensioning of the connection rails with a larger than the cross-section required from an electrical point of view would increase the strength in the desired manner, but at the same time would considerably increase the weight and the cost of the connection arrangement.
  • the invention has for its object to form a circuit breaker of the type mentioned in such a way that it both can be used as a slide-in switch as well as a switch to be permanently installed, the connection to further current conductors of a switchgear can be made from the front of the circuit breaker and the transition conductors located between the circuit breaker and the system-side current conductors are protected against the influence of forces, as they are especially caused by short-circuit currents.
  • Such a support body which can be produced, for example, in a known manner from a thermosetting plastic by injection molding, is distinguished both by high strength with little deformation and by favorable dielectric behavior.
  • the operations to be carried out for the attachment of support bodies are extremely simple because the threaded opening of the support body and a corresponding opening in the side wall are aligned by the stop surface, so that a fastening screw can be used.
  • the low-voltage circuit breaker 1 shown in FIG. 1 has contact arrangements 3 arranged parallel to one another on an insulating block 2, corresponding to the number of poles. These contact arrangements each consist of a fixed part 4 and a movable part 5, the interacting contact piece supports of which are designated 6 and 7. Furthermore, the fixed part 4 has an arcing horn 10 and the movable part 5 has an arcing horn 11.
  • the contact arrangement 3 of each pole is assigned an arcing quenching chamber 12 which is provided with quenching plates in a known manner.
  • a drive device, a switch lock and, if necessary, a motor drive are housed below and to the right of the contact arrangement 3 within the housing 19 of the circuit breaker 1. These parts are not shown in detail and correspond to a suitable design.
  • the contact arrangements 3 are equipped with upper clamping points 15 and lower clamping points 16 attached to the insulating block 2. Both clamping points are attached to the insulating block 2 and are located on conductor pieces 8 and 9, respectively, which extend in the horizontal direction on the rear side opposite an operating panel 13 of the circuit breaker 1.
  • clamping points 15 and 16 are angled Connection rails 17 and 18 connected, which extend upwards and downwards and are arranged at a distance from the rear of the circuit breaker 1.
  • the length of the connecting rails 17 and 18, as shown clearly in FIG. 1, is dimensioned such that the connecting bores 20 and 21 indicated near the ends of the connecting rails 17 and 18 are accessible from the front side of the circuit breaker 1.
  • upper stationary busbars 30 are connected to the connecting rails 17 and lower stationary busbars 31 are connected to the connecting rails 18.
  • the circuit breaker 1 is partially shown from the rear with a view of the upper connecting rails 17, the associated stationary busbars being omitted in order to show the fastening bores 20.
  • the same support bodies 22, schematically shown, associated with the connecting rails 17 and 18 are used, which are fastened to the side walls 26 and 29 of the circuit breaker 1. Details of these support bodies are explained with reference to FIGS. 3, 4 and 5.
  • the support body 35 according to FIGS. 3, 4 and 5 is designed as a molded part and takes the place of the support body 22 shown schematically in FIGS. 1 and 2.
  • the support body 35 has an approximately H-shaped cross section, 36 through-openings 37 being provided for the connecting rails 17 and 18 between the H-legs.
  • the H-legs 36 are connected by transverse webs 40 between the passage openings 37, as shown in FIG. 3.
  • the support body 35 obtains a high bending stiffness and favorable behavior in dielectric terms, since the creepage distances are long.
  • the support body 35 On the end faces, the support body 35 is provided with a shoulder, each with a stop surface 41, which is in contact with the The rear end face of the associated side wall 26 or 29 of the circuit breaker 1 (see FIGS. 1 and 2) is intended for fastening in each case a threaded opening 42 which can be formed by a threaded bush anchored in the material of the support body 35 in the region of the heel surface and which it allows the support body 35 to be screwed to the side walls 26 and 29.

Landscapes

  • Breakers (AREA)

Claims (1)

  1. Sectionneur de puissance multipolaire basse tension (1) comportant des rails conducteurs (19) destinés à relier des dispositifs de contact (3) du sectionneur de puissance à un ou plusieurs circuits, et dans lequel les rails conducteurs (8) pour le côté entrée et les rails conducteurs (9) pour le côté sortie sont disposés sur des rangées respectives et les deux rangées sont disposées parallèlement l'une à l'autre et perpendiculairement à la face arrière et aux parois latérales (26,29) du sectionneur de puissance (1), caractérisé par le fait qu'il est prévu des rails de raccordement (17, 18), qui sont utilisés pour réunir les rails conducteurs (8,9) à des conducteurs fixes, non alignés avec ces rails (8,9), et approximativement parallèles à la face arrière du sectionneur de puissance (1), pour le côté entrée et pour le côté sortie et que ces rails de raccordement sont serrés dans un corps de support commun respectif (35), qui est réalisé sous la forme d'un corps moulé possédant une section transversale approximativement en forme de H, les branches longitudinales (36) du "H" étant parallèles au plan des rails de raccordement (17,18), tandis que des ouvertures de passage (37) pour les rails de raccordement (17,18) sont ménagées dans la branche transversale située entre les branches longitudinales (36), les faces frontales du corps de support (35) sont fixées aux parois latérales (26,29) et qu'à cet effet, respectivement une surface de butée (41) destiné à s'appliquer contre la face frontale de la paroi latérale associée (26,29) du sectionneur de puissance (1) ainsi qu'une ouverture taraudée (42) pour une vis de fixation sont prévues contre les faces frontales du corps de support (35).
EP86730159A 1985-11-06 1986-10-16 Disjoncteur multipolaire de puissance basse tension avec barres de courant Expired - Lifetime EP0223732B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3539672 1985-11-06
DE19853539672 DE3539672A1 (de) 1985-11-06 1985-11-06 Niederspannungs-leistungsschalter mit einer kontaktanordnung und klemmstellen

Publications (2)

Publication Number Publication Date
EP0223732A1 EP0223732A1 (fr) 1987-05-27
EP0223732B1 true EP0223732B1 (fr) 1991-02-27

Family

ID=6285498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86730159A Expired - Lifetime EP0223732B1 (fr) 1985-11-06 1986-10-16 Disjoncteur multipolaire de puissance basse tension avec barres de courant

Country Status (4)

Country Link
US (1) US4802059A (fr)
EP (1) EP0223732B1 (fr)
DE (2) DE3539672A1 (fr)
IN (1) IN163748B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240689A (en) * 1989-06-19 1993-08-31 Noell, Inc. Process using two-stage boiler injection for reduction of nitrogen
FR2802332B1 (fr) * 1999-12-13 2004-04-23 Labinal Contacteur de puissance et dispositif de distribution de puissance electrique le comportant
DE10032654A1 (de) * 2000-06-28 2002-01-17 Siemens Ag Anschlussschiene aus profilierten Halbzeugen, für elektrische Geräte und Apparate, für verschiedene Nennströme
DE20106248U1 (de) * 2001-04-04 2002-08-08 Siemens Ag Anschlussschiene für Niederspannungs-Leistungsschalter
EP2835171A1 (fr) 2013-08-08 2015-02-11 Technical University of Denmark Procédé et système pour la purification de gaz d'échappement avec une cellule électrochimique
CN103446806B (zh) * 2013-09-13 2015-06-10 西北有色金属研究院 一种具有非对称结构的多孔材料的制备方法
EP3090472B1 (fr) 2014-01-03 2024-05-08 Electronic Theatre Controls, Inc. Ensemble de disjoncteurs
US11245259B2 (en) * 2018-08-30 2022-02-08 Delta Electronics, Inc. Power supply system
CN113284776B (zh) * 2021-05-18 2023-07-25 常州市耕耘电器有限公司 一种便于装配的断路器触头系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862995A (en) * 1953-05-11 1958-12-02 Frank Adam Electric Co Mounting back for electrical switching devices
US3293503A (en) * 1964-06-05 1966-12-20 Ite Circuit Breaker Ltd Panelboard assembly with side mounted support means and line terminals accessible from rear
US3288956A (en) * 1965-03-01 1966-11-29 Gen Electric Draw-out switch-gear interlock apparatus
US3769553A (en) * 1972-11-01 1973-10-30 Westinghouse Electric Corp Panelboard with insulative snap-in support means
DE2646123C2 (de) * 1976-10-13 1985-03-07 Brown, Boveri & Cie Ag, 6800 Mannheim Tragplatte zur Halterung von elektrischen Installationsgeräten
US4277664A (en) * 1979-08-24 1981-07-07 Westinghouse Electric Corp. Circuit breaker structure
JPS57211910A (en) * 1981-06-24 1982-12-25 Tokyo Shibaura Electric Co Conductor device
JPS5813655U (ja) * 1981-07-17 1983-01-28 三菱電機株式会社 回路しや断器の端子装置

Also Published As

Publication number Publication date
EP0223732A1 (fr) 1987-05-27
DE3677715D1 (de) 1991-04-04
US4802059A (en) 1989-01-31
DE3539672A1 (de) 1987-05-07
IN163748B (fr) 1988-11-05

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