EP1058281B1 - Appareil interrupteur de basse tension avec rails de raccordement et méthode pour indiquer le courant nominal de l'appareil interrupteur - Google Patents

Appareil interrupteur de basse tension avec rails de raccordement et méthode pour indiquer le courant nominal de l'appareil interrupteur Download PDF

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Publication number
EP1058281B1
EP1058281B1 EP20000250169 EP00250169A EP1058281B1 EP 1058281 B1 EP1058281 B1 EP 1058281B1 EP 20000250169 EP20000250169 EP 20000250169 EP 00250169 A EP00250169 A EP 00250169A EP 1058281 B1 EP1058281 B1 EP 1058281B1
Authority
EP
European Patent Office
Prior art keywords
switching device
connecting rails
low
cutouts
voltage switching
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
EP20000250169
Other languages
German (de)
English (en)
Other versions
EP1058281A3 (fr
EP1058281A2 (fr
Inventor
Michael Bach
Detlev Schmidt
Michael Sebekow
Ingo Thiede
Günter SEIDLER-STAHL
Sezai TÜRKMEN
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
Priority claimed from DE10021272A external-priority patent/DE10021272A1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1058281A2 publication Critical patent/EP1058281A2/fr
Publication of EP1058281A3 publication Critical patent/EP1058281A3/fr
Application granted granted Critical
Publication of EP1058281B1 publication Critical patent/EP1058281B1/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
    • H01H71/06—Distinguishing marks, e.g. colour coding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • H01H2009/188—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks with indication of rating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H2011/0093—Standardization, e.g. limiting the factory stock by limiting the number of unique, i.e. different components
    • 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 low-voltage switching device, such as z. B. a low voltage circuit breaker with one off a rear wall and a front part existing housing and at least one contact system located in this housing, the two roughly parallel connection rails for connection of the contact system with an external circuit, wherein the connecting rails with end ends extend the back wall and by fasteners in the Housing are locked.
  • the invention is also concerned with a procedure to use the connecting rails to or rated current of the switching device.
  • connection rails are for the properties of a switching device essential because they determine based on their Resilience the assignment of the entire device to a specific one Rated current or nominal current. Therefore has already been tried with different means, using connecting rails high resilience with comparatively small dimensions and to develop with simplified manufacturability.
  • the top of the Connection rails have a fixed switch contact and must be in one insulating wall body arranged and against the forces supported when the moving contacts hit be that the prescribed service life of the switchgear is observed. This requires an adapted design the interacting parts.
  • connecting rails and the one that receives them Housing not insignificantly stressed by forces that derive from further current conductors or isolating contacts.
  • connection rails Conventional switching devices, such as in DE 44 16 105 described screws that extend through transversely to the longitudinal axis the openings arranged and extend openings for their inclusion in the rear wall of the switchgear housing a corresponding nut thread is provided.
  • circuit breakers mentioned with high rated currents of for example, 1000 to 6000 A have the connection rails a considerable cross-section. To fix them and to make the connections they are with several Cross holes and there is a corresponding number of fasteners required. The production and the installation of such connecting rails is consequently with a high cost of materials and manufacturing.
  • connecting rails To produce these connecting rails are special Profiles used that have an integrally molded bar, from which pieces are then cut off, which form the connecting bar.
  • the attachment of the connecting rail takes place by the switch contact system facing Page.
  • the object of the present invention is therefore to Connection rails suitable for low-voltage switchgear to create that on the basis of a profiled Semi-finished products are economically producible, but above also have an increased thermal load capacity and are suitable for automated manufacturing and testing processes.
  • each connecting rail entry slopes for ease of interaction with plug-in disconnector contacts his. This not only increases the mechanical insertion resistance reduced. Rather, the abrasion is reduced and the service life of the contact surfaces increases. This contributes to Lowering the electrical contact resistance and thus also contributes to less warming.
  • Cutouts will be made in a production line for Switching device used automatic tester is able to for example using suitable test probes or styli Switchgear with different rated or nominal currents solely on the basis of the recesses in the connecting rails to identify.
  • Such a method does not only allow the rated current recognize a properly installed switchgear, but -for example with multi-pole switching devices, which have a large number of connecting rails proper assembly. It gives the simultaneous or successive checking of the recesses by one or more probes that the signals are different are, this can only mean that erroneously different Connection rails were installed.
  • FIG. 1 shows schematically a section through a low-voltage circuit breaker with the connecting rails according to the invention.
  • FIG. 2 shows a possible configuration of the recess with a connection rail with a nominal current value of 5000 A. according to the present invention.
  • FIG 3 shows a possible configuration of the recess with a connecting bar with a nominal current value of 6300 A. according to the present invention.
  • Figures 4 and 5 illustrate the detection of the design or nominal current of a switching device by means of the cutouts in the associated connecting rails by a Probe of a test facility.
  • Figure 1 shows schematically a section through a low-voltage circuit breaker 1 with one in its housing located, a movable contact 2 and a fixed Contact 3 having switch contact system.
  • the connecting bar 5 serves as a carrier of the fixed Switching contact 3 and an associated arcing horn 7, while the connecting bar 6 by an articulated conductor arrangement 8 with the movable switch contact 2 of the switch contact system communicates.
  • the connecting bar 5 with the fixed switching contact 3 is in the insulating wall body fixed, because during the switching process the movable contact 2 with full force on the fixed contact 3 hits.
  • the lower connecting bar 6 is through a housing pocket equipped with a current transformer 9 10 led.
  • On the parts of the Connection rails 5 and 6 can be a continuing rail be screwed on or a plug-in contact for slide-in switches be attached (not shown).
  • On the end faces through the holes 13 for the mounting screws the cross section of the conductor rails weakened, or by the resistance of the contact transitions of the isolating contacts additionally heated ends of the connecting rails 5 and 6 are for enlarging the heat emitting Surface recesses 11 or provided, whereby better heat dissipation is achieved. Also are on these ends entry slopes 14 and 15 or 16 and 17 for a Easier interaction with plug-in isolating contacts is provided.
  • connection rails shown 20 and 23 are examples of versions of the lower one Connection rail 6 in Figure 1. Both connection rails shown have the same external dimensions, i.e. you can in switchgear with the same dimensions as those provided in the housing Receiving openings used for the connection rails have different resilience on, e.g. B. 5000 A for the connecting rail 20 ( Figure 2) and 6300 A for the connecting bar 23 ( Figure 3). This is based on the fact that the connecting rail 20 according to FIG 2 due a profile indentation 21 opposite the connecting rail 23 according to FIG. 3 has a reduced cross section. Because the end faces of the connecting rails 20 and 23 with differently shaped recesses 22 and 24 are provided, but there is a distinguishing feature Available.
  • the recess 22 of the connecting rail 20 ( Figure 2) designed approximately semicircular, while the recess 24 of the connecting rail 23 (FIG. 3) is approximately a rounded one Rectangle corresponds.
  • the respective nominal current can both a fitter by eye and an automatic test machine, for example based on the different entrance depth of test probes or stylus needles.
  • FIGS. 4 and 5 Such an automated nominal current detection is shown in FIGS. 4 and 5 as part of a corresponding procedure illustrated.
  • FIGS. 4 and 5 show in an enlarged view Scale the end located on the outside of the switchgear a connecting rail 20 or 23 in connection with a Probe head 25.
  • This contains three probe needles 26, 27 and 28, which are each under the action of a compression spring 29 and switch contacts coupled with the aforementioned styli 30. These are closed when the stylus 26, 27 and 28th are unloaded and therefore farthest from the probe 25 protrude. First of all, this allows a simple check of whether the probe is working properly.
  • the signals specific to the cutouts 22 and 24 will be an evaluation device 31 supplied, the stored Contains signals of the total recesses provided. By comparing the signal supplied by the probe 25 with the stored signals done as a result on one Display field of the evaluation device 31 the output of the dimensioning or rated current with "5000 A” for a switching device with Connection rails 20 ( Figure 4) or with "6300 A” for one Switchgear with connection rails 23 ( Figure 5).
  • the advantages of the solution according to the invention consist in one improved compared to the conventional connecting rails Heat dissipation due to an enlarged surface, especially with high nominal currents and a lower running-in resistance for slide-in switches. Furthermore, weight reduction of the total switch and a cost reduction reached, as well as a recognizability of the nominal current of the Connection rails for the fitter as well as for one Testing machines implemented.
  • connection rails are also with others Switchgear available, for example with fuse switch disconnectors or insertable device combinations for Switchgear.
  • the described connection rails are here analogously applicable with advantage.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Patch Boards (AREA)
  • Breakers (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Claims (8)

  1. Appareil interrupteur à basse tension (1) comportant un boítier constitué d'une paroi arrière (4) et d'une partie avant et un système de contact qui est situé dans ce boítier et qui comporte au moins deux barres de connexion (5, 6 ; 20, 23) sensiblement parallèles pour la liaison du système de contact à un circuit de courant extérieur, les barres de connexion (5, 6 ; 20, 23) s'étendant par des extrémités côté frontal à travers la paroi arrière (4) et étant bloquées dans le boítier par des moyens de fixation, caractérisé par le fait que les surfaces frontales libres des extrémités frontales des barres de connexion (5, 6 ; 20, 23), auxquelles des surfaces de contact se raccordent pour la liaison des barres de connexion (5, 6 ; 20, 23) au circuit de courant extérieur, comportent des évidements (11, 12 ; 22, 24) servant à agrandir la surface dissipant la chaleur.
  2. Appareil interrupteur à basse tension selon la revendication 1, caractérisé par le fait que les extrémités frontales des barres de connexion (5, 6) comportent des biseaux d'insertion (14, 15 ; 16, 17) pour faciliter la coopération avec des contacts de coupure à insérer.
  3. Appareil interrupteur à basse tension selon la revendication 2, caractérisé par le fait que les évidements (11, 12) sont disposés dans le sens de la largeur des barres de connexion (5, 6).
  4. Appareil interrupteur à basse tension selon la revendication 1, caractérisé par le fait que les évidements (11 ; 22, 24) dans les barres de connexion (5, 6 ; 20, 23) sont conçus différemment en fonction d'un courant de dimensionnement ou nominal de l'appareil interrupteur (1).
  5. Appareil interrupteur à basse tension selon la revendication 4, caractérisé par le fait que les évidements (11, 12) dans les barres de connexion (5, 6) ont des formes différentes.
  6. Appareil interrupteur à basse tension selon la revendication 4 ou 5, caractérisé par le fait que les évidements (11, 12) dans les barres de connexion (5, 6) ont des hauteurs différentes.
  7. Appareil interrupteur à basse tension selon la revendication 4 ou 5, caractérisé par le fait que les évidements (11, 12) dans les barres de connexion (5, 6) ont des profondeurs différentes.
  8. Procédé pour la reconnaissance du courant de dimensionnement ou nominal d'un appareil interrupteur à basse tension selon l'une des revendications précédentes, caractérisé par les étapes suivantes :
    un palpeur (25) est approché des extrémités, dépassant du boítier de l'appareil interrupteur, des barres de connexion (20, 23),
    la conception ou forme respective de l'évidement (22, 24) est reconnue par le palpeur (25) et est traduite par un signal électrique représentant la conception ou forme,
    le signal électrique est comparé à des signaux mémorisés pour les conceptions ou formes d'évidements prévues dans l'appareil interrupteur considéré avec à chaque fois un courant de dimensionnement ou nominal associé et, en cas de coïncidence avec l'un des signaux mémorisés, le courant de dimensionnement ou nominal est affiché.
EP20000250169 1999-05-31 2000-05-31 Appareil interrupteur de basse tension avec rails de raccordement et méthode pour indiquer le courant nominal de l'appareil interrupteur Expired - Lifetime EP1058281B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19925966 1999-05-31
DE19925966 1999-05-31
DE10021272 2000-04-26
DE10021272A DE10021272A1 (de) 1999-05-31 2000-04-26 Niederspannungs-Schaltgerät mit Anschlusschienen sowie Verfahren zur Erkennung des Bemessungsstromes des Schaltgerätes

Publications (3)

Publication Number Publication Date
EP1058281A2 EP1058281A2 (fr) 2000-12-06
EP1058281A3 EP1058281A3 (fr) 2002-04-24
EP1058281B1 true EP1058281B1 (fr) 2003-08-13

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ID=26005515

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Application Number Title Priority Date Filing Date
EP20000250169 Expired - Lifetime EP1058281B1 (fr) 1999-05-31 2000-05-31 Appareil interrupteur de basse tension avec rails de raccordement et méthode pour indiquer le courant nominal de l'appareil interrupteur

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EP (1) EP1058281B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10219561A1 (de) * 2002-04-26 2003-11-13 Siemens Ag Elektrischer Leistungsschalter mit einem Stromwandler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662137A (en) * 1970-01-21 1972-05-09 Westinghouse Electric Corp Switchgear having heat pipes incorporated in the disconnecting structures and power conductors
DE4416105C1 (de) * 1994-04-19 1995-05-24 Siemens Ag Niederspannungs-Leistungsschalter mit einer Schaltkammer
DE19643607A1 (de) * 1996-05-13 1997-11-20 Siemens Ag Leistungsschalter für Niederspannung mit Anschlußschienen
US5753875A (en) * 1996-10-15 1998-05-19 Eaton Corporation Heat sink for contact stems of a vacuum interrupter and a vacuum interrupter therewith

Also Published As

Publication number Publication date
EP1058281A3 (fr) 2002-04-24
EP1058281A2 (fr) 2000-12-06

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