EP0801410B1 - Appareillage interrupteur d'installation électrique - Google Patents

Appareillage interrupteur d'installation électrique Download PDF

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Publication number
EP0801410B1
EP0801410B1 EP97105731A EP97105731A EP0801410B1 EP 0801410 B1 EP0801410 B1 EP 0801410B1 EP 97105731 A EP97105731 A EP 97105731A EP 97105731 A EP97105731 A EP 97105731A EP 0801410 B1 EP0801410 B1 EP 0801410B1
Authority
EP
European Patent Office
Prior art keywords
installation switchgear
ptc resistor
plates
ptc
resistor
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
EP97105731A
Other languages
German (de)
English (en)
Other versions
EP0801410A2 (fr
EP0801410A3 (fr
Inventor
Joachim Becker
Ralf MÜLLER
Bernd Siedelhofer
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0801410A2 publication Critical patent/EP0801410A2/fr
Publication of EP0801410A3 publication Critical patent/EP0801410A3/fr
Application granted granted Critical
Publication of EP0801410B1 publication Critical patent/EP0801410B1/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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/161—Variable impedances
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/161—Variable impedances
    • H01H2033/163—Variable impedances using PTC elements

Definitions

  • the invention relates to an installation switching device according to the preamble of the claim 1.
  • Document EP 0 661 790 A discloses an installation switching device according to the preamble of claim 1.
  • Such an installation switching device is known per se and is described, for example, under the name S 280 from ABB Stotz-Kontakt GmbH, Heidelberg.
  • This Switchgear is designed for a certain breaking capacity and it is therefore a task the invention, the installation switching device without any special additional space and large constructive or assembly effort for higher breaking capacities.
  • the resistor arrangement with positive temperature coefficient is short also simply called PTC resistor, to the side of the installation device in one limited space by a cup-shaped shell housing, the free edges of the shell housing against the side surface of the installation device issue.
  • the shell housing has the outer contour of the installation switching device.
  • one Base is designed as a cross-web contour, then is preferred Embodiment of the PTC resistor by at least one rectangular plate element formed, the circumferential contour of the contour of the base is adapted.
  • a particularly advantageous embodiment of the invention can be that the PTC resistor between two metallic plates made of electrically conductive material, preferably made of copper, has a film made of PTC material.
  • the two metallic Plates and the film made of PTC material by means of arranged on the long sides Brackets are held together, which according to a further embodiment metallic material are formed, each with an insulating film between the plates and the clamps for isolating the plates from the clamps are arranged.
  • the longitudinal side edges adjacent to the brackets are the Panels made of electrically good conductive material covered by insulating profiles between the brackets and the long side edges are arranged.
  • a limiting resistor is connected in the form of a resistance wire.
  • the PTC resistor is everywhere in the conduction path of the electrical Installation device can be turned on, it has essentially found to be favorable for design reasons, the PTC resistance between a connecting terminal and the thermal release.
  • the PTC resistor connected to the terminal by means of a connecting lug attached to it as well as on the thermal release using a stranded wire.
  • a connecting lug attached to it as well as on the thermal release using a stranded wire.
  • electrically conductive connection between the PTC resistor and the corresponding connection points in the current path there are other ways of electrically conductive connection between the PTC resistor and the corresponding connection points in the current path.
  • the resistance wire is preferably at one end on the terminal lug and excluded with the other end at the strand.
  • a circuit breaker 10 is shown, which in a housing 11 in Narrow construction is housed.
  • the circuit breaker 10 has a connection terminal 12, which has a clamp frame 13 and a box frame 14, an arc quenching plate packet 15, an electromagnet system 16, the coil 17 with one end 18 with a V-shaped support 19 for a serving as a thermal trigger Thermobimetal 20 is connected; the thermal bimetal 20 is on one Arm 21 of the V-shaped bracket 19 attached, while the other arm with the end 18 of the coil 17 is connected.
  • the circuit breaker 10 has a second Terminal 22 and a switch lock 23 with a not shown toggle and one Contact point 23a.
  • a strand 24 is fastened to the bimetal 20 in its fastening area, see below.
  • the terminal frame 13 is self-contained and has two side walls 25 which are connected to one another by an upper web wall 26 and a lower web wall 27. In this respect, the terminal frame 13 is part of a terminal known per se.
  • a connecting lug 29 On the upper web 26 is a perpendicular to it and parallel to the side walls 25 Formed projection 28, on which a connecting lug 29 is attached. she owns two legs 30 and 31 that span a plane that is parallel to the plane of the web 26 runs and of which the leg 31 is attached to the projection 28 is. At the free end of the leg 30, a further web 32 is formed, which is vertical to the leg 30 in its plane and away from the web 26. This another web 32 closes, as can be seen from FIG. 1, on a formation 34 on a first plate 35 of a PTC resistor 36 shown in FIG. 1.
  • This PTC resistor comprises two plates 35 and 37 made of electrically highly conductive material, e.g. B.
  • the formation 34 is integrally connected to the plate 35; on a protrusion 41 is formed on the plate 37, to which the strand 24 is fastened.
  • a resistance wire 42 is connected to the formation 34, which forms a loop shape, which is basically L-shaped, the L-shape by projection in the plane of the plates 35 and 37 is visible.
  • the leg 43 of the L-shape is itself again U-shaped, with a first U-leg 44 and a second U-leg 45, the U-leg 44 with the Formation 34 and the U-leg 45 are firmly connected to the terminal lug 41.
  • the sections 46 and 47 of the leg 48 are, based on the position of FIG. 1, of connected at the top to the formation 34 or from below to the connecting lug 41.
  • the PTC resistor 36 which has an elongated rectangular contour that the Shape of the base or crossbar of the circuit breaker according to FIG. 4 in the Contour corresponds to the outside of a housing side or upper part 50 placed with which the lower housing part 11 of FIG. 4 is closed. On the outside the upper housing part 50 has one along the fastening side of the installation switching device 4 extending channel 51, in which the leg 45th for guiding the resistance wire 42 is inserted. 3, the web 32 and the strand 24 visible, so that from the synopsis of the individual drawings it can be seen how the PTC resistor 35 is assigned to the circuit breaker 10 is. From Fig.
  • Resistor 42 is a limiting resistor that blocks the current through the PTC resistor 36 limited in its high-resistance state, so that it with high short-circuit currents is not damaged.
  • the PTC resistor 36 between the thermal release 20 and the adjacent terminal 12 is located.
  • this resistance can be anywhere in the current path be used or switched on; in the case of a circuit breaker, the PTC resistance also between the thermal release 20 and the magnetic release 16, the magnetic release 16 and the contact point 23a or between the contact point 23a and the other terminal 22 must be switched on.
  • the housing parts are connected to one another by means of conventional means, for. B. rivets or screws.

Landscapes

  • Thermistors And Varistors (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (11)

  1. Appareillage interrupteur d'installation électrique, en particulier disjoncteur de protection de ligne, logé dans un boítier de type à module étroit, avec un contact, avec un déclencheur thermique et un déclencheur magnétique et avec un agencement de résistances à coefficient de température positif (thermistance-PTC), tous branchés en série, caractérisé en ce que la thermistance-PTC (36) est logée sur le côté de l'appareil interrupteur d'installation (10), dans une chambre délimitée par un boítier-enveloppe (60) en forme de coupelle, dont les bords libres sont appliqués contre la face latérale de l'appareil d'installation (10) et en ce que le boítier-enveloppe (60) a la même forme extérieure que l'appareil d'installation (10).
  2. Appareillage interrupteur d'installation de type à module étroit, sensiblement en forme de T comportant un socle formant barre transversale, selon la revendication 1, caractérisé en ce que la thermistance-PTC (36) comprend au moins un élément en forme de plaque (35, 37, 38) rectangulaire, dont le contour extérieur est adapté au socle.
  3. Appareillage interrupteur d'installation selon la revendication 2, caractérisé en ce qu'entre deux plaques (35, 37) en matériau bon conducteur du courant électrique, de préférence en cuivre, est disposée une feuille (38) de matériau à coefficient de température positif.
  4. Appareillage interrupteur d'installation selon la revendication 3, caractérisé en ce que les plaques (35, 37) et la feuille (38) sont maintenues assemblées par des pinces élastiques isolées par rapport aux plaques (35, 37).
  5. Appareillage interrupteur d'installation selon la revendication 4, caractérisé en ce que des feuilles isolantes (35a, 37a) sont disposées entre les plaques (35, 37) et les pinces élastiques (39, 40).
  6. Appareillage interrupteur d'installation selon la revendication 5, caractérisé en ce qu'un profilé isolant (36a, 36b) est disposé chaque fois entre les bords des grands côtés des plaques (35, 37) serrés entre les pinces (39, 40) et les pinces élastiques (39, 40).
  7. Appareillage interrupteur d'installation selon une des revendications précédentes, caractérisé en ce qu'une résistance de limitation (43), sous la forme d'un fil résistant, est connectée en parallèle avec la thermistance-PTC (36).
  8. Appareillage interrupteur d'installation selon une des revendications précédentes, caractérisé en ce que la thermistance-PTC (36) est connectée entre une borne de connexion (12) et le déclencheur thermique (20).
  9. Appareillage interrupteur d'installation selon une des revendications précédentes, caractérisé en ce que la thermistance-PTC (36) est connectée la borne de connexion (12) au moyen d'une patte de connexion (29) fixée à celle-ci.
  10. Appareillage interrupteur d'installation selon la revendication 8 ou 9, caractérisé en ce que la thermistance-PTC (36) est connectée au déclencheur thermique (20) au moyen d'un fil torsadé (24).
  11. Appareillage interrupteur d'installation selon une des revendications précédentes, caractérisé en ce que le fil résistant (43) est connecté à une extrémité à la patte de connexion (29) et à l'autre extrémité au fil torsadé (24).
EP97105731A 1996-04-12 1997-04-07 Appareillage interrupteur d'installation électrique Expired - Lifetime EP0801410B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19614438A DE19614438A1 (de) 1996-04-12 1996-04-12 Elektrisches Installationsschaltgerät
DE19614438 1996-04-12

Publications (3)

Publication Number Publication Date
EP0801410A2 EP0801410A2 (fr) 1997-10-15
EP0801410A3 EP0801410A3 (fr) 1998-08-26
EP0801410B1 true EP0801410B1 (fr) 2003-01-22

Family

ID=7791060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105731A Expired - Lifetime EP0801410B1 (fr) 1996-04-12 1997-04-07 Appareillage interrupteur d'installation électrique

Country Status (2)

Country Link
EP (1) EP0801410B1 (fr)
DE (2) DE19614438A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2555217B1 (fr) 2011-08-02 2014-01-15 Abb Ag Système de limitation de courant

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE629692A (fr) * 1963-04-01
DE2328004A1 (de) * 1973-06-01 1974-12-19 Bbc Brown Boveri & Cie Kurzschlusschutzsystem fuer hohe schaltleistungen
DE3727357A1 (de) * 1987-08-17 1989-03-02 Asea Brown Boveri Verankerung von einbauteilen in elektrischen schaltgeraeten
DE4300909C2 (de) * 1993-01-15 1997-02-06 Abb Patent Gmbh Thermischer Auslöser, insbesondere für einen Leitungsschutzschalter
DE4308986A1 (de) * 1993-03-20 1994-09-22 Licentia Gmbh Schutzschalter
US5519558A (en) * 1993-12-30 1996-05-21 Eaton Corporation Three phase throttle current technique
DE29503285U1 (de) * 1995-02-27 1996-03-28 AEG Niederspannungstechnik GmbH, 31785 Hameln Schaltgerät

Also Published As

Publication number Publication date
EP0801410A2 (fr) 1997-10-15
DE59709171D1 (de) 2003-02-27
EP0801410A3 (fr) 1998-08-26
DE19614438A1 (de) 1997-12-11

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