EP1978541A2 - Contacteur - Google Patents

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Publication number
EP1978541A2
EP1978541A2 EP08002415A EP08002415A EP1978541A2 EP 1978541 A2 EP1978541 A2 EP 1978541A2 EP 08002415 A EP08002415 A EP 08002415A EP 08002415 A EP08002415 A EP 08002415A EP 1978541 A2 EP1978541 A2 EP 1978541A2
Authority
EP
European Patent Office
Prior art keywords
auxiliary
switching bridge
main
contacts
intermediate 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.)
Withdrawn
Application number
EP08002415A
Other languages
German (de)
English (en)
Other versions
EP1978541A3 (fr
Inventor
Karsten Gerving
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.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
Eaton Industries GmbH
Kloeckner Moeller 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 Moeller GmbH, Eaton Industries GmbH, Kloeckner Moeller GmbH filed Critical Moeller GmbH
Publication of EP1978541A2 publication Critical patent/EP1978541A2/fr
Publication of EP1978541A3 publication Critical patent/EP1978541A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/543—Auxiliary switch inserting resistor during closure of contactor

Definitions

  • the invention relates to a contactor, in particular capacitor contactor, which comprises a circuit breaker with main contacts and a main switching bridge for opening and closing the main contacts, the main switching bridge between an off position, in which the main contacts are open, and an on position, in which the Main contacts are closed, adjustable, includes. Furthermore, the contactor comprises an auxiliary switch with auxiliary contacts and with an auxiliary switching bridge for opening and closing the auxiliary contacts, wherein the auxiliary switching bridge between an off position, in which the auxiliary contacts are open, and an on position, in which the auxiliary contacts are closed, is adjustable ,
  • Such a contactor is from the DE 10 2004 018 252 B3 known.
  • the auxiliary switch is firmly connected to the contactor and adapted accordingly to the contactor. Furthermore, the contactor is operated manually via an actuating slide, which operates sequentially first the auxiliary switch and then the circuit breaker.
  • auxiliary switches that can be releasably attached to a circuit breaker if necessary.
  • the auxiliary switches have auxiliary switching bridges, which can be detachably connected to the main switching bridge of the circuit breaker in such a way that the auxiliary switching bridge is moved into its on position by adjusting the main switching bridge from its off position to its on position.
  • circuit breakers can be retrofitted with auxiliary switches if required. If in this case it is intended to advance the closing of the auxiliary contacts of the auxiliary switch, then special auxiliary switches adapted to the application must be used. Especially with capacitor contactors therefore specially adapted auxiliary switches must be used.
  • auxiliary contacts connect the current source via resistors to the capacitor, so that initially a reduced rise in current is recorded. Thereafter, the main contacts without intervening resistors delayed in time, so when the capacitor is already partially charged, closed.
  • the current increase during switch-on is thus significantly reduced.
  • auxiliary switches with a particularly large overfeed must be used.
  • Object of the present invention is to provide a contactor with a circuit breaker and auxiliary switch, in which a conventional not specially trained for capacitor contactors auxiliary switch can be used to achieve a sufficient lead of the auxiliary contacts of the auxiliary switch.
  • a contactor in particular capacitor contactor, comprising a circuit breaker with main contacts and with a main switching bridge for opening and closing the main contacts, wherein the main switching bridge between an off position, in which the main contacts are opened, and an on position, in which the main contacts are closed, is adjustable, an auxiliary switch having auxiliary contacts and an auxiliary switching bridge for opening and closing the auxiliary contacts, the auxiliary switching bridge being adjustable between an off position in which the auxiliary contacts are open and an on position in which the auxiliary contacts are closed; an intermediate element which is supported between an actuating surface of the main switching bridge and a holding surface of the auxiliary switching bridge, the auxiliary switching bridge being held in the off position of the main switching bridge in an intermediate position lying between the off position and the on position in which the auxiliary contacts are opened and is achieved by adjusting the main switching bridge from its off position to its on position, the auxiliary switching bridge in its on position, solved.
  • this contactor can be a conventional non-leading or slightly leading auxiliary switch not specifically designed for use in a capacitor contactor. Because an intermediate element is provided between the main switching bridge and the auxiliary switching bridge, the auxiliary switching bridge is not in the off position of the main switching bridge in its structurally predetermined off position, but is already preferred in the direction of the on position. It is located in an intermediate position between the structurally predetermined off position and its on position, wherein the auxiliary contacts are not yet closed. The adjustment path from the intermediate position to the on position is less than the adjustment path from the off position to the on position. Thus, when transferring the main switching bridge from the off position to the on position, the auxiliary contacts are closed earlier than when used without an intermediate element. Accordingly, either non-leading or slightly leading auxiliary switches, which would normally not be sufficient for capacitor contactors, may be used. As a result, not specially designed for capacitor contactors auxiliary switch must be used.
  • the actuating surface and the holding surface in the off position of the main switching bridge are kept spaced from each other.
  • the intermediate element is designed in the form of a spring element.
  • the intermediate element allows a compensating movement between the main switching bridge and the auxiliary switching bridge at the time when the auxiliary switching bridge has already reached its on position and the main switching bridge still has to perform an adjustment to reach their on position.
  • the intermediate element is compressed on further adjustment of the main switching bridge starting from the position in which the auxiliary switching bridge has already reached its on position to the on position. Therefore, no separate compensation means must be provided.
  • the intermediate element may have a fastening portion, with which it is fixedly connected to one of the switching bridges, and at least one spring arm with which it is supported against the other switching bridge springs.
  • the intermediate element is made of sheet metal, it takes a very compressed state low altitude.
  • no further compensation element is required due to manufacturing tolerances and a customary game between the main switching bridge and the auxiliary switching bridge.
  • the intermediate element is firmly connected to the main switching bridge, as well as that it is firmly connected to the auxiliary switching bridge.
  • FIG. 1 shows a circuit breaker 1 with a guided in a housing 55 main switching bridge 2 for opening and closing of main contacts.
  • An auxiliary switch 3 is detachably connectable to the housing 55 of the circuit breaker 1.
  • the auxiliary switch 3 has a switching bridge guide 4, in which an auxiliary switching bridge, not shown here, is provided for opening and closing auxiliary contacts. Further, a Intermediate element 5 shown, which is connectable to the main switching bridge 2.
  • the auxiliary switch 3 can be connected to the main switch 1 via a type of dovetail guide.
  • a guide 6 is provided in the housing 55, on which the auxiliary switch 3 can be pushed and fixed in an insertion direction S.
  • the guide 6 is designed as a recess in the housing 55 and forms two in the insertion direction S extending and opposite guide trailing cuts 7, 8.
  • the auxiliary switch 3 has four projecting guide arms 9, 10, 11, 12, which are arranged in the insertion direction arranged in pairs one behind the other and dive into the guide 6.
  • On the guide arms 9, 10, 11, 12 each projecting guide projections 13, 14, 15, 16 are provided to a guide trailing section 7, 8, which engage behind the guide intersections 7, 8.
  • the main switching bridge 2 and the auxiliary switching bridge as explained in more detail below, connected to each other.
  • the main switching bridge 2 in the region of the guide 6 a driver 24, with which the auxiliary switching bridge is connected.
  • the main switching bridge 2 is in the direction of a parking axis X between an off position, as in FIG. 1 illustrated, and an immersed in the housing 55 on position adjustable. This is done electro-mechanically. As a result, located in the housing 55 main contacts are opened and closed, the main contacts are open in the off position and closed in the on position.
  • the circuit breaker 1 according to FIG. 1 Three power lines are switched. For this purpose, the circuit breaker 1 first main contact terminals 17, 18, 19 and second to the first main contact terminals 17, 18, 19 remote second main contact terminals, which are respectively electrically connected in pairs.
  • the auxiliary switching bridge in the switching bridge guide 4 can be adjusted in the direction of the adjusting axis X between an off position and an on position. Since the auxiliary switching bridge is connected in the pushed state of the auxiliary switch 3 with the main switching bridge 2, the auxiliary switching bridge is operated by adjusting the main switching bridge 2. As a result, located in the auxiliary switch 3 auxiliary contacts are opened and closed, the auxiliary contacts in the Off position open and closed in the on position.
  • the auxiliary switch 3 according to FIG. 1 Four power lines are switched.
  • the auxiliary switch 3 has first auxiliary contact terminals 20, 21, 22, 23 and second second auxiliary contact terminals facing away from the first auxiliary contact terminals 20, 21, 22, 23, which are each electrically connected in pairs.
  • FIG. 2 shows the main switching bridge 2 in a perspective view.
  • the driver 24 has a base web 25 running along the control axis X and a first driver projection 26 and a second driver projection 27 remote from the base web 25 at the end of the base web 25.
  • the first driver projection 26 forms a first actuating surface 28 and the second driver projection 27 forms a second actuating surface 29.
  • the driver 24 is thus viewed in section T-shaped.
  • the intermediate element 5 is fixed and is supported against the actuating surfaces 28, 29 from.
  • FIG. 3 shows the connection between the main switching bridge 2 and an auxiliary switching bridge 30.
  • the auxiliary switching bridge 30 has two to the main switching bridge 2 facing holding arms 31, 32, namely a first arm 31 and a second arm 32, on.
  • a first holding projection 33 and on the second holding arm 32 a second holding projection 34 are provided, which are arranged opposite one another.
  • the first holding projection 33 forms a first holding surface 35, which is indirectly supported via the intermediate element 5, as will be described below, against the first actuating surface 28.
  • the second holding projection 34 forms a second holding surface 36, which is indirectly supported via the intermediate element 5 against the second actuating surface 29.
  • FIG. 4 shows the intermediate element 5 in a perspective view.
  • the intermediate element 5 is designed as a spring element made of sheet metal, preferably spring steel. It comprises a fastening portion 37, with which it is fastened to the driver of the main switching bridge. Further, it includes a first spring arm 38 and a second spring arm 39 which, together with the attachment portion 37, project in a direction from a base portion 40 of the intermediate member 5.
  • the two spring arms 38, 39 are arranged on both sides of the base portion 40.
  • the attachment section 37 and the base portion 40 form a main plane from which the spring arms 38, 39, starting from the base portion 40 to free ends 52, 53 of the spring arms 38, 39 continuously remove.
  • FIG. 5 shows for this purpose a section along the section line VV according to FIG. 3 .
  • the base web 25 has two side walls 41, 42, which are arranged at a distance from one another and are connected to one another by a connecting web 43.
  • a fastening opening 44 is provided, into which the fastening portion 40 of the intermediate element 5 is inserted.
  • the attachment portion 40 has a slot 45, so that two elastically resilient latching arms 46, 47 are formed.
  • the latching arms 46, 47 have latching projections 48, 49 directed away from one another with latching surfaces 50, 51.
  • the intermediate element 5 can be inserted into the fastening opening 44 with the fastening section 25 in the insertion direction S, wherein the width of the fastening opening 44 corresponds to the width of the fastening section 25.
  • the latching projections 48, 49 pass through the connecting web 43, the latching arms 46, 47 are elastically deformed relative to one another.
  • the latching projections 48, 49 have completely passed the connecting web 43, so that the latching arms 46, 47 again assume their original position and the latching surfaces 50, 51 are supported against the connecting web 43.
  • the intermediate element 5 is secured against pulling out.
  • FIG. 6 which is a section along the section line VI-VI according to FIG. 3 shows, it can be seen how the spring arms 38 are supported against the support surfaces 36.
  • the main switching bridge 2 is shown in the off position.
  • the auxiliary switching bridge 30 is held in an intermediate position between its off position and its on position with bias of the spring arms 38.
  • the main switching bridge 2 is adjusted in the direction of its on position, the auxiliary switching bridge 30 is first transferred to its on position up to an intermediate position of the main switching bridge 2.
  • the intermediate element 5 is as in FIG.
  • the auxiliary switching bridge 30 no longer moves, so that a compensating movement between the main switching bridge 2 and the auxiliary switching bridge 30 must be made. This is achieved by compressing the intermediate element 5.
  • the spring arms 38 are elastically deformed until they lie in the plane of the base portion 40 and the attachment portion 37. Since the spring arms 38 are bent at their free ends 52 in the direction of the plane of the base portion 40 and the mounting portion 37, the driver 24 has a recess 54 into which the free ends 52 can dip.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP08002415A 2007-04-02 2008-02-09 Contacteur Withdrawn EP1978541A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710016147 DE102007016147B4 (de) 2007-04-02 2007-04-02 Schaltschütz

Publications (2)

Publication Number Publication Date
EP1978541A2 true EP1978541A2 (fr) 2008-10-08
EP1978541A3 EP1978541A3 (fr) 2010-05-26

Family

ID=39495058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002415A Withdrawn EP1978541A3 (fr) 2007-04-02 2008-02-09 Contacteur

Country Status (2)

Country Link
EP (1) EP1978541A3 (fr)
DE (1) DE102007016147B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013164020A1 (fr) * 2012-05-02 2013-11-07 Siemens Aktiengesellschaft Ensemble commutateur électrique conçu pour des charges électriques tirant des courants transitoires élevés

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004018252B3 (de) 2004-04-15 2006-02-02 Moeller Gmbh Voreilender Hilfsschalter für Schutzschalter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1003327B (de) * 1955-02-07 1957-02-28 Licentia Gmbh Installationsselbstschalter in Schmalbauform mit magnetischer und thermischer Ausloesung und einem oder mehreren abschaltbaren Hilfskontakten fuer allgemeine Leitungsschutz- oder Spezialzwecke
AT254305B (de) * 1960-11-21 1967-05-26 Es Eupen Atelier De Const Elec Elektromagnetisches Schütz
FR2667439B1 (fr) * 1990-09-27 1992-11-27 Telemecanique Electrique Appareil interrupteur pour l'alimentation de charges capacitives.
DE10009499C1 (de) * 2000-02-29 2001-09-27 Siemens Ag Hilfsbaugruppe für ein elektromechanisches Schaltgerät und hiermit korrespondierendes elektromechanisches Schaltgerät
DE10315243B3 (de) * 2003-04-03 2004-08-26 Siemens Ag Elektromechanisches Schaltgerät

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004018252B3 (de) 2004-04-15 2006-02-02 Moeller Gmbh Voreilender Hilfsschalter für Schutzschalter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013164020A1 (fr) * 2012-05-02 2013-11-07 Siemens Aktiengesellschaft Ensemble commutateur électrique conçu pour des charges électriques tirant des courants transitoires élevés

Also Published As

Publication number Publication date
DE102007016147A1 (de) 2008-10-09
DE102007016147B4 (de) 2010-05-12
EP1978541A3 (fr) 2010-05-26

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