EP0047901A1 - Ground fault circuit breaker with adjustable trigger - Google Patents

Ground fault circuit breaker with adjustable trigger Download PDF

Info

Publication number
EP0047901A1
EP0047901A1 EP81106741A EP81106741A EP0047901A1 EP 0047901 A1 EP0047901 A1 EP 0047901A1 EP 81106741 A EP81106741 A EP 81106741A EP 81106741 A EP81106741 A EP 81106741A EP 0047901 A1 EP0047901 A1 EP 0047901A1
Authority
EP
European Patent Office
Prior art keywords
transmission element
circuit breaker
magnet
fault circuit
armature
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Withdrawn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
EP81106741A
Other languages
German (de)
French (fr)
Inventor
Dieter-Michael Grützner
Josef Wegele
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 EP0047901A1 publication Critical patent/EP0047901A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7463—Adjusting only the electromagnetic mechanism
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part

Definitions

  • the invention relates to a residual current circuit breaker, to the sum current transformer an adjustable trigger magnet is arranged on the secondary side, which acts with its transmission element on the transmission element of a switch lock. Such a structure is common with residual current circuit breakers.
  • Residual current circuit breakers not only have to function properly, but the service life of the electrical release, the holding magnet, should also be long.
  • Usual residual current circuit breakers have a large tripping path. Due to this large release path, the large opening angle between the transmission members, large acceleration forces occur when the armature of the holding magnet is opened and when it is reattached. This places a heavy load on the pole faces, which affects the service life and functional reliability.
  • the invention has for its object to develop a residual current circuit breaker with a particularly long life and functional reliability.
  • the solution to the described problem is that an adjusting means is arranged between the transmission element of the release magnet and the transmission element of the switching lock and that the holding magnet is limited by a stop in its actuation path of the armature.
  • Such an adjusting means for example an adjusting screw, which is arranged in the transmission member of the holding magnet and the tip of which rests on the transmission member of the switching lock, allows the travel of the armature to be greatly limited by a fixed stop. Nevertheless, a safe transmission of the torque from the electrical release, the holding magnet, to the switch lock is guaranteed with every tolerance position.
  • the residual current circuit breaker 1 has a summation current transformer 2, a tripping magnet 3, e.g. B. a holding magnet, and a switch lock 4 and terminals 5 and switch contacts. It can be switched manually on the manual control element 6.
  • the transmission element 7 of the release magnet 3 is provided with an adjusting means 8, via which the release magnet acts on the transmission element 9 of the switching mechanism 4 and unlatches it.
  • the trigger magnet 3 is in his Tripping path of the armature is limited by a stop 10.
  • FIG. 2 illustrates a possible arrangement of the adjusting means 8 designed as an adjusting screw in the release magnet 3.
  • the limit stop 10 according to FIG. 3 limits the release path 11 of the armature 12 of the release magnet 3.
  • FIG. 3 the switch-on position of the release magnet and in FIG. 4 the switch-off position when the residual current circuit breaker has responded are shown.
  • the armature 12 bears against the pole faces 13 of the release magnet in the switched-on position.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

The invention relates to an earth fault circuit breaker, on the secondary of the summing current transformer of which is arranged an adjustable trip magnet, the transmission element of which acts on the transmission element of the latching mechanism. According to the invention it is provided that a means of adjustment (8) is arranged between the transmission element (7) of the trip magnet (3) and the transmission element (9) of the latching mechanism (4), and that the trip magnet (3) is limited in its tripping movement (11) of the armature (12) by a stop (10). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Fehlerstromschutzschalter, zu dessen Summenstromwandler sekundärseitig ein justierbarer Auslösemagnet angeordnet ist, der mit seinem Übertragungsglied auf das Übertragungsglied eines Schaltschlosses einwirkt. Ein solcher Aufbau ist bei Fehlerstromschutzschaltern üblich.The invention relates to a residual current circuit breaker, to the sum current transformer an adjustable trigger magnet is arranged on the secondary side, which acts with its transmission element on the transmission element of a switch lock. Such a structure is common with residual current circuit breakers.

Fehlerstromschutzschalter müssen nicht nur einwandfrei funktionieren, sondern auch die Lebensdauer des elektrischen Auslösers, des Haltemagneten, soll groß sein. Übliche Fehlerstromschutzschalter weisen einen großen Auslöseweg auf. Durch diesen großen Auslöseweg, den großen Öffnungswinkel zwischen den Übertragungsgliedern, treten beim öffnen und beim Wiederanlegen des Ankers des Haltemagneten große Beschleunigungskräfte auf. Dadurch werden die Polflächen stark beansprucht, was Lebensdauer und Funktionssicherheit beeinträchtigt.Residual current circuit breakers not only have to function properly, but the service life of the electrical release, the holding magnet, should also be long. Usual residual current circuit breakers have a large tripping path. Due to this large release path, the large opening angle between the transmission members, large acceleration forces occur when the armature of the holding magnet is opened and when it is reattached. This places a heavy load on the pole faces, which affects the service life and functional reliability.

Der Erfindung liegt die Aufgabe zugrunde, einen Fehlerstromschutzschalter mit besonders großer Lebensdauer und Funktionssicherheit zu entwickeln.The invention has for its object to develop a residual current circuit breaker with a particularly long life and functional reliability.

Die Lösung der geschilderten Aufgabe besteht nach der Erfindung darin, daß zwischen dem Übertragungsglied des Auslösemagneten und dem Übertragungsglied des Schaltschlosses ein Justiermittel nachgeordnet ist und daß der Haltemagnet in seinem Auslöseweg des Ankers durch einen Anschlag begrenzt ist.According to the invention, the solution to the described problem is that an adjusting means is arranged between the transmission element of the release magnet and the transmission element of the switching lock and that the holding magnet is limited by a stop in its actuation path of the armature.

Ein solches Justiermittel, beispielsweise eine Justierschraube, die im Übertragungsglied des Haltemagneten angeordnet ist und deren Spitze auf dem Übertragungsglied des Schaltschlosses aufsteht, erlaubt es, den Auslöseweg des Ankers durch einen festen Anschlag stark zu begrenzen. Dennoch wird bei jeder Toleranzlage eine sichere Übertragung des Drehmomentes vom elektrischen Auslöser, des Haltemagneten, zum Schaltschloß gewährleistet.Such an adjusting means, for example an adjusting screw, which is arranged in the transmission member of the holding magnet and the tip of which rests on the transmission member of the switching lock, allows the travel of the armature to be greatly limited by a fixed stop. Nevertheless, a safe transmission of the torque from the electrical release, the holding magnet, to the switch lock is guaranteed with every tolerance position.

Die Erfindung soll anhand eines in der Zeichnung grob schematisch wiedergegebenen Ausführungsbeispiels näher erläutert werden:

  • In Fig. 1 ist ein Fehlerstromschutzschalter bei einem Längsschnitt dicht unter der Seitenwand des Gehäuses dargestellt. Eine Platine, die Schaltschloß und Haltemagneten unter sich aufnimmt, ist teilweise aufgebrochen wiedergegeben.
  • In Fig. 2 ist ein Haltemagnet in Seitenansicht, längs der Achse seines Ankers, dargestellt.
  • In Fig. 3 sind die Übertragungsglieder und der Anschlag für den Anker des Haltemagneten in der Einschaltstellung wiedergegeben.
  • In Fig. 4 sind die Bauteile nach Fig. 3 in der Ausschaltstellung dargestellt.
The invention will be explained in more detail with reference to an exemplary embodiment shown roughly schematically in the drawing:
  • In Fig. 1, a residual current circuit breaker is shown in a longitudinal section just below the side wall of the housing. A circuit board, which accommodates the switch lock and the holding magnet, is partially broken open.
  • In Fig. 2, a holding magnet is shown in side view, along the axis of its armature.
  • In Fig. 3, the transmission members and the stop for the armature of the holding magnet are shown in the switched-on position.
  • In Fig. 4, the components of Fig. 3 are shown in the off position.

Der Fehlerstromschutzschalter 1 nach Fig. 1 weist einen Summenstromwandler 2, einen Auslösemagneten 3, z. B. einen Haltemagneten, und ein Schaltschloß 4 sowie Anschlußklemmen 5 und Schaltkontakte auf. Er kann von Hand am Handbedienungsglied 6 geschaltet werden.The residual current circuit breaker 1 according to FIG. 1 has a summation current transformer 2, a tripping magnet 3, e.g. B. a holding magnet, and a switch lock 4 and terminals 5 and switch contacts. It can be switched manually on the manual control element 6.

Das Übertragungsglied 7 des Auslösemagneten 3 ist mit einem Justiermittel 8 versehen, über das der Auslösemagnet auf das Übertragungsglied 9 des Schaltschlosses 4 einwirkt und dieses entklinkt. Der Auslösemagnet 3 ist in seinem Auslöseweg des Ankers durch einen Anschlag 10 begrenzt.The transmission element 7 of the release magnet 3 is provided with an adjusting means 8, via which the release magnet acts on the transmission element 9 of the switching mechanism 4 and unlatches it. The trigger magnet 3 is in his Tripping path of the armature is limited by a stop 10.

Aus Fig. 2 ist eine mögliche Anordnung des als Justierschraube ausgebildeten Justiermittels 8 im Auslösemagneten 3 veranschaulicht. Der Anschlag 10 nach Fig. 3 begrenzt den Auslöseweg 11 des Ankers 12 des Auslösemagneten 3. In Fig. 3 ist die Einschaltstellung des Auslösemagneten und in Fig. 4 die Ausschaltstellung, wenn der Fehlerstromschutzschalter also angesprochen hat, wiedergegeben. Der Anker 12 liegt in der Einschaltstellung an den Polflächen 13 des Auslösemagneten an.FIG. 2 illustrates a possible arrangement of the adjusting means 8 designed as an adjusting screw in the release magnet 3. The limit stop 10 according to FIG. 3 limits the release path 11 of the armature 12 of the release magnet 3. In FIG. 3 the switch-on position of the release magnet and in FIG. 4 the switch-off position when the residual current circuit breaker has responded are shown. The armature 12 bears against the pole faces 13 of the release magnet in the switched-on position.

Claims (2)

1. Fehlerstromschutzschalter, zu dessen Summenstromwandler sekundärseitig ein justierbarer Auslösemagnet angeordnet ist, der mit seinem Übertragungsglied auf das Obertragungsglied des Schaltschlosses einwirkt, dadurch gekennzeichnet , daß zwischen dem Übertragungsglied (7) des Auslösemagneten (3) und dem Übertragungsglied (9) des Schaltschlosses (4) ein Justiermittel (8) angeordnet ist und daß der Auslösemagnet (3) in seinem Auslöseweg (11) des Ankers (12) durch einen Anschlag (10) begrenzt ist.1. Residual current circuit breaker, to whose total current transformer an adjustable trigger magnet is arranged on the secondary side, which acts with its transmission element on the transmission element of the switching mechanism, characterized in that between the transmission element (7) of the trigger magnet (3) and the transmission element (9) of the switching mechanism (4 ) an adjusting means (8) is arranged and that the release magnet (3) is limited in its release path (11) of the armature (12) by a stop (10). 2. Fehlerstromschutzschalter nach Anspruch 1, dadurch gekennzeichnet , daß als Justiermittel (8) im Übertragungsglied (7) des Auslösemagneten (3) eine Justierschraube angeordnet ist, deren Spitze auf dem Übertragungsglied (9) des Schaltschlosses (4) aufsteht.2. Residual current circuit breaker according to claim 1, characterized in that an adjusting screw is arranged as an adjusting means (8) in the transmission member (7) of the tripping magnet (3), the tip of which rests on the transmission member (9) of the switching mechanism (4).
EP81106741A 1980-09-12 1981-08-28 Ground fault circuit breaker with adjustable trigger Withdrawn EP0047901A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3034535 1980-09-12
DE19803034535 DE3034535A1 (en) 1980-09-12 1980-09-12 FAULT CURRENT PROTECTION SWITCH WITH ADJUSTABLE TRIGGER

Publications (1)

Publication Number Publication Date
EP0047901A1 true EP0047901A1 (en) 1982-03-24

Family

ID=6111833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106741A Withdrawn EP0047901A1 (en) 1980-09-12 1981-08-28 Ground fault circuit breaker with adjustable trigger

Country Status (4)

Country Link
EP (1) EP0047901A1 (en)
DE (1) DE3034535A1 (en)
DK (1) DK403881A (en)
ES (1) ES8206911A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931924A (en) * 2016-06-28 2016-09-07 北京人民电器厂有限公司 Small-size direct current breaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1553935A (en) * 1966-12-05 1969-01-17
FR2033397A1 (en) * 1969-02-26 1970-12-04 Westinghouse Electric Corp
US3944957A (en) * 1974-12-23 1976-03-16 General Electric Company Flux-transfer trip device for a circuit breaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1553935A (en) * 1966-12-05 1969-01-17
DE1588263A1 (en) * 1966-12-05 1970-12-10 Gen Electric Adjustable current release
FR2033397A1 (en) * 1969-02-26 1970-12-04 Westinghouse Electric Corp
US3944957A (en) * 1974-12-23 1976-03-16 General Electric Company Flux-transfer trip device for a circuit breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931924A (en) * 2016-06-28 2016-09-07 北京人民电器厂有限公司 Small-size direct current breaker
CN105931924B (en) * 2016-06-28 2018-01-26 北京人民电器厂有限公司 Small-sized DC circuit breaker

Also Published As

Publication number Publication date
DE3034535A1 (en) 1982-03-25
DK403881A (en) 1982-03-13
ES505411A0 (en) 1982-08-16
ES8206911A1 (en) 1982-08-16

Similar Documents

Publication Publication Date Title
EP0047847A1 (en) Protective circuit-breaking switch
EP0287752B1 (en) Electromagnetic switchgear with electromagnetic drive
DE2948959C2 (en) Electromagnetic switching device
DE19754072C1 (en) Switchgear unit consisting of a switchgear and a coupled leading auxiliary switch
WO1984001663A1 (en) Electric safety switch for apparatus
EP0813219B1 (en) Undervoltage release device
DE3823101A1 (en) Redundant tripping device
DE3037355A1 (en) CIRCUIT BREAKER COMPACT DESIGN WITH A RELEASE PIN
DE971476C (en) Electric circuit breaker with fault current release
EP0047901A1 (en) Ground fault circuit breaker with adjustable trigger
DE2234423A1 (en) AUTOMATIC INSTALLATION SWITCH IN SHELL CONSTRUCTION
DE3817528A1 (en) MOTOR STARTER WITH SHORT CIRCUIT PROTECTION
DE19735413B4 (en) Tripping device for a circuit breaker
EP0592007B1 (en) Switching device
DE10005825C2 (en) Low voltage electrical switch
DE3515158A1 (en) High-current overcurrent protection circuit breaker
DE8024476U1 (en) Residual current circuit breaker with adjustable release
DE2915169C3 (en) Auxiliary switch for circuit breaker
DE3423541C2 (en)
WO1999041760A1 (en) Electromagnetic current releasing device for electrical circuit breaker
DE906239C (en) Electromagnetic switch with self-holding contact
EP0310943A2 (en) Electric switch gear
DE19608765B4 (en) Electrical switching device
DE1169015B (en) Electrical circuit breakers with overcurrent, short-circuit and residual current releases
DE197617C (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811028

AK Designated contracting states

Designated state(s): AT DE FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19821226

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WEGELE, JOSEF

Inventor name: GRUETZNER, DIETER-MICHAEL