EP0074576A2 - Combined protective fault-current switch and protective circuit breaker - Google Patents

Combined protective fault-current switch and protective circuit breaker Download PDF

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Publication number
EP0074576A2
EP0074576A2 EP82108121A EP82108121A EP0074576A2 EP 0074576 A2 EP0074576 A2 EP 0074576A2 EP 82108121 A EP82108121 A EP 82108121A EP 82108121 A EP82108121 A EP 82108121A EP 0074576 A2 EP0074576 A2 EP 0074576A2
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
protective
fault
tripping
winding
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Withdrawn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
EP82108121A
Other languages
German (de)
French (fr)
Other versions
EP0074576A3 (en
Inventor
Fritz Mentel
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 EP0074576A2 publication Critical patent/EP0074576A2/en
Publication of EP0074576A3 publication Critical patent/EP0074576A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • 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
    • H01H71/28—Electromagnetic mechanisms with windings acting in conjunction

Definitions

  • the invention relates to a combined residual current circuit breaker and circuit breaker, the individual poles of which are assigned to magnetic triggers for short-circuit tripping and which works with an electronic amplification for tripping in the event of a residual current.
  • an additional relay is required to trigger in the event of a fault current, which is controlled by an electronic amplifier.
  • a circuit breaker can then either open all switch contacts via a switch lock or act on a pair of switch contacts and open the switch contact pairs of the other poles via a mechanical coupling.
  • further components are required for the action on the switch lock or for the coupling.
  • Such measures also require additional space, which is reflected in more complex housings.
  • the invention has for its object to develop a combined circuit breaker of the type described so that you get by with fewer components and less space.
  • the magnetic release is provided with two windings: a first winding which is connected to the line of the waking conductor is switched on and a second winding, which is connected to the amplifier output.
  • a first winding which is connected to the line of the waking conductor is switched on
  • a second winding which is connected to the amplifier output.
  • the magnetic release 2 is provided with two windings, a first winding 6, which is connected to the line of the conductors to be monitored, the outer conductor 3 and the neutral conductor 4.
  • a second winding 7 of the magnetic release 2 is connected to the amplifier output 18.
  • the armature 9 of the magnetic release 2 is in engagement with a switching lock 10 via connecting means 11.
  • the switch contact devices 12 and 13 are opened via the connection 11.
  • Each of the switch contact devices can have a fixed contact piece and a movable contact piece.
  • a single-pole circuit breaker illustrates outer conductor 3, to which a phase is applied on the network side.
  • the excitation in the first winding 6 triggers the magnetic release 2 and in the event of a fault current, the excitation in the second winding 7.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The invention relates to a combined protective fault-current switch and protective circuit breaker (1), the individual poles (3) of which are allocated to magnetic trip devices (2) for tripping in response to short-circuits, and which operates with an electronic amplifier (8) for tripping in the event of a fault current. According to the invention it is provided that the magnetic trip device (2) is provided with two windings: a first winding (6), which is connected in the line of the conductor (3, 4) to be monitored, and a second winding (7), which is connected to the amplifier output (18). <IMAGE>

Description

Die Erfindung betrifft einen kombinierten Fehlerstromschutz- und Leitungsschutzschalter, dessen einzelnen Polen Magnetauslöser für Kurzschlußauslösung zugeordnet sind und der mit einer elektronischen Verstärkung zum Auslösen im Fehlerstromfall arbeitet.The invention relates to a combined residual current circuit breaker and circuit breaker, the individual poles of which are assigned to magnetic triggers for short-circuit tripping and which works with an electronic amplification for tripping in the event of a residual current.

Bei einem solchen auf dem Markt befindlichen Schutzschalter ist zur Auslösung im Fehlerstromfall ein zusätzliches Relais erforderlich, das über einen elektronischen Verstärker angesteuert wird. Allgemein kann man bei einem solchen Schutzschalter dann entweder über ein Schaltschloß alle Schaltkontakte öffnen oder auf ein Schaltkontaktpaar einwirken und die Schaltkontaktpaare der weiteren Pole über eine mechanische Kopplung öffnen. Hierbei werden außer dem gesonderten Relais weitere Bauteile für die Einwirkung auf das Schaltschloß bzw. für die Kopplung benötigt. Solche Maßnahmen benötigen außerdem zusätzlichen Raum, was sich in aufwendigeren Gehäusen niederschlägt.With such a circuit breaker on the market, an additional relay is required to trigger in the event of a fault current, which is controlled by an electronic amplifier. In general, such a circuit breaker can then either open all switch contacts via a switch lock or act on a pair of switch contacts and open the switch contact pairs of the other poles via a mechanical coupling. In addition to the separate relay, further components are required for the action on the switch lock or for the coupling. Such measures also require additional space, which is reflected in more complex housings.

Der Erfindung liegt die Aufgabe zugrunde, einen kombinierten Schutzschalter der eingangs geschilderten Art so weiterzuentwickeln, daß man mit weniger Bauteilen und mit geringerem Raum auskommt.The invention has for its object to develop a combined circuit breaker of the type described so that you get by with fewer components and less space.

Die Lösung der geschilderten Aufgabe besteht darin, daß der Magnetauslöser mit zwei Wicklungen versehen ist: einer ersten Wicklung, die in den Leitungszug der zu überwachenden Leiter eingeschaltet ist und einer zweiten Wicklung, die an den Verstärkerausgang angeschlossen ist. Dadurch wird der ohnehin erforderliche Magnetauslöser doppelt genutzt und es erübrigt sich ein zusätzliches Relais zum Auslösen im Fehlerstromfall. Ein solcher Schutzschalter läßt sich wegen des eingesparten zusätzlichen Relais für die Fehlerstromauslösung in einem geringeren Gehäusevolumen unterbringen.The solution to the problem described is that the magnetic release is provided with two windings: a first winding which is connected to the line of the waking conductor is switched on and a second winding, which is connected to the amplifier output. This means that the magnetic release, which is required anyway, is used twice and there is no need for an additional relay for tripping in the event of a fault current. Such a circuit breaker can be accommodated in a smaller housing volume because of the additional relay that is saved for tripping the residual current.

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

  • Der kombinierte Schutzschalter 1 nach der Zeichnung weist einen Magnetauslöser 2 für Kurzschlußauslösung und einen elektronischen Verstärker 8 zum Auslösen im Fehlerstromfall auf. Die zu überwachenden Leiter, ein Außenleiter 3 und ein Neutralleiter 4 sind durch einen Summenstromwandler 5 durchgeführt. Im Ausführungsbeispiel ist also ein einpoliger Schutzschalter veranschaulicht.
The invention will be explained in more detail with reference to an exemplary embodiment shown roughly schematically in the drawing:
  • The combined circuit breaker 1 according to the drawing has a magnetic release 2 for short-circuit release and an electronic amplifier 8 for tripping in the event of a fault current. The conductors to be monitored, an outer conductor 3 and a neutral conductor 4 are implemented by a summation current transformer 5. A single-pole circuit breaker is thus illustrated in the exemplary embodiment.

Der Magnetauslöser 2 ist mit zwei Wicklungen versehen, einer ersten Wicklung 6, die in den Leitungszug der zu überwachenden Leiter, des Außenleiters 3 und des Neutralleiters 4, eingeschaltet ist. Eine zweite Wicklung 7 des Magnetauslösers 2 ist an den Verstärkerausgang 18 angeschlossen.The magnetic release 2 is provided with two windings, a first winding 6, which is connected to the line of the conductors to be monitored, the outer conductor 3 and the neutral conductor 4. A second winding 7 of the magnetic release 2 is connected to the amplifier output 18.

Der Anker 9 des Magnetauslösers 2 steht mit einem Schaltschloß 10 über Verbindungsmittel 11 in Eingriffverbindung. Wenn das Schaltschloß 10 entklinkt wird, werden die Schaltkontaktvorrichtungen 12 und 13 über die Verbindung 11 geöffnet. Jede der Schaltkontaktvorrichtungen kann ein Festkontaktstück und ein bewegliches Kontaktstück aufweisen. Im Ausführungsbeispiel ist mit einem Außenleiter 3, an dem netzseitig eine Phase anliegt, ein einpoliger Schutzschalter veranschaulicht.The armature 9 of the magnetic release 2 is in engagement with a switching lock 10 via connecting means 11. When the switch lock 10 is released, the switch contact devices 12 and 13 are opened via the connection 11. Each of the switch contact devices can have a fixed contact piece and a movable contact piece. In the exemplary embodiment is with a A single-pole circuit breaker illustrates outer conductor 3, to which a phase is applied on the network side.

Bei einem Kurzschluß führt die Erregung in der ersten Wicklung 6 zum Ansprechen des Magnetauslösers 2 und in einem Fehlerstromfall die Erregung in der zweiten Wicklung 7.In the event of a short circuit, the excitation in the first winding 6 triggers the magnetic release 2 and in the event of a fault current, the excitation in the second winding 7.

Claims (1)

Kombinierter Fehlerstromschutz- und Leitungsschutzschal- ter (1), dessen einzelnen Polen (3) Magnetauslöser (2) für Kurzschlußauslösung zugeordnet sind und der mit einem elektronischen Verstärker (8) zum Auslösen im Fehlerstromfall arbeitet, dadurch gekennzeich- net, daß der Magnetauslöser (2) mit zwei Wicklungen versehen ist: einer ersten Wicklung (6), die in den Leitungszug der zu überwachenden Leiter (3, 4) eingeschaltet ist und einer zweiten Wicklung (7), die an den Verstärkerausgang (18) angeschlossen ist.Combined residual current circuit breaker and circuit breaker (1), the individual poles (3) of which are assigned magnetic triggers (2) for short-circuit tripping and which works with an electronic amplifier (8) for tripping in the event of a residual current, characterized in that the magnetic tripping device (2 ) is provided with two windings: a first winding (6) which is switched on in the line of the conductors (3, 4) to be monitored and a second winding (7) which is connected to the amplifier output (18).
EP82108121A 1981-09-14 1982-09-02 Combined protective fault-current switch and protective circuit breaker Withdrawn EP0074576A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3136412 1981-09-14
DE19813136412 DE3136412A1 (en) 1981-09-14 1981-09-14 COMBINED FAULT CURRENT AND CIRCUIT BREAKER

Publications (2)

Publication Number Publication Date
EP0074576A2 true EP0074576A2 (en) 1983-03-23
EP0074576A3 EP0074576A3 (en) 1985-01-30

Family

ID=6141613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108121A Withdrawn EP0074576A3 (en) 1981-09-14 1982-09-02 Combined protective fault-current switch and protective circuit breaker

Country Status (3)

Country Link
EP (1) EP0074576A3 (en)
JP (1) JPS5857241A (en)
DE (1) DE3136412A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103167A1 (en) * 1982-08-19 1984-03-21 BROWN, BOVERI & CIE Aktiengesellschaft Circuit breaker with leakage current release
WO2002043095A1 (en) * 2000-11-23 2002-05-30 Abb Patent Gmbh Electrical breaker device for current leakage, current overload and short-circuit protection
WO2006008273A1 (en) * 2004-07-19 2006-01-26 Siemens Aktiengesellschaft Circuit breaker with a narrow structure
WO2008112901A2 (en) * 2007-03-13 2008-09-18 Carling Technologies, Inc. Circuit breakers with ground fault and overcurrent trip
CN102237229A (en) * 2010-04-26 2011-11-09 陈昭晖 Circuit breaker tripper
US8174804B2 (en) 2007-03-13 2012-05-08 Carling Technologies, Inc. Circuit breakers with ground fault and overcurrent trip
CN101656180B (en) * 2008-08-18 2012-08-22 湖北盛佳电器设备有限公司 Electromagnetic short circuit protection breaker
WO2020240097A1 (en) * 2019-05-29 2020-12-03 Hager-Electro Sas Electric line (l) protection device for detecting a leakage fault, a short-circuit, fault, an overcurrent fault and an arc fault

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19721591A1 (en) * 1997-05-23 1998-11-26 Maier & Cie C Current limiting switch
DE10120189A1 (en) * 2001-04-24 2002-11-14 Prodex Technologie Gmbh Protecting switching device with electromagnetic triggering has excess current trigger with magnetic windings that interacts with switch lock to bring it from contact position to open position
DE10211902A1 (en) * 2002-03-18 2003-10-02 Eti Elektroelement Dd Miniature circuit breaker with fault current cut-off
DE102021214611B3 (en) 2021-12-17 2023-03-23 Ellenberger & Poensgen Gmbh Circuit breaker and motor vehicle with such a circuit breaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1508704A (en) * 1966-01-25 1968-01-05 Uninorm Anstalt Improvements to circuit breakers
DE1538370A1 (en) * 1966-10-18 1970-02-12 Hans Arnhold Circuit breaker with electromagnetic, thermal and fault protection release
DE1963708A1 (en) * 1969-06-05 1970-12-17 Heinemann Electric Co Electromagnetically actuated device, in particular breaker, relay or the like.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1508704A (en) * 1966-01-25 1968-01-05 Uninorm Anstalt Improvements to circuit breakers
DE1538370A1 (en) * 1966-10-18 1970-02-12 Hans Arnhold Circuit breaker with electromagnetic, thermal and fault protection release
DE1963708A1 (en) * 1969-06-05 1970-12-17 Heinemann Electric Co Electromagnetically actuated device, in particular breaker, relay or the like.

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0103167A1 (en) * 1982-08-19 1984-03-21 BROWN, BOVERI & CIE Aktiengesellschaft Circuit breaker with leakage current release
WO2002043095A1 (en) * 2000-11-23 2002-05-30 Abb Patent Gmbh Electrical breaker device for current leakage, current overload and short-circuit protection
US7088207B2 (en) 2000-11-23 2006-08-08 Abb Patent Gmbh Electrical switching device for fault-current, overcurrent and short-circuit current position
WO2006008273A1 (en) * 2004-07-19 2006-01-26 Siemens Aktiengesellschaft Circuit breaker with a narrow structure
US7835120B2 (en) 2007-03-13 2010-11-16 Carling Technologies, Inc. Circuit breakers with ground fault and overcurrent trip
WO2008112901A3 (en) * 2007-03-13 2008-12-04 Carling Technologies Inc Circuit breakers with ground fault and overcurrent trip
WO2008112901A2 (en) * 2007-03-13 2008-09-18 Carling Technologies, Inc. Circuit breakers with ground fault and overcurrent trip
US8174804B2 (en) 2007-03-13 2012-05-08 Carling Technologies, Inc. Circuit breakers with ground fault and overcurrent trip
CN101656180B (en) * 2008-08-18 2012-08-22 湖北盛佳电器设备有限公司 Electromagnetic short circuit protection breaker
CN102237229A (en) * 2010-04-26 2011-11-09 陈昭晖 Circuit breaker tripper
WO2020240097A1 (en) * 2019-05-29 2020-12-03 Hager-Electro Sas Electric line (l) protection device for detecting a leakage fault, a short-circuit, fault, an overcurrent fault and an arc fault
CN114207972A (en) * 2019-05-29 2022-03-18 黑格尔电镀物品股份公司 Electrical line (L) protection device for detecting leakage, short-circuit, overcurrent and arc faults
AU2019447727B2 (en) * 2019-05-29 2022-12-08 Hager-Electro Sas Electric line (L) protection device for detecting a leakage fault, a short-circuit, fault, an overcurrent fault and an arc fault
CN114207972B (en) * 2019-05-29 2023-08-01 黑格尔电镀物品股份公司 Electrical line (L) protection device for detecting leakage, short-circuit, overcurrent and arc faults

Also Published As

Publication number Publication date
JPS5857241A (en) 1983-04-05
EP0074576A3 (en) 1985-01-30
DE3136412A1 (en) 1983-03-24

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Inventor name: MENTEL, FRITZ