EP1916692A1 - Fehlerstromschutzschalter - Google Patents

Fehlerstromschutzschalter Download PDF

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Publication number
EP1916692A1
EP1916692A1 EP07012656A EP07012656A EP1916692A1 EP 1916692 A1 EP1916692 A1 EP 1916692A1 EP 07012656 A EP07012656 A EP 07012656A EP 07012656 A EP07012656 A EP 07012656A EP 1916692 A1 EP1916692 A1 EP 1916692A1
Authority
EP
European Patent Office
Prior art keywords
contacts
circuit breaker
residual current
current operated
operated circuit
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.)
Granted
Application number
EP07012656A
Other languages
English (en)
French (fr)
Other versions
EP1916692B1 (de
Inventor
Domenico Bosatelli
Sergio Pianezzola
Augusto Contardi
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.)
Gewiss SpA
Original Assignee
Gewiss SpA
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 Gewiss SpA filed Critical Gewiss SpA
Publication of EP1916692A1 publication Critical patent/EP1916692A1/de
Application granted granted Critical
Publication of EP1916692B1 publication Critical patent/EP1916692B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly

Definitions

  • the present invention relates to a residual current operated circuit breaker.
  • the residual current operated circuit breaker when it detects the presence of the fault current, releases the line, thus interrupting the power supply to the load or loads arranged downstream.
  • the residual current operated circuit breaker After the release of the residual current operated circuit breaker, and once the correct operating conditions for the system have been restored, the residual current operated circuit breaker must be reset.
  • the operating conditions often restore themselves spontaneously because the fault is of a transient type caused by overvoltages.
  • This reset normally occurs manually, by acting on an appropriately provided reset lever.
  • the conventional residual current operated circuit breakers are provided with a test button, by means of which it is possible to release the breaker, simulating a fault, in order to check the correct operation of the release system.
  • the aim of the present invention is to provide an improved residual current operated circuit breaker in which it is possible to perform the functional test without interrupting the supply of electric power to user devices.
  • an object of the invention is to provide a residual current operated circuit breaker which is highly reliable, relatively simple to provide and at competitive costs.
  • Another object of the invention is to provide a residual current operated circuit breaker which can be coupled to an appropriate device capable of performing the test periodically and in a fully automatic and autonomous manner, without operator interventions.
  • a residual current operated circuit breaker comprising a first terminal strip and a second terminal strip, associated respectively with moving contacts and fixed contacts, a control relay suitable to act on the mechanism for the opening of said moving contacts, in case of tripping, characterized in that said moving contacts comprise two separate series of contacts, a series of main contacts and a series of secondary or auxiliary contacts, which are supported on a single contact supporting member and can move independently so as to allow the flow of current between the first and second terminal strips when the main contacts are open, by virtue of the auxiliary contacts.
  • a residual current operated circuit breaker according to the invention has a box-like body 2, which has the classic standardized shape for mating with a DIN rail, not shown in the figure, by virtue of a mating means 3.
  • the body 2 has, on its front face, a protrusion 4 in which the actuation means, of a per se known type, is arranged, the means including a handle 5 suitable to actuate a mechanism for actuating the contacts.
  • the handle 5 is rigidly coupled to a rotor 55.
  • the actuation mechanism includes a motor lever 6 connected to the rotor 55 of the handle by means of a cross-member 7 and acting on a contact support 8 by virtue of a bar 9.
  • the contact support 8 is suitable to support two separate series of contacts: a series of main contacts 10 and a series of secondary or auxiliary contacts 11.
  • the main contacts 10 are four, with corresponding four secondary contacts 11.
  • the main contacts 10 and the secondary contacts 11 can move with respect to fixed contacts 12.
  • the secondary contacts 11 can move on the contact support 8 independently of the main contacts 10.
  • Each of the main contacts 10 has a presser spring 13 associated with the main contact and with the main shaft 8.
  • the presser spring 13 of the main contact 10, and a part of the main contact 10, are arranged within a respective first slot 14 formed in the contact support 8.
  • a second slot 20 is formed externally to a wall 15 in order to accommodate a respective secondary contact 11.
  • Each secondary contact 11 is actuated by an actuation shaft 16 by means of a bar 17 and is associated with a presser spring 18 by virtue of a lamina 19.
  • the main contacts 10 are actuated exclusively by the handle 5 of the residual current operated circuit breaker, while the secondary contacts 11 are actuated exclusively by a reset device 100, which is associated with the circuit breaker 1 by means of an actuation means, constituted by a cross-member 111, which engages the actuation shaft 16 of the secondary contacts, as shown schematically in Figure 23.
  • the reset device 100 has an engagement means 110, which is constituted by a seat in which it is possible to insert a contoured shaft suitable to engage the rotor 55 of the handle 5.
  • the residual current operated circuit breaker 1 includes, in a per se known manner, an actuation relay 30, which is suitable to act on the mechanism in order to open the contacts 10 and 11 if tripping occurs, and terminal strips 40 and 41 for ordinary electrical connections, which are connected respectively to the moving contacts 10, 11 and to the fixed contacts 12.
  • the circuit breaker has a test circuit mechanism which includes, in a per se known manner, a test button 50 acting on a test spring 51 to close the circuit and to trip the actuation mechanism that opens the contacts.
  • the breaker has a marker 60, which indicates the state of both the main and secondary contacts of the circuit breaker, with the usual colored indicator visible through an opening provided in the cover of the box-like body, and an electronic circuit 70 for controlling the operation of the system located downstream.
  • the remaining control circuit is within the block 100 of Figure 23.
  • the residual current operated circuit breaker has an emergency release coii, designated by the reference numeral 80, which is actuated by the electronic circuit so that it trips if the relay fails to operate and can also lock the residual current operated circuit breaker in the open condition.
  • the invention achieves the intended aim and objects, providing a residual current operated circuit breaker having a mechanical structure which is simplified and advantageous both in terms of reliability and in terms of low cost during production.

Landscapes

  • Breakers (AREA)
  • Processing Of Terminals (AREA)
  • Eye Examination Apparatus (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
EP07012656A 2006-10-23 2007-06-28 Fehlerstromschutzschalter Active EP1916692B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT002032A ITMI20062032A1 (it) 2006-10-23 2006-10-23 Interruttore differenziale

Publications (2)

Publication Number Publication Date
EP1916692A1 true EP1916692A1 (de) 2008-04-30
EP1916692B1 EP1916692B1 (de) 2009-12-16

Family

ID=38521162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07012656A Active EP1916692B1 (de) 2006-10-23 2007-06-28 Fehlerstromschutzschalter

Country Status (6)

Country Link
EP (1) EP1916692B1 (de)
CN (1) CN101170026B (de)
AT (1) ATE452417T1 (de)
DE (1) DE602007003794D1 (de)
ES (1) ES2338169T3 (de)
IT (1) ITMI20062032A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009155661A1 (en) * 2008-06-26 2009-12-30 Easytest Pty Ltd A bypass device for safety switch testing
CN101958207A (zh) * 2009-07-13 2011-01-26 汉斯科技有限公司 带有过电流保护的电流保护开关用释放机构
ITMI20120884A1 (it) * 2012-05-22 2013-11-23 Gewiss Spa Interruttore differenziale con dispositivo di autotest
EP2816583A1 (de) 2013-06-21 2014-12-24 GEWISS S.p.A. Reststromschutzschalter
DE102021212829A1 (de) 2021-11-16 2023-05-17 Walter Biersack Einrichtung zum Laden von Elektrofahrzeugen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4306231A1 (de) * 1993-02-27 1994-09-08 Abb Patent Gmbh Kontaktanordnung für einen Fehlerstromschutzschalter
EP0632477A2 (de) * 1993-06-22 1995-01-04 ABB ELETTROCONDUTTURE S.p.A. Einrichtung zum automatischen oder manuellen Testen eines Schutz-, Steuer- oder Meldegeräts
DE4432643A1 (de) * 1994-09-14 1996-03-21 Rainer Dipl Phys Berthold Kontaktanordnung für einen Fehlerstromschutzschalter
US5898146A (en) * 1997-09-18 1999-04-27 Eaton Corporation Molded case circuit breaker with modular crossbar
EP1562213A1 (de) * 2004-02-06 2005-08-10 GEWISS S.p.A. Sich selbst prüfender und wiedereinschaltender Differenzstromschutzschalter
JP2006014479A (ja) * 2004-06-25 2006-01-12 Matsushita Electric Works Ltd 回路保護装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10220622B4 (de) * 2002-05-08 2004-09-09 Siemens Ag Fehlerstrom-Schutzschalter
CN2715329Y (zh) * 2004-06-10 2005-08-03 上海精益电器厂有限公司 断路器动触头联接机构
CN1797645A (zh) * 2004-12-30 2006-07-05 上海力以电气有限公司 带微动开关引脚固定孔的磁环罩

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4306231A1 (de) * 1993-02-27 1994-09-08 Abb Patent Gmbh Kontaktanordnung für einen Fehlerstromschutzschalter
EP0632477A2 (de) * 1993-06-22 1995-01-04 ABB ELETTROCONDUTTURE S.p.A. Einrichtung zum automatischen oder manuellen Testen eines Schutz-, Steuer- oder Meldegeräts
DE4432643A1 (de) * 1994-09-14 1996-03-21 Rainer Dipl Phys Berthold Kontaktanordnung für einen Fehlerstromschutzschalter
US5898146A (en) * 1997-09-18 1999-04-27 Eaton Corporation Molded case circuit breaker with modular crossbar
EP1562213A1 (de) * 2004-02-06 2005-08-10 GEWISS S.p.A. Sich selbst prüfender und wiedereinschaltender Differenzstromschutzschalter
JP2006014479A (ja) * 2004-06-25 2006-01-12 Matsushita Electric Works Ltd 回路保護装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009155661A1 (en) * 2008-06-26 2009-12-30 Easytest Pty Ltd A bypass device for safety switch testing
CN101958207A (zh) * 2009-07-13 2011-01-26 汉斯科技有限公司 带有过电流保护的电流保护开关用释放机构
ITMI20120884A1 (it) * 2012-05-22 2013-11-23 Gewiss Spa Interruttore differenziale con dispositivo di autotest
EP2667398A1 (de) 2012-05-22 2013-11-27 GEWISS S.p.A. Reststrombetriebener Schutzschalter mit Selbstprüfungsvorrichtung
EP2816583A1 (de) 2013-06-21 2014-12-24 GEWISS S.p.A. Reststromschutzschalter
DE102021212829A1 (de) 2021-11-16 2023-05-17 Walter Biersack Einrichtung zum Laden von Elektrofahrzeugen

Also Published As

Publication number Publication date
ATE452417T1 (de) 2010-01-15
CN101170026B (zh) 2011-12-14
CN101170026A (zh) 2008-04-30
ITMI20062032A1 (it) 2008-04-24
ES2338169T3 (es) 2010-05-04
DE602007003794D1 (de) 2010-01-28
EP1916692B1 (de) 2009-12-16

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