EP0962952B1 - Elektrische Unterbrechungsvorrichtung enthaltend eine Differential-Auslösevorrichtung und Schutzschalter ausgerüstet mit einer solchen Vorrichtung - Google Patents

Elektrische Unterbrechungsvorrichtung enthaltend eine Differential-Auslösevorrichtung und Schutzschalter ausgerüstet mit einer solchen Vorrichtung Download PDF

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Publication number
EP0962952B1
EP0962952B1 EP99410075A EP99410075A EP0962952B1 EP 0962952 B1 EP0962952 B1 EP 0962952B1 EP 99410075 A EP99410075 A EP 99410075A EP 99410075 A EP99410075 A EP 99410075A EP 0962952 B1 EP0962952 B1 EP 0962952B1
Authority
EP
European Patent Office
Prior art keywords
trip
rod
differential
contacts
circuit breaker
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
EP99410075A
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English (en)
French (fr)
Other versions
EP0962952A1 (de
Inventor
Michel Schneider Electric Industries SA Lazareth
Bernard Schneider Electric Industries SA Lebeau
Michel Schneider Electric Industries SA Bonniau
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.)
Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0962952A1 publication Critical patent/EP0962952A1/de
Application granted granted Critical
Publication of EP0962952B1 publication Critical patent/EP0962952B1/de
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
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • 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
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • 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

Definitions

  • the present invention relates to an electrical switching device comprising, arranged in the same narrow housing, one substantially in the extension of the other in a plane substantially parallel to the large side faces of the housing, a trigger electromagnetic capable of acting on a trigger member to control a tripping device so as to cause the separation of the fixed contacts and mobile during a sudden rise in current, and a differential trigger capable of acting on the aforementioned triggering device to control the triggering device for so as to separate the contacts when an insulation fault occurs in the installation, said differential trip device comprising a suitable actuation means moving an actuating rod between a rest position and a position actuation of the trigger member.
  • differential circuit breaker as described in document EP-0.665.569 of the Applicant, comprising a differential trigger block coupled and laterally coupled to a circuit breaker block.
  • the mechanism of the differential unit is linked to the mechanism of the circuit breaker block by a mechanical trip link acting on the trip bar of the circuit breaker block, for the transmission of an order of differential trigger.
  • the differential circuit breaker block has a width and therefore a significant bulk. The need was therefore felt to reduce this size.
  • One of the solutions envisaged was to have the RCD and circuit breaker in the same module and in the same plane. A such a device is described in the US patent. 4608546.
  • the same rod is used to perform a trigger triggered either by the magnetic trigger or by the differential release.
  • This percussion rod is freely slidably mounted in the fixed core of the magnetic trigger and can be driven in translation either by the moving core of the magnetic release, either by a differential release rod controlled by the differential relay.
  • This device has a number of drawbacks.
  • One of these drawbacks is what this percussion rod needs to be guided very freely inside the core fixed and mobile core, because the differential energy produced by the differential trigger is very weak.
  • the pollution likely to be caused during the cut in the radial clearances located between the percussion rod and the fixed core, or well between the moving core and the differential trigger rod, can generate blockages hampering the proper functioning of the differential.
  • this rod is freely sliding decreases the efficiency and the yield. of the magnetic trigger because the moving core loses its impact energy.
  • the double function provided by the percussion rod leads to a stack of games, to know a clearance at the trigger relay with the trigger rod, a clearance between the trigger rod and the percussion rod and a clearance between the percussion rod and the circuit breaker trip bar, as well as a stack of dimensions longitudinal.
  • differential trigger rod needs to be non-magnetic, because it must not be influenced by the magnetic trigger.
  • the present invention provides a switching device comprising a device for differential trigger, simple design, which solves all these problems.
  • the present invention relates to a switching device of the kind previously mentioned, this device being characterized in that the trigger rod is placed outside the electromagnetic trigger and acts directly on the organ of the aforementioned trip when a differential fault occurs.
  • this trigger rod ensures the rearming of the actuation means after opening the contacts.
  • the aforementioned trigger rod comprises a spout able to cooperate with the triggering device so that the actuation of the tripping device resets the differential actuation means after opening the contacts.
  • the trigger device comprising a system attachment retaining the movable contact in the closed position by means of a rotary plate integral in rotation with the movable contact, and unlocking of the attachment system under the effect of the actuation of the trigger member causing the rotation of the plate in one direction and the separation of the contacts, the aforementioned spout cooperates with the plate so that the rotation of the plate causes the rearming of the differential actuation means.
  • the actuating means is capable of driving the rod trip in translation parallel to its longitudinal axis between a position of rest and an actuating position of the trigger member
  • the device comprising a manual control lever for contacts, the trigger rod extends between the lever and the magnetic trigger.
  • the magnetic trip device comprising a rod percussion cooperating with a coil
  • the trigger rod comprises a part straight forming an angle ⁇ of about 10 ° with the axis of the percussion rod and a part end curved substantially at right angles to the end of the rod percussion, said curved part cooperating with the triggering member.
  • the device also includes a button test circuit test, said test button being placed under the lever and acting on a spring element located laterally to the rod, said spring element connecting a test resistor incorporated into the circuit electronics of the differential function to the potential of the coil carcass.
  • the invention also relates to a circuit breaker comprising a breaking device comprising the aforementioned characteristics taken alone or in combination.
  • a modular differential circuit breaker block B intended to be connected to electrical conductors of an alternative network by means of a connection terminal 1, to protect the network during the appearance of an overload, a short circuit or a differential fault (or insulation fault).
  • This device is housed in a narrow housing 2 consisting of two parts, one of which has been removed so that the mechanism of the device appears.
  • This case presents a upper side a, one lower side b, one front side c, one rear side d and two large side faces of which only one is visible.
  • This case mainly contains a pair of separable contacts 3, 4 respectively fixed 3 and mobile 4, a mechanism command 5 for opening and closing the circuit breaker actuated by a handle 6, a electromagnetic trip 7, thermal trip 8, differential trip 9 and a trip device D of the circuit breaker.
  • the electromagnetic trip device 7 is intended to cause the opening of the contacts during the appearance of a short circuit. It comprises in a manner known per se, a coil 10 mounted on a sheath 11 inside which is fixed a fixed core (not shown), and slides a movable core (not visible) secured to a percussion rod 12. This core mobile is able to move between a rest position and an active position in which the percussion rod 12 acts on a triggering member or trigger bar 20, so as to cause the separation of the contacts 3, 4, under the effect of the magnetic field created by the passage of a short circuit current through the coil.
  • the thermal trip device 8 is in the form of a bimetallic strip 13 and is able to activate the tripping device D of the circuit breaker, so as to cause the separation of contacts, when a current overload occurs.
  • the differential trip device 9 comprises a means for detecting a differential current in the form of a totalizing transformer 14, a test circuit with test button 15 (FIG. 1), an actuating means in the form of a relay 16, said to be magnetic latching, and a electronic processing circuit with auxiliary power source 17 mounted on a card electronic.
  • the totalizing transformer comprises a magnetic circuit in toroid shape crossed by neutral conductors and connected power phase electrically at the lower terminals of the circuit breaker block and constituting the winding transformer primary.
  • a secondary winding is wound on the toroid, and is electrically connected by wires to the input of the electronic circuit 17.
  • the output of the electronic circuit is connected by an electrical connection to the coil of the relay trigger 16.
  • the trigger relay 16 being known per se, it will not be described here in detail.
  • This relay comprises a coil which, following an order given by the electronic circuit, is able to move a core 16b, which core 16b acts on a trigger rod differential 19 when a differential fault occurs, so as to move the rod between a rest position and a position in which the rod 19 strikes the bar trigger 20.
  • a spring 18 is interposed between a bearing face 16a of the relay 16 and a bearing face of the core 16b.
  • the trigger rod 19 extends between the lever above 6 and the coil 10 of the electromagnetic trip device 7, forming an angle ⁇ about 10 ° with the axis of this coil 10.
  • This rod comprises a rectilinear part 19a ending with a curved part 19b substantially at 90 °, in the direction of the bar trigger 20.
  • the end of the rod 19c has a slightly rounded shape corresponding to the shape of the part of the bar 20 intended to cooperate with said rod 19.
  • the tripping device of circuit breaker D comprises in a manner known per se, a attachment system 22, 20 arranged so as to retain the movable contact 4 in position closed by means of a plate 23 rotatably mounted in the housing and secured to the contact mobile 4.
  • the trigger rod 19 has a spout 21, having, in the plane of the figure, a substantially triangular section, and suitable for cooperate (come to bear) with the plate 23, so that the rotational movement of the plate 23 after each trip, causes the rearming of the rod differential trip 19, i.e. its displacement in the direction of relay 16 to against the force of the spring 18 until the magnetic catch is restored, as explained in more detail in the following.
  • rod 19 is guided in translation by positioning supports and guide 24, integral with the side walls of the housing.
  • This circuit breaker further comprises a test circuit with test button, said button 15 being located under the lever 6 and acting on a spring element 15a situated laterally to the rod, said spring element connecting a test resistor 17a incorporated in the electronic circuit of the differential function at the coil carcass potential 10.
  • the circuit breaker is in an armed position, closed contacts, corresponding to normal operation of the electrical network.
  • the rod 19 is retained in a rest position bearing on the core 16b of the relay, which core is retained by magnetic snap.
  • the summing transformer 14 sends a trip order to the circuit electronics 17, which after amplification, controls the excitation of the coil of the relay 16. This causes the magnetic release of the core 16b of relay 16, which drives the trigger rod 19 (fig. 2), in translation in the direction of the bar trigger 20 under the force of spring 18 (the core comes off, the spring being the stronger, it acts on the stem).
  • the rod by its curved end 19b strikes the bar of trigger 20; which causes the unlocking of the fastening system 20,22 retaining the movable contact 4 in the closed position by means of the plate 23.
  • the plate 23 is rotated counterclockwise until the contacts open under the effect of a return spring.
  • the plate 23 strikes the spout 21 of the trigger rod 19 and recalls said rod 19 in the retracted position in moving said rod 19 towards the body of relay 16, until the hooking of the relay core is restored.
  • the handle 6 can then be manually actuated in the direction clockwise, until the contacts close, which corresponds to the state of the circuit breaker shown in Figure 1.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)

Claims (11)

  1. Elektrische Ausschaltvorrichtung mit einem schmalen Gehäuse und einem in diesem schmalen Gehäuse angeordneten elektromagnetischen Auslöser (7), der auf ein Auslöseglied zur Betätigung einer Auslösevorrichtung wirkt, derart daß bei einem plötzlichen Anstieg des Stroms die Trennung des beweglichen und des feststehenden Kontakts erfolgt, sowie einem Differenzstromauslöser (9), der auf das genannte Auslöseglied zur Betätigung der Auslösevorrichtung wirkt, derart daß bei Auftreten eines Isolationsfehlers in der Installation die Trennung der Kontakte bewirkt wird, wobei die beiden Auslöser annähernd in der Verlängerungsachse des jeweils anderen sowie in einer annähernd parallel zu den breiten Seitenflächen verlaufenden Ebene angeordnet sind und der genannte Differenzstromauslöser ein Betätigungsmittel (16) umfaßt, das die Verschiebung einer Betätigungsstange (19) zwischen einer Ruhestellung und einer Betätigungsstellung des Auslöseglieds bewirkt, dadurch gekennzeichnet, daß die Auslösestange (19) außerhalb des elektromagnetischen Auslösers (7) angeordnet ist und bei Auftreten eines Differenz-Fehlerstroms unmittelbar auf das genannte Auslöseglied (20) wirkt.
  2. Vorrichtung nach Anspruch1, dadurch gekennzeichnet, daß diese Auslösestange (19) nach dem Öffnen der Kontakte (3, 4) die Rückstellung des Betätigungsmittels (16) gewährleistet
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß an der genannten Auslösestange (19) eine Nase (21) ausgebildet ist, die dazu ausgelegt ist, mit der Auslösevorrichtung D zusammenzuwirken, derart daß die Betätigung der Auslösevorrichtung D nach dem Öffnen der Kontakte (3, 4) die Rückstellung des Differenzstromschutz-Betätigungsmittels (16) bewirkt.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Auslösevorrichtung (D) eine Verklinkung (22) umfaßt, welche den beweglichen Kontakt (4) mit Hilfe einer drehwirksam mit dem beweglichen Kontakt (4) verbundenen Drehplatte (23) in der Schließstellung hält, und die Entriegelung der Verklinkung (22) durch die Betätigung des Auslöseglieds (20) die Drehung der Platte (23) in eine Richtung sowie die Trennung der Kontakte bewirkt, wobei die genannte Nase (21) mit der Platte (23) zusammenwirkt, derart daß die Drehung der Platte (23) während der Auslösung die Rückstellung des Differenzstromschutz-Betätigungsmittels (16) bewirkt.
  5. Vorrichtung nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Betätigungsmittel (16) dazu ausgelegt ist, die Auslösestange (19) parallel zu seiner Längsachse zwischen einer Ruhestellung und einer Betätigungsstellung des Auslöseglieds (20) geradlinig zu verschieben.
  6. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Vorrichtung einen Handknebel (6) zur manuellen Betätigung der Kontakte umfaßt und die Auslösestange (19) zwischen dem Handknebel (6) und dem Magnetauslöser (7) angeordnet ist.
  7. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Magnetauslöser (7) einen mit einer Spule (10) zusammenwirkenden Schlagstift (12) umfaßt und die Auslösestange (19) einen geradlinigen Abschnitt (19a), der mit der Achse der Schlagstifts (12) einen Winkel • von etwa 10° bildet, sowie einen in Richtung des Endes des Schlagstifts (12) annähernd rechtwinklig abgewinkelten Endabschnitt (19b) aufweist, wobei der genannte abgewinkelte Abschnitt (19b) mit dem Auslöseglied (20) zusammenwirkt.
  8. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Betätigungsmittel als Relais (16) mit magnetischer Haltung ausgebildet ist.
  9. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie außerdem eine Prüfschaltung mit Prüftaste umfaßt, welche Prüftaste unterhalb des Handknebels (6) angeordnet ist und auf ein seitlich neben der Stange angeordnetes Federelement wirkt, wobei das genannte Federelement einen in die elektronische Prüfschaltung des Differenzstromschutzes integrierten Prüfwiderstand (17a) mit dem Potential des Gehäuses der Spule (10) verbindet.
  10. Leistungsschalter mit einer Ausschaltvorrichtung nach irgendeinem der vorhergehenden Ansprüche.
  11. Leistungsschalter nach Anspruch 10, dadurch gekennzeichnet, daß das Auslöseglied (20) als Auslösehebel ausgebildet ist.
EP99410075A 1998-06-04 1999-05-31 Elektrische Unterbrechungsvorrichtung enthaltend eine Differential-Auslösevorrichtung und Schutzschalter ausgerüstet mit einer solchen Vorrichtung Expired - Lifetime EP0962952B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9807190A FR2779568B1 (fr) 1998-06-04 1998-06-04 Dispositif de coupure electrique comprenant un dispositif de declenchement differentiel et disjoncteur comprenant un tel dispositif
FR9807190 1998-06-04

Publications (2)

Publication Number Publication Date
EP0962952A1 EP0962952A1 (de) 1999-12-08
EP0962952B1 true EP0962952B1 (de) 2004-01-28

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EP99410075A Expired - Lifetime EP0962952B1 (de) 1998-06-04 1999-05-31 Elektrische Unterbrechungsvorrichtung enthaltend eine Differential-Auslösevorrichtung und Schutzschalter ausgerüstet mit einer solchen Vorrichtung

Country Status (10)

Country Link
EP (1) EP0962952B1 (de)
CN (1) CN1147897C (de)
AT (1) ATE258715T1 (de)
AU (1) AU745538B2 (de)
BR (1) BR9902700A (de)
DE (1) DE69914403D1 (de)
EA (1) EA001567B1 (de)
FR (1) FR2779568B1 (de)
HK (1) HK1022043A1 (de)
ZA (1) ZA993751B (de)

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DE10118098A1 (de) * 2001-04-11 2002-10-17 Abb Patent Gmbh Installationsschaltgerät
JP4090850B2 (ja) * 2002-11-13 2008-05-28 三菱電機株式会社 回路遮断器
DE102004004840B4 (de) * 2004-01-30 2006-05-11 Siemens Ag Schutzschaltvorrichtung mit Differenzstromauslöser
DE102004034859A1 (de) * 2004-07-19 2006-02-16 Siemens Ag Schutzschaltgerät in Schmalbauweise
FR2874740B1 (fr) * 2004-09-02 2006-10-20 Schneider Electric Ind Sas Declencheur electromagnetique et appareil de coupure electrique le comportant
FR2903223B1 (fr) * 2006-06-29 2008-08-15 Schneider Electric Ind Sas Appareil de protection electrique commande par un dispositif de commande auxiliaire.
CN100466137C (zh) * 2006-10-13 2009-03-04 Tcl低压电器(无锡)有限公司 电磁式剩余电流动作保护器及其保护方法
EP2045825A1 (de) * 2007-10-01 2009-04-08 Siemens Aktiengesellschaft Schaltelement
FR2925756B1 (fr) * 2007-12-20 2010-02-26 Schneider Electric Ind Sas Appareil de protection electrique modulaire comportant une fonction electrique complementaire telle la fonction protection differentielle
CN101656180B (zh) * 2008-08-18 2012-08-22 湖北盛佳电器设备有限公司 电磁式短路保护断路器
FR2943847B1 (fr) * 2009-03-31 2011-04-01 Schneider Electric Ind Sas Dispositif de declenchement thermique pour un appareil de protection electrique
WO2011041843A1 (en) * 2009-10-08 2011-04-14 Stephen James Woolley 3 phase rcbo
FR2961343B1 (fr) * 2010-06-15 2012-06-08 Schneider Electric Ind Sas Dispositif de declenchement auxiliaire destine a etre associe a un bloc disjoncteur.
DE102010032030B4 (de) * 2010-07-21 2022-06-30 Siemens Aktiengesellschaft Elektrischer Schalter
DE102011014061B4 (de) * 2011-03-16 2013-11-28 Abb Ag Leitungsschutzschalter und Verfahren zum Herstellen eines Leitungsschutzschalters
US20120250206A1 (en) * 2011-03-30 2012-10-04 General Electric Company Compact residual current breaker with overcurrent protection
EP2833389A1 (de) * 2013-07-31 2015-02-04 ABB S.p.A. Niederspannungs-Fehlerstromschutzschalter mit festem Neutralleiter
FR3028663B1 (fr) * 2014-11-14 2016-12-16 Hager-Electro Sas Actionneur electromagnetique a bobines multiples
FR3028662B1 (fr) * 2014-11-14 2016-12-16 Hager-Electro Sas Actionneur electromagnetique a bobines multiples
CN105609385B (zh) * 2016-03-15 2018-02-09 佳一电气有限公司 多功能终端电器
CN105762033B (zh) * 2016-04-27 2018-09-07 乐清市也为电气有限公司 一种漏电断路器的动触头操作机构
ITUA20164207A1 (it) * 2016-06-08 2017-12-08 Gewiss Spa Modulo di controllo compatto, per dispositivi di riarmo automatico
FR3057389B1 (fr) * 2016-10-11 2020-12-25 Schneider Electric Ind Sas Appareillage de coupure electrique differentiel comportant un dispositif de test de la fonction differentielle
CN115148546B (zh) * 2022-08-07 2023-09-26 浙江西屋电气股份有限公司 一种远程操控分合闸的单极微型断路器

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Also Published As

Publication number Publication date
FR2779568A1 (fr) 1999-12-10
AU3315799A (en) 1999-12-16
EA199900440A3 (ru) 2000-04-24
ATE258715T1 (de) 2004-02-15
HK1022043A1 (en) 2000-07-21
BR9902700A (pt) 2000-03-21
CN1238546A (zh) 1999-12-15
CN1147897C (zh) 2004-04-28
DE69914403D1 (de) 2004-03-04
AU745538B2 (en) 2002-03-21
EA199900440A2 (ru) 1999-12-29
EP0962952A1 (de) 1999-12-08
EA001567B1 (ru) 2001-04-23
FR2779568B1 (fr) 2000-07-13
ZA993751B (en) 1999-12-06

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