EP0371887A1 - Modulschützschalter mit Hilfsauslöseblock mit einer automatischen oder unabhängigen Wiedereinschaltung - Google Patents

Modulschützschalter mit Hilfsauslöseblock mit einer automatischen oder unabhängigen Wiedereinschaltung Download PDF

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Publication number
EP0371887A1
EP0371887A1 EP89420440A EP89420440A EP0371887A1 EP 0371887 A1 EP0371887 A1 EP 0371887A1 EP 89420440 A EP89420440 A EP 89420440A EP 89420440 A EP89420440 A EP 89420440A EP 0371887 A1 EP0371887 A1 EP 0371887A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
lever
auxiliary
block
selector
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
EP89420440A
Other languages
English (en)
French (fr)
Other versions
EP0371887B1 (de
Inventor
Patrick Guillon
Jacques Vallot
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of EP0371887A1 publication Critical patent/EP0371887A1/de
Application granted granted Critical
Publication of EP0371887B1 publication Critical patent/EP0371887B1/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
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1018—Interconnected mechanisms with only external interconnections
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
    • 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
    • H01H2071/109—Operating or release mechanisms with provisions for selecting between automatic or manual reset
    • 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 invention relates to a modular circuit breaker formed by the assembly of an auxiliary tripping block to a circuit breaker block, in particular multipolar, the latter having a switching mechanism associated with a first manual control lever with two stable positions O d 'opening, and F closing, the auxiliary unit comprising: - a control mechanism cooperating with a second reset lever and an electromechanical relay with trip coil, - Said second lever being movable between a first armed position R and a second disarmed position D - a first mechanical trip link transmitting the trip order from the relay to the circuit breaker switching mechanism, - And a second mechanical reset link which derives from the closing movement of the circuit breaker block, an automatic reset movement of the auxiliary block.
  • the levers of certain modules cooperate with a common trip bar.
  • the handle of one of the tripping auxiliaries is housed in an opening in the bar, which causes tripping of the adjacent circuit breaker blocks after the tripping order has been issued by the auxiliary.
  • the assembly is arranged so that the tripping of one of the circuit breaker blocks does not affect the others.
  • the presence of this bar does not make it possible to interrupt the reset link between the circuit breaker block and the trip auxiliary.
  • the auxiliary reset is automatic as soon as one of the handles of a circuit breaker module is returned to the closed position.
  • the resetting of the differential trip unit is independent of the state of the circuit breaker unit, and takes place manually by pressing a reset button provided on the trigger block. After a differential trip, it is necessary to manually reset the differential trip unit before attempting to close the circuit breaker unit.
  • Manual reset of the differential circuit breaker unit can also take place by means of a pivoting lever not mechanically linked to the handle of the circuit breaker unit.
  • the object of the invention is to standardize modular circuit breakers with auxiliary tripping blocks by authorizing the choice of independent or automatic reset mode by the customer.
  • the modular circuit breaker according to the invention is characterized in that the auxiliary unit is equipped with a control selector capable of occupying an active position and an inactive position, respectively to establish and interrupt said second mechanical reset link between the first and the second controller.
  • the selector is formed by a slide housed in a slot in the second lever.
  • the two levers are independent of each other, and the rearming of the auxiliary unit must take place manually before closing the circuit breaker unit.
  • the second mechanical reset link is automatically established when the two blocks are joined.
  • the selector in the active position is arranged so that said second mechanical reset link is unidirectional in the direction of closing of the first lever.
  • the selector comprises a branch projecting in the active position to cooperate with a step of the first lever when resetting the auxiliary unit, said second one-way mechanical link being put out of service during the opposite maneuver of manual or automatic opening of the circuit breaker unit .
  • the advantage of the one-way reset link is the absence of a special indicator for tripping, since the armed or disarmed state of the auxiliary unit is signaled directly by the position of the second lever.
  • the selector in the active position is arranged so that said second mechanical reset link is bidirectional, permanently linking the two levers during the closing and opening of the circuit breaker block.
  • an auxiliary tripping unit 10 in particular with differential protection, is coupled and coupled laterally to a bipolar circuit breaker block 12 with molded case of conjugate shape to form a modular circuit breaker.
  • Each pole 14 of the circuit breaker block 12 includes a switching mechanism (not shown) associated with separable contacts to interrupt or close the electrical circuit arranged between connection terminals 16, 18.
  • a first common pivoting lever 20 for manual operation of the mechanism of the circuit breaker block 12 can occupy two stable positions corresponding to the opening and closing of the pole contacts.
  • circuit breaker block 12 could be three-pole or four-pole with separate modules or with a one-piece housing.
  • the intensity of the current flowing through each pole is monitored by a main trip device (not shown), in particular a thermal thermal trip device, which causes the automatic switching trip in the event of an overload or a short circuit.
  • the auxiliary trigger block 10 contains a control mechanism 22 controlled by a second reset lever 24, and an electromechanical relay 26 with trigger coil.
  • the control mechanism 22 transmits the trip order from the relay 26 to the circuit breaker block 12, via a first mechanical trip link 28.
  • This first connection is formed by a lug of the mechanism 22 passing through an opening in the case of the auxiliary unit 10 to cooperate with the automatic trigger bar of the switching mechanism of the neighboring pole 14.
  • the second reset lever 24 is able to pivot between two stable positions, in particular a first armed position R and a second disarmed position D representing the state of the auxiliary unit 10.
  • the auxiliary unit 10 can be arranged either as a trigger differential with summing transformer for detecting a leakage current, either as an undervoltage release MN, or as an emission release MX.
  • the relay 26 of the control mechanism 22 must be adapted to each type of trip device.
  • the triggering of the control mechanism 22 by the relay 26 of the auxiliary block 12 causes the circuit breaker block 12 to trip in cascade by means of the first mechanical connection 28. This results in separation of the contacts, and displacement of the first lever 20 towards the open position. The other lever 24 of the control mechanism 22 is then in the disarmed position.
  • the rearming of the auxiliary unit 10 is effected by rotation of the second lever 24 from the disarmed position to the armed position.
  • This resetting operation can be either independent by manual movement of the second lever 24 towards the armed position, or automatic by the closing operation of the circuit breaker block 12.
  • the two levers 20, 24 are independent of each other.
  • the two levers 20, 24 are connected together by a second mechanical resetting link 30 (see FIGS. 3 and 4), which derives from the closing movement of the circuit breaker unit 12 a movement of automatic reset of the auxiliary unit 10.
  • the choice between one of these two reset modes can be fixed at the factory or by the operator himself when adapting the auxiliary unit 10 to the circuit breaker unit 12.
  • This voluntary setting is adjusted by means of a selector 32 of control in the form of a U-shaped slide capable of occupying a stable inactive position (FIGS. 1 and 2), and a stable active position (FIGS. 3 and 4) interrupting and establishing respectively the second mechanical connection 30 between the two levers 20.24.
  • the U-shaped selector 32 is housed in an internal lumen 34 of the second lever 24, and has two parallel branches, one of which 36 is longer than the other 38.
  • the passage of the selector 32 from the inactive position (in solid lines in FIG. 5) to the active position (shown in dotted lines) causes the branch 36 to protrude, which cooperates with a step 40 of the first lever 20 to establish the second mechanical connection 30 rearmament.
  • the shortest branch 38 of the selector 32 remains recessed inside the light 34.
  • the second mechanical connection 30 is unidirectional in the direction of closing of the circuit breaker block 12. It is automatically interrupted when the block opens circuit breaker 12.
  • the auxiliary unit 10 being in the armed position, manual or automatic opening by the main thermomagnetic trip unit of the circuit breaker unit 12, causes the displacement of the first lever 20 towards the position opening in the direction of arrow 0.
  • the second lever 24 does not follow the movement of the first lever 20 and remains stationary in the first armed position.
  • the circuit breaker unit 12 opens, and the second lever 24 comes into the second disarmed position D, indicating the tripped state of the auxiliary unit 10.
  • This movement towards the disarmed position (see arrow D) of the second lever 24 is not due to the second mechanical link 30 which is not operational, but to the action of a return spring and of the energy accumulator integrated in the control mechanism 22, and released on auxiliary block tripping 10.
  • the auxiliary block 10 is reset during the closing operation of the circuit breaker block 12, by displacement of the first lever 20 in the direction of the arrow F.
  • the second mechanical connection 30 is then operational, and drives in the same direction the branch 36 of the selector 32.
  • the second lever 24 is thus actuated in the rearming direction (see arrow R) as far as the first armed position, indicating the resetting of the auxiliary unit 10.
  • FIG. 6 shows a variant of control selector 132 shaped as a sliding jumper with two branches 136, 138 of identical lengths.
  • the two levers 20, 24 remain independent of one another, and the operation is identical to that mentioned above with the selector 32 inactive.
  • the passage of the selector 132 towards the active position creates a second bidirectional mechanical connection 130 between the two lever 20,24.
  • the second lever 24 is then permanently linked to the first lever 20 whatever the direction of pivoting of the latter.
  • the rearming of the auxiliary unit 10 occurs automatically by the closing operation of the circuit breaker, that is to say when the first lever 20 is moved by pivoting towards the closing position F.
  • a fault indicator is provided on the auxiliary block 10 to signal the tripping of the latter, and not not that of automatic tripping or manual opening of the circuit breaker unit 12.

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  • Breakers (AREA)
EP19890420440 1988-11-28 1989-11-15 Modulschützschalter mit Hilfsauslöseblock mit einer automatischen oder unabhängigen Wiedereinschaltung Expired - Lifetime EP0371887B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815651A FR2639760B1 (fr) 1988-11-28 1988-11-28 Disjoncte ur modulaire equipe d'un bloc auxiliaire de declenchement a rearmement independant ou automatique
FR8815651 1988-11-28

Publications (2)

Publication Number Publication Date
EP0371887A1 true EP0371887A1 (de) 1990-06-06
EP0371887B1 EP0371887B1 (de) 1994-01-26

Family

ID=9372415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890420440 Expired - Lifetime EP0371887B1 (de) 1988-11-28 1989-11-15 Modulschützschalter mit Hilfsauslöseblock mit einer automatischen oder unabhängigen Wiedereinschaltung

Country Status (4)

Country Link
EP (1) EP0371887B1 (de)
DE (1) DE68912738T2 (de)
ES (1) ES2050270T3 (de)
FR (1) FR2639760B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6239395B1 (en) * 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
EP1724803A2 (de) * 2005-05-17 2006-11-22 Bticino S.P.A. Zu einer elektrischen Schaltvorrichtung zuordenbare elektronische Einrichtung
CN105097372A (zh) * 2015-08-12 2015-11-25 宏秀电气有限公司 自动分合闸小型断路器
CN106206162A (zh) * 2015-04-29 2016-12-07 浙江正泰电器股份有限公司 接触器的连接结构
CN107749382A (zh) * 2017-11-16 2018-03-02 浙江人民电器有限公司 一种断路器的操作结构、断路器及控制方法

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DE19819242B4 (de) 1998-04-29 2005-11-10 Ge Power Controls Polska Sp.Z.O.O. Thermomagnetischer Leistungsschalter
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US6175288B1 (en) 1999-08-27 2001-01-16 General Electric Company Supplemental trip unit for rotary circuit interrupters
US6232570B1 (en) 1999-09-16 2001-05-15 General Electric Company Arcing contact arrangement
US6326869B1 (en) 1999-09-23 2001-12-04 General Electric Company Clapper armature system for a circuit breaker
US6229413B1 (en) 1999-10-19 2001-05-08 General Electric Company Support of stationary conductors for a circuit breaker
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EP1098343B1 (de) 1999-11-03 2005-09-21 AEG Niederspannungstechnik GmbH & Co. KG Drehkontaktanordnung für Schutzschalter
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DE102007043253B4 (de) * 2007-09-11 2014-04-24 Siemens Aktiengesellschaft Griffbrücke, Fehlerstromschutzeinrichtung sowie System aus Fehlerstromschutzeinrichtung und Leitungsschutzschalter
FR3100654B1 (fr) * 2019-09-05 2021-09-17 Schneider Electric Ind Sas Module électronique auxiliaire de protection et dispositif de disjonction associé

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FR2615323A1 (fr) * 1987-05-11 1988-11-18 Merlin Gerin Disjoncteur modulaire a bloc declencheur auxiliaire associe a un bloc disjoncteur multipolaire

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FR2615323A1 (fr) * 1987-05-11 1988-11-18 Merlin Gerin Disjoncteur modulaire a bloc declencheur auxiliaire associe a un bloc disjoncteur multipolaire
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6239395B1 (en) * 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
EP1724803A2 (de) * 2005-05-17 2006-11-22 Bticino S.P.A. Zu einer elektrischen Schaltvorrichtung zuordenbare elektronische Einrichtung
EP1724803A3 (de) * 2005-05-17 2008-01-23 Bticino S.P.A. Zu einer elektrischen Schaltvorrichtung zuordenbare elektronische Einrichtung
CN106206162A (zh) * 2015-04-29 2016-12-07 浙江正泰电器股份有限公司 接触器的连接结构
CN106206162B (zh) * 2015-04-29 2020-10-02 浙江正泰电器股份有限公司 接触器的连接结构
CN105097372A (zh) * 2015-08-12 2015-11-25 宏秀电气有限公司 自动分合闸小型断路器
CN107749382A (zh) * 2017-11-16 2018-03-02 浙江人民电器有限公司 一种断路器的操作结构、断路器及控制方法
CN107749382B (zh) * 2017-11-16 2021-01-05 浙江人民电器有限公司 一种断路器的操作结构、断路器及控制方法

Also Published As

Publication number Publication date
DE68912738T2 (de) 1994-08-04
FR2639760B1 (fr) 1996-02-09
FR2639760A1 (fr) 1990-06-01
ES2050270T3 (es) 1994-05-16
EP0371887B1 (de) 1994-01-26
DE68912738D1 (de) 1994-03-10

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