EP0295155A1 - Modulschutzschalter, bestehend aus einem mit einem mehrpoligen Leistungsschutzschalterblock zusammenwirkenden Auslöseblock - Google Patents

Modulschutzschalter, bestehend aus einem mit einem mehrpoligen Leistungsschutzschalterblock zusammenwirkenden Auslöseblock Download PDF

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Publication number
EP0295155A1
EP0295155A1 EP88401006A EP88401006A EP0295155A1 EP 0295155 A1 EP0295155 A1 EP 0295155A1 EP 88401006 A EP88401006 A EP 88401006A EP 88401006 A EP88401006 A EP 88401006A EP 0295155 A1 EP0295155 A1 EP 0295155A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
trip
block
finger
trip unit
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
EP88401006A
Other languages
English (en)
French (fr)
Other versions
EP0295155B1 (de
Inventor
Yves Belin
Patrick De Robertis
Patrick Guillon
Michel Lazareth
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 EP0295155A1 publication Critical patent/EP0295155A1/de
Application granted granted Critical
Publication of EP0295155B1 publication Critical patent/EP0295155B1/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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a modular circuit breaker with auxiliary trip block, in particular differential or emission, capable of being coupled and coupled to a multipole circuit breaker block having a plurality of juxtaposed poles, each pole of said circuit breaker block comprising separable contacts and a first mechanism for actuating said contacts, controlled either manually by a control handle with two stable opening and closing positions of the circuit breaker, or automatically by a main trip device cooperating with a trip bar in the event of an overload or short-circuit , said auxiliary trip unit containing an electromagnetic relay associated with a second control mechanism comprising a reset lever for the trip unit and a first mechanical trip link capable of transmitting the trip order of the relay to the trip bar by engagement of a second mechanism finger in a mena opening located in the insulating housing of the neighboring pole.
  • a known differential circuit breaker of the kind mentioned is described in French patent 2,437,692 of the applicant.
  • the differential block is coupled to the circuit breaker block by the installer, who must ensure that the release finger of the release block is correctly engaged in the first mechanism of the neighboring pole, and that the handles allow the resetting to be reset. of the trigger block by actuation of the first mechanism. If these instructions are not followed, the differential trip unit is inoperative. The risk of a faulty coupling is possible in the event of a mismatch between the levers, especially when the installer attempts to couple a disarmed trip unit to an armed and closed circuit breaker unit.
  • the object of the invention is to achieve perfect coupling of the circuit breaker block and the auxiliary trip block of a modular circuit breaker, regardless of the armed or tripped state of the blocks.
  • the circuit breaker according to the invention is characterized in that a control means is arranged to transform the movement of bringing the two blocks closer into a movement of automatic adjustment of the control levers and of resetting of the first and second mechanisms, so as to avoid any discrepancy between said levers, in particular when a disarmed trip unit is associated with a closed circuit breaker unit.
  • the trigger finger of the first mechanical connection is capable of cooperating with an actuating ramp of the trigger bar to cause the forced tripping of the circuit breaker block, the movement of approaching the blocks being transformed into a pivoting movement of the trigger bar towards the triggered position.
  • the second mechanism is equipped with a second mechanical link for resetting the trip unit comprising a transmission lug capable of driving the reset handle to the armed position during manual actuation of the handle of the first mechanism to the closed position. of the circuit breaker block.
  • This second mechanical link can be unidirectional or bidirectional.
  • the centering of the two blocks is ensured by positioning pins of the trigger block which can engage in guide holes of the adjacent pole.
  • the finger length of the first mechanical trigger link is lower than that of the positioning pins.
  • said control means comprises a pawl integrated in the reset lever of the trip unit so as to cause a rocking movement of the handle towards the armed position of the second mechanism.
  • an auxiliary trip unit 12 of the differential or emission type is attached and coupled to a two-pole circuit breaker unit 10 to constitute a differential circuit breaker or a remote-controlled circuit breaker.
  • the circuit breaker block 10 is formed by the juxtaposition of two standard 14.16 poles each comprising a pair of connection terminals, a pair of separable 18.20 contacts (FIGS. 5 and 6) and a first actuation mechanism 22 controlled either manually by a control lever 24 with two stable positions for opening and closing the circuit breaker, or automatically by a main thermomagnetic trip device (not shown) actuating a common trip bar 26 in the event of an overload or short-circuit.
  • the levers 24 of the two poles 14, 16 are mechanically linked together by a common bar 28.
  • the mechanism 22 ( Figures 5 and 6) of each pole 14,16 is of the type described in European patent application No.
  • 86 402 267 and comprises a trigger lever 30 pivotally mounted on an axis 32 carried by a plate 34 capable of rotating around a pivot 36 when the circuit breaker opens and closes.
  • a transmission link 38 is interposed between the lever 24 and an attachment (not shown) of the plate 34, said attachment being unlocked by the trigger lever 30 during a fault detected by the magnetothermal trigger.
  • This tripping order can be transmitted to the pole next to the block circuit breaker 10 by a finger 44 ( Figures 5 and 9), formed by an auxiliary needle connecting the extensions of the trigger levers 30 of the two poles.
  • the opposite faces of the insulating housing 40 of each pole include a pair of aligned holes 42, intended to ensure the transmission and reception of trip orders between the poles of the circuit breaker block 10 and the trip block 12.
  • the emission at the level a pole is always exerted towards the left, while the reception comes from the right (figure 9).
  • the circuit breaker block 10 could of course include a juxtaposition of three protected poles, or of a phase pole with a neutral pole.
  • the auxiliary trip unit 12 contains an electromagnetic relay 45 associated with a second control mechanism 46 (see FIGS. 1 to 4).
  • Relay 45 is supplied by a differential transformer or by a remote control, so as to issue a trip order to the neighboring circuit breaker block 10.
  • the mechanism 46 of the trip unit 12 is connected to the circuit breaker unit 10 by a first mechanical trip link 48, shown in detail in the upper part of FIGS. 1 to 4 and by a second mechanical link 50 (see lower part) for resetting the relay 45 of the trip unit 12.
  • the first mechanical link 48 transmits the triggering order of the relay 45 to the trigger bar 26 by engagement of a finger 52 of the mechanism 46 in the orifice 42 located in the right face of the pole 16.
  • the second mechanical link 50 of the mechanism 46 comprises a reset handle 54 fitted with a drive lug 56 cooperating with the handle 24 for controlling the pole 16.
  • the drive of the handle 54 for resetting the trip unit 12 by the handle 24 of the circuit breaker unit 10 is unidirectional in the direction of closing the actuating mechanism 22. There is no positive connection between the levers 54,24 in the opposite direction of opening of the circuit breaker.
  • the reset movement of the mechanism 46 after triggering by the auxiliary trigger block 12 takes place in two distinct phases: - during the first phase of transmitting the triggering order of relay 45 by finger 52 to the bar 26, the circuit breaker opens and an arming lever (not shown) of the mechanism 46 automatically pushes the relay 45 towards the reset position.
  • the lever 54 is on the other hand in the triggered position, the second mechanical connection 50 being inactive.
  • the manual closing of the handle 24 of the circuit breaker block 10 involves the second link 50 which positively drives the handle 54 to the reset position, and releases the relay 45 from the restoring force of the arming lever of the mechanism 46.
  • the auxiliary trip unit 12 is then ready to send a new trip order to the circuit breaker unit 10.
  • the housing 59 of the trip unit 12 for this purpose comprises positioning pins 60 capable of engaging in guide holes 61 formed in the housing 40 of the pole 16 ( Figure 7). the pins 60 and the trigger finger 52 of the trigger block 12 protrude from the internal lateral face of the housing 59 extending parallel to each other, the finger 52 having a length less than that of the pins 60.
  • the finger 52 of the first mechanical connection 48 crosses the orifice 42 on the right of the pole 16, and cooperates either with a shoulder 62, or with a ramp 64 of the trigger lever 30 according to the armed or triggered state of the mechanisms 22,46 for controlling the blocks 10,12.
  • the shoulder 62 extends parallel to the trigger finger 52 and is located between the ramp 64 and a housing 66 blind lever 30.
  • the trigger 52 trigger finger 12 abuts against the ramp 64 ( Figures 7 and 8), and rotates the lever 30 and the trigger bar 26 to the tripped position causing the opening of the circuit breaker block 10.
  • This pivoting movement of forced triggering results from the transformation of the joining movement by the action of finger 52 on the ramp 64.
  • the forced triggering occurs before the coupling of the levers 24.54 thanks to a predetermined clearance J (FIG. 7) which remains between them when the tip of the finger 52 comes into contact with the ramp 64.
  • the handle 24 of the circuit breaker unit 10 is placed below the handle 54 of the trip unit 12 to establish the second mechanical connection 50.
  • the closure of the contacts of the circuit breaker unit 10 by manual movement of the handle 24 towards position I (FIG. 5) then drives the handle 54 to the armed position of the auxiliary trigger unit 12.
  • the second mechanical connection 50 could of course be bidirectional by permanent assembly by means of the lug 56 of the two levers 24,54 for controlling the adjoining blocks 10,12.
  • the mechanism 46 of the trip unit 12 would be modified, such that the reset movement of the relay 45 would be derived from the opening movement of the circuit breaker.
  • the second link 50 could also be completely eliminated, and the separate resetting of the auxiliary trip unit 12 would in this case be done manually by actuation of the lever 54 before the circuit breaker unit 10 closes.
  • FIG. 9 diagrammatically shows the transmission of the tripping movement between the tripping block 12 and the poles 14, 16 of the circuit breaker block 10.
  • the tripping bar 26 is modular and is constituted by the transverse interlocking of the fingers 52, 44 with the levers tripping 30 of the poles 16,14.
  • the circuit breaker trip bar 26 is used for multipole trip, that is to say between the two poles 12,14, and when triggered by the auxiliary block 12.
  • the splitting of the bar 26 makes it possible to obtain different movements in the two blocks 10,12.
  • the connecting finger 44 between the levers 30 of the two poles 14, 16 penetrates completely into the blind housing 66 formed in the trigger lever 30 of the pole 14, and remains trapped there.
  • the other end of the finger 44 is fixed in a hole in the lever 30 belonging to the pole 16.
  • This bidirectional connection allows the transmission of the tripping movement in both directions, that is to say from the pole 14 towards the pole 16, and vice -versed.
  • the connection is unidirectional, because the trigger finger 52 of the mechanism 46 does not enter the housing 66 of the lever 30 belonging to the pole 16, but cooperates with the shoulder 62 in a single direction of rotation of the bar 26.
  • the transmission of the triggering movement takes place only to the left, that is to say from the trigger block 12 to the pole 16, but not in the opposite direction.
  • the tripping of the circuit breaker block 10 following an overload or a short circuit will not cause the tripping of the auxiliary block 12.
  • FIG. 10 does not provide for forced triggering in the event of discordance of the levers 24.54, but an automatic return of the lever 54 of the trigger block 12 by means of a ratchet 70.
  • the latter is advantageously integrated in the lug 56 of the handle 54.

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  • Breakers (AREA)
EP19880401006 1987-05-11 1988-04-25 Modulschutzschalter, bestehend aus einem mit einem mehrpoligen Leistungsschutzschalterblock zusammenwirkenden Auslöseblock Expired - Lifetime EP0295155B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8706623A FR2615323B1 (fr) 1987-05-11 1987-05-11 Disjoncteur modulaire a bloc declencheur auxiliaire associe a un bloc disjoncteur multipolaire
FR8706623 1987-05-11

Publications (2)

Publication Number Publication Date
EP0295155A1 true EP0295155A1 (de) 1988-12-14
EP0295155B1 EP0295155B1 (de) 1992-10-28

Family

ID=9350996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880401006 Expired - Lifetime EP0295155B1 (de) 1987-05-11 1988-04-25 Modulschutzschalter, bestehend aus einem mit einem mehrpoligen Leistungsschutzschalterblock zusammenwirkenden Auslöseblock

Country Status (4)

Country Link
EP (1) EP0295155B1 (de)
DE (1) DE3875528T2 (de)
ES (1) ES2035934T3 (de)
FR (1) FR2615323B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
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US6919785B2 (en) 2000-05-16 2005-07-19 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6995640B2 (en) 2000-05-16 2006-02-07 General Electric Company Pressure sensitive trip mechanism for circuit breakers
FR2891659A1 (fr) * 2005-09-30 2007-04-06 Hager Electro S A S Soc Par Ac Appareil electrique a boitier divise en deux sous-ensembles dont l'un est monte flottant sur l'autre.
DE102007046356A1 (de) * 2007-09-27 2009-04-23 Siemens Ag Schaltmechanik einer Fehlerstromschutzeinrichtung, Fehlerstromschutzeinrichtung sowie System mit einer Fehlerstromschutzeinrichtung und einem Leitungsschutzschalter

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FR2639760B1 (fr) * 1988-11-28 1996-02-09 Merlin Gerin Disjoncte ur modulaire equipe d'un bloc auxiliaire de declenchement a rearmement independant ou automatique
FR2656155B1 (fr) * 1989-12-18 1992-03-06 Merlin Gerin Auxiliaire d'adaptation pour interrupteur differentiel multipolaire.
FR2711840B1 (fr) * 1993-10-22 1996-01-26 Legrand Sa Interface d'adaptation pour interrupteur différentiel multipolaire.
IT1292453B1 (it) 1997-07-02 1999-02-08 Aeg Niederspannungstech Gmbh Gruppo rotante di contatti per interrutttori di alta portata
DE19819242B4 (de) 1998-04-29 2005-11-10 Ge Power Controls Polska Sp.Z.O.O. Thermomagnetischer Leistungsschalter
US6114641A (en) 1998-05-29 2000-09-05 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6087913A (en) 1998-11-20 2000-07-11 General Electric Company Circuit breaker mechanism for a rotary contact system
US6037555A (en) 1999-01-05 2000-03-14 General Electric Company Rotary contact circuit breaker venting arrangement including current transformer
US6166344A (en) 1999-03-23 2000-12-26 General Electric Company Circuit breaker handle block
US6262872B1 (en) 1999-06-03 2001-07-17 General Electric Company Electronic trip unit with user-adjustable sensitivity to current spikes
US6268991B1 (en) 1999-06-25 2001-07-31 General Electric Company Method and arrangement for customizing electronic circuit interrupters
US6218917B1 (en) 1999-07-02 2001-04-17 General Electric Company Method and arrangement for calibration of circuit breaker thermal trip unit
US6188036B1 (en) 1999-08-03 2001-02-13 General Electric Company Bottom vented circuit breaker capable of top down assembly onto equipment
US6252365B1 (en) 1999-08-17 2001-06-26 General Electric Company Breaker/starter with auto-configurable trip unit
US6710988B1 (en) 1999-08-17 2004-03-23 General Electric Company Small-sized industrial rated electric motor starter switch unit
US6396369B1 (en) 1999-08-27 2002-05-28 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
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US6377144B1 (en) 1999-11-03 2002-04-23 General Electric Company Molded case circuit breaker base and mid-cover assembly
EP1098343B1 (de) 1999-11-03 2005-09-21 AEG Niederspannungstechnik GmbH & Co. KG Drehkontaktanordnung für Schutzschalter
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US6882258B2 (en) 2001-02-27 2005-04-19 General Electric Company Mechanical bell alarm assembly for a circuit breaker
US6678135B2 (en) 2001-09-12 2004-01-13 General Electric Company Module plug for an electronic trip unit
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FR2988214B1 (fr) * 2012-03-13 2014-04-25 Hager Electro Sas Appareil electrique de protection modulaire constitue de sous-ensembles distincts.

Citations (4)

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Publication number Priority date Publication date Assignee Title
FR1536097A (fr) * 1966-09-07 1968-08-09 Stotz Kontakt Gmbh Disjoncteur de protection multipolaire pour courant de défaut
US3464045A (en) * 1967-05-11 1969-08-26 Gen Electric Circuit breaker selective trip mechanism
FR2132129A1 (de) * 1971-03-29 1972-11-17 Bbc Brown Boveri & Cie
FR2437692A1 (fr) * 1978-09-28 1980-04-25 Merlin Gerin Dispositif de protection differentielle a bloc differentiel accouple au bloc disjoncteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1536097A (fr) * 1966-09-07 1968-08-09 Stotz Kontakt Gmbh Disjoncteur de protection multipolaire pour courant de défaut
US3464045A (en) * 1967-05-11 1969-08-26 Gen Electric Circuit breaker selective trip mechanism
FR2132129A1 (de) * 1971-03-29 1972-11-17 Bbc Brown Boveri & Cie
FR2437692A1 (fr) * 1978-09-28 1980-04-25 Merlin Gerin Dispositif de protection differentielle a bloc differentiel accouple au bloc disjoncteur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6919785B2 (en) 2000-05-16 2005-07-19 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6995640B2 (en) 2000-05-16 2006-02-07 General Electric Company Pressure sensitive trip mechanism for circuit breakers
FR2891659A1 (fr) * 2005-09-30 2007-04-06 Hager Electro S A S Soc Par Ac Appareil electrique a boitier divise en deux sous-ensembles dont l'un est monte flottant sur l'autre.
DE102007046356A1 (de) * 2007-09-27 2009-04-23 Siemens Ag Schaltmechanik einer Fehlerstromschutzeinrichtung, Fehlerstromschutzeinrichtung sowie System mit einer Fehlerstromschutzeinrichtung und einem Leitungsschutzschalter
DE102007046356B4 (de) * 2007-09-27 2009-12-10 Siemens Ag Schaltmechanik einer Fehlerstromschutzeinrichtung, Fehlerstromschutzeinrichtung sowie System mit einer Fehlerstromschutzeinrichtung und einem Leitungsschutzschalter

Also Published As

Publication number Publication date
FR2615323B1 (fr) 1989-06-30
FR2615323A1 (fr) 1988-11-18
ES2035934T3 (es) 1993-05-01
DE3875528D1 (de) 1992-12-03
DE3875528T2 (de) 1993-05-13
EP0295155B1 (de) 1992-10-28

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