EP0066486B1 - Operating mechanism for a low-voltage multi-pole circuit breaker - Google Patents

Operating mechanism for a low-voltage multi-pole circuit breaker Download PDF

Info

Publication number
EP0066486B1
EP0066486B1 EP82400831A EP82400831A EP0066486B1 EP 0066486 B1 EP0066486 B1 EP 0066486B1 EP 82400831 A EP82400831 A EP 82400831A EP 82400831 A EP82400831 A EP 82400831A EP 0066486 B1 EP0066486 B1 EP 0066486B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
lever
breaker according
pole circuit
pole
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
Application number
EP82400831A
Other languages
German (de)
French (fr)
Other versions
EP0066486A1 (en
Inventor
Bernard Boichot-Castagne
Roger Case
Reynald Marin-Pache
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 EP0066486A1 publication Critical patent/EP0066486A1/en
Application granted granted Critical
Publication of EP0066486B1 publication Critical patent/EP0066486B1/en
Expired legal-status Critical Current

Links

Images

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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
    • 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
    • H01H71/1054—Means for avoiding unauthorised release
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/508—Latching devices between operating and release mechanism with serial latches, e.g. primary latch latched by secondary latch for requiring a smaller trip force

Definitions

  • the pivoting cradle directly drives the trigger hook during the rearming phase, which requires a large sliding stroke generating friction forces between the two mechanical members.
  • the cradle and the trigger hook must undergo appropriate surface treatments which increase the manufacturing cost of the assembly.
  • the object of the invention is to remedy these drawbacks and to allow the production of an operating mechanism with reduced friction which does not require additional surface treatments.
  • the mechanism according to the invention is characterized in that the upper link of the toggle joint is articulated to the trigger hook and is extended by a transmission lever cooperating with the cradle to cause the reset of the trigger hook in the armed position for attachment to the latch when moving the lever from the intermediate position to the reset position close to the open position.
  • the rearming of the mechanism via the upper link of the toggle joint generates a small sliding stroke of the transmission lever on the cradle, and the corresponding friction is negligible.
  • the free end of the transmission lever of the upper link is shaped as a control tab bearing on a sliding surface of the cradle between the intermediate and open positions of the lever.
  • the leg of the transmission lever is bent at right angles, extending transversely outwards from the gap formed between the support plates of the operating mechanism.
  • the upper link has a V-shaped bent structure, comprising a first lever arranged between the pivot axis of the toggle joint and the articulation axis of the trigger hook, and making a predetermined angle with the second transmission lever cooperating with the cradle.
  • the pivoting cradle is provided with a projection intended to come into abutment with the link tab to stop in a position of the lever any attempt to open the circuit breaker manually in the event of contact soldering, said tab automatically disappearing in front of the protrusion when the knee brace is broken and the contacts open normally.
  • the dual function of the control link of the upper link which is used alternately to drive the trigger hook to the armed position and the blocking stop of the lever cradle when the contacts are in the welded position.
  • the lock unlocking member advantageously comprises a half-moon mounted with limited rotation on an axis, and the bore of which comprises a radial extension intended to engage in a conjugate groove of the axis.
  • a torsion spring positions the half-moon relative to the lock, preventing any untimely triggering.
  • the bar coupled to the lower link of the toggle joint is guided in rotation by intermediate coaxial bearings bearing on the housing.
  • each contact arm being biased against a bearing face of the bar by means of a compression spring
  • the setting of the depression of each contact arm is effected by means of 'an adjustment shim of predetermined thickness, inserted in a groove of the bar to modify the angular position of said bearing face, the positioning of the shim being effected after separation of the contact arm at the against the force of the compression spring.
  • a cut-off block 10 of a low-voltage multipole circuit breaker is housed in a box 12 made of molded insulating material constituted by the assembly of an intermediate casing 14 with open bottoms, a cover 16 d ' obturation of the upper bottom and of a base 18 for closing the lower bottom.
  • the casing 14 comprises a central partition 20 parallel to the bottoms and dividing the internal space of the housing 12 into two upper 22 and lower 24 compartments isolated from one another.
  • the cover 16, the casing 14 and the base 18 are fixed to each other by assembly means (not shown).
  • the cover 16 has an opening 25 for the passage of an operating lever 26 associated with the control mechanism 28 arranged in the upper compartment 22.
  • the poles have identical structures and are juxtaposed transversely in the lower compartment 24 according to planes parallel to that of FIG. 1.
  • the control mechanism 28 is associated with an intermediate pole and transmits the movement to the adjacent poles by means of a common transverse bar 30, made of insulating material.
  • Each pole comprises an arm 32 of movable contact 34 cooperating in the closed position with a fixed contact 36 secured to a conductor 38 in the form of a loop in electrical connection with a terminal 40 for connection of the cut-off block 10.
  • fixed 36 and mobile 34 is associated with an arc extinguishing chamber 42 with metal sheets of deionization, arranged in the lower compartment 24 between the conductor 38 and the base 18.
  • the transmission rod 30 is pivotally mounted in the lower compartment 24 and extends perpendicularly to the different contact arms 32 by driving them simultaneously when the control mechanism 28 is actuated manually controlled by the lever 26 and automatically by a block interchangeable magneto-thermal release (not shown).
  • the latter is positioned in a transverse housing 44 of the housing 12, and is electrically connected to the poles of the breaking unit 10 by connection screws (not shown).
  • a compression spring 46 interposed between the bar 30 and the contact arm 32 of each pole, ensures an appropriate contact pressure in the closed position of the circuit breaker.
  • the operating lever 26 is capable of occupying three stable angular positions, namely an extreme position F for closing, an intermediate position D for tripping on a fault detected by the trip unit, and an extreme opposite position 0 for manual opening of the circuit breaker .
  • the control mechanism 28 (FIGS. 1 to 3) is mounted between two fixed and parallel plates 48, 50, and includes a transmission toggle link 52 with an intermediate axis 54 on which two pairs of rods 56, 58 are articulated, symmetrical with respect to the median plane of the mechanism 28.
  • the lower link 56 of each pair is mechanically coupled to the transverse bar 30 by a connecting pin 60.
  • Each upper link 58 has a V-shaped structure and is articulated by a rivet or axis 62 to a lateral branch 63 of a trigger hook 64 extending in the interval between the plates 48, 50.
  • the mechanism 38 comprises two traction springs 66 hung between the axis 54 of the toggle joint 52 and a cradle 68 supporting the lever 26,
  • the cradle 68 is pivotally mounted between the positions O and F of the lever 26 on a transverse pivot 70 projecting from the plates 48, 50.
  • the pivot 70 serves as a stop for the hook of trigger 64 when it comes to the disarmed position (FIG. 1), corresponding to position D of the lever 26.
  • the pivoting cradle 68 of the lever 26 is provided with a reset rod 72 of the trigger block (not shown) equipped with an energy accumulator device with striker.
  • the trigger hook 64 is mounted with limited rotation between the armed and disarmed positions on a fixed axis 74 secured to each plate 48, 50.
  • a hooking spout 76 which engages with a lock 78 during the pivoting of the hook 64 towards the armed position.
  • the lock 78 is pivotally mounted on a fixed axis 80 carried by the plates 48, 50, and a return spring 84 threaded on the axis 80 biases the lock 78 in support of a stop 82, formed by a rod parallel to axis 80.
  • a control member for the lock 78 comprises a half-moon 86 made of plastic material, mounted between the plates 48.50 for rotation on an axis 88 extending parallel to the transverse axis 80 of the lock 78.
  • the half-moon 86 balanced with respect to its axis 88, is provided with a central extension or boss 90 arranged inside the bore 92 of the half-moon 86, and intended to engage in a groove 94 conjugate with the axis 88 ( Figures 3 and 8).
  • the latter is positioned in aligned orifices of the plates 48, 50, and is held in place by the half-moon 86.
  • the captive mounting of the pin 88 does not require any means of immobilization in translation, such as circlips.
  • the central boss 90 comes directly from molding.
  • the half-moon 86 is provided with an unlocking tab 96 cooperating with the striker of the trigger block to cause the triggering of the mechanism 28 in the event of a fault.
  • the triggering results from a pivoting of the half-moon 86 in the trigonometric direction indicated by the arrow F i (fig. 2) followed by the introduction of the locking nose 98 into the window 100 of the lock 78.
  • the latter does not is no longer locked by the half-moon 86, and the torque exerted by the trigger hook 64 in the armed position causes the lock 78 to tilt clockwise (arrow F 2 ) towards the unlocked position.
  • the hooking spout 76 is then released from the latch 78, and the cro trip device 64 automatically pivots around the axis 74 towards the disarmed position under the action of the springs 66 of the mechanism 28.
  • an elastic means positions the half-moon 86 relative to the latch 78 so to provide a predetermined clearance d (fig. 1) between a projection 102 of the half-moon 86 and the plate 48.
  • the presence of the clearance d prevents any transmission of shocks from the plate 48 to the half-moon 86.
  • the elastic means for positioning the half-moon 86 is produced by a torsion spring 104, one strand 106 of which rests on two bosses 108 of the half-moon 86 (fig. 9).
  • the spring 104 is threaded on the rod 82 of the stop of the latch 78, and the other strand 109 of the spring 104 is in contact with a curved tab of the fixed plate 48. Note the dual function of the torsion spring 104 which serves as a means of returning the half-moon 86 to the locking position of the lock 78 and as a means of elastic positioning of the half-moon 86 relative to the plate 48 and to the lock 78.
  • Each upper link 58 in V of the toggle joint 52 comprises a first lever 110 delimited by the axis 54 of pivoting of the toggle joint and the axis 62 of articulation of the trigger hook 64.
  • a second lever 112 extends from the axis 62 towards the cradle 68 at an acute angle with the first lever 110.
  • the free end of the second lever 112 is shaped as a transmission lug 114 folded at right angles and cooperating with the pivoting cradle 68, so as to drive the trigger hook 64 to the armed position for hooking the spout 76 to the latch 78.
  • This reset operation of the mechanism 28 occurs during the clockwise movement of the lever 26 from the trigger position D to the reset position R.
  • the curved tab 114 of each link 58 extends transversely towards the outside of the gap formed between the plates 48, 50, and is supported between the positions D and R of the lever 26 on a front surface 116 of slightly curved sliding from cradle 68.
  • the pivoting cradle 68 further includes a projection 118 disposed between the curved portion 116 and the handle 26 and intended to come into abutment with the tab 114 of each upper link 58 to stop in position S of the handle 26 any attempt to open manually of the circuit breaker in the event of accidental soldering of the contacts (fig. 6).
  • the tab 114 does not interfere with the trajectory of the projection 118 of the cradle 68.
  • the transverse bar 30 for supporting the movable contact arms 32 of the different poles is coupled to the lower links 56 of the mechanism 28 and is positioned by two pads 120, 122 coaxial or intermediate anti-wear bearings, separated transversely from each other by the width of the central pole.
  • the pads 120, 122 made of plastic material bear on the housings of the casing 14 and of the socket 18 at the level of the internal partition walls of the pole compartments.
  • the rotational mounting of the bar 30 does not require any special guide axis, nor end bearings in the opposite side walls of the housing 12.
  • the assembly of each intermediate pad 120, 122 around the bar 30 is effected by snap-fastening of the free ends of a semi-open ring with axial slit or of two half-rings 124, 125 of conjugate shapes.
  • the driving in of the movable contact arms 32 of different poles is dependent on the imperfections in the molding of the plastic material parts and the manufacturing tolerances of the members of the mechanism 28.
  • the setting of the driving in by pole takes place by means of a shim 126 ( FIGS. 1, 12 and 13) of adjusting the relative position of the movable contact 34 relative to the associated fixed contact 36.
  • Each wedge 126 is made of plastic material and is inserted in a groove of the bar 30 so as to slightly modify the angular position of the bearing face of the contact arm 32.
  • the positioning of each wedge 126 on the bar 30 s' operates after manual separation of the contact arm 32 corresponding against the force of the compression spring 46. Adjustment shims 126 having different thicknesses can be used to best compensate for manufacturing tolerances.
  • the mechanism 28 is rearmed by manual movement of the lever 26 clockwise from position D to a reset position R close to position O.
  • the transmission lever 112 of each upper link 58 of the toggle joint 52 is driven upwards by reaction of the surface 116 of the cradle 68 on the tab 114 at right angles.
  • the latter moves on the surface 116 in a sliding movement of small amplitude whose corresponding reaction forces do not generate significant friction. This results in a tilting around the axis 74 of the trigger hook 64 urged in a clockwise direction towards the armed position (fig. 5), in which the hooking spout 76 hangs on the latch 78 in support of the stop 82.
  • the half-moon 86 maintains the lock 78 in this position, and the tab 114 of each link 58 remains in stable support on the surface 116 of the cradle 68.
  • the rod rearming auxiliary 72 integral with the cradle 68 causes the rearming of the energy storage device associated with the trip unit.
  • the closing of the circuit breaker occurs in a conventional manner by a reverse rotation of the handle 26 towards the opposite position F (fig. 7), urging the axes 62, 54, 60 of the toggle joint 52 substantially aligned position.
  • the clockwise pivoting movement of the tab 114 of the upper links 58 does not interfere with the trajectory in the opposite direction of the projection 118 of the cradle 68 actuated towards the position F of the lever 26.

Description

L'invention est relative à un disjoncteur électrique multipolaire à boîtier moulé renfermant un mécanisme de manoeuvre de l'équipage mobile comprenant par pôle un contact mobile porté par un bras de contact, ledit mécanisme comportant:

  • - une genouillère à biellettes inférieure et supérieure coopérant avec un crochet de déclenchement automatique et une manette de commande manuelle pour l'actionnement de l'équipage mobile,
  • - un berceau pivotant de support de la manette déplaçable entre des positions extrêmes stables de fermeture et d'ouverture,
  • - un barreau en matériau isolant, accouplé mécaniquement à une biellette inférieure de la genouillère pour entraîner à pivotement alterné les bras de contact de tous les pôles lors de la fermeture ou de l'ouverture des contacts du disjoncteur,
  • - au moins un ressort d'actionnement du mécanisme ancré entre le berceau et l'axe intermédiaire d'articulation des biellettes de la genouillère,
  • - un verrou d'accrochage du crochet de déclenchement en position armée,
  • - et un organe de déverrouillage du verrou piloté par le bloc déclencheur pour assurer la libération du crochet de déclenchement lors de l'apparition d'un défaut, la manette étant entraînée durant cette operation dans une position intermédiaire située entre les positions d'ouverture et de fermeture.
The invention relates to a multipolar electrical circuit breaker with molded housing containing a mechanism for operating the moving element comprising, by pole, a moving contact carried by a contact arm, said mechanism comprising:
  • - a knee lever with lower and upper links cooperating with an automatic release hook and a manual control lever for actuating the moving assembly,
  • - a pivoting cradle for supporting the handle which can be moved between extreme stable closing and opening positions,
  • - a bar of insulating material, mechanically coupled to a lower link of the toggle joint to drive the contact arms of all the poles alternately when the contacts of the circuit breaker are closed or opened,
  • - at least one actuating spring of the mechanism anchored between the cradle and the intermediate axis of articulation of the links of the toggle joint,
  • - a latch for hooking the trigger hook in the armed position,
  • - And a lock unlocking device controlled by the trigger block to ensure the release of the trigger hook when a fault occurs, the handle being driven during this operation in an intermediate position located between the open positions and closing.

Dans un mécanisme de manoeuvre connu du genre mentionné, le berceau pivotant entraîne directement le crochet de déclenchement lors de la phase de réarmement, qui nécessite une course de glissement importante engendrant des forces de frottement entre les deux organes mécaniques. Pour éviter l'usure prématurée du mécanisme, le berceau et le crochet de déclenchement doivent subir des traitements de surface appropriés qui augmentent le coût de fabrication de l'ensemble.In a known operating mechanism of the kind mentioned, the pivoting cradle directly drives the trigger hook during the rearming phase, which requires a large sliding stroke generating friction forces between the two mechanical members. To avoid premature wear of the mechanism, the cradle and the trigger hook must undergo appropriate surface treatments which increase the manufacturing cost of the assembly.

L'invention a pour but de remédier à ces inconvénients et de permettre la réalisation d'un mécanisme de manoeuvre à frottement réduit ne nécessitant pas de traitements de surface additionnels.The object of the invention is to remedy these drawbacks and to allow the production of an operating mechanism with reduced friction which does not require additional surface treatments.

Le mécanisme selon l'invention est caractérisé en ce que la biellette supérieure de la genouillère est articulée au crochet de déclenchement et est prolongée par un levier de transmission coopérant avec le berceau pour provoquer le réarmement du crochet de déclenchement en position armée d'accrochage au verrou lors du déplacement de la manette de la position intermédiaire vers la position de réarmement voisine de la position d'ouverture. Le réarmement du mécanisme par l'intermédiaire de la biellette supérieure de la genouillère engendre une faible course de glissement du levier de transmission sur le berceau, et le frottement correspondant est négligeable.The mechanism according to the invention is characterized in that the upper link of the toggle joint is articulated to the trigger hook and is extended by a transmission lever cooperating with the cradle to cause the reset of the trigger hook in the armed position for attachment to the latch when moving the lever from the intermediate position to the reset position close to the open position. The rearming of the mechanism via the upper link of the toggle joint generates a small sliding stroke of the transmission lever on the cradle, and the corresponding friction is negligible.

Selon une caractéristique de l'invention, l'extrémité libre du levier de transmission de la biellette supérieure est conformée en patte de commande prenant appui sur une surface de glissement du berceau entre les positions intermédiaire et d'ouverture de la manette. La patte du levier de transmission est pliée en équerre en s'étendant transversalement vers l'extérieur de l'intervalle ménagé entre les platines de support du mécanisme de manoeuvre.According to a characteristic of the invention, the free end of the transmission lever of the upper link is shaped as a control tab bearing on a sliding surface of the cradle between the intermediate and open positions of the lever. The leg of the transmission lever is bent at right angles, extending transversely outwards from the gap formed between the support plates of the operating mechanism.

Selon une autre caractéristique de l'invention, la biellette supérieure présente une structure coudée en forme de V, comprenant un premier levier agencé entre l'axe de pivotement de la genouillère et l'axe d'articulation du crochet de déclenchement, et faisant un angle prédéterminé avec le deuxième levier de transmission coopérant avec le berceau.According to another characteristic of the invention, the upper link has a V-shaped bent structure, comprising a first lever arranged between the pivot axis of the toggle joint and the articulation axis of the trigger hook, and making a predetermined angle with the second transmission lever cooperating with the cradle.

Le berceau pivotant est doté d'une saillie destinée à venir en butée de la patte de la biellette pour stopper dans une position de la manette toute tentative d'ouverture manuelle du disjoncteur encas de soudure des contacts, ladite patte s'effaçant automatiquement devant la saillie lors d'une brisure de la genouillère et de l'ouverture normale des contacts. On remarque la double fonction de la patte de commande de la biellette supérieure, qui sert alternativement à l'entraînement du crochet de déclenchement vers la position armée et de butée de blocage du berceau de la manette lorsque les contacts se trouvent en position soudé.The pivoting cradle is provided with a projection intended to come into abutment with the link tab to stop in a position of the lever any attempt to open the circuit breaker manually in the event of contact soldering, said tab automatically disappearing in front of the protrusion when the knee brace is broken and the contacts open normally. Note the dual function of the control link of the upper link, which is used alternately to drive the trigger hook to the armed position and the blocking stop of the lever cradle when the contacts are in the welded position.

L'organe de déverrouillage du verrou comporte avantageusement une demi-lune montée à rotation limitée sur un axe, et dont l'alésage comporte une extension radiale destinée à s'engager dans une gorge conjuguée de l'axe. Un ressort de torsion positionne la demi-lune par rapport au verrou en empêchant tout déclenchement intempestif.The lock unlocking member advantageously comprises a half-moon mounted with limited rotation on an axis, and the bore of which comprises a radial extension intended to engage in a conjugate groove of the axis. A torsion spring positions the half-moon relative to the lock, preventing any untimely triggering.

Selon une autre caractéristique de l'invention, le barreau accouplé à la biellette inférieure de la genouillère est guidé en rotation par des coussinets coaxiaux intermédiaires prenant appui sur le boîtier.According to another characteristic of the invention, the bar coupled to the lower link of the toggle joint is guided in rotation by intermediate coaxial bearings bearing on the housing.

Selon un développement de l'invention, chaque bras de contact étant sollicité contre une face d'appui du barreau par l'intermédiaire d'un ressort de compression, le réglage de l'enfoncement de chaque bras de contact s'opère au moyen d'une cale d'adjus- tement d'épaisseur prédéterminée, insérée dans une rainure du barreau pour modifier la position angulaire de ladite face d'appui, la mise en place de la cale s'effectuant après écartement du bras de contact à l'encontre de la force du ressort de compression.According to a development of the invention, each contact arm being biased against a bearing face of the bar by means of a compression spring, the setting of the depression of each contact arm is effected by means of 'an adjustment shim of predetermined thickness, inserted in a groove of the bar to modify the angular position of said bearing face, the positioning of the shim being effected after separation of the contact arm at the against the force of the compression spring.

D'autres avantages et caractéristiques ressortiront plus clairement de l'exposé qui va suivre d'un mode de mise en oeuvre de l'invention, donné à titre d'exemple non limitatif et représenté aux dessins annexés, dans lesquels:

  • la figure 1 est une vue en coupe d'un bloc de coupure d'un disjoncteur multipolaire représenté en position de fermeture et équipé d'un mécanisme de manoeuvre selon l'invention;
  • la figure 2 montre une vue en élévation du mécanisme de manoeuvre représenté en position D de déclenchement sur défaut;
  • la figure 3 est une vue en plan de la figure 2, la manette de commande étant enlevée;
  • les figures 4 à 7 sont des vues schématiques du mécanisme respectivement en positions D de déclenchement, R armé-ouvert, S de blocage de la manette lorsque les contacts sont soudés, et F de fermeture du disjoncteur;
  • la figure 8 est une vue en coupe selon la ligne VIII-VIII de la figure 2;
  • la figure 9 est une vue partielle de la figure 2, montrant le verrou en position verrouillée par la demi-lune;
  • la figure 10 est une vue de dessous du carter intermédiaire en position montée du barreau;
  • la figure 11 est une vue en coupe selon la ligne XI-XI de la figure 10;
  • la figure 12 montre une vue partielle en élévation du barreau en position insérée de la cale d'adjuste- ment;
  • la figure 13 est une vue en coupe selon la ligne XIII-XIII de la figure 12.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, given by way of nonlimiting example and shown in the appended drawings, in which:
  • Figure 1 is a sectional view of a cut-off block of a multipole circuit breaker shown in the closed position and equipped with an operating mechanism according to the invention;
  • Figure 2 shows an elevational view of the operating mechanism shown in position D triggering on fault;
  • Figure 3 is a plan view of Figure 2 with the control handle removed;
  • FIGS. 4 to 7 are schematic views of the mechanism respectively in triggering positions D, armed-open R, S for locking the handle when the contacts are welded, and F for closing the circuit breaker;
  • Figure 8 is a sectional view along line VIII-VIII of Figure 2;
  • Figure 9 is a partial view of Figure 2 showing the latch in the position locked by the half moon;
  • Figure 10 is a bottom view of the intermediate casing in the mounted position of the bar;
  • Figure 11 is a sectional view along line XI-XI of Figure 10;
  • FIG. 12 shows a partial elevation view of the bar in the inserted position of the adjustment shim;
  • FIG. 13 is a sectional view along the line XIII-XIII of FIG. 12.

Sur la figure 1, un bloc de coupure 10 d'un disjoncteur multipolaire à basse tension est logé dans un boîtier 12 en matériau isolant moulé constitué par l'assemblage d'un carter 14 intermédiaire à fonds ouverts, d'un couvercle 16 d'obturation du fond supérieur et d'un socle 18 de fermeture du fond inférieur. Le carter 14 comporte une cloison 20 médiane parallèle aux fonds et partageant l'espace interne du boîtier 12 en deux compartiments supérieur 22 et inférieur 24 isolés l'un de l'autre. Le couvercle 16, le carter 14 et le socle 18 sont fixés l'un à l'autre par des moyens d'assemblage (non représentés). Le couvercle 16 est doté d'une ouverture 25 pour le passage d'une manette 26 de manoeuvre associée au mécanisme de commande 28 disposé dans le compartiment supérieur 22. Les pôles présentent des structures identiques et sont juxtaposés transversalement dans le compartiment inférieur 24 selon des plans parallèles à celui de la figure 1. Le mécanisme de commande 28 est associé à un pôle intermédiaire et transmet le mouvement aux pôles adjacents par l'intermédiaire d'un barreau 30 commun transversal, en matériau isolant.In FIG. 1, a cut-off block 10 of a low-voltage multipole circuit breaker is housed in a box 12 made of molded insulating material constituted by the assembly of an intermediate casing 14 with open bottoms, a cover 16 d ' obturation of the upper bottom and of a base 18 for closing the lower bottom. The casing 14 comprises a central partition 20 parallel to the bottoms and dividing the internal space of the housing 12 into two upper 22 and lower 24 compartments isolated from one another. The cover 16, the casing 14 and the base 18 are fixed to each other by assembly means (not shown). The cover 16 has an opening 25 for the passage of an operating lever 26 associated with the control mechanism 28 arranged in the upper compartment 22. The poles have identical structures and are juxtaposed transversely in the lower compartment 24 according to planes parallel to that of FIG. 1. The control mechanism 28 is associated with an intermediate pole and transmits the movement to the adjacent poles by means of a common transverse bar 30, made of insulating material.

Chaque pôle comporte un bras 32 de contact mobile 34 coopérant en position de fermeture avec un contact fixe 36 solidaire d'un conducteur 38 en forme de boucle en liaison électrique avec une borne 40 de raccordement du bloc de coupure 10. A chaque paire de contacts fixe 36 et mobile 34 est associée une chambre d'extinction d'arc 42 à tôles métalliques de désionisation, agencée dans le compartiment inférieur 24 entre le conducteur 38 et le socle 18.Each pole comprises an arm 32 of movable contact 34 cooperating in the closed position with a fixed contact 36 secured to a conductor 38 in the form of a loop in electrical connection with a terminal 40 for connection of the cut-off block 10. At each pair of contacts fixed 36 and mobile 34 is associated with an arc extinguishing chamber 42 with metal sheets of deionization, arranged in the lower compartment 24 between the conductor 38 and the base 18.

Le barreau 30 de transmission est monté à pivotement dans le compartiment inférieur 24 et s'étend perpendiculairement aux différents bras de contact 32 en les entraînant simultanément lors de l'actionnement du mécanisme de commande 28 piloté manuellement par la manette 26 et automatiquement par un bloc déclencheur (non représenté) magnéto- thermique interchangeable. Ce dernier est positionné dans un logement 44 transversal du boîtier 12, et est raccordé électriquement aux pôles du bloc de coupure 10 par des vis de connexion (non représentées). Un ressort de compression 46, intercalé entre le barreau 30 et le bras de contact 32 de chaque pôle, assure une pression de contact appropriée en position de fermeture du disjoncteur. La manette 26 de manoeuvre est susceptible d'occuper trois positions angulaires stables, à savoir une position extrême F de fermeture, une position intermédiaire D de déclenchement sur défaut détecté par le bloc déclencheur, et une position extrême opposée 0 d'ouverture manuelle du disjoncteur.The transmission rod 30 is pivotally mounted in the lower compartment 24 and extends perpendicularly to the different contact arms 32 by driving them simultaneously when the control mechanism 28 is actuated manually controlled by the lever 26 and automatically by a block interchangeable magneto-thermal release (not shown). The latter is positioned in a transverse housing 44 of the housing 12, and is electrically connected to the poles of the breaking unit 10 by connection screws (not shown). A compression spring 46, interposed between the bar 30 and the contact arm 32 of each pole, ensures an appropriate contact pressure in the closed position of the circuit breaker. The operating lever 26 is capable of occupying three stable angular positions, namely an extreme position F for closing, an intermediate position D for tripping on a fault detected by the trip unit, and an extreme opposite position 0 for manual opening of the circuit breaker .

Le mécanisme de commande 28 (figures 1 à 3) est monté entre deux platines 48, 50 fixes et parallèles, et comporte une genouillère 52 de transmission à axe 54 intermédiaire sur lequel sont articulées deux paires de biellettes 56, 58, symétriques par rapport au plan médian du mécanisme 28. A l'extrémité opposée de l'axe 54, la biellette inférieure 56 de chaque paire est accouplée mécaniquement au barreau 30 transversal par un maneton de liaison 60. Chaque biellette supérieure 58 présente une structure coudée en V et est articulée par un rivet ou axe 62 à une branche latérale 63 d'un crochet de déclenchement 64 s'étendant dans l'intervalle entre les platines 48, 50. Le mécanisme 38 comprend deux ressorts 66 de traction accrochés entre l'axe 54 de la genouillère 52 et un berceau 68 support de la manette 26, Le berceau 68 est monté à pivotement entre les positions O et F de la manette 26 sur un pivot 70 transversal faisant saillie des platines 48, 50. Le pivot 70 sert de butée au crochet de déclenchement 64 lors de sa venue en position désarmée (figure 1), correspondant à la position D de la manette 26.The control mechanism 28 (FIGS. 1 to 3) is mounted between two fixed and parallel plates 48, 50, and includes a transmission toggle link 52 with an intermediate axis 54 on which two pairs of rods 56, 58 are articulated, symmetrical with respect to the median plane of the mechanism 28. At the opposite end of the axis 54, the lower link 56 of each pair is mechanically coupled to the transverse bar 30 by a connecting pin 60. Each upper link 58 has a V-shaped structure and is articulated by a rivet or axis 62 to a lateral branch 63 of a trigger hook 64 extending in the interval between the plates 48, 50. The mechanism 38 comprises two traction springs 66 hung between the axis 54 of the toggle joint 52 and a cradle 68 supporting the lever 26, The cradle 68 is pivotally mounted between the positions O and F of the lever 26 on a transverse pivot 70 projecting from the plates 48, 50. The pivot 70 serves as a stop for the hook of trigger 64 when it comes to the disarmed position (FIG. 1), corresponding to position D of the lever 26.

Le berceau 68 pivotant de la manette 26 est doté d'une tringle de réarmement 72 du bloc déclencheur (non représenté) équipé d'un dispositif accumulateur d'énergie à percuteur. Le crochet de déclenchement 64 est monté à rotation limitée entre les positions armée et désarmée sur un axe 74 fixe assujetti à chaque platine 48, 50. A l'extrémité libre du crochet 64 est agencé un bec d'accrochage 76 venant en enga- gementavec un verrou 78 lors du pivotement du crochet 64 vers la position armée. Le verrou 78 est monté à pivotement sur un axe 80 fixe porté par les platines 48, 50, et un ressort de rappel 84 enfilé sur l'axe 80 sollicite le verrou 78 en appui d'une butée 82, formée par une tige parallèle à l'axe 80.The pivoting cradle 68 of the lever 26 is provided with a reset rod 72 of the trigger block (not shown) equipped with an energy accumulator device with striker. The trigger hook 64 is mounted with limited rotation between the armed and disarmed positions on a fixed axis 74 secured to each plate 48, 50. At the free end of the hook 64 is arranged a hooking spout 76 which engages with a lock 78 during the pivoting of the hook 64 towards the armed position. The lock 78 is pivotally mounted on a fixed axis 80 carried by the plates 48, 50, and a return spring 84 threaded on the axis 80 biases the lock 78 in support of a stop 82, formed by a rod parallel to axis 80.

Un organe de commande du verrou 78 comporte une demi-lune 86 en matériau plastique, montée entre les platines 48,50 à rotation sur un axe 88 s'étendant parallèlement à l'axe 80 transversal du verrou 78. La demi-lune 86, équilibrée par rapport à son axe 88, est munie d'une extension ou bossage 90 central agencé à l'intérieur de l'alésage 92 de la demi-lune 86, et destiné à s'engager dans une gorge 94 conjuguée de l'axe 88 (figures 3 et 8). Ce dernier est positionné dans des orifices alignés des platines 48, 50, et est maintenu en place par la demi-lune 86. Le montage imperdable de l'axe 88 ne nécessite aucun moyen d'immobilisation en translation, tels des circlips. Le bossage 90centralvientdirectementde moulage.A control member for the lock 78 comprises a half-moon 86 made of plastic material, mounted between the plates 48.50 for rotation on an axis 88 extending parallel to the transverse axis 80 of the lock 78. The half-moon 86, balanced with respect to its axis 88, is provided with a central extension or boss 90 arranged inside the bore 92 of the half-moon 86, and intended to engage in a groove 94 conjugate with the axis 88 (Figures 3 and 8). The latter is positioned in aligned orifices of the plates 48, 50, and is held in place by the half-moon 86. The captive mounting of the pin 88 does not require any means of immobilization in translation, such as circlips. The central boss 90 comes directly from molding.

La demi-lune 86 est dotée d'une patte 96 de déverrouillage coopérant avec le percuteur du bloc déclencheur pour provoquer le déclenchement du mécanisme 28 en cas de défaut. Le déclenchement résulte d'un pivotement de la demi-lune 86 dans le sens trigonométrique indiqué par la flèche Fi (fig. 2) suivi de l'introduction du nez de verrouillage 98 dans la fenêtre 100 du verrou 78. Ce dernier n'est plus verrouillé par la demi-lune 86, et le couple exercé par le crochet 64 de déclenchement en position armée provoque le basculement du verrou 78 dans le sens horaire (flèche F2) vers la position deverrouillée. Le bec d'accrochage 76 est alors libéré du verrou 78, et le crochet de déclenchement 64 pivote automatiquement autour de l'axe 74 vers la position désarmée sous l'action des ressorts 66 du mécanisme 28.The half-moon 86 is provided with an unlocking tab 96 cooperating with the striker of the trigger block to cause the triggering of the mechanism 28 in the event of a fault. The triggering results from a pivoting of the half-moon 86 in the trigonometric direction indicated by the arrow F i (fig. 2) followed by the introduction of the locking nose 98 into the window 100 of the lock 78. The latter does not is no longer locked by the half-moon 86, and the torque exerted by the trigger hook 64 in the armed position causes the lock 78 to tilt clockwise (arrow F 2 ) towards the unlocked position. The hooking spout 76 is then released from the latch 78, and the cro trip device 64 automatically pivots around the axis 74 towards the disarmed position under the action of the springs 66 of the mechanism 28.

Pour évitertout déclenchement intempestif du mécanisme 28, susceptible d'intervenir par l'action de chocs ou de vibrations occasionnés lors des mouvements de fermeture et d'ouverture du disjoncteur, un moyen élastique positionne la demi-lune 86 par rapport au verrou 78 de manière à ménager un jeu d (fig. 1) prédéterminé entre une saillie 102 de la demi-lune 86 et la platine 48. La présence du jeu d évite toute transmission de chocs de la platine 48 vers la demi-lune 86. Le moyen élastique de positionnement de la demi-lune 86 est réalisé par un ressort de torsion 104 dont un brin 106 prend appui sur deux bossages 108 de la demi-lune 86 (fig. 9). Le ressort 104 est enfilé sur la tige 82 de butée du verrou 78, et l'autre brin 109 du ressort 104 se trouve en appui d'une patte recourbée de la platine 48 fixe. On remarque la double fonction du ressort de torsion 104 qui sert de moyen de rappel de la demi-lune 86 vers la position de verrouillage du verrou 78 et de moyen de positionnement élastique de la demi-lune 86 par rapport à la platine 48 et au verrou 78.To avoid any untimely triggering of the mechanism 28, capable of intervening by the action of shocks or vibrations caused during the closing and opening movements of the circuit breaker, an elastic means positions the half-moon 86 relative to the latch 78 so to provide a predetermined clearance d (fig. 1) between a projection 102 of the half-moon 86 and the plate 48. The presence of the clearance d prevents any transmission of shocks from the plate 48 to the half-moon 86. The elastic means for positioning the half-moon 86 is produced by a torsion spring 104, one strand 106 of which rests on two bosses 108 of the half-moon 86 (fig. 9). The spring 104 is threaded on the rod 82 of the stop of the latch 78, and the other strand 109 of the spring 104 is in contact with a curved tab of the fixed plate 48. Note the dual function of the torsion spring 104 which serves as a means of returning the half-moon 86 to the locking position of the lock 78 and as a means of elastic positioning of the half-moon 86 relative to the plate 48 and to the lock 78.

Chaque biellette supérieure 58 en V de la genouillère 52 comporte un premier levier 110 délimitée par l'axe 54 de pivotement de la genouillère et l'axe 62 d'articulation du crochet de déclenchement 64. Un deuxième levier 112 s'étend à partir de l'axe 62 vers le berceau 68 en faisant un angle aigu avec le premier levier 110. L'extrémité libre du deuxième levier 112 est conformée en patte 114 de transmission pliée en équerre et coopérant avec le berceau 68 pivotant, de manière à entraîner le crochet de déclenchement 64 vers la position armée d'accrochage du bec 76 au verrou 78. Cette opération de réarmement du mécanisme 28 intervient lors du déplacement dans le sens horaire de la manette 26 depuis la position D de déclenchement vers la position R de réarmement. La patte 114 recourbée de chaque biellette 58 s'étend transversalement vers l'extérieur de l'intervalle ménagé entre les platines 48, 50, et prend appui entre les positions D et R de la manette 26 sur une surface frontale 116 de glissement légèrement incurvée du berceau 68.Each upper link 58 in V of the toggle joint 52 comprises a first lever 110 delimited by the axis 54 of pivoting of the toggle joint and the axis 62 of articulation of the trigger hook 64. A second lever 112 extends from the axis 62 towards the cradle 68 at an acute angle with the first lever 110. The free end of the second lever 112 is shaped as a transmission lug 114 folded at right angles and cooperating with the pivoting cradle 68, so as to drive the trigger hook 64 to the armed position for hooking the spout 76 to the latch 78. This reset operation of the mechanism 28 occurs during the clockwise movement of the lever 26 from the trigger position D to the reset position R. The curved tab 114 of each link 58 extends transversely towards the outside of the gap formed between the plates 48, 50, and is supported between the positions D and R of the lever 26 on a front surface 116 of slightly curved sliding from cradle 68.

Le berceau 68 pivotant comporte de plus une saillie 118 disposée entre la partie incurvée 116 et la manette 26 et destinée à venir en butée de la patte 114 de chaque biellette 58 supérieure pour stopper en position S de la manette 26 toute tentative d'ouverture manuelle du disjoncteur en cas de soudure accidentelle des contacts (fig. 6). En fonctionnement normal du disjoncteur, correspondant au non soudage des contacts, la patte 114 n'interfère pas avec la trajectoire de la saillie 118 du berceau 68.The pivoting cradle 68 further includes a projection 118 disposed between the curved portion 116 and the handle 26 and intended to come into abutment with the tab 114 of each upper link 58 to stop in position S of the handle 26 any attempt to open manually of the circuit breaker in the event of accidental soldering of the contacts (fig. 6). In normal operation of the circuit breaker, corresponding to the non-welding of the contacts, the tab 114 does not interfere with the trajectory of the projection 118 of the cradle 68.

Le réarmement du mécanisme 28 par l'intermédiaire des biellettes supérieures 58 de la genouillère 52 engendre une faible course de glissement de chaque biellette 58 sur la partie incurvée 116 du berceau 68 pivotant. Le frottement correspondant est négligeable par rapport à un dispositif classique de réarmement par le crochet de déclenchement 64 ce qui permet d'utiliser des pièces non traitées. Le blocage de la manette 26 en position S intervient naturellement en cas de soudage des contacts par interférence du berceau 68 avec les biellettes supérieures 58 de la genouillère 52.The rearming of the mechanism 28 by means of the upper links 58 of the toggle joint 52 generates a small sliding travel of each link 58 on the curved part 116 of the pivoting cradle 68. The corresponding friction is negligible compared to a conventional device for resetting by the trigger hook 64 which allows the use of untreated parts. The locking of the lever 26 in position S occurs naturally in the event of welding of the contacts by interference of the cradle 68 with the upper links 58 of the toggle joint 52.

Sur les figures 10 et 11, le barreau 30 transversal de support des bras de contacts mobiles 32 des différents pôles est accouplé aux biellettes inférieures 56 du mécanisme 28 et est positionné par deux coussinets 120, 122 coaxiaux ou paliers intermédiaires anti-usure, séparés transversalement l'un de l'autre par la largeur du pôle central. Les coussinets 120, 122 en matériau plastique prennent appui sur les boîtiers du carter 14 et dusocle 18 au niveau des parois internes de séparation des compartiments des pôles. Le montage en rotation du barreau 30 ne nécessite aucun axe spécial de guidage, ni de paliers d'extrémités dans les parois latérales opposées du boîtier 12. L'assemblage de chaque coussinet intermédiaire 120, 122 autour du barreau 30 s'effectue par encliquetage des extrémités libres d'un anneau semi- ouvert à fente axiale ou de deux demi-bagues 124, 125 de formes conjuguées.In FIGS. 10 and 11, the transverse bar 30 for supporting the movable contact arms 32 of the different poles is coupled to the lower links 56 of the mechanism 28 and is positioned by two pads 120, 122 coaxial or intermediate anti-wear bearings, separated transversely from each other by the width of the central pole. The pads 120, 122 made of plastic material bear on the housings of the casing 14 and of the socket 18 at the level of the internal partition walls of the pole compartments. The rotational mounting of the bar 30 does not require any special guide axis, nor end bearings in the opposite side walls of the housing 12. The assembly of each intermediate pad 120, 122 around the bar 30 is effected by snap-fastening of the free ends of a semi-open ring with axial slit or of two half-rings 124, 125 of conjugate shapes.

L'enfoncement des bras de contact 32 mobiles de différents pôles est tributaire des imperfections de moulage des pièces enmatériau plastique et des tolérances de fabrication des organes du mécanisme 28. Le réglage de l'enfoncement par pôle intervient au moyen d'une cale 126 (figures 1, 12 et 13) d'adjus- tement de la position relative du contact mobile 34 par rapport au contact fixe 36 associé. Chaque cale 126 est en matériau plastique et est insérée dans une rainure du barreau 30 de manière à modifier légèrement la position angulaire de la face d'appui du bras de contact 32. La mise en place de chaque cale 126 sur le barreau 30 s'opère après écartement manuel du bras de contact 32 correspondant à l'encontre de la force du ressort de compression 46. On peut utiliser des cales 126 de réglage présentant des épaisseurs différentes pour compenser au mieux les tolérances de fabrication.The driving in of the movable contact arms 32 of different poles is dependent on the imperfections in the molding of the plastic material parts and the manufacturing tolerances of the members of the mechanism 28. The setting of the driving in by pole takes place by means of a shim 126 ( FIGS. 1, 12 and 13) of adjusting the relative position of the movable contact 34 relative to the associated fixed contact 36. Each wedge 126 is made of plastic material and is inserted in a groove of the bar 30 so as to slightly modify the angular position of the bearing face of the contact arm 32. The positioning of each wedge 126 on the bar 30 s' operates after manual separation of the contact arm 32 corresponding against the force of the compression spring 46. Adjustment shims 126 having different thicknesses can be used to best compensate for manufacturing tolerances.

Le fonctionnement du mécanisme de commande 28 selon l'invention est illustré schématiquement sur les figures 4 à 7:

  • En position D de déclenchement du disjoncteur représentée aux figures 2 et 4, le crochet de déclenchement 64 libéré du verrou 78 a provoqué la brisure de la genouillère 52 sous l'action des ressorts 66, et se trouve en butée stable contre le pivot 70 du barreau 68. La patte 114 en équerre du levier de transmission 112 de chaque biellette supérieure 58 prend appui sur la surface de glissement 116 du berceau 68.
The operation of the control mechanism 28 according to the invention is illustrated diagrammatically in FIGS. 4 to 7:
  • In position D of tripping of the circuit breaker shown in FIGS. 2 and 4, the tripping hook 64 released from the latch 78 caused the toggle joint 52 to break under the action of the springs 66, and is in stable abutment against the pivot 70 of the bar 68. The tab 114 at right angles to the transmission lever 112 of each upper link 58 bears on the sliding surface 116 of the cradle 68.

Le réarmement du mécanisme 28 s'effectue par un déplacement manuel de la manette 26 dans le sens horaire depuis la position D jusqu'à une position R de réarmement voisine de la position O. Durant le pivotement du berceau 68 autour du pivot 70, le levier de transmission 112 de chaque biellette supérieure 58 de la genouillère 52 est entraîné vers le haut par réaction de la surface 116 du berceau 68 sur la patte 114 en équerre. Cette dernière se déplace sur la surface 116 selon un mouvement de glissement de faible amplitude dont les forces de réaction correspondantes n'engendrent pas de frottement important. Il en résulte un basculement autour de l'axe 74 du crochet de déclenchement 64 sollicité dans le sens horaire vers la position armée (fig. 5), dans laquelle le bec d'accrochage 76 s'accroche au verrou 78 en appui de la butée 82. La demi-lune 86 maintient le verrou 78 dans cette position, et la patte 114 de chaque biettette 58 reste en appui-stable sur la surface 116 du berceau 68. Dans la position R de la manette 26, la tringle auxiliaire de réarmement 72 solidaire du berceau 68 provoque le réarmement du dispositif accumulateur d'énergie associé au bloc déclencheur.The mechanism 28 is rearmed by manual movement of the lever 26 clockwise from position D to a reset position R close to position O. During the pivoting of the cradle 68 around the pivot 70, the transmission lever 112 of each upper link 58 of the toggle joint 52 is driven upwards by reaction of the surface 116 of the cradle 68 on the tab 114 at right angles. The latter moves on the surface 116 in a sliding movement of small amplitude whose corresponding reaction forces do not generate significant friction. This results in a tilting around the axis 74 of the trigger hook 64 urged in a clockwise direction towards the armed position (fig. 5), in which the hooking spout 76 hangs on the latch 78 in support of the stop 82. The half-moon 86 maintains the lock 78 in this position, and the tab 114 of each link 58 remains in stable support on the surface 116 of the cradle 68. In the position R of the lever 26, the rod rearming auxiliary 72 integral with the cradle 68 causes the rearming of the energy storage device associated with the trip unit.

Après le réarmement du mécanisme 28, la fermeture du disjoncteur intervient d'une manière classique par une rotation inverse de la manette 26 vers la position F opposée (fig. 7), sollicitant les axes 62, 54, 60 de la genouillère 52 sensiblement en position alignée. Le mouvement de pivotement dans le sens horaire de la patte 114 des biellettes supérieures 58 n'interfère pas avec la trajectoire en sens inverse de la saillie 118 du berceau 68 actionné vers la position F de la manette 26.After resetting the mechanism 28, the closing of the circuit breaker occurs in a conventional manner by a reverse rotation of the handle 26 towards the opposite position F (fig. 7), urging the axes 62, 54, 60 of the toggle joint 52 substantially aligned position. The clockwise pivoting movement of the tab 114 of the upper links 58 does not interfere with the trajectory in the opposite direction of the projection 118 of the cradle 68 actuated towards the position F of the lever 26.

En cas de soudure des contacts, l'ouverture manuelle du disjoncteur par actionnement de la manette 26 de la position F vers la position O est stoppée dans la position intermédiaire S (fig. 6) grâce à la venue en butée de la saillie 118 du berceau 68 contre la patte 114 en équerre des biellettes supérieures 58. Le crochet de déclenchement 64 reste en position armée par accrochage du bec 76 au verrou 78.In the event of soldering of the contacts, the manual opening of the circuit breaker by actuation of the lever 26 from the position F towards the position O is stopped in the intermediate position S (fig. 6) thanks to the abutment of the projection 118 of the cradle 68 against the tab 114 at right angles to the upper links 58. The trigger hook 64 remains in the armed position by hooking the spout 76 to the latch 78.

Claims (12)

1. A multi-pole electric circuit breaker in a moulded box, containing an operating mechanism (28) of the moving gear comprising a moving contact (34) per pole mounted on a contact arm (32), which mechanism (28) is composed of:
- a toggle joint (52) with lower (56) and upper (58) links cooperating with an automatic trip hook (64) and a manual control lever (26) in order to actuate the moving gear,
- a rocker (68) supporting the lever (26) and able to pivot between the two fixed limits, closing position (F) and opening position (0),
- a bar (30) in insulating material, connected mechanically to a lower link (56) in the toggle joint (52) to drive the alternate pivoting movement of the contacts arms (32) of all the poles to close or open the contacts of the circuit breaker,
- a mechanism (28) drive spring (66) anchored between the rocker (68) and the intermediate hinge pin (54) of the toggle joint links (56, 58),
- a latch (78) to engage the trip hook (64) in the reset position,
- and a component (86) to telease the latch (78) that is controlled by the tripping unit and ensures that the trip hook (64) is freed when a fault occurs, during which operation the control lever (26) is driven to an intermediate position (D), between open position (0) and closed position (F),

characterized in that the upper link (58) in the toggle joint (52) is hinged on the trip hook (64) and extended by a drive lever (112) cooperating with the rocker (68) to obtain the resetting of the trip hook (64) in its reset position engaged with the latch (78) when the control lever (26) moves from the intermediate position (D) towards the resetting position (R) near open position (O).
2. Multi-pole circuit breaker according to claim 1, characterized in that the free end of the drive lever (112) on the upper link (58) is designed as a drive lug (114) that bears on a sliding surface (116) of the rocker (68) between intermediate position (D) and open position (O) of the control lever (26).
3. Multi-pole circuit breaker according to claim 2, characterized in that the lug (114) of the drive lever (112) is bent at right angles to lie crosswise towards the outside of the gap provided between the mounting plates (48, 50) of the drive mechanism (28).
4. Multi-pole circuit breaker according to claim 2 or 3, characterized in that the rocker (68) sliding surface (116) is slightly curved.
5. Multi-pole circuit breaker according to one of claims 1 to 4, characterized in that the upper link (58) is designed in a V-shape and comprises a first lever (110) placed between that pivot pin (54) of the toggle joint (52) and the hinge pin (62) of the trip hook (64), and forms a predetermined angle with the second drive lever (114) that cooperates with the rocker (68).
6. Multi-pole circuit breaker according to one of claims 2 to 5, characterized in that the pivotable rocker (68) has a shoulder (118) designed to thrust against the link lug (114) in order to stop the control lever (26) in a position (S) and thereby block any attempt to open the circuit breaker manually if the contacts are joined, while the afore-said lug (114) is automatically withdrawn away from the shoulder (118) when the toggle (52) joint folds in and the contacts open normally.
7. Multi-pole circuit breaker according to claim 6, characterized by the fact that the shoulder (118) is disposed between the sliding surface (116) and the rocker (68) pin (70).
8. Multi-pole circuit breaker according to claim 1, characterized in that said component to release the latch (78) comprises a half moon (86) shaped element pivotally mounted on a pin (88) and cooperating with elastic means for moving the half moon element (86) towards the latch position of the latch (78), the half moon element (86) being in equilibrium on the pin (88) and maintained with respect to the latch (78) by said elastic means.
9. Multi-pole circuit breaker according to claim 8, characterized in that said elastic means is constituted by a torsion spring (104) having one end resting at least on one bosse (108) of said half moon element (86) and its other end (109) bearing on an abutment of the plate (48).
10. Multi-pole circuit breaker according to claim 8 or 9, characterized by the fact that the half moon element (86) is in plastic material and extends crosswise in the gap between the plates (48, 50) and comprises a bore (92) with a radial projection (90) to fit into a matching groove (94) of the pin (88) in aligned openings in the plates (48, 50).
11. Multi-pole circuit breaker according to any one of the preceding claims 1 to 10, characterized by the fact that said bar (30) common to all poles is rotatably guided by intermediate coaxial bushings in plastic which bear on the internal separating walls between the pole chambers, two successive bushings being crosswise separated by the intermediate pole wide.
12. Multi-pole circuit breaker according to any one of the claims 1 to 11, wherein each contact arm (32) is pressed against a bearing surface of the bar (30) by a compression spring (46), characterized in that the downward pressure applied on each contact arm (32) is adjusted by means of a spacer (126) of predetermined thickness inserted in a slot in the bar (30) in order to modify the angular position of the aforementioned bearing surface, the positioning of the spacer (126) taking place once the contact arm (32) has been pulled away by a force opposing that of the compression spring (46).
EP82400831A 1981-05-18 1982-05-05 Operating mechanism for a low-voltage multi-pole circuit breaker Expired EP0066486B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8110000 1981-05-18
FR8110000A FR2506066A1 (en) 1981-05-18 1981-05-18 MANEUVERING MECHANISM OF A LOW VOLTAGE MULTIPOLAR ELECTRIC CIRCUIT BREAKER

Publications (2)

Publication Number Publication Date
EP0066486A1 EP0066486A1 (en) 1982-12-08
EP0066486B1 true EP0066486B1 (en) 1985-04-10

Family

ID=9258664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400831A Expired EP0066486B1 (en) 1981-05-18 1982-05-05 Operating mechanism for a low-voltage multi-pole circuit breaker

Country Status (6)

Country Link
US (1) US4401872A (en)
EP (1) EP0066486B1 (en)
JP (1) JPS57194431A (en)
CA (1) CA1218399A (en)
DE (1) DE3262950D1 (en)
FR (1) FR2506066A1 (en)

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6037555A (en) 1999-01-05 2000-03-14 General Electric Company Rotary contact circuit breaker venting arrangement including current transformer
US6087913A (en) 1998-11-20 2000-07-11 General Electric Company Circuit breaker mechanism for a rotary contact system
US6114641A (en) 1998-05-29 2000-09-05 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6166344A (en) 1999-03-23 2000-12-26 General Electric Company Circuit breaker handle block
US6172584B1 (en) 1999-12-20 2001-01-09 General Electric Company Circuit breaker accessory reset system
US6175288B1 (en) 1999-08-27 2001-01-16 General Electric Company Supplemental trip unit for rotary circuit interrupters
US6184761B1 (en) 1999-12-20 2001-02-06 General Electric Company Circuit breaker rotary contact arrangement
US6188036B1 (en) 1999-08-03 2001-02-13 General Electric Company Bottom vented circuit breaker capable of top down assembly onto equipment
US6204743B1 (en) 2000-02-29 2001-03-20 General Electric Company Dual connector strap for a rotary contact circuit breaker
US6211757B1 (en) 2000-03-06 2001-04-03 General Electric Company Fast acting high force trip actuator
US6211758B1 (en) 2000-01-11 2001-04-03 General Electric Company Circuit breaker accessory gap control mechanism
US6215379B1 (en) 1999-12-23 2001-04-10 General Electric Company Shunt for indirectly heated bimetallic strip
US6218917B1 (en) 1999-07-02 2001-04-17 General Electric Company Method and arrangement for calibration of circuit breaker thermal trip unit
US6218919B1 (en) 2000-03-15 2001-04-17 General Electric Company Circuit breaker latch mechanism with decreased trip time
US6225881B1 (en) 1998-04-29 2001-05-01 General Electric Company Thermal magnetic circuit breaker
US6229413B1 (en) 1999-10-19 2001-05-08 General Electric Company Support of stationary conductors for a circuit breaker
US6232570B1 (en) 1999-09-16 2001-05-15 General Electric Company Arcing contact arrangement
US6232856B1 (en) 1999-11-02 2001-05-15 General Electric Company Magnetic shunt assembly
US6232859B1 (en) 2000-03-15 2001-05-15 General Electric Company Auxiliary switch mounting configuration for use in a molded case circuit breaker
US6239395B1 (en) 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
US6239398B1 (en) 2000-02-24 2001-05-29 General Electric Company Cassette assembly with rejection features
US6239677B1 (en) 2000-02-10 2001-05-29 General Electric Company Circuit breaker thermal magnetic trip unit
US6252365B1 (en) 1999-08-17 2001-06-26 General Electric Company Breaker/starter with auto-configurable trip unit
US6262642B1 (en) 1999-11-03 2001-07-17 General Electric Company Circuit breaker rotary contact arm arrangement
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
US6281461B1 (en) 1999-12-27 2001-08-28 General Electric Company Circuit breaker rotor assembly having arc prevention structure
US6281458B1 (en) 2000-02-24 2001-08-28 General Electric Company Circuit breaker auxiliary magnetic trip unit with pressure sensitive release
US6300586B1 (en) 1999-12-09 2001-10-09 General Electric Company Arc runner retaining feature
US6310307B1 (en) 1999-12-17 2001-10-30 General Electric Company Circuit breaker rotary contact arm arrangement
US6317018B1 (en) 1999-10-26 2001-11-13 General Electric Company Circuit breaker mechanism
US6326868B1 (en) 1997-07-02 2001-12-04 General Electric Company Rotary contact assembly for high ampere-rated circuit breaker
US6326869B1 (en) 1999-09-23 2001-12-04 General Electric Company Clapper armature system for a circuit breaker
US6340925B1 (en) 2000-03-01 2002-01-22 General Electric Company Circuit breaker mechanism tripping cam
US6346869B1 (en) 1999-12-28 2002-02-12 General Electric Company Rating plug for circuit breakers
US6346868B1 (en) 2000-03-01 2002-02-12 General Electric Company Circuit interrupter operating mechanism
US6362711B1 (en) 2000-11-10 2002-03-26 General Electric Company Circuit breaker cover with screw locating feature
US6366188B1 (en) 2000-03-15 2002-04-02 General Electric Company Accessory and recess identification system for circuit breakers
US6373357B1 (en) 2000-05-16 2002-04-16 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6373010B1 (en) 2000-03-17 2002-04-16 General Electric Company Adjustable energy storage mechanism for a circuit breaker motor operator
US6377144B1 (en) 1999-11-03 2002-04-23 General Electric Company Molded case circuit breaker base and mid-cover assembly
US6379196B1 (en) 2000-03-01 2002-04-30 General Electric Company Terminal connector for a circuit breaker
US6380829B1 (en) 2000-11-21 2002-04-30 General Electric Company Motor operator interlock and method for circuit breakers
US6388213B1 (en) 2000-03-17 2002-05-14 General Electric Company Locking device for molded case circuit breakers
US6396369B1 (en) 1999-08-27 2002-05-28 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6400245B1 (en) 2000-10-13 2002-06-04 General Electric Company Draw out interlock for circuit breakers
US6404314B1 (en) 2000-02-29 2002-06-11 General Electric Company Adjustable trip solenoid
US6429759B1 (en) 2000-02-14 2002-08-06 General Electric Company Split and angled contacts
US6429659B1 (en) 2000-03-09 2002-08-06 General Electric Company Connection tester for an electronic trip unit
US6429760B1 (en) 2000-10-19 2002-08-06 General Electric Company Cross bar for a conductor in a rotary breaker
US6448522B1 (en) 2001-01-30 2002-09-10 General Electric Company Compact high speed motor operator for a circuit breaker
US6448521B1 (en) 2000-03-01 2002-09-10 General Electric Company Blocking apparatus for circuit breaker contact structure
US6459349B1 (en) 2000-03-06 2002-10-01 General Electric Company Circuit breaker comprising a current transformer with a partial air gap
US6459059B1 (en) 2000-03-16 2002-10-01 General Electric Company Return spring for a circuit interrupter operating mechanism
US6469882B1 (en) 2001-10-31 2002-10-22 General Electric Company Current transformer initial condition correction
US6472620B2 (en) 2000-03-17 2002-10-29 Ge Power Controls France Sas Locking arrangement for circuit breaker draw-out mechanism
US6476337B2 (en) 2001-02-26 2002-11-05 General Electric Company Auxiliary switch actuation arrangement
US6476335B2 (en) 2000-03-17 2002-11-05 General Electric Company Draw-out mechanism for molded case circuit breakers
US6476698B1 (en) 2000-03-17 2002-11-05 General Electric Company Convertible locking arrangement on breakers
US6479774B1 (en) 2000-03-17 2002-11-12 General Electric Company High energy closing mechanism for circuit breakers
US6496347B1 (en) 2000-03-08 2002-12-17 General Electric Company System and method for optimization of a circuit breaker mechanism
US6531941B1 (en) 2000-10-19 2003-03-11 General Electric Company Clip for a conductor in a rotary breaker
US6559743B2 (en) 2000-03-17 2003-05-06 General Electric Company Stored energy system for breaker operating mechanism
US6586693B2 (en) 2000-03-17 2003-07-01 General Electric Company Self compensating latch arrangement
US6639168B1 (en) 2000-03-17 2003-10-28 General Electric Company Energy absorbing contact arm stop
US6678135B2 (en) 2001-09-12 2004-01-13 General Electric Company Module plug for an electronic trip unit
US6710988B1 (en) 1999-08-17 2004-03-23 General Electric Company Small-sized industrial rated electric motor starter switch unit
US6747535B2 (en) 2000-03-27 2004-06-08 General Electric Company Precision location system between actuator accessory and mechanism
US6804101B2 (en) 2001-11-06 2004-10-12 General Electric Company Digital rating plug for electronic trip unit in circuit breakers
US6806800B1 (en) 2000-10-19 2004-10-19 General Electric Company Assembly for mounting a motor operator on a circuit breaker

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE56136B1 (en) * 1983-12-19 1991-04-24 Westinghouse Electric Corp Circuit breaker with improved cross-bar and contact assembly
US4645891A (en) * 1985-07-18 1987-02-24 Westinghouse Electric Corp. Molded case circuit breaker with a movable electrical contact positioned by a spring loaded ball
US4645890A (en) * 1985-07-19 1987-02-24 Westinghouse Electric Corp. Molded case circuit breaker with a movable electrical contact positioned by a camming leaf spring
US4706689A (en) * 1985-10-30 1987-11-17 Daniel Man Implantable homing device
US6366438B1 (en) 2000-03-06 2002-04-02 General Electric Company Circuit interrupter rotary contact arm
US6421217B1 (en) 2000-03-16 2002-07-16 General Electric Company Circuit breaker accessory reset system
US6995640B2 (en) * 2000-05-16 2006-02-07 General Electric Company Pressure sensitive trip mechanism for circuit breakers
US6882258B2 (en) * 2001-02-27 2005-04-19 General Electric Company Mechanical bell alarm assembly for a circuit breaker
US6921873B2 (en) * 2003-08-01 2005-07-26 Eaton Corporation Circuit breaker trip unit employing a rotary plunger
US7709761B1 (en) 2007-03-21 2010-05-04 Cooper Technologies Company Electrical device cradle with multiple integral support regions
US7737377B1 (en) 2007-03-21 2010-06-15 Cooper Technologies Company Slip connection
US7638723B1 (en) * 2007-03-21 2009-12-29 Cooper Technologies Company Toggle flange
US7843290B2 (en) * 2007-08-10 2010-11-30 Ls Industrial Systems Co., Ltd. Molded case circuit breaker with contact on mechanism
US7728240B2 (en) * 2007-11-08 2010-06-01 Cooper Technologies Company Electrical control device
US11225157B1 (en) 2017-12-29 2022-01-18 Robert Michael Milanes EV home charging unit and method of use
CN108807096A (en) * 2018-07-11 2018-11-13 浙江诺科电气科技股份有限公司 The operating mechanism of miniature circuit breaker

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1786796A (en) * 1927-08-11 1930-12-30 Westinghouse Electric & Mfg Co Circuit breaker
US2795670A (en) * 1954-02-19 1957-06-11 Westinghouse Electric Corp Circuit breaker
US3134879A (en) * 1962-06-20 1964-05-26 Gen Electric Electric circuit breaker with lock-open latch
US3426301A (en) * 1966-12-20 1969-02-04 Texas Instruments Inc Interconnected multipole circuit breaker
US3462716A (en) * 1967-03-07 1969-08-19 Westinghouse Electric Corp Circuit breaker with improved trip structure
CH489887A (en) * 1968-04-13 1970-04-30 Bassani Spa Electric power switch
US3525959A (en) * 1968-12-05 1970-08-25 Westinghouse Electric Corp Circuit breaker with improved latch reset
FR2262859B1 (en) * 1974-03-01 1977-09-23 Merlin Gerin
FR2360171A1 (en) * 1976-07-30 1978-02-24 Unelec CIRCUIT BREAKER CONTROL MECHANISM
FR2361737A1 (en) * 1976-08-09 1978-03-10 Unelec CIRCUIT BREAKER WITH LOCKING DEVICE FOR THE CONTROL HANDLE IN THE EVENT OF WELDING OF THE CONTACTS
JPS5942935B2 (en) * 1978-07-05 1984-10-18 富士電機株式会社 circuit breaker

Cited By (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6326868B1 (en) 1997-07-02 2001-12-04 General Electric Company Rotary contact assembly for high ampere-rated circuit breaker
US6225881B1 (en) 1998-04-29 2001-05-01 General Electric Company Thermal magnetic circuit breaker
US6114641A (en) 1998-05-29 2000-09-05 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6259048B1 (en) 1998-05-29 2001-07-10 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
US6400543B2 (en) 1999-06-03 2002-06-04 General Electric Company Electronic trip unit with user-adjustable sensitivity to current spikes
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
US6175288B1 (en) 1999-08-27 2001-01-16 General Electric Company Supplemental trip unit for rotary circuit interrupters
US6396369B1 (en) 1999-08-27 2002-05-28 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
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
US6239395B1 (en) 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
US6229413B1 (en) 1999-10-19 2001-05-08 General Electric Company Support of stationary conductors for a circuit breaker
US6317018B1 (en) 1999-10-26 2001-11-13 General Electric Company Circuit breaker mechanism
US6232856B1 (en) 1999-11-02 2001-05-15 General Electric Company Magnetic shunt assembly
US6262642B1 (en) 1999-11-03 2001-07-17 General Electric Company Circuit breaker rotary contact arm arrangement
US6377144B1 (en) 1999-11-03 2002-04-23 General Electric Company Molded case circuit breaker base and mid-cover assembly
US6300586B1 (en) 1999-12-09 2001-10-09 General Electric Company Arc runner retaining feature
US6310307B1 (en) 1999-12-17 2001-10-30 General Electric Company Circuit breaker rotary contact arm arrangement
US6172584B1 (en) 1999-12-20 2001-01-09 General Electric Company Circuit breaker accessory reset system
US6184761B1 (en) 1999-12-20 2001-02-06 General Electric Company Circuit breaker rotary contact arrangement
US6215379B1 (en) 1999-12-23 2001-04-10 General Electric Company Shunt for indirectly heated bimetallic strip
US6281461B1 (en) 1999-12-27 2001-08-28 General Electric Company Circuit breaker rotor assembly having arc prevention structure
US6346869B1 (en) 1999-12-28 2002-02-12 General Electric Company Rating plug for circuit breakers
US6211758B1 (en) 2000-01-11 2001-04-03 General Electric Company Circuit breaker accessory gap control mechanism
US6239677B1 (en) 2000-02-10 2001-05-29 General Electric Company Circuit breaker thermal magnetic trip unit
US6429759B1 (en) 2000-02-14 2002-08-06 General Electric Company Split and angled contacts
US6281458B1 (en) 2000-02-24 2001-08-28 General Electric Company Circuit breaker auxiliary magnetic trip unit with pressure sensitive release
US6239398B1 (en) 2000-02-24 2001-05-29 General Electric Company Cassette assembly with rejection features
US6313425B1 (en) 2000-02-24 2001-11-06 General Electric Company Cassette assembly with rejection features
US6204743B1 (en) 2000-02-29 2001-03-20 General Electric Company Dual connector strap for a rotary contact circuit breaker
US6724286B2 (en) 2000-02-29 2004-04-20 General Electric Company Adjustable trip solenoid
US6404314B1 (en) 2000-02-29 2002-06-11 General Electric Company Adjustable trip solenoid
US6466117B2 (en) 2000-03-01 2002-10-15 General Electric Company Circuit interrupter operating mechanism
US6448521B1 (en) 2000-03-01 2002-09-10 General Electric Company Blocking apparatus for circuit breaker contact structure
US6346868B1 (en) 2000-03-01 2002-02-12 General Electric Company Circuit interrupter operating mechanism
US6340925B1 (en) 2000-03-01 2002-01-22 General Electric Company Circuit breaker mechanism tripping cam
US6379196B1 (en) 2000-03-01 2002-04-30 General Electric Company Terminal connector for a circuit breaker
US6590482B2 (en) 2000-03-01 2003-07-08 General Electric Company Circuit breaker mechanism tripping cam
US6388547B1 (en) 2000-03-01 2002-05-14 General Electric Company Circuit interrupter operating mechanism
US6459349B1 (en) 2000-03-06 2002-10-01 General Electric Company Circuit breaker comprising a current transformer with a partial air gap
US6211757B1 (en) 2000-03-06 2001-04-03 General Electric Company Fast acting high force trip actuator
US6496347B1 (en) 2000-03-08 2002-12-17 General Electric Company System and method for optimization of a circuit breaker mechanism
US6429659B1 (en) 2000-03-09 2002-08-06 General Electric Company Connection tester for an electronic trip unit
US6534991B2 (en) 2000-03-09 2003-03-18 General Electric Company Connection tester for an electronic trip unit
US6366188B1 (en) 2000-03-15 2002-04-02 General Electric Company Accessory and recess identification system for circuit breakers
US6218919B1 (en) 2000-03-15 2001-04-17 General Electric Company Circuit breaker latch mechanism with decreased trip time
US6232859B1 (en) 2000-03-15 2001-05-15 General Electric Company Auxiliary switch mounting configuration for use in a molded case circuit breaker
US6459059B1 (en) 2000-03-16 2002-10-01 General Electric Company Return spring for a circuit interrupter operating mechanism
US6586693B2 (en) 2000-03-17 2003-07-01 General Electric Company Self compensating latch arrangement
US6559743B2 (en) 2000-03-17 2003-05-06 General Electric Company Stored energy system for breaker operating mechanism
US6388213B1 (en) 2000-03-17 2002-05-14 General Electric Company Locking device for molded case circuit breakers
US6472620B2 (en) 2000-03-17 2002-10-29 Ge Power Controls France Sas Locking arrangement for circuit breaker draw-out mechanism
US6639168B1 (en) 2000-03-17 2003-10-28 General Electric Company Energy absorbing contact arm stop
US6476335B2 (en) 2000-03-17 2002-11-05 General Electric Company Draw-out mechanism for molded case circuit breakers
US6476698B1 (en) 2000-03-17 2002-11-05 General Electric Company Convertible locking arrangement on breakers
US6479774B1 (en) 2000-03-17 2002-11-12 General Electric Company High energy closing mechanism for circuit breakers
US6373010B1 (en) 2000-03-17 2002-04-16 General Electric Company Adjustable energy storage mechanism for a circuit breaker motor operator
US6747535B2 (en) 2000-03-27 2004-06-08 General Electric Company Precision location system between actuator accessory and mechanism
US6373357B1 (en) 2000-05-16 2002-04-16 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6400245B1 (en) 2000-10-13 2002-06-04 General Electric Company Draw out interlock for circuit breakers
US6429760B1 (en) 2000-10-19 2002-08-06 General Electric Company Cross bar for a conductor in a rotary breaker
US6531941B1 (en) 2000-10-19 2003-03-11 General Electric Company Clip for a conductor in a rotary breaker
US6806800B1 (en) 2000-10-19 2004-10-19 General Electric Company Assembly for mounting a motor operator on a circuit breaker
US6362711B1 (en) 2000-11-10 2002-03-26 General Electric Company Circuit breaker cover with screw locating feature
US6380829B1 (en) 2000-11-21 2002-04-30 General Electric Company Motor operator interlock and method for circuit breakers
US6448522B1 (en) 2001-01-30 2002-09-10 General Electric Company Compact high speed motor operator for a circuit breaker
US6476337B2 (en) 2001-02-26 2002-11-05 General Electric Company Auxiliary switch actuation arrangement
US6678135B2 (en) 2001-09-12 2004-01-13 General Electric Company Module plug for an electronic trip unit
US6469882B1 (en) 2001-10-31 2002-10-22 General Electric Company Current transformer initial condition correction
US6804101B2 (en) 2001-11-06 2004-10-12 General Electric Company Digital rating plug for electronic trip unit in circuit breakers

Also Published As

Publication number Publication date
FR2506066B1 (en) 1983-07-29
FR2506066A1 (en) 1982-11-19
DE3262950D1 (en) 1985-05-15
EP0066486A1 (en) 1982-12-08
JPS57194431A (en) 1982-11-30
US4401872A (en) 1983-08-30
CA1218399A (en) 1987-02-24
JPS6253900B2 (en) 1987-11-12

Similar Documents

Publication Publication Date Title
EP0066486B1 (en) Operating mechanism for a low-voltage multi-pole circuit breaker
EP0140761B1 (en) Operating mechanism for a low-voltage multi-pole circuit breaker
EP0224396B1 (en) Control mechanism for a low-tension electric circuit breaker
EP2460172B1 (en) Rotatable control system for electric circuit breaker apparatus
FR2631485A1 (en) MINIATURE CIRCUIT BREAKER CONTROL MECHANISM WITH CONTACT WELDING INDICATOR
FR2712116A1 (en) Current limiting contact system for circuit breaker.
EP0205361B1 (en) Hand-actuated snap-closing mechanism for a miniaturized circuit breaker
EP0570647A1 (en) Switch latch for a circuit breaker and circuit breakers incorporating it
EP0338930A1 (en) Circuit breakers or differential circuit breakers
EP2061058B1 (en) Device for controlling electrical switchgear and electrical switchgear including same
FR2495825A1 (en) SYNCHRONIZED MULTIPOLAR CIRCUIT BREAKER, CONSISTING OF MULTIPLE ASSEMBLIES AND INCLUDING A MUTUAL LINK ROD
FR2605454A1 (en) Control mechanism for a miniature electric circuit breaker with automatic reset
FR2796202A1 (en) CIRCUIT BREAKER MECHANISM
EP2717284B1 (en) Operating device of an electric protection apparatus and electric protection apparatus comprising same
FR2552930A1 (en) Switch operating mechanism for electric safety switch
EP0526356B1 (en) Device for indicating the tripping of a circuit breaker
FR3051593B1 (en) DEVICE FOR SIGNALING AN ELECTRICAL FAULT IN AN ELECTRICAL PROTECTION APPARATUS, AND ELECTRICAL PROTECTION APPARATUS COMPRISING SUCH A DEVICE
EP0032870B1 (en) Mechanism, mountable in a casing, for operating the displacement of a lever, and application of this mechanism as a circuit-breaker
EP0650178B1 (en) Interface adaptor for multipolar differential switch
EP0008990B1 (en) Low voltage multi-pole circuit breaker provided with a device for setting the bar
EP0526355B1 (en) Adjusting device for bimetal of a circuit breaker
EP0176402B1 (en) Switches with automatic circuit breaking, especially in differential switches and circuit breakers
EP0602024B1 (en) Operating mechanism for a multipolar fault-current protective switch with a rotary crossbar
FR2553930A1 (en) Reversible mechanism for controlling a multipole limiter circuit breaker
FR2892849A1 (en) Fixed and movable contacts locking mechanism for e.g. circuit breaker, has movable contact rigidly fixed to contact holder, and compression spring placed between flange and fixed contact

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE GB IT NL SE

17P Request for examination filed

Effective date: 19830707

ITF It: translation for a ep patent filed

Owner name: INTERPATENT ST.TECN. BREV.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE GB IT LI NL SE

REF Corresponds to:

Ref document number: 3262950

Country of ref document: DE

Date of ref document: 19850515

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890523

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890531

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900531

Ref country code: CH

Effective date: 19900531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19901201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910521

Year of fee payment: 10

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910628

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19920531

BERE Be: lapsed

Owner name: MERLIN GERIN

Effective date: 19920531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930423

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930524

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940505

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940505

EUG Se: european patent has lapsed

Ref document number: 82400831.2

Effective date: 19921204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950201