EP0685867B1 - Differential-Auslösevorrichtung - Google Patents

Differential-Auslösevorrichtung Download PDF

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Publication number
EP0685867B1
EP0685867B1 EP19950401233 EP95401233A EP0685867B1 EP 0685867 B1 EP0685867 B1 EP 0685867B1 EP 19950401233 EP19950401233 EP 19950401233 EP 95401233 A EP95401233 A EP 95401233A EP 0685867 B1 EP0685867 B1 EP 0685867B1
Authority
EP
European Patent Office
Prior art keywords
tripping device
lever
differential
tripping
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19950401233
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English (en)
French (fr)
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EP0685867A1 (de
Inventor
Frédéric Comte
Christophe Jallon
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.)
Legrand SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
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Publication of EP0685867A1 publication Critical patent/EP0685867A1/de
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Publication of EP0685867B1 publication Critical patent/EP0685867B1/de
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly

Definitions

  • the present invention relates generally differential release devices associated with a main trip device such as a switch or circuit breaker for tripping thereof in the event that either of the conductors supplying a electrical appliance becomes the object of a fault insulation. See for example EP-A-0 461 027.
  • a fault detector capable of delivering a current differential in response to a fault, in practice a wound toroid consequently, a sensitive relay served by the detector fault, and a trigger mechanism which, under the control of the sensitive relay, is able to intervene on the main triggering device, and more specifically, on the triggering device that usually presents this one.
  • the assembly constitutes a switch or circuit breaker differential.
  • the present invention generally has for subject of the provisions likely to facilitate the assembly of the differential trip device, for the benefit of costs.
  • a differential release device which, according to a first of these provisions, is characterized in that the sensitive relay and trigger mechanism are worn by the cover, while the fault detector is carried by the main trigger device housing.
  • the resistance that this circuit usually comprises test is also carried by the device housing main trigger.
  • all the components of the differential release according to the invention are preferably carried by the cover thereof.
  • the trigger mechanism comprising, in the form of parts separate, multiple springs, each of these springs preferably belongs to a subset by through which it is attached to the hood.
  • the device for differential trigger 10 is associated to a main trip device 11, such as a switch or circuit breaker.
  • the assembly constitutes a switch or a circuit breaker differential.
  • the main tripping device 11 is a circuit breaker monopolar, phase and neutral.
  • This main triggering device 11 does not fall under not by itself of the present invention it will not described in full detail here.
  • a housing 12 which is of modular type in the form of embodiment shown, and which presents, laterally, on each side, a 13P phase connection terminal and a connection terminal 13N neutral, and, on the other hand, a joystick maneuver 14, which, in the embodiment shown, is rotatably mounted between a trigger position, shown in broken lines in Figure 9, and a locking position, shown in solid lines on Figures 2 and 13 and broken lines in Figure 12.
  • the operating lever 14 of the main trigger 11 door parallel to its axis of rotation, a lug 15, which protrudes out of the housing 12 to the favor of a buttonhole 16 thereof curved in an arc of circle.
  • the device for differential trigger 10 comprises, overall, under a cover 20 by which it is attached to the housing 12 of the main trigger device 11, a fault detector 21, which is capable of delivering a current differential in response to a fault, a sensitive relay 22, which is served by the fault detector 21, and a mechanism for trigger 24, which, under the control of sensitive relay 22, is able to intervene on the triggering device main 11.
  • the cover 20 has the same outline as the case 12, and, like this, it comes in modular form.
  • the cover 20 forms, at least locally, by its side wall 26, a canopy 27 by which it covers the corresponding portion of the edge of the housing 12 of the main triggering device 11.
  • this awning 27 extends only over the part front of the housing 12, and it has, in its portion middle, a notch 28, for its engagement on the joystick operation 14.
  • the cover 20 has, in addition, on its side wall 26, from one side to the less of this, a clearance 29, level with the terminals 13P, 13N connection of the main trip device 11.
  • these means of nesting consist by bosses 35 projecting laterally, from place to place, on a rim 36 of the housing 12 which is capped at its base the side wall 26 of the cover 20 when the latter is attached to the housing 12.
  • the fault detector 21 is consisting of a torus on which are wound, a part, a primary, formed of one or more windings 37P of phase and one or more neutral windings 37N, and, on the other hand, a secondary whose windings 38 are visible in Figure 13.
  • the ends of the primary windings 37P, 37N are connected, for example by welding, to the conductors electric 18P, 18N corresponding, on the section of these parallel to the main wall 25 of the cover 20.
  • the ends of the secondary windings 38 are connected to the terminals of sensitive relay 22, as well that it is represented in figure 13.
  • the torus constituting the fault detector 21 can be duly calibrated on the housing 12, for example by snap-fastening.
  • this resistor 41 is carried by the housing 12 of the main trigger device 11.
  • the legs 42 of this resistance 41 are simply forcibly engaged in forked studs 43 provided for this purpose projecting from the housing 12.
  • One of these legs 42 is connected to the conductor 18P electric phase located downstream in the circuit corresponding.
  • the other is free.
  • all components of the release device differential 10 according to the invention are carried by the cover 20.
  • the relay sensitive 22 is located substantially at the height of the operating handle 14, under the front portion of the wall side 26 of cover 20 extending by a canopy 27.
  • a metal shield 46 is inserted between it and this main wall 25.
  • the mechanism trigger 24 extends between cover 20 and a plate 48 integral with it, and, more precisely, between the wall main 25 of this cover 20 and a plate 48 parallel to this main wall 25.
  • this turntable 48 is attached to posts 50 projecting therefrom effect on the main wall 25 of the cover 20.
  • the mechanism trigger 24 generally comprises a lever trigger 51, which, rotatably mounted on an axis 52 integral of the cover 20, has an arm 53 on which the relay can act sensitive 22, its free end being arranged directly above the striker 47 thereof, a return spring 54, which permanently requests this trigger lever 51 in direction of the sensitive relay 22, an actuating lever 55, which, rotatably mounted on an axis 56 integral with the cover 20, and distinct from the previous one, has an arm 58 by which it can act on the main triggering device 11, disengageable hooking means 59, by which the lever trigger 51 is able to hold in position as shown in figure 12, the lever actuator 55, and an opening spring 60, which biases permanently this actuating lever 55 towards a release position, figure 9, angularly separated from its previous engagement position.
  • the axes 52 and 56 are parallel to each other, and parallel to the axis of rotation of the operating handle 14.
  • the disengageable attachment means 59 comprise, on the trigger lever 51, at the end of an arm 61 thereof, a hook 62, and, in correspondence, on the lever actuator 55, at the end of an arm 63 thereof, a hook 64, oriented in the opposite direction to the previous hook 62.
  • the hook 62 of the release lever 51 is turned to the side opposite the operating lever 14, and the hook 64 of the lever 55 is turned towards this joystick operation 14.
  • the spring return 54 of the release lever 51 is a spring of torsion, which, by its middle part of torsion 65, is engaged on a hub 66 of this trigger lever 51 having at a lug 67 protrudes for its retention, so that, during assembly, and as shown in figure 8, it belongs, with this trip lever 51, to the same sub-assembly 68.
  • the middle torsion part 65 of the spring 54 is taken between the arm 53 of the lever trigger 51 and the lug 67 of the hub 66 thereof.
  • One of the branches 69 of the return spring 54 is in support on a lug 70 provided for this purpose projecting from the wall main 25 of cover 20, while its other branch 72 bears on a shoulder 73 of the trigger lever 51, in being in practice engaged behind a lug 74 provided for projecting on this shoulder 73.
  • the arm 53 trigger lever 51 on which this relay can act sensitive 22 is subjected to a damping spring 75 which is itself subject to the actuating lever 55.
  • this damping spring 75 is a torsion spring which, by its central torsion part 76, is engaged on a hub 77 of the trigger lever 51 directed axially in the opposite direction to the previous hub 66, FIG. 3, and, in addition to the arm 53 on which the sensitive relay 22 can act and on which one of the branches 78 of the spring bears damping 75, the trigger lever 51 includes a other arm 79, which buttresses the other of the branches 80 of this damping spring 75.
  • the hub 77 of the lever trigger 51 has a protruding lug 81, visible on Figures 9, 11 and 12, for spring retention damping 75, so that, when mounted, this spring damping 75 belongs, with the trigger lever 51, to the same sub-assembly as this trigger lever 51, in this case the subset 68.
  • the branch 80 of the damping spring 75 extends beyond the arm 79 of the trip lever 51.
  • the spring opening 60 is a torsion spring, which by its part torsional center 82, is engaged on a hub 83 of the lever actuator 55 projecting from a lug 84 for its retained, so that, during assembly, and as shown in Figures 4 and 5, it belongs, with this lever actuator 55, to the same sub-assembly 85.
  • the branch 86 of the opening spring 60 is in support against a stud 87, which, integral with the cover 20, comes in practical in one piece from the main wall 25 of this one.
  • this pad 87 is elongated, and, according to the invention, it has a chamfer 88 at its free end, FIG. 7, for placing under automatic constraint of the opening spring 60 during assembly.
  • the other of the branches 89 of the opening spring 60 is resting against an axial shoulder 90 of the actuating lever 55, and, on the opposite side thereof, it runs, at least locally, another axial shoulder 91 of this lever actuation 55.
  • the axial shoulder 90 is formed by a lug 92 projecting from the arm 63, and the axial shoulder 91 belongs to a wall 93, which is also protruding on this arm 63, and on the edge of which carries the branch 86 of the opening spring 60 before mounting the sub-assembly 85 on the cover 20.
  • a test circuit 40 being provided, as indicated previously, the branch 89 of the opening spring 60 comprises an extension 94, which, by two bends in opposite directions, is offset from its current part.
  • the actuating lever 55 For its action on the triggering device main 11, the actuating lever 55 carries, at the end of its arm 58, a finger 95, which, elongated axially, is engaged in the housing 12, in favor of the buttonhole 19 thereof.
  • the arm 58 On the side opposite this finger 95, the arm 58 carries a lug 126 on the path of which the branch 80 of the damping spring 75.
  • the actuating lever 55 has a third arm 96, and it carries, at the end of it, a pallet 97, forming a sight glass, which, in the position of trigger, is plumb with a window 98 of the cover 20, and, more precisely, from the front portion of the side wall 26 of it.
  • the actuating lever 55 is in practice made of synthetic material colored, for example in red synthetic material.
  • the window 98 of the cover 20 is closed by a porthole 99.
  • a reset lever 100 which, under the biasing of elastic polarization means 105, is able to be carried by a lug 103 on a fixed track 104, at least for the trigger configuration, and which, via a nose 101, is then interposed on the path of a lug 15 integral with the operating lever 14 of the triggering device main 11.
  • the actuating lever 55 has, projecting from a fourth arm 106, a pin 107, which extends axially projecting from the same side as finger 95.
  • the means polarization elastic 105 of this reset lever 100 are all in one piece with this one.
  • the fixed track 104 on which the lug 103 bears of the reset lever 100 is formed by the edge of the platinum 48.
  • this test circuit 40 includes a connection tab 109 which, integral with the cover 20, carries freely on a connection terminal 110 secured to the housing 12, figure 10.
  • the self-cutting tab 108 and the connection tab 109 both belong to a metallic strip 111, of which they form in one piece lateral extensions, and which is attached to the cover 20, and, more specifically, on posts 112 provided for this protruding effect on the main wall 25 of this cover 20.
  • the terminal connection 110 is formed by the electrical conductor 18N of neutral located upstream in the corresponding circuit, and, more precisely, by the end of the 37N winding secured to the section of this parallel neutral 18N electrical conductor to the main wall 25 of the cover 20.
  • connection tab 109 is bent.
  • test circuit 40 is under the control of a test button 113 available to the user.
  • this test button 113 acts on the front portion of the side wall 26 of the cover 20, at the favor of a notch 114 thereof.
  • a metal strip 115 comprising two branches, namely, a long branch 116, intended to come cooperate with the tab 42 free from the resistor 41, and a branch 117, short, intended to cooperate with branch 86 of opening spring 60.
  • test button 113 is also subjected to elastic polarization means 118, which urge it in permanently in a stop direction for which the branches 116, 117 of the metal strip 115 are in the air.
  • the trigger mechanism 24 comprising, in the form of separate parts, several springs, in this case the return spring 54 of the trigger 51, opening spring 60, and spring damping 75, each of these springs 54, 60, 75 belongs to a subset, 68 or 85, through from which it is advantageously likely to be reported on the cover 20.
  • the sub-assembly 68 is put in place before the sub-assembly 85, or after it.
  • the subset 85 carries preferably from the start the reset lever 100, and, during its installation, by engagement on axis 56 corresponding cover 20, branch 86 of the opening spring 60 comes to bear on the chamfer 88 of the stud 87 of the cover 20, in so that, then following the slope of this chamfer 88, such that shown schematically by an arrow F1 in FIG. 7, it puts progressively stressing the opening spring 60, until its final engagement on plot 87.
  • the stressing of the opening spring 60 is advantageously done easily and systematically.
  • the actuation lever 55 comes to carry by its arm 96 on a stud 120 which, integral with the cover 20, in coming in practice in one piece from the main wall 25 of it, sets its trigger position, such that shown in figure 9.
  • this stud 120 can also be chamfered.
  • connection terminal 110 The connecting tab 109 of the metal strip 111 then comes to carry itself on the connection terminal 110 corresponding.
  • the operating lever 14 comes wear on the nose 101 of the reset lever 100, such as shown in Figure 11, and, via this lever reset 100, it rotates the lever 55 around axis 56, along arrow F3 of Figure 11, however that, by its lug 103, the lever reset 100 follows the fixed track 104.
  • the opening spring 60 is located jointly gradually under duress, however that by its extension 94, its branch 89 comes to bear elastically on the self-cutting tab 108.
  • the actuation lever 55 is then the subject of a slight retrograde rotational movement at the end of which it found retained in the latching position by the trigger 51, by hooking its hook 64 on the hook 62 thereof, while the branch 89 of the spring 60 remains in contact with the self-cutting tab 108.
  • this lock which involves closing the contacts of the device main trigger 11, only intervenes after arming of the trigger mechanism 24, which, therefore, can act immediately in the event of a fault.
  • the striker 47 of the sensitive relay 22 acts on the arm 53 of the trigger 51, and, by rotation about its axis 52, according to arrow F4 in FIG. 12, this causes the rupture of the disengageable attachment means 59, which frees the actuating lever 55.
  • the damping spring 75 advantageously saves on the release lever 51 the shock due to the action of the actuating lever 55.
  • the rearming of the sensitive relay 22 is made by the actuating lever 55, and not by the joystick 14.
  • this sensitive relay 22 is never open, which is advantageously favorable to the maintenance of its magnetization.
  • the operating lever 14 can be tilted from its latching position to its trigger, without triggering this trigger mechanism 24.
  • the joystick maneuver 14 simply elastically clears the lever reset 100, which then returns to its original position under the use of its elastic polarization means 105, without resulting in any solicitation on the actuating lever 55, and therefore on the hooking means disengageable 59 by which it is retained in position of engagement by the trigger lever 51.
  • the triggering device differential 10 according to the invention then advantageously remains armed.
  • the coverslip metallic 115 closes the test circuit 40.
  • this imbalance causes, following the previous process, the opening of the trigger 24.
  • the tongue constituting the elastic means polarization 105 ′ of the reset lever 100 is straight, and it extends between two fixed stops 125, 126, one before, the other rear, from the cover 20.
  • this tab bears on the front stop 125, in so that, as before, the reset lever 100 carries itself, by its lug 103, on the fixed track 104.
  • the reset lever 100 is therefore tilted, its lug 103 no longer relates to the fixed track 104, and its nose 101 is sufficiently erased, i.e. sufficiently discarded of the operating lever 14, so that it is no longer in able to interfere with the lug 15 thereof during its tilting.
  • the opening and closing of the main trigger 11 by the joystick 14 can advantageously be done without noise or sensation particular for the operator, while in the form of previous embodiment, the elastic erasure of the rearmament 100 being on the contrary likely to generate a such noise and such a special feeling.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (25)

  1. Differentialauslösevorrichtung, die unter einer Kappe (20), mit der sie an das Gehäuse (12) einer Hauptauslösevorrichtung (11) angesetzt ist, einen Fehlererfasser (21), der als Reaktion auf einen Fehler einen Differentialstrom liefern kann, ein von dem Fehlererfasser (21) bedientes empfindliches Relais (22) und einen durch das empfindliche Relais (22) gesteuerten Auslösemechanismus (24) aufweist, der auf die Hauptauslösevorrichtung (11) einwirken kann, dadurch gekennzeichnet, daß das empfindliche Relais (22) und der Auslösemechanismus (24) von der Kappe (20) getragen werden, während der Fehlererfasser (21) vom Gehäuse (12) der Hauptauslösevorrichtung (11) getragen wird.
  2. Differentialauslösevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß, wenn ein Testkreis (40) mit einem Widerstand (41) vorgesehen ist, dieser Widerstand (41) von dem Gehäuse (12) der Hauptauslösevorrichtung (11) getragen wird.
  3. Differentialauslösevorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß mit Ausnahme des Fehlererfassers (21) und des Widerstands (41) alle ihre Bestandteile von der Kappe (20) getragen werden.
  4. Differentialauslösevorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß, wenn der Auslösemechanismus (24) in Form von getrennten Teilen mehrere Federn (54, 60, 75) aufweist, jede dieser Federn (54, 60, 75) zu einer Untereinheit (68, 85) gehört, über welche sie an der Kappe (20) angebracht ist.
  5. Differentialauslösevorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Auslösemechanismus (24) einen Auslösehebel (51) aufweist, der auf einer mit der Kappe (20) fest verbundenen Achse (52) drehbar montiert ist und einen Arm (53) aufweist, auf den das empfindliche Relais (22) einwirken kann, sowie eine Rückholfeder (54), die den Auslösehebel (51) ständig in Richtung des empfindlichen Relais (22) beaufschlagt, einen Betätigungshebel (55), der auf einer mit der Kappe (20) fest verbundenen Achse drehbar montiert ist, von dem vorhergehenden getrennt ist und einen Arm (58) aufweist, über den er auf die Hauptauslösevorrichtung (11) einwirken kann, sowie auskuppelbare Einhakmittel (59), über die der Auslösehebel (51) den Betätigungshebel (55) in eingerückter Stellung zurückhalten kann, und eine Öffnungsfeder (60), die den Betätigungshebel (55) ständig in Richtung einer Auslösestellung beaufschlagt, die winkelmäßig von seiner eingerückten Stellung entfernt ist.
  6. Differentialauslösevorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Rückholfeder (54) des Auslösehebels (51) eine Torsionsfeder ist, die mit ihrem Torsionsmittelteil (65) auf eine Nabe (66) des Auslösehebels (51) aufgesteckt ist, die vorstehend eine Nase (67) für ihre Zurückhaltung aufweist, so daß sie bei der Montage mit diesem Auslösehebel (51) zu einer gemeinsamen Untereinheit (68) gehört.
  7. Differentialauslösevorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Öffnungsfeder (60) eine Torsionsfeder ist, die mit ihrem Torsionsmittelteil (82) auf eine Nabe (83) des Betätigungshebels (55) aufgesteckt ist, die hervorstehend eine Nase (84) für ihre Zurückhaltung aufweist, so daß sie bei der Montage mit diesem Betätigungshebel (55) zu einer gemeinsamen Untereinheit (85) gehört.
  8. Differentialauslösevorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß, wenn einer der Schenkel (86) der Öffnungsfeder (60) an einem mit der Kappe (20) fest verbundenen Vorsprung (87) in Anlage ist, dieser Vorsprung (87) an seinem freien Ende eine Abschrägung (88) aufweist, um diese Öffnungsfeder (60) bei der Montage automatisch unter Spannung zu setzen.
  9. Differentialauslösevorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der andere der Schenkel (89) der Öffnungsfeder an einer axialen Schulter (90) des Betätigungshebels (55) in Anlage ist und auf der dieser entgegengesetzten Seite mindestens örtlich an einer anderen axialen Schulter (91) dieses Betätigungshebels (55) entlang erstreckt.
  10. Differentialauslösevorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß, wenn ein Testkreis (40) vorgesehen ist, der andere Schenkel (89) der Öffnungsfeder (60) eine Verlängerung (94) aufweist, in deren Weg eine zu diesem Testkreis (40) gehörende Selbstunterbrechungszunge (108) angeordnet ist.
  11. Differentialauslösevorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Arm (53) des Auslösehebels (51) auf den das empfindliche Relais (22) einwirken kann, auf seiner diesem empfindlichen Relais (22) entgegengesetzten Seite einer Dämpfungsfeder (75) ausgesetzt ist, die ihrerseits dem Betätigungshebel (55) ausgesetzt ist.
  12. Differentialauslösevorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die Dämpfungsfeder (75) eine Torsionsfeder ist, die mit ihrem Torsionsmittelteil (76) auf eine Nabe (77) des Auslösehebels (51) aufgesteckt ist, die vorstehend eine Nase (81) für ihre Zurückhaltung aufweist, so daß diese Dämpfungsfeder (75) bei der Montage mit dem Auslösehebel (51) zu einer gemeinsamen Untereinheit (68) gehört, und der Auslösehebel (51), abgesehen von dem Arm (53), auf den das empfindliche Relais (22) einwirken kann und auf dem einer der Schenkel (78) der Dämpfungsfeder (75) aufliegt, einen weiteren Arm (79) besitzt, der sich am anderen Schenkel (80) der Dämpfungsfeder (75) abstützt.
  13. Differentialauslösevorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß auf dem Betätigungshebel (55) drehbar ein Rückstellhebel (100) drehbar montiert ist, der unter der Beaufschlagung durch elastische Polarisierungsmittel (105, 105') mit einem Vorsprung (103) auf einer feststehenden Bahn (104) aufliegen kann, und zwar wenigstens in der Auslösekonfiguration, und der mit einer Nase (101) dabei im Weg eines Vorsprungs (15) angeordnet ist, der mit dem Bedienungshebel (14) der Hauptauslösevorrichtung (11) fest verbunden ist.
  14. Differentialauslösevorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß die elastischen Polarisierungsmittel (105) des Rückstellhebels (100) sich an dem Betätigungshebel (55) abstützen.
  15. Differentialauslösevorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß die elastischen Polarisierungsmittel (105') des Rückstellhebels (100) sich zwischen zwei feststehenden Anschlägen (125, 126) erstrecken.
  16. Differentialauslösevorrichtung nach einem der Ansprüche 13 bis 15, dadurch gekennzeichnet, daß die elastischen Polarisierungsmittel (105, 105') des Rückstellhebels (100) mit diesem einstückig ausgeführt sind.
  17. Differentialauslösevorrichtung nach einem der Ansprüche 13 bis 16, dadurch gekennzeichnet, daß, wenn sich der Auslösemechanismus (24) zwischen der Kappe (20) und einer mit ihr fest verbundenen Platte (48) erstreckt, die feststehende Bahn (104) von der Kante dieser Platte (48) gebildet ist.
  18. Differentialauslösevorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Betätigungshebel (55) einen Flügel (97) trägt, der in der Auslösestellung sich senkrecht unter einem Fenster (98) der Kappe (20) befindet.
  19. Differentialauslösevorrichtung nach Anspruch 18, dadurch gekennzeichnet, daß der Betätigungshebel (55) einstückig mit dem an ihm vorgesehenen Flügel (97) aus gefärbtem Kunststoff besteht.
  20. Differentialauslösevorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Betätigungshebel (55) am Ende eines Arms (58) einen Finger (95) trägt, der für seine Einwirkung auf die Hauptauslösevorrichtung (11) über ein zu diesem Zweck in dessen Gehäuse (12) vorgesehenes Langloch (19) in dieses Gehäuse (12) eingesteckt ist.
  21. Differentialauslösevorrichtung nach einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, daß, wenn ein Testkreis (40) vorgesehen ist, dieser Testkreis (40) eine mit der Kappe (20) fest verbundene Anschlußzunge (109) aufweist, die frei auf einer Anschlußklemme (110)aufliegt, die mit dem Gehäuse (12) der Hauptauslösevorrichtung (11) fest verbunden ist.
  22. Differentialauslösevorrichtung nach den Ansprüche 10 und 21 zusammen, dadurch gekennzeichnet, daß die Anschlußzunge (109) und die Selbstunterbrechungszunge (108) beide Teil einer an der Kappe (20) angebrachten Metallamelle (111) sind.
  23. Differentialauslösevorrichtung nach einem der Ansprüche 1 bis 22, dadurch gekennzeichnet, daß zwischen der Kappe (20) und dem Gehäuse (12) der Hauptauslösevorrichtung (11) mindestens örtlich Einsteckmittel (35) für eine Vormontage der Einheit vorgesehen sind.
  24. Differentialauslösevorrichtung nach einem der Ansprüche 1 bis 23, dadurch gekennzeichnet, daß die Kappe (20) mindestens örtlich ein Vordach (27) bildet, mit dem sie den entsprechenden Abschnitt der Kante des Gehäuses (12) der Hauptauslösevorrichtung (11) abdeckt.
  25. Differentialauslösevorrichtung nach einem der Ansprüche 1 bis 24, dadurch gekennzeichnet, daß die Kappe (20) mindestens auf einer Seite eine Ausnehmung (29) besitzt, die mit den Anschlußklemmen (13P, 13N) der Hauptauslösevorrichtung (11) auf einer Höhe liegt.
EP19950401233 1994-05-31 1995-05-29 Differential-Auslösevorrichtung Expired - Lifetime EP0685867B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406585A FR2720548B1 (fr) 1994-05-31 1994-05-31 Dispositif de déclenchement différentiel.
FR9406585 1994-05-31

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EP0685867A1 EP0685867A1 (de) 1995-12-06
EP0685867B1 true EP0685867B1 (de) 1999-11-17

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EP (1) EP0685867B1 (de)
DE (1) DE69513329T2 (de)
ES (1) ES2138162T3 (de)
FR (1) FR2720548B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777110B1 (fr) * 1998-04-03 2000-06-23 Legrand Sa Disjoncteur differentiel multipolaire
DE69836025T2 (de) * 1998-05-29 2007-05-10 Hager Electro S.A. Kupplungsvorrichtung zwischen zwei modularen elektrischen element
DE10220622B4 (de) * 2002-05-08 2004-09-09 Siemens Ag Fehlerstrom-Schutzschalter
DE102005016155A1 (de) * 2005-04-07 2006-10-12 Condor-Werke Gebr. Frede Gmbh & Co. Kg Fehlerstrom-Schutzschalter
CN104134589B (zh) * 2014-07-17 2016-01-20 正泰集团股份有限公司 一种带有剩余电流脱扣装置的低压断路器
FR3121271B1 (fr) * 2021-03-26 2023-03-31 Schneider Electric Ind Sas Dispositif de protection électrique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667263A (en) * 1985-04-22 1987-05-19 General Electric Company Ground fault module for ground fault circuit breaker
AT384906B (de) * 1985-12-02 1988-01-25 Felten & Guilleaume Ag Oester Fehlerstrom- und leitungsschutzschalter
FR2663153B1 (fr) * 1990-06-07 1992-09-11 Legrand Sa Dispositif de declenchement differentiel.
FR2687838B1 (fr) * 1992-02-21 1994-04-08 Merlin Gerin Disjoncteur differentiel unipolaire et neutre et a circuit test.

Also Published As

Publication number Publication date
FR2720548B1 (fr) 1996-08-30
EP0685867A1 (de) 1995-12-06
DE69513329T2 (de) 2000-03-23
DE69513329D1 (de) 1999-12-23
ES2138162T3 (es) 2000-01-01
FR2720548A1 (fr) 1995-12-01

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