EP0199612B1 - Multiphase interrupting device with remote control - Google Patents

Multiphase interrupting device with remote control Download PDF

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Publication number
EP0199612B1
EP0199612B1 EP86400544A EP86400544A EP0199612B1 EP 0199612 B1 EP0199612 B1 EP 0199612B1 EP 86400544 A EP86400544 A EP 86400544A EP 86400544 A EP86400544 A EP 86400544A EP 0199612 B1 EP0199612 B1 EP 0199612B1
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EP
European Patent Office
Prior art keywords
input
circuit
input terminal
control
remote control
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
EP86400544A
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German (de)
French (fr)
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EP0199612A1 (en
Inventor
Bernard Pin
André Delbosse
Ivan Dubreucq
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
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Merlin Gerin SA
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Publication date
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Priority to AT86400544T priority Critical patent/ATE44632T1/en
Publication of EP0199612A1 publication Critical patent/EP0199612A1/en
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Publication of EP0199612B1 publication Critical patent/EP0199612B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair

Definitions

  • first trigger mechanism and the second remote control mechanism are independent of each other, but they both act on the same movable main contact.
  • the mechanical connection between the second remote control mechanism and the movable contact is arranged so as not to hinder an action of the first trigger mechanism.
  • the first trip mechanism must be reset by actuation of the first manual member to allow a closing remote control.
  • the second manual member coupled to the second mechanism replaces the remote control for manual opening or closing of the device.
  • the remote control unit is housed in a molded insulating housing which includes remote control wire connection terminals for actuating the electromagnet. This remote control of the breaking device generally lends itself to a mode of operation as a remote control switch by means of an appropriate control signal applied to the connection terminals.
  • the object of the invention is to increase the possibilities of using such a device by adapting the remote control unit to various control signals allowing multiple operation.
  • the first command corresponds to a remote control operating mode.
  • the selector allows the state of the position detector of the movable main contact to be taken into account
  • the second command is assimilated to an operating mode in contactor.
  • the selector neutralizes the position detector signal
  • the second input terminal corresponds to an impulse input decoupled from the first command, so as to authorize a command of the pilot switch type.
  • control can be carried out via the auxiliary contact block of the device without using additional components, in particular diode devices or decoupling relays.
  • the first input terminal TL and the second input terminal CT are distinct from each other, and are accessible simultaneously, allowing coexistence between the first pulse command and the second mixed command depending on the state of the selector. adjustment.
  • a priority code exists between these two commands, as well as a function to refresh the states of the electronic circuit in the event of a power supply interruption.
  • French patent application No. 2,536,904 has already proposed an electronic circuit for controlling a multifunction apparatus fitted with an electromagnet mechanism.
  • the position sensor of the device's contacts always remains on, and the adjustment selector has several selection pads arranged between the output of the combinational logic circuit and the input of the monostable rocker.
  • the selection of a predetermined pad authorizes a precise operation of the apparatus, for example in remote control mode, or in contactor mode, but not both at the same time.
  • the association of such an electronic circuit with a device of the aforementioned type would limit its possibilities of applications, and would also have the disadvantage of generating an electrical counter-order in the event of forced operation by manual opening or closing operation. closing by the second organ.
  • Another object of the invention consists in authorizing forced operation by the second manual member for opening or closing the contacts, without issuing a counter-command by the electronic circuit.
  • the apparatus according to the invention is characterized in that the electronic circuit for controlling the electromagnet comprises a sequential logic circuit sensitive to the state of the control signal applied to the second input terminal CT, and to the state of the detector in the active position of the selector, and that timing or shaping means modify the internal state of the logic circuit by making the detector signal passive following forced opening or closing operation by the second manual organ.
  • the timing means of the sequential logic circuit are formed by a diverter device intended to derive the control signal applied to the second input terminal CT.
  • the static switch in particular a field effect power transistor, is connected in series with the electromagnet, and is controlled by a monostable flip-flop controlled by the control pulse applied to the first input terminal TL, and by the state of the sequential logic circuit.
  • a remote-controlled current cut-off device represented by the general reference 10 comprises two unipolar cut-off blocks 12, 14 or poles, attached to a remote control block 16 to constitute a modular bipolar remote control system .
  • Each pole 12, 14 is housed in an individual casing of molded insulating material, and contains a cut-off mechanism of the type described in detail in French patent application No. 2,535,520 of the applicant.
  • the two poles 12, 14 constitute the power circuit and are provided with two incoming terminals 18, 20 connected to the low voltage distribution network by two supply lines 22, 24, and two starting terminals 26, 28 connected to a load (not shown) by two connecting conductors 30, 32.
  • the poles 12, 14 can of course be assembled in a single bipolar box. Three or four identical poles can also be juxtaposed to form a three-pole or four-pole breaker.
  • Each pole 12, 14 has a movable main contact 33 bistable actuated between the two closed and open positions of the device.
  • the remote control unit 16 is equipped with a remote control mechanism 34 (fig. 2) intended to ensure the tilting of the movable contact 33 from the closed position to the open position, and vice versa, following an applied remote control command. to an electromagnetic actuator with electromagnet 36.
  • a magneto-thermal trip device associated with a mechanism
  • automatic trigger 38 cooperating with the movable contact 33 to move it to the open position in the event of overload and / or fault, and maintain it in this position regardless of the position of the remote control mechanism 16 as long as the trigger mechanism 38 is in the triggered position.
  • a return to service requires actuation of a lever 40 for manual resetting of the trigger mechanism 38 to authorize in the armed position of the latter a remote-controlled closure of the device by the remote control unit 16.
  • the electromagnet 36 of the remote control unit 16 is provided with a plunger core 42 acting on a pivoting lever 44 articulated at its opposite end on a fixed point 46 of the insulating housing 48.
  • the lever 44 carries a pusher 50 cooperating mechanically with a rocker 52 mounted with limited rotation on a fixed axis 54, and with a return spring 56 in the form of a blade.
  • the rocker 52 is coupled by a connecting rod 58 to a pivoting lever 60 constituting an emergency control member intended to manually open or close the device 10.
  • the lever 60 for manual control is also connected to an arm 62 which can 'straddle in a balance (not shown) acting on the movable contacts 33 of the poles 12, 14, so as to mechanically secure the balance and the rocker 52.
  • the opening and closing of the pole contacts 12, 14 can either be controlled manually by the emergency handle 60, or remote-controlled by excitation of the electromagnet 36 of the remote-controlled unit 16.
  • Each command of the remote control applied to the electromagnet 36 changes the state of the flip-flop 52, and the trigger mechanism 38 remains inactive during these remote-controlled maneuvers.
  • the trigger mechanism 38 causes the contacts of the poles 12, 14 to open, and the reset handle 40 to move to the triggered position.
  • the movable contacts 33 are kept in the open position independently of any remote control command. It is noted that this triggered position of the lever 40 constitutes a reliable indication of the opening of the contacts. Putting the device 10 back into service requires manual intervention to reset the lever 40 in the armed position, the device then being ready for new maneuvers controlled by the remote control mechanism 34.
  • the remote control unit 16 has four connection terminals CT, TL, P and N in internal connection with an electronic circuit 66 for controlling the electromagnet 36 (FIGS. 1 and 3).
  • the two terminals P and N are supply terminals connected by external conductors 68, 70 to an AC or DC voltage source 72, for example 220 Volts.
  • the input terminal TL is assigned to a first impulse command of the remote control type, the impulse signal being generated by the actuation of a first switch or monosta contact. ble, in particular a push button 74, interconnected between the terminal TL and the conductor 68.
  • the input terminal CT is used for a second mixed command, which depends on the state of an adjustment selector S whose function will be described in detail later.
  • a second control or switch contact 76 is electrically connected between the CT terminal and the conductor 68. It is noted that the two input terminals CT and TL are connected by their respective contacts 76, 74 to the same potential, which is that of the supply terminal P, or alternatively, that of the other supply terminal N. In the case of a 220 Volt distribution network, the conductors 68, 70 could be connected directly to the supply lines 22, 24 of the poles 12, 14, authorizing the removal of the voltage source 72.
  • the electronic circuit 66 of FIGS. 3 and 4 is provided with a rectifier bridge 77 with diodes 78 comprising an alternating current input, connected to the power supply terminals P and N of the remote control unit 16, and a full alternating current rectified output. , connected to the coil of the electromagnet 36 via a static switch 80, in particular a MOS.FET field effect power transistor, which may be in a conductive state or in a blocked state.
  • the electronic circuit 66 comprises a timer formed by a monostable flip-flop 82 whose output controls the transistor 80 and whose input is controlled by a sequential logic circuit 84.
  • the monostable flip-flop 82 can be constituted by an integrated circuit 4093 with two inverters 86 , 88 associated with an RC timing circuit.
  • the flip-flop 82 and the logic circuit 84 are supplied by a direct voltage Vcc delivered by a power supply unit 90 comprising a Zener diode 92 disposed in parallel on a filter cell with capacitor 94 and resistor 96, the assembly being connected to the terminals output of rectifier bridge 77.
  • the signal applied to the input terminal TL directly controls the monostable flip-flop 82 to form the first command by pulses of the remote control type.
  • the detector 98 may be formed by a REED relay, the control contact 99 of which is actuated by a permanent magnet secured to a transmission member 100 (in dotted lines in FIG. 3) of the movement of the main movable contacts 33, as described in French Patent No. 2,536,904.
  • the contact 99 of the detector 98 is either open or closed when the main contacts 33 are respectively in the open or closed position.
  • the logic circuit 84 includes an input inverter 102 connected to the terminal CT by a resistor 104.
  • the output of the inverter 102 is connected simultaneously to an inverter 106 which controls one of the inputs E1 of a first NAND logic gate 108, and to one of the inputs E3 of a second NAND logic gate 110.
  • the selector S comprises a contact pad in series with the contact 99 for controlling the detector 98 between ground and a midpoint 112, the latter being connected to the positive pole of the supply voltage Vcc by a resistor 114.
  • the midpoint 112 is connected on the one hand to the other input E2 of the first NAND gate 108 and on the other hand to an inverter 115 connected to the another entrance E4 from the second NAND 110 door.
  • Two branch circuits 116, 118 derive the control slot applied to the input terminal CT to obtain a control pulse on the inputs E1, E3 of the NAND gates 108 and 110.
  • the first branch circuit 116 comprises a capacitor C1 connected between the output of the inverter 106 and the input E1 of the gate 108, and a diode D1 and resistor R1 assembly connected in parallel between the input El and the ground.
  • the second branch circuit 118 includes a capacitor C2 connected between the output of the inverter 102 and the input E3 of the gate 110, and a resistor R2 and diode D2 assembly connected in parallel between the input E3 and the ground.
  • the anode of each diode D1 and D2 is at ground potential.
  • the outputs of the two NAND gates 108, 110 drive another NAND logic gate 120 connected to the input of the monostable flip-flop 82 by a diode 122.
  • the two branch circuits 116, 118 could of course be replaced by other timing circuits or shaping.
  • the second command associated with the CT input terminal depends on the state of the adjustment selector S constituted by a plug-in pad.
  • the logic circuit 84 is sensitive to this signal, and to the logic state of the detector 98. This results in a contactor type command with a function of consistency with the position of the main contacts of the poles 12, 14.
  • the action of the detector 98 is neutralized by interrupting the circuit between the detector 98 and the midpoint 112.
  • the input terminal CT can constitute a second impulse command input, decoupled from the input terminal TL associated with the first impulse command. This results in a possibility of carrying out, via the auxiliary contact block CAOF (not shown in FIG. 1) of the device 10, commands of the pilot remote control type, requiring no additional component, such as diode systems or decoupling relay.
  • the two input terminals TL and CT are simultaneously accessible allowing coexistence between the first command by pulses, and the second assignable command according to the state of the selector S.
  • a priority code is provided between these two types of command: priority belongs to the order that received the most recent order.
  • Control orders applied to TL and CT terminals correspond to edges, which means that the last validated edge imposes its state on the electromagnet 36.
  • the operation of the remote control unit 16 is carried out as follows:
  • each remote control command issued by the rocker 82 to the static power switch 80 causes the excitation of the electromagnet 36 and a change of state of the main movable contacts 33 of the poles 12, 14.
  • This remote control command can come either from the first impulse command associated with the input terminal TL (closing of the push button 74), or from the second assignable command according to the state of the selector S, and associated at the CT input terminal (closing of contact 76).
  • the first command corresponds to an operation of the device 10 in remote control mode, each pulse applied to the input terminal TL causing a change of state of the main contacts 33.
  • Contact 76 can be activated by a clock, timer or automaton (not shown), so as to apply control slots to the input terminal CT, each slot having a width generally greater than that of the pulses of the first control ( see fig. 5).
  • the order of control at the output of the NAND circuit 120 depends on the state of the contact 76 generating the slot at the input terminal CT, and on the state of the detector 98 representing the position of the movable main contacts 33.
  • the passage in the logic 1 state of the output of the NAND circuit 120 corresponding to an order to change the position of the contacts 33 requires that the contact 76 and the detector 98 are at logic levels different from each other, c that is to say that the main contacts 33 are open when the control contact 76 is closed, or that the contacts 33 are closed when the contact 76 is opened.
  • the closure of the contact 76 generates a rising edge of the slot which causes the closing of the main contacts 33.
  • the opening of the contact 76 generates a falling edge of the slot which controls the opening of the main contacts 33.
  • FIGS. 7 and 8 show, in the active position of the selector S, a detailed phase of a timing diagram in contactor mode showing the signals A to P at different points of the electronic circuit 66 of FIG. 4, respectively during a remote control for closing and opening the main contacts 33. No pulse is applied during this phase to the input terminal TL.
  • the second branch circuit 118 which applies a pulse F to the input E3 of the NAND gate 110 instead of the permanent logic 1 state of the signal B during an opening remote control (FIG. 8) .
  • the presence of the branch circuits 116, 118 creates an asymmetry between the control signal CT and the signal C of the detector 98, which is used only to validate or invalidate the control signal CT. This asymmetry does not occur during the normal closing or opening remote control phases, but is essential in the event of manual closing or opening operation by the handle 60 generating forced operation of the device 10. This property is illustrated on the right side of figs. 7 and 8. In FIG. 7 is simulated beyond the instant t1, a manual opening by the lever 60 intervening after a remote control for closing the contacts 33.
  • This forced manual opening causes a change of state of the detector 98 resulting the switching of signals C and G.
  • the output signal K of the NAND gate 120 is in logic state 0, which means that the device 10 accepts forced operation.
  • the absence of the first branch circuit 116 would signify a permanent logic state 1 of signal E, which would induce a counter-command (logic state 1 of signal K) resulting in a remote-controlled closing of the contacts 33 by the electromagnet 36.
  • FIG. 8 is simulated beyond the instant t2, manual closing by the lever 60 intervening after a remote control for opening the contacts 33.
  • the withdrawal of the contact pad of the selector S neutralizes the action of the detector 98 of the position of the contacts 33, and prohibits the operation of the second control in contactor mode.
  • the input terminal CT nevertheless remains accessible to form a command input by pulses, decoupled from the first command associated with the input terminal TL.
  • the input terminals CT and TL of the electronic control circuit 66 are practically insensitive to the capacitive currents likely to appear on a very long connection cable connecting the contacts 76, 74 to the corresponding terminals CT, TL.
  • the voltage VN between the supply terminal N and the earth of the electronic circuit 66 is constituted by a periodic signal with positive half-waves, determined by a diode 78 of the rectifier bridge 77.
  • the leakage capacity of the connecting cable is positively charged at a value substantially equal to the average voltage of VN.
  • the voltage at the input of the inverter 102 of the logic circuit 84, and of the inverter 86 of the monostable flip-flop 82 is close to zero.
  • the CT and TL terminals undergo very significant attenuation at the currents generated by the parasitic capacitance of the cable (attenuation greater than a factor of 10).

Landscapes

  • Selective Calling Equipment (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Harvester Elements (AREA)
  • Burglar Alarm Systems (AREA)
  • Fire Alarms (AREA)
  • Relay Circuits (AREA)

Abstract

A remotely controlled circuit breaker or switch comprises two breaking poles adjoining a remote control unit with an electromagnet, and a toggle for manual operation of the contacts. The remote control unit comprises a selector switch for switching into the electronic circuit a position detector of breaker contacts, four connection terminals, and an electronic power supply circuit for an electromagnet. Two of the input terminals TL (inpulse relay mode) and CT (contactor mode in the active position of the selector switch), are accessible simultaneously with the existence of a priority code between the two controls and of a refresh function of the statuses of the electronic circuit. The latter allows forced manual operation by means of the toggle.

Description

L'invention est relative à un appareil de coupure multipolaire à commande électrique à distance, comprenant :

  • - un dispositif de coupure par pôle équipé d'un contact principal mobile bistable déplaçable entre deux positions de fermeture et d'ouverture,
  • - un premier mécanisme de déclenchement automatique coopérant avec un déclencheur pour déplacer le contact principal mobile vers la position d'ouverture en cas de défaut,
  • - un premier organe manuel de réarmement du premier mécanisme de déclenchement,
  • - un bloc de télécommande comportant un actionneur électromagnétique à électro-aimant associé à un deuxième mécanisme en liaison mécanique avec le contact principal mobile de chaque pôle,
  • - un deuxième organe manuel, accouplé au deuxième mécanisme pour autoriser une ouverture et une fermeture manuelles dudit contact principal mobile.
The invention relates to a multipolar cut-off device with remote electrical control, comprising:
  • - a pole breaking device equipped with a movable bistable main contact that can be moved between two closed and open positions,
  • - a first automatic trigger mechanism cooperating with a trigger to move the movable main contact to the open position in the event of a fault,
  • - a first manual reset member of the first trigger mechanism,
  • - a remote control unit comprising an electromagnetic actuator with an electromagnet associated with a second mechanism in mechanical connection with the movable main contact of each pole,
  • - A second manual member, coupled to the second mechanism to allow manual opening and closing of said movable main contact.

Un tel appareil est décrit dans la demande de brevet français N° 2.535.520 de la demanderesse. On remarque que le premier mécanisme de déclenchement et le deuxième mécanisme de télécommande sont indépendants l'un de l'autre, mais ils agissent tous deux sur le même contact principal mobile. La liaison mécanique entre le deuxième mécanisme de télécommande et le contact mobile est agencée pour ne pas entraver une action du premier mécanisme de déclenchement. Après un déclenchement sur défaut, le premier mécanisme de déclenchement doit être réarmé par actionnement du premier organe manuel pour permettre une télécommande de fermeture. Le deuxième organe manuel accouplé au deuxième mécanisme se substitue à la télécommande pour une ouverture ou fermeture manuelle de l'appareil. Le bloc de télécommande est logé dans un boîtier isolant moulé qui comporte des bornes de connexion de fils de télécommande pour l'actionnement de l'électro-aimant. Cette télécommande de l'appareil de coupure se prête généralement à un mode de fonctionnement en télérupteur grâce à un signal de commande approprié appliqué aux bornes de connexion.Such an apparatus is described in French patent application No. 2,535,520 of the applicant. Note that the first trigger mechanism and the second remote control mechanism are independent of each other, but they both act on the same movable main contact. The mechanical connection between the second remote control mechanism and the movable contact is arranged so as not to hinder an action of the first trigger mechanism. After a fault trip, the first trip mechanism must be reset by actuation of the first manual member to allow a closing remote control. The second manual member coupled to the second mechanism replaces the remote control for manual opening or closing of the device. The remote control unit is housed in a molded insulating housing which includes remote control wire connection terminals for actuating the electromagnet. This remote control of the breaking device generally lends itself to a mode of operation as a remote control switch by means of an appropriate control signal applied to the connection terminals.

L'invention a pour but d'accroître les possibilités d'utilisation d'un tel appareil par adaptation du bloc de télécommande à divers signaux de commande autorisant un fonctionnement multiple.The object of the invention is to increase the possibilities of using such a device by adapting the remote control unit to various control signals allowing multiple operation.

Le bloc de télécommande selon l'invention comporte avantageusement :

  • - un circuit électronique destiné à piloter l'excitation de l'électro-aimant de manière à provoquer en position armée du premier mécanisme un changement d'état du contact mobile bistable à chaque impulsion de commande appliqué à un commutateur statique connecté dans le circuit d'alimentation de l'électro-aimant,
  • - un détecteur de la position du contact principal mobile,
  • - une première borne d'entrée affectée à une première commande par impulsions du circuit électronique, - une deuxième borne d'entrée associée à une deuxième commande mixte dudit circuit électronique, ladite deuxième commande étant destinée selon l'état actif ou l'état inactif d'un sélecteur S de mise en circuit ou de neutralisation du détecteur de position, respectivement à une commande logique par un signal de maintien ou à une commande par impulsions découplée de ladite première commande.
The remote control unit according to the invention advantageously comprises:
  • an electronic circuit intended to control the excitation of the electromagnet so as to cause in the armed position of the first mechanism a change of state of the bistable mobile contact at each control pulse applied to a static switch connected in the circuit d '' electromagnet supply,
  • - a detector of the position of the movable main contact,
  • a first input terminal assigned to a first command by pulses of the electronic circuit, a second input terminal associated with a second mixed command of said electronic circuit, said second command being intended according to the active state or the inactive state a selector S for switching on or neutralizing the position detector, respectively to a logic command by a hold signal or to a pulse command decoupled from said first command.

La première commande correspond à un mode de fonctionnement en télérupteur. Lorsque le sélecteur autorise la prise en compte de l'état du détecteur de position du contact principal mobile, la deuxième commande est assimilée à un mode de fonctionnement en contacteur. Lorsque le sélecteur neutralise le signal du détecteur de position, la deuxième borne d'entrée correspond à une entrée impulsionnelle découplée de la première commande, de manière à autoriser une commande du type télérupteur pilote. Une telle commande peut s'effectuer par l'intermédiaire du bloc de contacts auxiliaires de l'appareil sans utiliser des composants supplémentaires, notamment des dispositifs à diodes ou des relais de découplage.The first command corresponds to a remote control operating mode. When the selector allows the state of the position detector of the movable main contact to be taken into account, the second command is assimilated to an operating mode in contactor. When the selector neutralizes the position detector signal, the second input terminal corresponds to an impulse input decoupled from the first command, so as to authorize a command of the pilot switch type. Such control can be carried out via the auxiliary contact block of the device without using additional components, in particular diode devices or decoupling relays.

La première borne d'entrée TL et la deuxième borne d'entrée CT sont distinctes l'une de l'autre, et sont accessibles simultanément autorisant une coexistence entre la première commande par impulsions et la deuxième commande mixte dépendant de l'état du sélecteur de réglage. Un code de priorité existe entre ces deux commandes, ainsi qu'une fonction de rafraîchissement des états du circuit électronique en cas d'interruption de l'alimentation.The first input terminal TL and the second input terminal CT are distinct from each other, and are accessible simultaneously, allowing coexistence between the first pulse command and the second mixed command depending on the state of the selector. adjustment. A priority code exists between these two commands, as well as a function to refresh the states of the electronic circuit in the event of a power supply interruption.

On a déjà proposé dans la demande de brevet français N° 2.536.904 un circuit électronique de commande d'un appareillage à fonctionnement multiple équipé d'un mécanisme à électro-aimant. Le détecteur de position des contacts de l'appareil reste toujours en circuit, et le sélecteur de réglage comporte plusieurs plots de sélection agencés entre la sortie du circuit logique combinatoire et l'entrée de la bascule monostable. La sélection d'un plot prédéterminé autorise un fonctionnement précis de l'appareillage, par exemple en mode télérupteur, ou en mode contacteur, mais pas les deux à la fois. L'association d'un tel circuit électronique à un appareil du type précité limiterait ses possibilités d'applications, et présenterait en plus l'inconvénient d'engendrer un contre-ordre électrique en cas de fonctionnement forcé par manoeuvre manuelle d'ouverture ou de fermeture par le deuxième organe.French patent application No. 2,536,904 has already proposed an electronic circuit for controlling a multifunction apparatus fitted with an electromagnet mechanism. The position sensor of the device's contacts always remains on, and the adjustment selector has several selection pads arranged between the output of the combinational logic circuit and the input of the monostable rocker. The selection of a predetermined pad authorizes a precise operation of the apparatus, for example in remote control mode, or in contactor mode, but not both at the same time. The association of such an electronic circuit with a device of the aforementioned type would limit its possibilities of applications, and would also have the disadvantage of generating an electrical counter-order in the event of forced operation by manual opening or closing operation. closing by the second organ.

Un autre but de l'invention consiste à autoriser le fonctionnement forcé par le deuxième organe manuel d'ouverture ou de fermeture des contacts, sans émission de contre-ordre par le circuit électronique.Another object of the invention consists in authorizing forced operation by the second manual member for opening or closing the contacts, without issuing a counter-command by the electronic circuit.

L'appareil selon l'invention est caractérisé en ce que le circuit électronique de commande de l'électro-aimant comprend un circuit logique séquentiel sensible à l'état du signal de commande appliqué à la deuxième borne d'entrée CT, et à l'état du détecteur en position active du sélecteur, et que des moyens de temporisation ou de mise en forme modifient l'état interne du circuit logique en rendant passif le signal du détecteur suite à un fonctionnement forcé d'ouverture ou de fermeture par le deuxième organe manuel.The apparatus according to the invention is characterized in that the electronic circuit for controlling the electromagnet comprises a sequential logic circuit sensitive to the state of the control signal applied to the second input terminal CT, and to the state of the detector in the active position of the selector, and that timing or shaping means modify the internal state of the logic circuit by making the detector signal passive following forced opening or closing operation by the second manual organ.

Les moyens de temporisation du circuit logique séquentiel sont formés par un dispositif dérivateur destiné à dériver le signal de commande appliqué à la deuxième borne dentrée CT.The timing means of the sequential logic circuit are formed by a diverter device intended to derive the control signal applied to the second input terminal CT.

Le commutateur statique, notamment un transistor de puissance à effet de champ, est connecté en série avec l'électro-aimant, et est commandé par une bascule monostable pilotée par l'impulsion de commande appliquée à la première borne d'entrée TL, et par l'état du circuit logique séquentiel.The static switch, in particular a field effect power transistor, is connected in series with the electromagnet, and is controlled by a monostable flip-flop controlled by the control pulse applied to the first input terminal TL, and by the state of the sequential logic circuit.

D'autres avantages et caractéristiques ressortiront plus clairement de l'exposé qui va suivre d'un mode de réalisation de l'invention, donné à titre d'exemples non limitatifs et représentés aux dessins annexés dans lesquels :

  • - la figure 1 est une vue schématique en élévation de l'appareil de coupure formé par des blocs accolés de coupure et de télécommande;
  • - la figure 2 est une vue schématique du mécanisme associé au bloc de télécommande;
  • - la figure 3 représente le schéma synoptique du circuit électronique selon l'invention;
  • - la figure 4 montre le schéma détaillé du circuit selon la figure 3;
  • - les figures 5 et 6 représentent les chronogrammes du circuit électronique de la fig. 3, respectivement en position active (S=1 et en position inactive (S=0) du sélecteur de réglage;
  • - les figures 7 et 8 montrent une phase détaillée d'un chronogramme, en mode contacteur, de signaux en différents points du circuit de la fig. 4, respectivement lors d'une télécommande de fermeture et d'ouverture des contacts principaux.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, given by way of nonlimiting examples and represented in the appended drawings in which:
  • - Figure 1 is a schematic elevational view of the switching device formed by adjoining blocks of cutting and remote control;
  • - Figure 2 is a schematic view of the mechanism associated with the remote control unit;
  • - Figure 3 shows the block diagram of the electronic circuit according to the invention;
  • - Figure 4 shows the detailed diagram of the circuit according to Figure 3;
  • - Figures 5 and 6 show the timing diagrams of the electronic circuit of FIG. 3, respectively in the active position (S = 1 and in the inactive position (S = 0 ) of the adjustment selector;
  • - Figures 7 and 8 show a detailed phase of a timing diagram, in contactor mode, of signals at different points in the circuit of FIG. 4, respectively during a remote control for closing and opening the main contacts.

Sur les figures 1 et 2, un appareil de coupure de courant télécommandé, représenté par le repère général 10 comporte deux blocs unipolaires de coupure 12, 14 ou pôles, accolés à un bloc de télécommande 16 pour constituer un système modulaire bipolaire de commande à distance. Chaque pôle 12, 14 est logé dans un boîtier individuel en matière isolante moulée, et renferme un mécanisme de coupure du type décrit en détail dans la demande de brevet français N° 2.535.520 de la demanderesse. Les deux pôles 12, 14 constituent le circuit de puissance et sont dotés de deux bornes d'arrivée 18, 20 raccordées au réseau de distribution à basse tension par deux lignes d'alimentation 22, 24, et de deux bornes de départ 26, 28 connectées à une charge (non représentée) par deux conducteurs de liaison 30, 32. Les pôles 12, 14 peuvent bien entendu être rassemblés dans un boîtier unique bipolaire. Trois ou quatre pôles identiques peuvent également être juxtaposés pour former un appareil de coupure tripolaire ou té- trapolaire.In FIGS. 1 and 2, a remote-controlled current cut-off device, represented by the general reference 10 comprises two unipolar cut-off blocks 12, 14 or poles, attached to a remote control block 16 to constitute a modular bipolar remote control system . Each pole 12, 14 is housed in an individual casing of molded insulating material, and contains a cut-off mechanism of the type described in detail in French patent application No. 2,535,520 of the applicant. The two poles 12, 14 constitute the power circuit and are provided with two incoming terminals 18, 20 connected to the low voltage distribution network by two supply lines 22, 24, and two starting terminals 26, 28 connected to a load (not shown) by two connecting conductors 30, 32. The poles 12, 14 can of course be assembled in a single bipolar box. Three or four identical poles can also be juxtaposed to form a three-pole or four-pole breaker.

Chaque pôle 12, 14 comporte un contact principal mobile 33 bistable actionné entre les deux positions de fermeture et d'ouverture de l'appareil. Le bloc de télécommande 16 est équipé d'un mécanisme de télécommande 34 (fig. 2) destiné à assurer le basculement du contact mobile 33 de la position fermée vers la position ouvert, et inversement, à la suite d'un ordre de télécommande appliqué à un actionneur électromagnétique à électro-aimant 36. A l'intérieur de chaque pôle de coupure 12, 14 est agencé un déclencheur magnétothermique associé à un mécanisme deEach pole 12, 14 has a movable main contact 33 bistable actuated between the two closed and open positions of the device. The remote control unit 16 is equipped with a remote control mechanism 34 (fig. 2) intended to ensure the tilting of the movable contact 33 from the closed position to the open position, and vice versa, following an applied remote control command. to an electromagnetic actuator with electromagnet 36. Inside each cut-off pole 12, 14 is arranged a magneto-thermal trip device associated with a mechanism

déclenchement automatique 38 coopérant avec le contact mobile 33 pour le déplacer vers la position ouvert en cas de surcharge et/ou de défaut, et le maintenir dans cette position indépendamment de la position du mécanisme de télécommande 16 tant que le mécanisme de déclenchement 38 se trouve en position déclenchée. Une remise en service nécessite un actionnement d'une manette 40 de réarmement manuel du mécanisme de déclenchement 38 pour autoriser en position armée de ce dernier une fermeture télécommandée de l'appareil par le bloc de télécommande 16.automatic trigger 38 cooperating with the movable contact 33 to move it to the open position in the event of overload and / or fault, and maintain it in this position regardless of the position of the remote control mechanism 16 as long as the trigger mechanism 38 is in the triggered position. A return to service requires actuation of a lever 40 for manual resetting of the trigger mechanism 38 to authorize in the armed position of the latter a remote-controlled closure of the device by the remote control unit 16.

L'électro-aimant 36 du bloc de télécommande 16 est pourvu d'un noyau plongeur 42 agissant sur un levier pivotant 44 articulé à son extrémité opposée sur un point fixe 46 du boîtier 48 isolant. Le levier 44 porte un poussoir 50 coopérant mécaniquement avec une bascule 52 montée à rotation limitée sur un axe 54 fixe, et avec un ressort 56 de rappel en forme de lame. La bascule 52 est accouplée par un embiellage 58 à une manette 60 pivotante constituant un organe de commande de secours destiné à ouvrir ou fermer manuellement l'appareil 10. La manette 60 de commande manuelle est reliée d'autre part à un bras 62 pouvant s'enfourcher dans un balancier (non représenté) agissant sur les contacts 33 mobiles des pôles 12, 14, de manière à solidariser mécaniquement le balancier et la bascule 52.The electromagnet 36 of the remote control unit 16 is provided with a plunger core 42 acting on a pivoting lever 44 articulated at its opposite end on a fixed point 46 of the insulating housing 48. The lever 44 carries a pusher 50 cooperating mechanically with a rocker 52 mounted with limited rotation on a fixed axis 54, and with a return spring 56 in the form of a blade. The rocker 52 is coupled by a connecting rod 58 to a pivoting lever 60 constituting an emergency control member intended to manually open or close the device 10. The lever 60 for manual control is also connected to an arm 62 which can 'straddle in a balance (not shown) acting on the movable contacts 33 of the poles 12, 14, so as to mechanically secure the balance and the rocker 52.

Le fonctionnement de l'appareil de coupure selon le brevet N° 2.535.520 précité est rappelé brièvement:The operation of the cut-off device according to the aforementioned patent No. 2,535,520 is briefly recalled:

En position armée de la manette 40 de réarmement, l'ouverture et la fermeture des contacts des pôles 12, 14 peuvent être soit pilotées manuellement par la manette 60 de secours, soit télécommandées par excitation de l'électro-aimant 36 du bloc de télécommandé 16. A chaque ordre de télécommande appliqué à l'électro-aimant 36 s'opère un changement d'état de la bascule 52, et le mécanisme de déclenchement 38 reste inactif lors de ces manoeuvres télécommandées.In the armed position of the reset handle 40, the opening and closing of the pole contacts 12, 14 can either be controlled manually by the emergency handle 60, or remote-controlled by excitation of the electromagnet 36 of the remote-controlled unit 16. Each command of the remote control applied to the electromagnet 36 changes the state of the flip-flop 52, and the trigger mechanism 38 remains inactive during these remote-controlled maneuvers.

En cas de défaut, le mécanisme de déclenchement 38 provoque l'ouverture des contacts des pôles 12, 14, et le déplacement de la manette 40 de réarmement vers la position déclenchée. Les contacts mobiles 33 sont maintenus en position ouvert indépendamment de tout ordre de télécommande. On remarque que cette position déclenchée de la manette 40 constitue une indication fiable de l'ouverture des contacts. Une remise en service de l'appareil 10 nécessite une intervention manuelle de réarmement de la manette 40 en position armée, l'appareil étant alors prêt pour de nouvelles manoeuvres pilotées par le mécanisme de télécommande 34.In the event of a fault, the trigger mechanism 38 causes the contacts of the poles 12, 14 to open, and the reset handle 40 to move to the triggered position. The movable contacts 33 are kept in the open position independently of any remote control command. It is noted that this triggered position of the lever 40 constitutes a reliable indication of the opening of the contacts. Putting the device 10 back into service requires manual intervention to reset the lever 40 in the armed position, the device then being ready for new maneuvers controlled by the remote control mechanism 34.

Le bloc de télécommande 16 comporte quatre bornes de connexion CT, TL, P et N en liaison interne avec un circuit électronique 66 de commande de l'électro-aimant 36 (fig. 1 et 3). Les deux bornes P et N sont des bornes d'alimentation reliées par des conducteurs 68, 70 externes à une source de tension 72 alternative ou continue, par exemple 220 Volts. La borne d'entréê TL est affectée à une première commande par impulsions du type télérupteur, le signal impulsionnel étant engendré par l'actionnement d'un premier interrupteur ou contact monostable, notamment un bouton-poussoir 74, interconnec- té entre la borne TL et le conducteur 68. La borne d'entrée CT est utilisée pour une deuxième commande mixte, qui dépend de l'état d'un sélecteur S de réglage dont la fonction sera décrite en détail par la suite. Un deuxième contact 76 de commande ou interrupteur est connecté électriquement entre la borne CT et le conducteur 68. On remarque que les deux bornes d'entrée CT et TL sont reliées par leurs contacts 76, 74 respectifs à un même potentiel, qui est celui de la borne d'alimentation P, ou selon une variante, celui de l'autre borne d'alimentation N. Dans le cas d'un réseau de distribution à 220 Volts, les conducteurs 68, 70 pourraient être raccordés directement aux lignes d'alimentation 22, 24 des pôles 12, 14, autorisant la suppression de la source de tension 72.The remote control unit 16 has four connection terminals CT, TL, P and N in internal connection with an electronic circuit 66 for controlling the electromagnet 36 (FIGS. 1 and 3). The two terminals P and N are supply terminals connected by external conductors 68, 70 to an AC or DC voltage source 72, for example 220 Volts. The input terminal TL is assigned to a first impulse command of the remote control type, the impulse signal being generated by the actuation of a first switch or monosta contact. ble, in particular a push button 74, interconnected between the terminal TL and the conductor 68. The input terminal CT is used for a second mixed command, which depends on the state of an adjustment selector S whose function will be described in detail later. A second control or switch contact 76 is electrically connected between the CT terminal and the conductor 68. It is noted that the two input terminals CT and TL are connected by their respective contacts 76, 74 to the same potential, which is that of the supply terminal P, or alternatively, that of the other supply terminal N. In the case of a 220 Volt distribution network, the conductors 68, 70 could be connected directly to the supply lines 22, 24 of the poles 12, 14, authorizing the removal of the voltage source 72.

Le circuit électronique 66 des figures 3 et 4 est doté d'un pont redresseur 77 à diodes 78 comprenant une entrée à courant alternatif, branchée aux bornes d'alimentation P et N du bloc de télécommande 16, et une sortie à courant redressé double alternance, connectée à la bobine de l'électro-aimant 36 par l'intermédiaire d'un commutateur statique 80, notamment un transistor de puissance à effet de champ MOS.FET, lequel peut se trouver dans un état conducteur ou dans un état bloqué. Le circuit électronique 66 comporte un temporisateur formé par une bascule monostable 82 dont la sortie commande le transistor 80 et dont l'entrée est pilotée par un circuit logique séquentiel 84. La bascule monostable 82 peut être constituée par un circuit intégré 4093 à deux inverseurs 86, 88 associés à un circuit de temporisation RC. La bascule 82 et le circuit logique 84 sont alimentés par une tension continue Vcc délivrée par un bloc d'alimentation 90 comprenant une diode Zener 92 disposée en parallèle sur une cellule de filtrage à condensateur 94 et résistance 96, l'ensemble étant connecté aux bornes de sortie du pont redresseur 77.The electronic circuit 66 of FIGS. 3 and 4 is provided with a rectifier bridge 77 with diodes 78 comprising an alternating current input, connected to the power supply terminals P and N of the remote control unit 16, and a full alternating current rectified output. , connected to the coil of the electromagnet 36 via a static switch 80, in particular a MOS.FET field effect power transistor, which may be in a conductive state or in a blocked state. The electronic circuit 66 comprises a timer formed by a monostable flip-flop 82 whose output controls the transistor 80 and whose input is controlled by a sequential logic circuit 84. The monostable flip-flop 82 can be constituted by an integrated circuit 4093 with two inverters 86 , 88 associated with an RC timing circuit. The flip-flop 82 and the logic circuit 84 are supplied by a direct voltage Vcc delivered by a power supply unit 90 comprising a Zener diode 92 disposed in parallel on a filter cell with capacitor 94 and resistor 96, the assembly being connected to the terminals output of rectifier bridge 77.

Le signal appliqué à la borne d'entrée TL pilote directement la bascule monostable 82 pour former la première commande par impulsions du type télérupteur.The signal applied to the input terminal TL directly controls the monostable flip-flop 82 to form the first command by pulses of the remote control type.

L'état de la sortie du circuit logique séquentiel 84 dépend :

  • - du signal de commande appliqué à la borne d'entrée CT,
  • - de la position du sélecteur de réglage S,
  • - et de l'état d'un détecteur 98 de la position des contacts principaux mobiles 33 des pôles 12, 14.
The state of the output of the sequential logic circuit 84 depends on:
  • - the control signal applied to the CT input terminal,
  • - the position of the adjustment selector S,
  • - And of the state of a detector 98 of the position of the main movable contacts 33 of the poles 12, 14.

Le détecteur 98 peut être formé par un relais REED dont le contact de commande 99 est actionné par un aimant permanent solidaire d'un organe de transmission 100 (en pointillé sur fig. 3) du mouvement des contacts principaux mobiles 33, tel que décrit dans le brevet français N° 2.536.904. Le contact 99 du détecteur 98 est soit ouvert, soit fermé lorsque les contacts principaux 33 se trouvent respectivement en position d'ouverture ou de fermeture.The detector 98 may be formed by a REED relay, the control contact 99 of which is actuated by a permanent magnet secured to a transmission member 100 (in dotted lines in FIG. 3) of the movement of the main movable contacts 33, as described in French Patent No. 2,536,904. The contact 99 of the detector 98 is either open or closed when the main contacts 33 are respectively in the open or closed position.

Le circuit logique 84 comporte un inverseur d'entrée 102 relié à la borne CT par une résistance 104. La sortie de l'inverseur 102 est connectée simultanément à un inverseur 106 qui pilote l'une des entrées E1 d'une première porte logique NAND 108, et à l'une des entrées E3 d'une deuxième porte logique NAND 110. Le sélecteur S comporte un plot de contact en série avec le contact 99 de commande du détecteur 98 entre la masse et un point milieu 112, ce dernier étant connecté au pôle positif de la tension d'alimentation Vcc par une résistance 114. Le point milieu 112 est branché d'une part à l'autre entrée E2 de la première porte NAND 108 et d'autre part à un inverseur 115 relié à l'autre entrée E4 de la deuxième porte NAND 110.The logic circuit 84 includes an input inverter 102 connected to the terminal CT by a resistor 104. The output of the inverter 102 is connected simultaneously to an inverter 106 which controls one of the inputs E1 of a first NAND logic gate 108, and to one of the inputs E3 of a second NAND logic gate 110. The selector S comprises a contact pad in series with the contact 99 for controlling the detector 98 between ground and a midpoint 112, the latter being connected to the positive pole of the supply voltage Vcc by a resistor 114. The midpoint 112 is connected on the one hand to the other input E2 of the first NAND gate 108 and on the other hand to an inverter 115 connected to the another entrance E4 from the second NAND 110 door.

Deux circuits dérivateurs 116, 118 dérivent le créneau de commande appliqué à la borne d'entrée CT pour obtenir une impulsion de commande sur les entrées E1, E3 des portes NAND 108 et 110. Le premier circuit dérivateur 116 comporte un condensateur C1 branché entre la sortie de l'inverseur 106 et l'entrée E1 de la porte 108, et un ensemble diode D1 et résistance R1 connecté en parallèlle entre l'entrée El et la masse. Le deuxième circuit dérivateur 118 comprend un condensateur C2 relié entre la sortie de l'inverseur 102 et l'entrée E3 de la porte 110, et un ensemble résistance R2 et diode D2 connecté en parallèle entre l'entrée E3 et la masse. L'anode de chaque diode D1 et D2 se trouve au potentiel de la masse. Les sorties des deux portes NAND 108, 110 pilotent une autre porte logique NAND 120 branchée à l'entrée de la bascule monostable 82 par une diode 122. Les deux circuits dérivateurs 116, 118 pourraient bien entendu être remplacés par d'autres circuits de temporisation ou de mise en forme.Two branch circuits 116, 118 derive the control slot applied to the input terminal CT to obtain a control pulse on the inputs E1, E3 of the NAND gates 108 and 110. The first branch circuit 116 comprises a capacitor C1 connected between the output of the inverter 106 and the input E1 of the gate 108, and a diode D1 and resistor R1 assembly connected in parallel between the input El and the ground. The second branch circuit 118 includes a capacitor C2 connected between the output of the inverter 102 and the input E3 of the gate 110, and a resistor R2 and diode D2 assembly connected in parallel between the input E3 and the ground. The anode of each diode D1 and D2 is at ground potential. The outputs of the two NAND gates 108, 110 drive another NAND logic gate 120 connected to the input of the monostable flip-flop 82 by a diode 122. The two branch circuits 116, 118 could of course be replaced by other timing circuits or shaping.

La deuxième commande associée à la borne d'entrée CT dépend de l'état du sélecteur S de réglage constitué par un plot enfichable.The second command associated with the CT input terminal depends on the state of the adjustment selector S constituted by a plug-in pad.

En position active du sélecteur S, correspondant à la mise en place du plot (S = 1), le détecteur 98 est relié électriquement au point milieu 112, et la borne d'entrée CT constitue une entrée logique à laquelle peut être appliqué un signal de maintien, par exemple à créneaux. Le circuit logique 84 est sensible à ce signal, et à l'état logique du détecteur 98. Il en résulte une commande du type contacteur avec une fonction de cohérence avec la position des contacts principaux des pôles 12, 14.In the active position of the selector S, corresponding to the positioning of the stud (S = 1), the detector 98 is electrically connected to the midpoint 112, and the input terminal CT constitutes a logic input to which a signal can be applied holding, for example with slots. The logic circuit 84 is sensitive to this signal, and to the logic state of the detector 98. This results in a contactor type command with a function of consistency with the position of the main contacts of the poles 12, 14.

En position inactive du sélecteur S, correspondant à l'enlèvement du plot (S= 0), l'action du détecteur 98 est neutralisée grâce à l'interruption du circuit entre le détecteur 98 et le point milieu 112. La borne d'entrée CT peut constituer une deuxième entrée de commande impulsionnelle, découplée de la borne d'entrée TL associée à la première commande par impulsions. Il en résulte une possibilité de réaliser, via le bloc de contacts auxiliaires CAOF (non représenté sur la fig. 1) de l'appareil 10, des commandes du type télérupteur pilote, ne nécessitant aucun composant supplémentaire, tel des systèmes à diodes ou des relais de découplage.In the inactive position of the selector S, corresponding to the removal of the pad (S = 0), the action of the detector 98 is neutralized by interrupting the circuit between the detector 98 and the midpoint 112. The input terminal CT can constitute a second impulse command input, decoupled from the input terminal TL associated with the first impulse command. This results in a possibility of carrying out, via the auxiliary contact block CAOF (not shown in FIG. 1) of the device 10, commands of the pilot remote control type, requiring no additional component, such as diode systems or decoupling relay.

Les deux bornes d'entrée TL et CT sont accessibles simultanément autorisant une coexistence entre la première commande par impulsions, et la deuxième commande affectable selon l'état du sélecteur S. Un code de priorité est prévu entre ces deux types de commande : la priorité appartient à la commande qui a reçu l'ordre le plus récent. Les ordres de commande appliqués aux bornes TL et CT correspondent à des fronts, ce qui entraîne que le dernier front validé impose son état à l'électro-aimant 36.The two input terminals TL and CT are simultaneously accessible allowing coexistence between the first command by pulses, and the second assignable command according to the state of the selector S. A priority code is provided between these two types of command: priority belongs to the order that received the most recent order. Control orders applied to TL and CT terminals correspond to edges, which means that the last validated edge imposes its state on the electromagnet 36.

Une fonction de rafraîchissement des états est engendrée lors de l'interruption du circuit d'alimentation de l'électronique pouvant intervenir lors d'une coupure volontaire ou d'une coupure accidentelle du secteur. Le contact R (fig. 3) inséré entre la borne P et la source de tension 72, symbolise cette fonction de rafraîchissement des états. En position inactive du sélecteur (S=0), rien ne se passe à la disparition et au retour de la tension d'alimentation, sauf si au retour la borne d'entrée CT ou la borne d'entrée TL se trouve à l'état logique 1. Dans ce dernier cas, l'appareil change d'état. En position active du sélecteur (S=1 l'appareil ne change pas d'état à la disparition de la tension d'alimentation. Au retour de l'alimentation, l'appareil 10 se met en conformité avec l'état logique de la borne d'entrée CT, si le bouton-poussoir 74 associé à la borne d'entrée TL est ouvert. Le blocage du bouton-poussoir 74 en position enfoncée imposerait un état logique 1 permanent à la borne TL et provoquerait un changement d'état de l'appareil 10. Les deux chronogrammes des fig. 5 et 6 représentent en position active (S=1) et inactive (S=0) du sélecteur S, les états logiques en différents points du circuit électronique 66 de la fig. 3, pour un fonctionnement simultané des première et deuxième commandes et, suite à la présence, à la coupure et au retour de la tension d'alimentation :

  • - contact R (tension d'alimentation de l'électronique)
  • - contact 74 (borne d'entrée TL)
  • - contact 76 (borne d'entrée CT)
  • - sortie de la bascule monostable 82
  • - contacts principaux 33 via le détecteur 98.
A status refresh function is generated when the electronics supply circuit is interrupted, which can occur during a voluntary cut or an accidental cut of the sector. The contact R (fig. 3) inserted between the terminal P and the voltage source 72, symbolizes this state refresh function. In the inactive position of the selector (S = 0), nothing happens when the supply voltage disappears and returns, unless on return the CT input terminal or the TL input terminal is at logical state 1. In the latter case, the device changes state. In the active position of the selector (S = 1 the device does not change state when the supply voltage disappears. When the power returns, the device 10 conforms to the logic state of the CT input terminal, if the push button 74 associated with the TL input terminal is open. Locking the push button 74 in the pressed position would impose a permanent logic 1 state on the TL terminal and would cause a change of state of the device 10. The two timing diagrams of Figs. 5 and 6 represent in the active (S = 1) and inactive (S = 0 ) positions of the selector S, the logic states at different points of the electronic circuit 66 of Fig. 3 , for simultaneous operation of the first and second commands and, following the presence, cut-off and return of the supply voltage:
  • - contact R (electronics supply voltage)
  • - contact 74 (input terminal TL)
  • - contact 76 (CT input terminal)
  • - output of the monostable scale 82
  • - main contacts 33 via detector 98.

Le fonctionnement du bloc de télécommande 16 s'effectue de la manière suivante :The operation of the remote control unit 16 is carried out as follows:

En position armée de la manette 40 de réarmement, chaque ordre de télécommande délivré par la bascule monstable 82 au commutateur statique de puissance 80 provoque l'excitation de l'électro-aimant 36 et un changement d'état des contacts principaux mobiles 33 des pôles 12, 14. Cet ordre de télécommande peut parvenir soit de la première commande par impulsions associée à la borne d'entrée TL (fermeture du bouton-poussoir 74), soit de la deuxième commande affectable selon l'état du sélecteur S, et associée à la borne d'entrée CT (fermeture du contact 76).In armed position of the reset lever 40, each remote control command issued by the rocker 82 to the static power switch 80 causes the excitation of the electromagnet 36 and a change of state of the main movable contacts 33 of the poles 12, 14. This remote control command can come either from the first impulse command associated with the input terminal TL (closing of the push button 74), or from the second assignable command according to the state of the selector S, and associated at the CT input terminal (closing of contact 76).

La première commande correspond à un fonctionnement de l'appareil 10 en mode télérupteur, chaque impulsion appliquée à la borne d'entrée TL provoquant un changement d'état des contacts principaux 33.The first command corresponds to an operation of the device 10 in remote control mode, each pulse applied to the input terminal TL causing a change of state of the main contacts 33.

La deuxième commande correspond à un mode contacteur de l'appareil 10 lorsque le plot de contact du sélecteur S se trouve en position enfichée (S=1). Le contact 76 peut être actionné par une horloge, minuterie ou automate (non représentés), de manière à appliquer à la borne d'entrée CT des créneaux de commande, chaque créneau ayant une largeur généralement supérieure à celle des impulsions de la première commande (voir fig. 5). L'ordre de commande à la sortie du circuit NAND 120 dépend de l'état du contact 76 engendrant le créneau à la borne d'entrée CT, et de l'état du détecteur 98 représentant la position des contacts principaux mobiles 33. Le passage à l'état logique 1 de la sortie du circuit NAND 120 correspondant à un ordre de changement de position des contacts 33, nécessite que le contact 76 et le détecteur 98 se trouvent à des niveaux logiques différents l'un de l'autre, c'est-à-dire que les contacts principaux 33 sont ouverts lors de la fermeture du contact de commande 76, ou que les contacts 33 sont fermés lors de l'ouverture du contact 76. Dans le premier cas, la fermeture du contact 76 engendre un front montant du créneau qui entraîne la fermeture des contacts principaux 33. Dans le deuxième cas, l'ouverture du contact 76 engendre un front descendant du créneau qui pilote l'ouverture des contacts principaux 33. La fermeture du contact 76 en position fermée des contacts principaux 33, et l'ouverture du contact 76 en position ouvert des contacts principaux 33 n'engendrent aucun changement d'état de l'appareil 10. Ce mode de fonctionnement est identique à celui décrit dans le brevet français 2.536.904.The second command corresponds to a contactor mode of the device 10 when the contact pad of the selector S is in the plugged-in position (S = 1 ). Contact 76 can be activated by a clock, timer or automaton (not shown), so as to apply control slots to the input terminal CT, each slot having a width generally greater than that of the pulses of the first control ( see fig. 5). The order of control at the output of the NAND circuit 120 depends on the state of the contact 76 generating the slot at the input terminal CT, and on the state of the detector 98 representing the position of the movable main contacts 33. The passage in the logic 1 state of the output of the NAND circuit 120 corresponding to an order to change the position of the contacts 33, requires that the contact 76 and the detector 98 are at logic levels different from each other, c that is to say that the main contacts 33 are open when the control contact 76 is closed, or that the contacts 33 are closed when the contact 76 is opened. In the first case, the closure of the contact 76 generates a rising edge of the slot which causes the closing of the main contacts 33. In the second case, the opening of the contact 76 generates a falling edge of the slot which controls the opening of the main contacts 33. The closing of the contact 76 in the closed position of the main contacts 33, and the opening e of the contact 76 in the open position of the main contacts 33 do not cause any change in the state of the device 10. This operating mode is identical to that described in French patent 2,536,904.

Les figures 7 et 8 montrent, en position active du sélecteur S, une phase détaillée d'un chronogramme en mode contacteur montrant les signaux A à P en différents points du circuit électronique 66 de la fig. 4, respectivement lors d'une télécommande de fermeture et d'ouverture des contacts principaux 33. Aucune impulsion n'est appliquée durant cette phase à la borne d'entrée TL. On remarque le rôle fondamental du circuit dérivateur 116, qui dérive l'ordre de commande CT, de manière à appliquer une impulsion E sur l'entrée E1 de la porte NAND 108 au lieu de l'état logique 1 permanent du signal D lors d'une télécommande de fermeture (fig. 7). Il en est de même du deuxième circuit dérivateur 118 qui applique une impulsion F sur l'entrée E3 de la porte NAND 110 au lieu de l'état logique 1 permanent du signal B lors d'une télécommande d'ouverture (fig. 8). La présence des circuits dérivateurs 116, 118 crée une dissymétrie entre le signal de commande CT et le signal C du détecteur 98, qui sert uniquement à valider ou à infirmer le signal de commande CT. Cette dissymétrie n'intervient pas pendant les phases normales de télécommande de fermeture ou d'ouverture, mais est indispensable en cas de manoeuvre manuelle de fermeture ou d'ouverture par la manette 60 engendrant un fonctionnement forcé de l'appareil 10. Cette propriété est illustrée sur la partie de droite des fig. 7 et 8. Sur la figure 7 est simulée au-delà de l'instant t1, une ouverture manuelle par la manette 60 intervenant après une télécommande de fermeture des contacts 33. Cette ouverture manuelle forcée provoque un changement d'état du détecteur 98 entraînant le basculement des signaux C et G. En présence du premier circuit dérivateur 116, le signal de sortie K de la porte NAND 120 se trouve à l'état logique 0, ce qui signifie que l'appareil 10 accepte le fonctionnement forcé. L'absence du premier circuit dérivateur 116 signifierait un état logique 1 permanent du signal E, ce qui induirait un contre- ordre (état logique 1 du signal K) entraînant une re- fermeture télécommandée des contacts 33 par l'électro-aimant 36. Sur la figure 8 est simulée au-delà de l'instant t2, une fermeture manuelle par la manette 60 intervenant après une télécommande d'ouverture des con-- tacts 33. Il en résulte un changement d'état des signaux C et G (basculement du détecteur 98), mais le signal de sortie K de la porte NAND 120 reste à l'etat logique 0 grâce à la présence du deuxième circuit dérivateur 118 qui autorise ce fonctionnement forcé. L'absence du circuit 118 entraînerait l'émission d'un contreordre (signal K à l'état logique 1) à électro-aimant 36 et une réouverture télécommandée des contacts 33.FIGS. 7 and 8 show, in the active position of the selector S, a detailed phase of a timing diagram in contactor mode showing the signals A to P at different points of the electronic circuit 66 of FIG. 4, respectively during a remote control for closing and opening the main contacts 33. No pulse is applied during this phase to the input terminal TL. Note the fundamental role of the derivative circuit 116, which derives the command command CT, so as to apply a pulse E to the input E1 of the NAND gate 108 instead of the permanent logic 1 state of the signal D during d '' a closing remote control (fig. 7). The same is true of the second branch circuit 118 which applies a pulse F to the input E3 of the NAND gate 110 instead of the permanent logic 1 state of the signal B during an opening remote control (FIG. 8) . The presence of the branch circuits 116, 118 creates an asymmetry between the control signal CT and the signal C of the detector 98, which is used only to validate or invalidate the control signal CT. This asymmetry does not occur during the normal closing or opening remote control phases, but is essential in the event of manual closing or opening operation by the handle 60 generating forced operation of the device 10. This property is illustrated on the right side of figs. 7 and 8. In FIG. 7 is simulated beyond the instant t1, a manual opening by the lever 60 intervening after a remote control for closing the contacts 33. This forced manual opening causes a change of state of the detector 98 resulting the switching of signals C and G. In the presence of the first branch circuit 116, the output signal K of the NAND gate 120 is in logic state 0, which means that the device 10 accepts forced operation. The absence of the first branch circuit 116 would signify a permanent logic state 1 of signal E, which would induce a counter-command (logic state 1 of signal K) resulting in a remote-controlled closing of the contacts 33 by the electromagnet 36. In FIG. 8 is simulated beyond the instant t2, manual closing by the lever 60 intervening after a remote control for opening the contacts 33. This results in a change of state of the signals C and G ( switch 98), but the output signal K from the NAND gate 120 remains in logic state 0 thanks to the presence of the second branch circuit 118 which authorizes this forced operation. The absence of circuit 118 would cause the emission of a counter-control (signal K in logic state 1) with electromagnet 36 and a remote-controlled reopening of contacts 33.

Le retrait du plot de contact du sélecteur S neutralise l'action du détecteur 98 de position des contacts 33, et interdit le fonctionnement de la deuxième commande en mode contacteur. La borne d'entrée CT reste néanmoins accessible pour former une entrée de commande par impulsions, découplée de la première commande associée à la borne d'entrée TL.The withdrawal of the contact pad of the selector S neutralizes the action of the detector 98 of the position of the contacts 33, and prohibits the operation of the second control in contactor mode. The input terminal CT nevertheless remains accessible to form a command input by pulses, decoupled from the first command associated with the input terminal TL.

Les bornes d'entrée CT et TL du circuit électronique 66 de commande sont pratiquement insensibles aux courants capacitifs susceptibles d'apparaître sur un câble de liaison de grande longueur raccordant les contacts 76, 74 aux bornes CT, TL correspondantes. La tension VN entre la borne d'alimentation N et la masse du circuit électronique 66 est constituée par un signal périodique à alternances positives, déterminé par une diode 78 du pont redresseur 77. La capacité de fuite du câble de liaison se charge positivement à une valeur sensiblement égale à la tension moyenne de VN. En l'absence de signaux de commande appliqués aux bornes CT, TL, la tension à l'entrée de l'inverseur 102 du circuit logique 84, et de l'inverseur 86 de la bascule monostable 82 est voisine de zéro. Il en résulte que les bornes CT et TL subissent une atténuation très importante aux courants générés par la capacité parasite du câble (atténuation supérieure à un facteur 10).The input terminals CT and TL of the electronic control circuit 66 are practically insensitive to the capacitive currents likely to appear on a very long connection cable connecting the contacts 76, 74 to the corresponding terminals CT, TL. The voltage VN between the supply terminal N and the earth of the electronic circuit 66 is constituted by a periodic signal with positive half-waves, determined by a diode 78 of the rectifier bridge 77. The leakage capacity of the connecting cable is positively charged at a value substantially equal to the average voltage of VN. In the absence of control signals applied to the terminals CT, TL, the voltage at the input of the inverter 102 of the logic circuit 84, and of the inverter 86 of the monostable flip-flop 82 is close to zero. As a result, the CT and TL terminals undergo very significant attenuation at the currents generated by the parasitic capacitance of the cable (attenuation greater than a factor of 10).

Claims (8)

1. Multipole breaking device with electric remote control, comprising:
- a breaking device per pole (12, 14) equipped with a bistable mobile main contact (33) which can move between two closing and opening positions,
- a first automatic tripping mechanism (38) cooperating with a trip release to move the mobile main contact (33) to the open position in the event of a fault occuring,
- a first manual device (40) for resetting the first tripping mechanism,
- a remote control unit (16) comprising an electromagnetic actuator (36) associated with a second mechanism (34) mechanically linked with the mobile main contact (33) of each pole (12, 14),
- a second manual device (60) coupled to the second mechanism (34) to authorize manual opening and closing of said mobile main contact (33), characterized in that the remote control unit (16) comprises in combination:
- an electronic circuit (66) designed to control excitation of the electromagnet (36) in such a way as to bring about in the set position of the first mechanism (38) a status change of the bistable mobile contact (33) on each control pulse applied to a static switch (80) connected in the electromagnet power supply circuit (36),
- a mobile main contact (33) position detector (98),
- a first input terminal (TL) assigned to a first control of the electronic circuit (66) by pulses,
- a second input terminal (CT) associated with a second mixed control of said electronic circuit (66), said second control being designed, according to the active or inactive status of a selector (S) either switching the position detector (98) into or out of the circuit, respectively for a logic control by a hold signal or for a pulse control decoupled from said first control.
2. Breaking device according to claim 1, characterized in that the electronic circuit (66) controlling the electromagnet (36) comprises a sequential logic circuit (84) sensitive to the status of the control signal applied to the second input terminal (CT), and to the status of the detector (98) in the active position of the selector (S), and that time delay or shaping means modify the internal status of the logic circuit (84) by making the detector (98) signal passive following a forced opening or closing operation by the second manual device (60).
3. Breaking device according to claim 2, characterized in that the remote control unit (16) has in addition two power supply terminals (P, N) connected to an alternating or direct voltage source (72) by conductors (68, 70), and the first input terminal (TL) and the second input terminal (CT) are connected externally to the same potential by means of control contacts (74, 76).
4. Breaking device according to claim 2 or 3, characterized in that the sequential logic circuit (84) time delay means are formed by a derivative device (116, 118) designed to derive the control signal applied to the second input terminal (CT).
5. Breaking device according to claim 4, characterized in that the sequential logic circuit (84) comprises:
- an input changeover (102) internally connected with the second input terminal (CT),
- a first logic NAND gate (108) having an input (E1) connected to the output of the input changeover (102) by means of an auxiliary changeover (106), and another input (E2) connected to the detector (98) in the active position of the selector (S),
- a second logic NAND gate (110) having an input (E2) connected to the output of the input changeover (102), and an output (E4) connected to the selector (S) by means of an auxiliary changeover (115),
- a third logic NAND gate (120) having inputs connected to the respective outputs of the first and second logic gates (108, 110),
- said derivative device comprising a first derivative circuit (116) connected between the auxiliary changeover (106) and the input (E1) of the first logic NAND gate (108) and a second derivative circuit (118) inserted between the input changeover (102) and the input (E3) of the second logic NAND gate (110).
6. Breaking device according to claim 5, characterized in that the electronic circuit (66) comprises in addition a monostable element (82) having an output connected to the control electrode of a static switch (80) and an input simultaneously controlled by the control pulse applied to the first input terminal (TL) and by the status of the output of the third logic NAND gate (120) of the sequential logic circuit (84).
7. Breaking device according to claim 5 or 6, characterized in that each derivative circuit (116, 118) comprises a capacitor (C1, C2) connected in series in the circuit linking the input changeover (102) with the corresponding input (E1, E3) of the first and second gates (108, 110) and a resistor (R1, R2) and a diode (D1, D2) assembly, connected in parallel between said input (E1, E3) and the ground.
8. Breaking device according to claim 3, characterized in that the first input terminal (TL) and the second input terminal (CT) of the electronic circuit (66) are arranged in such a way as to be insensitive to the capacitive currents generated by an interference capacity of a connecting cable of great length connecting respectively the contacts (76, 74) to the corresponding terminal (CT, CL).
EP86400544A 1985-03-26 1986-03-14 Multiphase interrupting device with remote control Expired EP0199612B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86400544T ATE44632T1 (en) 1985-03-26 1986-03-14 MULTI-POLE SWITCHING DEVICE WITH REMOTE CONTROL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8504620 1985-03-26
FR8504620A FR2579821B1 (en) 1985-03-26 1985-03-26 MULTIPOLAR REMOTE CUTTING APPARATUS

Publications (2)

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EP0199612A1 EP0199612A1 (en) 1986-10-29
EP0199612B1 true EP0199612B1 (en) 1989-07-12

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EP86400544A Expired EP0199612B1 (en) 1985-03-26 1986-03-14 Multiphase interrupting device with remote control

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US (1) US4714976A (en)
EP (1) EP0199612B1 (en)
JP (1) JPH0831294B2 (en)
AT (1) ATE44632T1 (en)
AU (1) AU588167B2 (en)
CA (1) CA1247729A (en)
DE (1) DE3664395D1 (en)
ES (1) ES8702735A1 (en)
FR (1) FR2579821B1 (en)
PT (1) PT82260B (en)
ZA (1) ZA862184B (en)

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FR2637414B1 (en) * 1988-09-30 1996-04-05 Merlin Gerin REMOTE CONTROL POWER CUTTING APPARATUS
FR2653592B1 (en) * 1989-10-20 1991-12-20 Merlin Gerin DEVICE FOR CONTROLLING A REMOTE SWITCH.
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Also Published As

Publication number Publication date
EP0199612A1 (en) 1986-10-29
ZA862184B (en) 1986-12-30
ES8702735A1 (en) 1987-01-16
PT82260B (en) 1990-04-30
AU588167B2 (en) 1989-09-07
JPS61281415A (en) 1986-12-11
ATE44632T1 (en) 1989-07-15
CA1247729A (en) 1988-12-28
US4714976A (en) 1987-12-22
AU5524986A (en) 1986-10-02
JPH0831294B2 (en) 1996-03-27
FR2579821A1 (en) 1986-10-03
PT82260A (en) 1986-04-01
DE3664395D1 (en) 1989-08-17
ES553173A0 (en) 1987-01-16
FR2579821B1 (en) 1987-05-15

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