EP0372449B1 - Operating device for a circuit breaker - Google Patents

Operating device for a circuit breaker Download PDF

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Publication number
EP0372449B1
EP0372449B1 EP89122314A EP89122314A EP0372449B1 EP 0372449 B1 EP0372449 B1 EP 0372449B1 EP 89122314 A EP89122314 A EP 89122314A EP 89122314 A EP89122314 A EP 89122314A EP 0372449 B1 EP0372449 B1 EP 0372449B1
Authority
EP
European Patent Office
Prior art keywords
drive mechanism
shaft
fixed
circuit breaker
trigger
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
EP89122314A
Other languages
German (de)
French (fr)
Other versions
EP0372449A1 (en
Inventor
Edmond Thuries
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEC Alsthom SA filed Critical GEC Alsthom SA
Priority to AT89122314T priority Critical patent/ATE104468T1/en
Publication of EP0372449A1 publication Critical patent/EP0372449A1/en
Application granted granted Critical
Publication of EP0372449B1 publication Critical patent/EP0372449B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3094—Power arrangements internal to the switch for operating the driving mechanism using spring motor allowing an opening - closing - opening [OCO] sequence
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • H01H3/3026—Charging means in which the closing spring charges the opening spring or vice versa
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3031—Means for locking the spring in a charged state
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/11—Tripping mechanism

Definitions

  • the present invention relates to a circuit breaker control, in particular for high and very high voltage circuit breakers.
  • circuit breakers for the operation of circuit breakers, and in particular for carrying out the so-called OFO cycle (opening, followed by rapid reclosing, followed by opening), controls of the mechanical (spring), pneumatic or hydraulic type.
  • a mechanical control is described for example in U.S. Patent No. 4 240 300.
  • This document discloses a control for operating a circuit breaker by rotating a main shaft of maneuver, comprising a first trigger spring, a second closing spring , a resetting motor, the springs being arranged to cause by their expansion a rotation of 180 ° of the main shaft, the expansion of the springs being controlled by a movement of a member which therefore constitutes a maneuverable control member in n ' exerting that reduced effort.
  • An object of the invention is to use a low power control already carried out and to adapt it to carry out a circuit breaker control of high power but of very low cost price.
  • the subject of the invention is a control for the operation of a circuit breaker by the rotation of the main operating shaft, comprising a control of a pilot circuit breaker of power significantly less than that required for the operation of said circuit breaker, associated with an assembly comprising a first tripping spring, a second engagement spring and a resetting motor, said springs being arranged to cause by their rotation a 180 degree rotation of said main shaft, the expansion of the springs being controlled by a movement of an output member of said pilot control, characterized in that it comprises a fixed frame supporting the main control shaft, a first arm secured to said main shaft at one end of which is fixed a first end of said trigger spring, a second end of which is fixed to the frame, and a second arm linked in rotation to said main shaft by a freewheel member, allowing said shaft only one direction of rotation when it is triggered and when it 'engagement, said engagement spring being fixed between the end of said second arm and a fixed point of the frame, the d them arms having a position in which the springs are tension
  • the block referenced 1 shows diagrammatically a command for a circuit breaker of the conventional type, either mechanical, hydraulic or pneumatic, of known type.
  • this command has a much lower power than that which is necessary to actuate the circuit breaker to be operated.
  • This command serves as a pilot for a mechanism which will be described later and which is capable of storing and restoring the necessary energy.
  • the pilot control can perform a maneuver corresponding to the opening or tripping (0) of the circuit breaker, which takes the form of a rotation in the direction of arrow f1 of a pilot shaft 2; an operation corresponding to the closing or latching (F) of the circuit breaker takes the form of a rotation of the shaft 2 in the opposite direction (arrow f2).
  • the pilot shaft is thus used to pilot a mechanism capable of supplying sufficient power for the operation of the circuit breaker considered.
  • the mechanism comprises a fixed frame 3 supporting a shaft 4 controlling the operating members, not shown of the circuit breaker.
  • a first arm 5 On the shaft 4 is fixed a first arm 5, one end of which serves as a point of attachment to a spring 6, said trigger spring by means of a rod 6A.
  • the arm 5 In the position of the figure, the arm 5 is in the high position and the spring is tensioned, having stored sufficient energy for triggering.
  • the shaft 4 carries, by means of a ball bearing 7, a sleeve 8 secured to a toothed wheel 9.
  • a freewheel type member 10, between the shaft 4 and the sleeve 8, allows the drive of the shaft 4 in the direction of the arrow F1 when the wheel 9 is driven in the same direction and prohibits all movements in the opposite direction of the shaft 4 and of the sleeve 8.
  • An arm 11 is integral with the wheel 9 and the sleeve 8.
  • a rod 12A to which is attached a first end of a spring 12, the other end of which is fixed to the base of the frame 3.
  • the arm 11 is in the high position and the spring 12 is tensioned, having stored sufficient energy to simultaneously ensure the circuit breaker is engaged and the trigger spring 5 is reset.
  • the toothed wheel 9 is connected by a chain 13 to a reset motor 14.
  • the wheel 9 rotates in the direction of the arrow F2, causing the arms 5 and 11 to rotate.
  • the arm 11 is provided with a roller stop 16 cooperating with a cam 17 (engagement stop) secured to the pilot shaft 2.
  • a fixed stop 18 prevents the arm from rotating in the direction opposite to the arrow F1.
  • the arm 5 carries a roller stop 20 cooperating with a lever 29 (trigger stop) forming part of a small mechanical assembly comprising a small lever 22 secured to the pilot shaft and articulated at 23 to a lever 24 articulated at 25 to a port 26 of a lever 27 having a fixed axis 28, and the lever 29 of fixed axis 30 articulated at 31 at one end of the lever 24.
  • a lever 29 trigger stop
  • the lever 22 pivots and drives the lever 24 which pulls the lever 29 which releases the stop 20.
  • the spring 6 relaxes causing the arm 5 which rotates the shaft 4 180 degrees in the direction of the arrow F1, which causes the circuit breaker to open.
  • the pilot command then receives a closing order which causes the shaft to rotate in the direction of the arrow f2.
  • the cam 17 then pushes the roller stop 16 against the arm 11 which, passing its neutral position, is driven by the rebound of the spring 12.
  • the arm 11 rotates the shaft 4 in 180 degrees in the direction of the arrow F, which causes the circuit breaker to reset.
  • a stop 32 for example made of elastomer, absorbs the shock of contact of the roller 20 with the lever 29.
  • the spring 12 To allow the resetting of the spring 6, the spring 12 must have a higher force.
  • the two arms 5 and 11 are then in the low position.
  • a rearming of the control is then carried out thanks to the motor 14.
  • the latter causes the wheel 9 to rotate 180 degrees in the direction of the arrow F2, which produces the rearming of the spring 12 which comes into abutment on the abutment 18 and the 180 degree rotation of the shaft 4 which rotates the arm 5 by resetting the spring 6.
  • roller 20 abuts on lever 29 which has taken up the position of FIG. 2, because at the same time the pilot control 1 has been reset.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Vehicle Body Suspensions (AREA)
  • Switches With Compound Operations (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Control Of Electric Motors In General (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to controlling a circuit breaker by means of a drive mechanism circuit for operating a circuit breaker by rotating a main operating shaft (4). The drive mechanism comprises a trigger circuit breaker drive mechanism (1) delivering considerably less power than that required for operating the circuit breaker, and associated with an assembly including a disengagement first spring (6), an engagement second spring (12), and a recocking motor (14) for recocking the springs which are disposed, on being released, to drive the main shaft (4) through 180 DEG , with the release of the springs being controlled by motion of an outlet member (2) of the trigger drive mechanism (1). The invention is applicable to the operating circuit breakers.

Description

La présente invention concerne une commande pour disjoncteur, en particulier pour disjoncteur à haute et très haute tension.The present invention relates to a circuit breaker control, in particular for high and very high voltage circuit breakers.

On connaît, pour la manoeuvre de disjoncteurs, et en particulier pour la réalisation de cycle dit OFO (ouverture, suivie de refermeture rapide, suivie d'ouverture), des commandes de type mécanique (à ressorts), pneumatique ou hydraulique.Known for the operation of circuit breakers, and in particular for carrying out the so-called OFO cycle (opening, followed by rapid reclosing, followed by opening), controls of the mechanical (spring), pneumatic or hydraulic type.

Une commande mécanique est décrite par exemple dans le brevet américain no 4 240 300. Ce document révèle une commande pour manoeuvrer un disjoncteur par la rotation d'un arbre principal de manoeuvre, comprenant un premier ressort de déclenchement, un second ressort d'enclenchement, un moteur de réarmement, les ressorts étant agencés pour provoquer par leur détente une rotation de 180° de l'arbre principal, la détente des ressorts étant commandée par un mouvement d'un organe qui constitue donc un organe de commande manoeuvrable en n'exerçant qu'un effort réduit.A mechanical control is described for example in U.S. Patent No. 4 240 300. This document discloses a control for operating a circuit breaker by rotating a main shaft of maneuver, comprising a first trigger spring, a second closing spring , a resetting motor, the springs being arranged to cause by their expansion a rotation of 180 ° of the main shaft, the expansion of the springs being controlled by a movement of a member which therefore constitutes a maneuverable control member in n ' exerting that reduced effort.

A ce jour, les commandes réalisées mettent en oeuvre une énergie de l'ordre de 3000 Joules au maximum ; les disjoncteurs des dernières générations nécessitent l'emploi de commandes mettant en oeuvre des énergies beaucoup plus grandes, de l'ordre de dix fois les énergies maximales mises en jeu actuellement.To date, the orders made use an energy of the order of 3000 Joules at most; circuit breakers of the latest generation require the use of controls using much larger energies, of the order of ten times the maximum energies currently used.

L'étude, la mise au point et la réalisation d'une nouvelle commande de si forte puissance nécessiteraient des investissements considérables.The study, the development and the realization of a new command of such a high power would require considerable investments.

Un but de l'invention est d'utiliser une commande de faible puissance déjà réalisée et de l'adapter pour réaliser une commande de disjoncteur de forte puissance mais de prix de revient très faible.An object of the invention is to use a low power control already carried out and to adapt it to carry out a circuit breaker control of high power but of very low cost price.

L'invention a pour objet une commande pour la manoeuvre d'un disjoncteur par la rotation d'arbre principal de manoeuvre, comprenant une commande de disjoncteur pilote de puissance notablement inférieure à celle nécessitée pour la manoeuvre dudit disjoncteur, associée à un ensemble comprenant un premier ressort de déclenchement, un second ressort d'enclenchement et un moteur de réarmement, lesdits ressorts étant agencés pour entraîner par leur détente une rotation de 180 degrés dudit arbre principal, la détente des ressorts étant commandée par un mouvement d'un organe de sortie de ladite commande pilote, caractérisée en ce qu'elle comprend un bâti fixe supportant l'arbre principal de commande, un premier bras solidaire dudit arbre principal à une extrémité duquel est fixée une première extrémité dudit ressort de déclenchement dont une seconde extrémité est fixée au bâti, et un second bras lié en rotation audit arbre principal par un organe de roue libre, n'autorisant audit arbre qu'un seul sens de rotation au déclenchement et à l'enclenchement, ledit ressort d'enclenchement étant fixé entre l'extrémité dudit second bras et un point fixe du bâti, les deux bras ayant une position dans laquelle les ressorts sont tendus, les extrémités des bras venant en butée sur une butée de déclenchement et une butée d'enclenchement dont les effacements respectifs commandés par ledit mouvement dudit organe de sortie de ladite commande pilote.The subject of the invention is a control for the operation of a circuit breaker by the rotation of the main operating shaft, comprising a control of a pilot circuit breaker of power significantly less than that required for the operation of said circuit breaker, associated with an assembly comprising a first tripping spring, a second engagement spring and a resetting motor, said springs being arranged to cause by their rotation a 180 degree rotation of said main shaft, the expansion of the springs being controlled by a movement of an output member of said pilot control, characterized in that it comprises a fixed frame supporting the main control shaft, a first arm secured to said main shaft at one end of which is fixed a first end of said trigger spring, a second end of which is fixed to the frame, and a second arm linked in rotation to said main shaft by a freewheel member, allowing said shaft only one direction of rotation when it is triggered and when it 'engagement, said engagement spring being fixed between the end of said second arm and a fixed point of the frame, the d them arms having a position in which the springs are tensioned, the ends of the arms abutting on a triggering stop and an interlocking stop whose respective erasures controlled by said movement of said output member of said pilot control.

L'invention sera bien comprise par la description donnée ci-après d'un mode préféré de réalisation de l'invention, en référence au dessin annexé dans lequel :

  • la figure 1 est une vue schématique en perspective de la commande de l'invention ;
  • les figures 2 et 3 sont des schémas expliquant le déclenchement du disjoncteur.
The invention will be better understood from the description given below of a preferred embodiment of the invention, with reference to the appended drawing in which:
  • Figure 1 is a schematic perspective view of the control of the invention;
  • Figures 2 and 3 are diagrams explaining the tripping of the circuit breaker.

Dans la figure 1, le bloc référencé 1 schématise une commande pour disjoncteur de type classique soit mécanique, soit hydraulique, soit pneumatique, de type connu. Par hypothèse cette commande a une puissance bien inférieure à celle qui est nécessaire pour actionner le disjoncteur à manoeuvrer. C'est pourquoi cette commande sert de pilote à un mécanisme qui va être décrit plus loin et qui est capable d'emmagasiner et de restituer l'énergie nécessaire. La commande pilote peut effectuer une manoeuvre correspondant à l'ouverture ou déclenchement (0) du disjoncteur, qui se concrétise par une rotation dans le sens de la flèche f1 d'un arbre pilote 2 ; une manoeuvre correspondant à la fermeture ou enclenchement (F) du disjoncteur se concrétise par une rotation de l'arbre 2 dans le sens inverse (flèche f2).In FIG. 1, the block referenced 1 shows diagrammatically a command for a circuit breaker of the conventional type, either mechanical, hydraulic or pneumatic, of known type. By assumption, this command has a much lower power than that which is necessary to actuate the circuit breaker to be operated. This is why this command serves as a pilot for a mechanism which will be described later and which is capable of storing and restoring the necessary energy. The pilot control can perform a maneuver corresponding to the opening or tripping (0) of the circuit breaker, which takes the form of a rotation in the direction of arrow f1 of a pilot shaft 2; an operation corresponding to the closing or latching (F) of the circuit breaker takes the form of a rotation of the shaft 2 in the opposite direction (arrow f2).

L'arbre pilote est ainsi utilisé pour piloter un mécanisme capable de fournir une puissance suffisante à la manoeuvre du disjoncteur considéré.The pilot shaft is thus used to pilot a mechanism capable of supplying sufficient power for the operation of the circuit breaker considered.

Le mécanisme comprend un bâti fixe 3 supportant un arbre 4 commandant les organes de manoeuvre, non représentés du disjoncteur.The mechanism comprises a fixed frame 3 supporting a shaft 4 controlling the operating members, not shown of the circuit breaker.

Sur l'arbre 4 est fixé un premier bras 5, dont une extrémité sert de point d'attache à un ressort 6, dit ressort de déclenchement par l'intermédiaire d'une tige 6A.On the shaft 4 is fixed a first arm 5, one end of which serves as a point of attachment to a spring 6, said trigger spring by means of a rod 6A.

Dans la position de la figure, le bras 5 est en position haute et le ressort est tendu, ayant emmaganisé une énergie suffisante pour le déclenchement.In the position of the figure, the arm 5 is in the high position and the spring is tensioned, having stored sufficient energy for triggering.

L'arbre 4 porte, par l'intermédiaire d'une palier à bille 7, un manchon 8 solidaire d'une roue dentée 9. Un organe type roue libre 10, entre l'arbre 4 et le manchon 8, permet l'entraînement de l'arbre 4 dans le sens de la flèche F1 lorsque la roue 9 est animée d'un mouvement dans le même sens et interdit tous mouvements en sens inverse de l'arbre 4 et du manchon 8.The shaft 4 carries, by means of a ball bearing 7, a sleeve 8 secured to a toothed wheel 9. A freewheel type member 10, between the shaft 4 and the sleeve 8, allows the drive of the shaft 4 in the direction of the arrow F1 when the wheel 9 is driven in the same direction and prohibits all movements in the opposite direction of the shaft 4 and of the sleeve 8.

Un bras 11 est solidaire de la roue 9 et du manchon 8.An arm 11 is integral with the wheel 9 and the sleeve 8.

A l'extrémité du bras 11, est fixée une tige 12A à laquelle est attachée une première extrémité d'un ressort 12 dont l'autre extrémité est fixée à la base du bâti 3. Dans la position de la figure, le bras 11 est en position haute et le ressort 12 est tendu, ayant emmagasiné une énergie suffisante pour assurer simultanément l'enclenchement du disjoncteur et le réarmement du ressort de déclenchement 5.At the end of the arm 11, is fixed a rod 12A to which is attached a first end of a spring 12, the other end of which is fixed to the base of the frame 3. In the position of the figure, the arm 11 is in the high position and the spring 12 is tensioned, having stored sufficient energy to simultaneously ensure the circuit breaker is engaged and the trigger spring 5 is reset.

La roue dentée 9 est reliée par une chaîne 13 à un moteur de réarmement 14.The toothed wheel 9 is connected by a chain 13 to a reset motor 14.

Lors du réarmement, la roue 9 tourne dans le sens de la flèche F2, entraînant en rotation les bras 5 et 11.During resetting, the wheel 9 rotates in the direction of the arrow F2, causing the arms 5 and 11 to rotate.

Le bras 11 est muni d'une butée à galet 16 coopérant avec une came 17 (butée d'enclenchement) solidaire de l'arbre pilote 2.The arm 11 is provided with a roller stop 16 cooperating with a cam 17 (engagement stop) secured to the pilot shaft 2.

Une butée fixe 18 empêche le bras de tourner dans le sens opposé à la flèche F1.A fixed stop 18 prevents the arm from rotating in the direction opposite to the arrow F1.

Le bras 5 porte une butée à galet 20 coopérant avec un levier 29 (butée de déclenchement) faisant partie d'un petit ensemble mécanique comprenant un petit levier 22 solidaire de l'arbre pilote et articulé en 23 à un levier 24 articulé en 25 à une lumière 26 d'un levier 27 ayant un axe fixe 28, et le levier 29 d'axe fixe 30 articulé en 31 à une extrémité du levier 24.The arm 5 carries a roller stop 20 cooperating with a lever 29 (trigger stop) forming part of a small mechanical assembly comprising a small lever 22 secured to the pilot shaft and articulated at 23 to a lever 24 articulated at 25 to a port 26 of a lever 27 having a fixed axis 28, and the lever 29 of fixed axis 30 articulated at 31 at one end of the lever 24.

Le fonctionnement de la commande est le suivant :

  • lorsqu'un ordre d'ouverture du disjoncteur est donné par le système de protection du réseau ou de la ligne dans lequel le dijoncteur est inséré, la commande pilote agit, ce qui provoque une rotation de l'arbre 2 dans le sens de la flèche f1.
The operation of the control is as follows:
  • when an order to open the circuit breaker is given by the network or line protection system in which the circuit breaker is inserted, the pilot control acts, which causes rotation of the shaft 2 in the direction of the arrow f1.

Le levier 22 pivote et entraîne le levier 24 qui tire le levier 29 lequel dégage la butée 20.The lever 22 pivots and drives the lever 24 which pulls the lever 29 which releases the stop 20.

Le ressort 6 se détend entraînant le bras 5 qui fait pivoter l'arbre 4 de 180 degrés dans le sens de la flèche F1, ce qui provoque l'ouverture du disjoncteur.The spring 6 relaxes causing the arm 5 which rotates the shaft 4 180 degrees in the direction of the arrow F1, which causes the circuit breaker to open.

On notera qu'au cours de cette manoeuvre, le levier 27 pivote autour de l'axe 25 dans le sens de la flèche f3 et vient percuter le galet 20, ce qui accélère le mouvement de la tige 6A et par voie de conséquence la rotation de l'arbre 4 et la manoeuvre d'ouverture du disjoncteur (figure 3).It will be noted that during this maneuver, the lever 27 pivots about the axis 25 in the direction of the arrow f3 and strikes the roller 20, which accelerates the movement of the rod 6A and consequently the rotation of shaft 4 and the opening operation of the circuit breaker (figure 3).

La commande pilote reçoit ensuite un ordre de fermeture qui provoque une rotation de l'arbre dans le sens de la flèche f2. La came 17 pousse alors la butée à galet 16 contre le bras 11 qui, passant son point mort, est entraîné par la détente du ressort 12. Le bras 11 entraîne en rotation de 180 degrés l'arbre 4, dans le sens de la flèche F, ce qui provoque le réenclenchement du disjoncteur.The pilot command then receives a closing order which causes the shaft to rotate in the direction of the arrow f2. The cam 17 then pushes the roller stop 16 against the arm 11 which, passing its neutral position, is driven by the rebound of the spring 12. The arm 11 rotates the shaft 4 in 180 degrees in the direction of the arrow F, which causes the circuit breaker to reset.

Simultanément, l'arbre 4 entraîne en rotation le bras 5 ce qui provoque le réarmement du ressort 6. Une butée 32 par exemple en élastomère, amortit le choc du contact du galet 20 avec le levier 29.Simultaneously, the shaft 4 rotates the arm 5, which causes the spring 6 to be reset. A stop 32, for example made of elastomer, absorbs the shock of contact of the roller 20 with the lever 29.

Pour permettre le réarmement du ressort 6, le ressort 12 doit avoir une force supérieure.To allow the resetting of the spring 6, the spring 12 must have a higher force.

Un ordre d'ouverture du disjoncteur (pour terminer le cycle OFO) provoque une rotation de l'arbre pilote dans le sens de la flèche f1, ce qui comme précédemment entraîne la détente du ressort 6 et la rotation de l'arbre principal 4.An order to open the circuit breaker (to complete the OFO cycle) causes the pilot shaft to rotate in the direction of arrow f1, which, as before, causes the spring 6 to relax and the main shaft 4 to rotate.

Les deux bras 5 et 11 sont alors en position basse. Un réarmement de la commande est alors effectué grâce au moteur 14. Ce dernier fait exécuter à la roue 9 une rotation de 180 degrés dans le sens de la flèche F2, ce qui produit le réarmement du ressort 12 qui vient en butée sur la butée 18 et la rotation de 180 degrés de l'arbre 4 qui fait tourner le bras 5 en réarmant le ressort 6.The two arms 5 and 11 are then in the low position. A rearming of the control is then carried out thanks to the motor 14. The latter causes the wheel 9 to rotate 180 degrees in the direction of the arrow F2, which produces the rearming of the spring 12 which comes into abutment on the abutment 18 and the 180 degree rotation of the shaft 4 which rotates the arm 5 by resetting the spring 6.

Le galet 20 vient en butée sur levier 29 qui a repris la position de la figure 2, car en même temps la commande pilote 1 a été réarmée.The roller 20 abuts on lever 29 which has taken up the position of FIG. 2, because at the same time the pilot control 1 has been reset.

Grâce à l'invention on réalise à peu de frais une commande de disjoncteur de grande puissance.Thanks to the invention, a high power circuit breaker control is produced inexpensively.

Claims (6)

  1. A drive circuit for operating a circuit breaker by rotating a main operating shaft (4), comprising a trigger circuit breaker drive mechanism (1) delivering considerably less power than that required for operating said circuit breaker, and associated with an assembly including a disengagement first spring (6), an engagement second spring (12), and a recocking motor (14) for recocking said springs which are disposed, on being released, to drive said main shaft (4) through 180°, with the release of the springs being controlled by motion of an outlet member (2) of said trigger drive mechanism (1), the drive mechanism being characterized in that it comprises a fixed frame (3) supporting the main drive shaft (4), a first arm (5) fixed to said main shaft (5) and having a first end of said disengagement spring (6) fixed thereto, with the other end of said disengagement spring (6) being fixed to the frame (3), at a second arm (11) constrained to rotate with said main shaft (4) by a freewheel mechanism (10) allowing said shaft to rotate in one direction only both for disengagement and for engagement, said engagement spring (12) being fixed between the end of said second arm (11) and a fixed point on the frame (3), the two arms having a position in which both springs are taut, with the ends of the arms coming into abutment against a disengagement abutment (29) and an engagement abutment (17) which abutments are respectively retracted by said motion of the outlet member (2) of said trigger drive mechanism (1).
  2. A drive mechanism according to claim 1, characterized in that the second arm (11) is fixed to a recocking wheel (9) rotated by the recocking motor (14).
  3. A drive mechanism according to claim 1 or 2, characterized in that said outlet member of said trigger drive mechanism (1) is a trigger shaft (2).
  4. A drive mechanism according to claim 3, characterized in that the disengagement abutment is constituted by a first crank (29) co-operating with a wheel (20) fixed to the end of the first arm (5), said first crank (29) having a stationary axis (30) and being articulated to a connecting rod (24) itself articulated to a second crank (22) which is fixed to the trigger shaft (2).
  5. A drive mechanism according to claim 4, characterized in that a lever (27) having a stationary axis of rotation (28) is articulated to said connecting rod (24), with the end of said lever (27) being capable of imparting a shock to said wheel (20) during rotation of said trigger shaft (2) at the beginning of a disengagement operation of the circuit breaker.
  6. A drive mechanism according to any one of claims 3 to 5, characterized in that the engagement abutment is constituted by a cam (17) fixed to said trigger shaft (2).
EP89122314A 1988-12-09 1989-12-04 Operating device for a circuit breaker Expired - Lifetime EP0372449B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89122314T ATE104468T1 (en) 1988-12-09 1989-12-04 CONTROL DEVICE FOR SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8816220 1988-12-09
FR8816220A FR2640424A1 (en) 1988-12-09 1988-12-09 CIRCUIT BREAKER CONTROL

Publications (2)

Publication Number Publication Date
EP0372449A1 EP0372449A1 (en) 1990-06-13
EP0372449B1 true EP0372449B1 (en) 1994-04-13

Family

ID=9372773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122314A Expired - Lifetime EP0372449B1 (en) 1988-12-09 1989-12-04 Operating device for a circuit breaker

Country Status (9)

Country Link
US (1) US5107715A (en)
EP (1) EP0372449B1 (en)
JP (1) JPH02203058A (en)
CN (1) CN1020523C (en)
AT (1) ATE104468T1 (en)
BR (1) BR8906352A (en)
CA (1) CA2004937C (en)
DE (1) DE68914607T2 (en)
FR (1) FR2640424A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666684B1 (en) * 1990-09-10 1996-08-23 Alsthom Gec CIRCUIT BREAKER CONTROL.
US5459631A (en) * 1991-03-28 1995-10-17 Siemens Energy & Automation, Inc. Electronic charging motor controller
US5224590A (en) * 1991-11-06 1993-07-06 Westinghouse Electric Corp. Circuit interrupter having improved operating mechanism
FR2696866B1 (en) * 1992-10-13 1994-12-02 Merlin Gerin Three-position switch actuation mechanism.
JP3831802B2 (en) * 1996-05-10 2006-10-11 株式会社日立製作所 Circuit breaker fluid pressure drive
FR2766959B1 (en) * 1997-07-31 1999-09-24 Gec Alsthom T & D Ag QUICK CONTROL DEVICE FOR A HIGH VOLTAGE CONNECTION APPARATUS, IN PARTICULAR AN EARTH ISOLATOR
FR2766960B1 (en) * 1997-07-31 1999-09-24 Gec Alsthom T & D Ag QUICK CONTROL DEVICE FOR A HIGH VOLTAGE CONNECTION APPARATUS, IN PARTICULAR AN EARTH ISOLATOR
JP3861832B2 (en) * 2003-03-11 2006-12-27 株式会社日立製作所 Switch
DE50307589D1 (en) 2003-09-13 2007-08-09 Abb Technology Ag DEVICE FOR OPERATING AN ELECTRIC SWITCH
EP2093780B1 (en) * 2008-02-22 2014-11-05 ABB Technology AG A spring drive unit, an operating device for an electrical switching apparatus, and method for charging and/or discharging a spring in an operating device for an electrical switching apparatus
WO2014173732A1 (en) * 2013-04-25 2014-10-30 Siemens Aktiengesellschaft Drive mechanism for circuit breaker
CN103208379A (en) * 2013-04-28 2013-07-17 苏州市华东电网电气有限公司 Operation mechanism of electric switch cabinet
WO2017024330A1 (en) * 2015-08-12 2017-02-16 Kentan Pty Ltd Circuit breaker racking system
GB2557582A (en) 2016-09-14 2018-06-27 Eaton Ind Netherlands Bv Mechanism for opening and closing a circuit breaker
WO2018115026A1 (en) 2016-12-23 2018-06-28 Eaton Industries (Austria) Gmbh Mechanism for opening and closing a circuit breaker
CN107622896A (en) * 2017-10-25 2018-01-23 宝鸡圭彬光电设备有限公司 A kind of circuit protection device based on bar linkage structure
GB2628148A (en) * 2023-03-16 2024-09-18 Eaton Intelligent Power Ltd Electric switching device with improved actuation mechanism

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DE469648C (en) * 1928-12-18 Voigt & Haeffner Akt Ges Energy storage drive for electrical switches
DE2236788B2 (en) * 1972-07-24 1975-05-28 Siemens Ag, 1000 Berlin Und 8000 Muenchen Drive device for electrical switchgear
US3845433A (en) * 1973-09-28 1974-10-29 Arrow Hart Inc Switch operator with tripping means
DE2717958B2 (en) * 1977-04-20 1979-06-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Drive device for electrical switching devices with pressure contacts
JPS5429067A (en) * 1977-08-08 1979-03-03 Mitsubishi Electric Corp Control mechanism
JPS5453271A (en) * 1977-10-03 1979-04-26 Fuji Electric Co Ltd Control device for high speed reeclosing circuit breaker
FR2589001A1 (en) * 1985-10-23 1987-04-24 Alsthom DEVICE FOR MANEUVERING A CIRCUIT BREAKER AND CIRCUIT BREAKER PROVIDED WITH SAID DEVICE
JPS6335048A (en) * 1986-07-30 1988-02-15 Omron Tateisi Electronics Co Card type telephone set

Also Published As

Publication number Publication date
EP0372449A1 (en) 1990-06-13
DE68914607T2 (en) 1994-07-21
CN1020523C (en) 1993-05-05
DE68914607D1 (en) 1994-05-19
JPH02203058A (en) 1990-08-13
US5107715A (en) 1992-04-28
FR2640424A1 (en) 1990-06-15
CA2004937A1 (en) 1990-06-09
CA2004937C (en) 1994-02-01
BR8906352A (en) 1990-08-21
CN1043221A (en) 1990-06-20
ATE104468T1 (en) 1994-04-15

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