EP2037470A1 - Activation of an alternator load-break switch by a group of one main shaft and several secondary shafts - Google Patents

Activation of an alternator load-break switch by a group of one main shaft and several secondary shafts Download PDF

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Publication number
EP2037470A1
EP2037470A1 EP08164321A EP08164321A EP2037470A1 EP 2037470 A1 EP2037470 A1 EP 2037470A1 EP 08164321 A EP08164321 A EP 08164321A EP 08164321 A EP08164321 A EP 08164321A EP 2037470 A1 EP2037470 A1 EP 2037470A1
Authority
EP
European Patent Office
Prior art keywords
switch
contacts
circuit breaker
accessory
main shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08164321A
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German (de)
French (fr)
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EP2037470B1 (en
Inventor
Xavier Allaire
Philippe Manin
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.)
General Electric Technology GmbH
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Areva T&D SAS
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Publication date
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Publication of EP2037470A1 publication Critical patent/EP2037470A1/en
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Publication of EP2037470B1 publication Critical patent/EP2037470B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/52—Driving mechanisms, i.e. for transmitting driving force to the contacts with means to ensure stopping at intermediate operative positions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6667—Details concerning lever type driving rod arrangements

Definitions

  • the invention relates to a system for breaking and disconnecting an alternator circuit breaker and its associated kinematics.
  • accessory is meant here and in the context of the invention, a secondary shaft that is to say a tree not directly connected to the single command.
  • the main disconnector is actuated over the entire stroke of the shaft main and we operate an accessory shaft on the end of the opening only.
  • the actuation of this shaft can be done by cam, by chain or any other means.
  • the angular travel of this shaft being low, the lever drives a pantograph, or other kinematic, to create a reduction of the race at the secondary disconnect, while maintaining a small footprint (to meet the center distances).
  • the main axis also drives a cam to drive the vacuum bulb whose opening ensures the interruption of the electric arc.
  • This bulb is opened at the beginning of opening so as not to unnecessarily force the insulators when the device is closed (and to risk the creep of these). It is then closed, before the opening of the main contacts, to pass the current. It is then opened, then closed at the end of the race in order to put the potential between the bulb and the secondary disconnector to the potential (Potential for this zone may be made by another device).
  • This cam management system makes it possible to manage radically different races (from 10 to 200 mm, and more if necessary).
  • the accessory lever is connected directly to the reduction device by a single link.
  • the demultiplication device comprises a pantograph.
  • the synchronization means between the first and third cutoff switches comprise on the one hand a cam integral with the main shaft, and on the other hand a connecting lever secured to the accessory shaft and carrying a pin bearing against the cam, the profile of the cam being such that the pin moves only on the final angle of rotation of the main shaft.
  • the cam is provided with a guide groove in which the pin slides, the guide groove having two curved parts of different curvature.
  • the synchronization means between the first and second switches comprise on the one hand another cam connected to the main shaft, and on the other hand another linkage lever secured to the other accessory shaft and carrying another pin bearing against the cam.
  • the other cam may be provided with a guide groove in which the other pin slides, the guide groove having four curved parts of different curvature.
  • the other cam can be connected by a single connecting rod to the main shaft.
  • the second pair of contacts may be in translation along the same axis as that of the first and third pair and the circuit breaker may comprise a double lever, one of which constitutes the other accessory lever and the other constitutes the other link lever
  • the figure 1 is a top view of an embodiment of an alternator disconnect circuit breaker according to the invention.
  • the figure 2 is a side view of the circuit breaker according to the figure 1 .
  • the figure 3 is a longitudinal sectional view along the axis AA of the circuit breaker according to the figure 2 .
  • the figure 3A is an enlarged view of a part of the circuit breaker according to the figure 3 .
  • the alternator disconnecting circuit breaker (D) comprises respectively two disconnecting switches 5, 5a; 12, 12a and a switch 16,17 which extend along the same axis XX '.
  • One of the disconnect switches shown comprises a pair of contacts 12, 12a movable relative to each other in translation.
  • the cutoff switch comprises a pair of contacts 16, 17 also movable relative to each other in translation. This cutoff switch is electrically connected in parallel with the disconnector switch 5,5a.
  • the breaking switch is constituted by a vacuum interrupter.
  • the other disconnector switch comprises a pair of contacts 5.5a movable relative to each other in translation.
  • means 2 are provided; 13, 14, 15; 3, 6, 7, 8, 9, 11 for actuating a movable contact 5, 12, of each isolating switch or of that 16 of the breaking switch.
  • synchronization means 3, 30; 14, 140 allowing, during a given opening maneuver of the circuit breaker, the separation of the contacts 5, 5a from the first isolating switch before the separation of the contacts 16, 17 of the breaking switch, which themselves separate. before the contacts 12,12a of the other disconnect switch do not separate completely.
  • alternator circuit breaker D is intended to couple and actuate by a single command not shown the synchronization and actuation means of the three switches.
  • the actuating means of the disconnector switch 5, 5a comprise at least one main shaft 1 actuated in rotation by the mechanical control. On this shaft 1 is mounted rigidly a main lever 2. The lever 2 is connected by a single intermediate link (not shown) to the main disconnector tube 5.
  • the actuating means of the other disconnector switch 12, 12a comprise at least one accessory shaft 8 parallel to the main shaft 1 and an accessory lever 9 integral with the accessory shaft 8 and one end 90 of which is connected to the movable contact 12 by means of a demultiplication device 10, 11, which is a pantograph in the illustrated embodiment ( figure 3 ).
  • the synchronization means between the two disconnector switches 5,5a, 12,12a are arranged such that, during a given opening operation of the circuit breaker, the accessory shaft 8 is rotated only at a final angle of rotation. of the main shaft 1 to fully separate the pair of contacts 12,12a of the disconnector.
  • the cam 3 guides a roller 7, mounted on a connecting lever 6, the profile of the 3 being such that the roller moves only on the final angle of rotation of the main shaft 1. More exactly, the cam 3 is provided with a guide groove 30 in which the roller 7 slides, the groove guide having two curved portions 30a, 30b of different curvature.
  • This connecting lever 6 as well as the accessory lever 9 are mounted on the accessory shaft 8.
  • the shape of the groove 30 of the cam 3 makes it possible to drive the accessory shaft 8 in rotation for only part of the travel of the main tree.
  • the accessory lever 9 is connected to a single rod 10 which directly actuates a pantograph 11, which itself controls the movement of the tube of the disconnector 12.
  • the means for actuating the cut-off switch or vacuum interrupter 16, 17 comprise at least one other accessory shaft 18 parallel to the main shaft 1 and another accessory lever 150 integral with the other accessory shaft 18 and one of which end is connected directly to the movable contact 16.
  • the synchronization means between the disconnector switch 12, 12a and the switch-off switch 16, 17 are arranged so that, during a given opening maneuver of the circuit breaker, the other accessory shaft 18 is successively rotated or stopped on the full angle of rotation of the main shaft 1 in order successively to close the pair of contacts 16, 17 of the initially open cutoff switch, to open it, to keep it open and then to close it.
  • the guide groove 140 of this other cam 14 has four curved portions 140a, 140b, 140c, 140d of different curvature ( figure 3A ).
  • the other cam 14 is connected directly by a single connecting rod 13 to the main shaft 1.
  • the other link lever 150 and the other accessory lever 151 are made in one piece which is a double lever 15.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The switch (D) has switch-disconnectors including respective movable contacts (5, 5a, 12, 12a) and actuating units actuating the respective contacts and including main and accessory shafts (1, 8) and main and accessory levers (2, 9). The lever (9) has an end connected to the contact (12) by a rod (10) that actuates a demultiplication device i.e. pantograph (11). A synchronizing unit is arranged between the disconnectors such that the shaft (8) is only rotated on a final rotation angle of the shaft (1) during opening of the switch to separate the contacts (12, 12a).

Description

DOMAINE TECHNIQUE ET ART ANTÉRIEURTECHNICAL FIELD AND PRIOR ART

L'invention concerne un système de coupure et de sectionnement d'un disjoncteur d'alternateur et sa cinématique associée.The invention relates to a system for breaking and disconnecting an alternator circuit breaker and its associated kinematics.

On connaît déjà de nombreux système de coupure et de sectionnement d'un disjoncteur d'alternateur.Many systems are already known for cutting and disconnecting an alternator circuit breaker.

On peut citer la solution selon le document DE 100 16 950 .We can mention the solution according to the document DE 100 16 950 .

On peut également citer le disjoncteur sectionneur d'alternateur qui fait l'objet de la demande de brevet FR 0652628 , selon laquelle un actionnement par came cylindrique des deux interrupteurs sectionneurs et de l'interrupteur de coupure est prévu.Another example is the alternator disconnect circuit breaker which is the subject of the patent application. FR 0652628 , according to which a cylindrical cam actuation of the two disconnecting switches and the breaking switch is provided.

Les solutions connues impliquent soit:

  • une masse mobile importante et des efforts importants qui ne permettent pas de garantir un fonctionnement fiable dans le temps,
  • l'insertion d'un arc et/ou d'une résistance dans le circuit de coupure,
  • l'utilisation d'un ressort dans la cinématique d'actionnement pour réaliser l'ouverture du deuxième sectionneur.
    Le but de l'invention est alors de proposer une solution qui vise à pallier tout ou partie des inconvénients mentionnés ci-dessus.
Known solutions involve either:
  • a large mobile mass and significant efforts that do not ensure reliable operation over time,
  • inserting an arc and / or a resistor in the breaking circuit,
  • the use of a spring in the actuation kinematics to achieve the opening of the second disconnector.
    The object of the invention is then to propose a solution that aims to overcome all or some of the disadvantages mentioned above.

EXPOSÉ DE L'INVENTIONSTATEMENT OF THE INVENTION

A cet effet, il est prévu un disjoncteur sectionneur d'alternateur comprenant :

  • un premier interrupteur de sectionnement comprenant une première paire de contacts mobiles l'un par rapport à l'autre en translation,
  • un deuxième interrupteur de coupure comprenant une deuxième paire de contacts mobiles l'un par rapport à l'autre en translation, le deuxième interrupteur étant connecté électriquement en parallèle du premier interrupteur,
  • un troisième interrupteur de sectionnement comprenant une troisième paire de contacts mobiles l'un par rapport à l'autre en translation, le troisième interrupteur étant connecté électriquement en série avec le deuxième interrupteur et en parallèle avec le premier interrupteur,
  • des moyens d'actionnement d'un contact mobile de chaque interrupteur,
  • des moyens de synchronisation permettant, lors d'une manoeuvre d'ouverture donnée du disjoncteur, la séparation des contacts du premier interrupteur avant la séparation des contacts du deuxième interrupteur, qui eux-mêmes se séparent avant que les troisièmes contacts ne se séparent entièrement,
  • les moyens de synchronisation et d'actionnement des trois interrupteurs étant couplés et actionnés eux-mêmes par une commande unique,
  • la première et troisième paires de contacts étant en translation selon le même axe (XX').
For this purpose, there is provided an alternator disconnect circuit breaker comprising:
  • a first disconnecting switch comprising a first pair of movable contacts relative to each other in translation,
  • a second cutoff switch comprising a second pair of movable contacts relative to each other in translation, the second switch being electrically connected in parallel with the first switch,
  • a third disconnecting switch comprising a third pair of movable contacts relative to each other in translation, the third switch being electrically connected in series with the second switch and in parallel with the first switch,
  • means for actuating a movable contact of each switch,
  • synchronization means enabling, during a given opening maneuver of the circuit breaker, the separation of the contacts of the first switch before the separation of the contacts of the second switch, which themselves separate before the third contacts separate completely,
  • the synchronization and actuation means of the three switches being coupled and actuated themselves by a single command,
  • the first and third pairs of contacts being in translation along the same axis (XX ').

Selon l'invention,

  • les moyens d'actionnement du premier interrupteur sectionneur comprennent au moins un arbre principal adapté pour être mis en rotation par la commande unique et un levier principal solidaire de l'arbre principal et dont une extrémité est reliée à l'un des contacts mobiles,
  • les moyens d'actionnement du troisième interrupteur comprennent au moins un arbre accessoire parallèle à l'arbre principal et un levier accessoire solidaire de l'arbre accessoire et dont une extrémité est reliée à l'un de ses contacts mobiles par l'intermédiaire d'un dispositif de démultiplication,
  • les moyens de synchronisation entre les premier et troisième interrupteurs étant agencés de sorte que, lors d'une manoeuvre d'ouverture donnée du disjoncteur, l'arbre accessoire est mis en rotation seulement sur un angle final de rotation de l'arbre principal afin de séparer entièrement la troisième paire de contacts.
According to the invention,
  • the actuating means of the first isolating switch comprise at least one main shaft adapted to be rotated by the single control and a main lever secured to the main shaft and one end of which is connected to one of the movable contacts,
  • the actuating means of the third switch comprise at least one accessory shaft parallel to the main shaft and an accessory lever integral with the accessory shaft and one end of which is connected to one of its movable contacts via a gearing device,
  • the synchronization means between the first and third switches being arranged so that, during a given opening maneuver of the circuit breaker, the accessory shaft is rotated only on a final angle of rotation of the main shaft in order to completely separate the third pair of contacts.

Par « accessoire », il faut comprendre ici et dans le cadre de l'invention, un arbre secondaire c'est-à-dire un arbre non directement relié à la commande unique.By "accessory" is meant here and in the context of the invention, a secondary shaft that is to say a tree not directly connected to the single command.

Selon l'invention, on actionne le sectionneur principal sur toute la course de l'arbre principal et on actionne un arbre accessoire sur la fin de l'ouverture seulement. L'actionnement de cet arbre peut être fait par came, par chaîne ou tout autre moyen. La course angulaire de cet arbre étant faible, le levier entraîne un pantographe, ou autre cinématique, afin de créer une démultiplication de la course au niveau du sectionneur secondaire, tout en conservant un encombrement réduit (afin de respecter les entraxes sites).According to the invention, the main disconnector is actuated over the entire stroke of the shaft main and we operate an accessory shaft on the end of the opening only. The actuation of this shaft can be done by cam, by chain or any other means. The angular travel of this shaft being low, the lever drives a pantograph, or other kinematic, to create a reduction of the race at the secondary disconnect, while maintaining a small footprint (to meet the center distances).

L'axe principal entraîne également une came pour piloter l'ampoule à vide dont l'ouverture assure l'interruption d'arc électrique. Cette ampoule est ouverte en début d'ouverture afin de ne pas contraindre inutilement les isolants quand l'appareil est fermé (et de risquer le fluage de ceux-ci). Elle est alors fermée, avant l'ouverture des contacts principaux, pour transiter le courant. Elle est ensuite ouverte, puis refermée en fin de course afin de mettre au potentiel la zone comprise entre l'ampoule et le sectionneur secondaire (La mise au potentiel de cette zone peut être faite par un autre dispositif). Ce système de gestion par came permet de gérer des courses radicalement différentes (de 10 à 200 mm, et plus si nécessaire).The main axis also drives a cam to drive the vacuum bulb whose opening ensures the interruption of the electric arc. This bulb is opened at the beginning of opening so as not to unnecessarily force the insulators when the device is closed (and to risk the creep of these). It is then closed, before the opening of the main contacts, to pass the current. It is then opened, then closed at the end of the race in order to put the potential between the bulb and the secondary disconnector to the potential (Potential for this zone may be made by another device). This cam management system makes it possible to manage radically different races (from 10 to 200 mm, and more if necessary).

Avantageusement, le levier accessoire est relié directement au dispositif de démultiplication par une seule biellette.Advantageously, the accessory lever is connected directly to the reduction device by a single link.

Selon une variante avantageuse, le dispositif de démultiplication comprend un pantographe.According to an advantageous variant, the demultiplication device comprises a pantograph.

Selon une variante avantageuse, les moyens de synchronisation entre les premier et troisième interrupteurs de coupure comprennent d'une part une came solidaire de l'arbre principal, et d'autre part un levier de liaison solidaire de l'arbre accessoire et portant un pion en appui contre la came, le profil de la came étant tel que le pion ne se déplace que sur l'angle final de rotation de l'arbre principal.According to an advantageous variant, the synchronization means between the first and third cutoff switches comprise on the one hand a cam integral with the main shaft, and on the other hand a connecting lever secured to the accessory shaft and carrying a pin bearing against the cam, the profile of the cam being such that the pin moves only on the final angle of rotation of the main shaft.

De préférence, la came est munie d'une rainure de guidage dans laquelle coulisse le pion, la rainure de guidage présentant deux parties incurvées d'incurvation différente.Preferably, the cam is provided with a guide groove in which the pin slides, the guide groove having two curved parts of different curvature.

Selon une mode de réalisation avantageux:

  • les moyens d'actionnement du deuxième interrupteur de coupure comprennent au moins un autre arbre accessoire parallèle à l'arbre principal et un autre levier accessoire solidaire de l'autre arbre accessoire et dont une extrémité est reliée directement à l'un de ses contacts mobiles,
  • les moyens de synchronisation entre les premier et deuxième interrupteurs étant agencés de sorte que, lors d'une manoeuvre d'ouverture donnée du disjoncteur, l'autre arbre accessoire est successivement mis en rotation ou arrêté sur l'angle complet de rotation de l'arbre principal afin successivement de fermer la paire de contacts du troisième interrupteur initialement ouverte, de l'ouvrir, de la maintenir ouverte puis de la refermer.
According to an advantageous embodiment:
  • the actuating means of the second cutoff switch comprise at least one additional accessory shaft parallel to the main shaft and another accessory lever integral with the other accessory shaft and one end of which is connected directly to one of its movable contacts ,
  • the synchronization means between the first and second switches being arranged so that, during a given opening operation of the circuit breaker, the other accessory shaft is successively rotated or stopped on the complete angle of rotation of the main shaft to successively close the pair of contacts of the third switch initially opened, open it, keep it open and then close it.

Selon une variante avantageuse, les moyens de synchronisation entre les premier et deuxième interrupteurs comprennent d'une part une autre came reliée à l'arbre principal, et d'autre part un autre levier de liaison solidaire de l'autre arbre accessoire et portant un autre pion en appui contre la came.According to an advantageous variant, the synchronization means between the first and second switches comprise on the one hand another cam connected to the main shaft, and on the other hand another linkage lever secured to the other accessory shaft and carrying another pin bearing against the cam.

Selon cette même variante avantageuse, l'autre came peut être munie d'une rainure de guidage dans laquelle coulisse l'autre pion, la rainure de guidage présentant quatre parties incurvées d'incurvation différente.According to this same advantageous variant, the other cam may be provided with a guide groove in which the other pin slides, the guide groove having four curved parts of different curvature.

Egalement selon cette variante, l'autre came peut être reliée par une seule bielle à l'arbre principal.Also according to this variant, the other cam can be connected by a single connecting rod to the main shaft.

En outre, la deuxième paire de contacts peut être en translation selon le même axe que celui de la première et troisième paire et, le disjoncteur peut comprendre un double levier, dont l'un constitue l'autre levier accessoire et dont l'autre constitue l'autre levier de liaisonIn addition, the second pair of contacts may be in translation along the same axis as that of the first and third pair and the circuit breaker may comprise a double lever, one of which constitutes the other accessory lever and the other constitutes the other link lever

BRÈVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

La figure 1 est une vue de dessus d'un mode de réalisation d'un disjoncteur sectionneur d'alternateur selon l'invention.The figure 1 is a top view of an embodiment of an alternator disconnect circuit breaker according to the invention.

La figure 2 est une vue de côté du disjoncteur selon la figure 1.The figure 2 is a side view of the circuit breaker according to the figure 1 .

La figure 3 est une vue en coupe longitudinale selon l'axe A-A du disjoncteur selon la figure 2.The figure 3 is a longitudinal sectional view along the axis AA of the circuit breaker according to the figure 2 .

La figure 3A est une vue agrandie d'une partie du disjoncteur selon la figure 3.The figure 3A is an enlarged view of a part of the circuit breaker according to the figure 3 .

EXPOSÉ DÉTAILLÉ DE MODES DE RÉALISATION PARTICULIERSDETAILED PRESENTATION OF PARTICULAR EMBODIMENTS

Tel qu'illustré, le disjoncteur sectionneur d'alternateur (D) comprend respectivement deux interrupteurs sectionneurs 5, 5a ; 12, 12a et un interrupteur de coupure 16,17 qui s'étendent selon le même axe XX'.As illustrated, the alternator disconnecting circuit breaker (D) comprises respectively two disconnecting switches 5, 5a; 12, 12a and a switch 16,17 which extend along the same axis XX '.

L'un des interrupteurs sectionneurs représenté comprend une paire de contacts 12,12a mobiles l'un par rapport à l'autre en translation.One of the disconnect switches shown comprises a pair of contacts 12, 12a movable relative to each other in translation.

L'interrupteur de coupure comprend une paire de contacts 16, 17 mobiles également l'un par rapport à l'autre en translation. Cet interrupteur de coupure est connecté électriquement en parallèle à l'interrupteur sectionneur 5,5a. L'interrupteur de coupure est constitué, dans le mode de réalisation illustré, par une ampoule à vide.The cutoff switch comprises a pair of contacts 16, 17 also movable relative to each other in translation. This cutoff switch is electrically connected in parallel with the disconnector switch 5,5a. In the illustrated embodiment, the breaking switch is constituted by a vacuum interrupter.

L'autre interrupteur sectionneur comprend une paire de contacts 5,5a mobiles l'un par rapport à l'autre en translation.The other disconnector switch comprises a pair of contacts 5.5a movable relative to each other in translation.

Dans le disjoncteur d'alternateur D représenté, sont prévus des moyens 2 ; 13, 14, 15 ; 3, 6, 7, 8, 9, 11 d'actionnement d'un contact mobile 5, 12, de chaque interrupteur sectionneur ou de celui 16 de l'interrupteur de coupure.In the alternator circuit breaker D shown, means 2 are provided; 13, 14, 15; 3, 6, 7, 8, 9, 11 for actuating a movable contact 5, 12, of each isolating switch or of that 16 of the breaking switch.

Il est également prévu, des moyens de synchronisation 3, 30 ; 14, 140 permettant, lors d'une manoeuvre d'ouverture donnée du disjoncteur, la séparation des contacts 5,5a du premier interrupteur sectionneur avant la séparation des contacts 16, 17 de l'interrupteur de coupure, qui eux-mêmes se séparent avant que les contacts 12,12a de l'autre interrupteur sectionneur ne se séparent entièrement.It is also provided, synchronization means 3, 30; 14, 140 allowing, during a given opening maneuver of the circuit breaker, the separation of the contacts 5, 5a from the first isolating switch before the separation of the contacts 16, 17 of the breaking switch, which themselves separate. before the contacts 12,12a of the other disconnect switch do not separate completely.

Enfin, dans le disjoncteur d'alternateur D selon l'invention, il est prévu de coupler et d'actionner par une commande unique non représentée les moyens de synchronisation et d'actionnement des trois interrupteurs.Finally, in the alternator circuit breaker D according to the invention, it is intended to couple and actuate by a single command not shown the synchronization and actuation means of the three switches.

Selon l'invention, les moyens d'actionnement de l'interrupteur sectionneur 5,5a comprennent au moins un arbre principal 1 actionné en rotation par la commande mécanique. Sur cet arbre 1 est monté de façon rigide un levier principal 2. Le levier 2 est relié par une unique biellette intermédiaire (non montrée) au tube du sectionneur principal 5.According to the invention, the actuating means of the disconnector switch 5, 5a comprise at least one main shaft 1 actuated in rotation by the mechanical control. On this shaft 1 is mounted rigidly a main lever 2. The lever 2 is connected by a single intermediate link (not shown) to the main disconnector tube 5.

Les moyens d'actionnement de l'autre interrupteur sectionneur 12, 12a comprennent au moins un arbre accessoire 8 parallèle à l'arbre principal 1 et un levier accessoire 9 solidaire de l'arbre accessoire 8 et dont une extrémité 90 est reliée au contact mobile 12 par l'intermédiaire d'un dispositif de démultiplication 10, 11, qui est un pantographe dans le mode de réalisation illustré (figure 3).The actuating means of the other disconnector switch 12, 12a comprise at least one accessory shaft 8 parallel to the main shaft 1 and an accessory lever 9 integral with the accessory shaft 8 and one end 90 of which is connected to the movable contact 12 by means of a demultiplication device 10, 11, which is a pantograph in the illustrated embodiment ( figure 3 ).

Les moyens de synchronisation entre les deux interrupteurs sectionneurs 5,5a, 12,12a sont agencés de sorte que, lors d'une manoeuvre d'ouverture donnée du disjoncteur, l'arbre accessoire 8 est mis en rotation seulement sur un angle final de rotation de l'arbre principal 1 afin de séparer entièrement la paire de contacts 12,12a du sectionneur.The synchronization means between the two disconnector switches 5,5a, 12,12a are arranged such that, during a given opening operation of the circuit breaker, the accessory shaft 8 is rotated only at a final angle of rotation. of the main shaft 1 to fully separate the pair of contacts 12,12a of the disconnector.

Plus exactement, la came 3 guide un galet 7, monté sur un levier de liaison 6, le profil de la came 3 étant tel que le galet ne se déplace que sur l'angle final de rotation de l'arbre principal 1. Plus exactement encore, la came 3 est munie d'une rainure de guidage 30 dans laquelle coulisse le galet 7, la rainure de guidage présentant deux parties incurvées 30a, 30b d'incurvation différente.More exactly, the cam 3 guides a roller 7, mounted on a connecting lever 6, the profile of the 3 being such that the roller moves only on the final angle of rotation of the main shaft 1. More exactly, the cam 3 is provided with a guide groove 30 in which the roller 7 slides, the groove guide having two curved portions 30a, 30b of different curvature.

Ce levier de liaison 6 ainsi que le levier accessoire 9 sont montés sur l'arbre accessoire 8. La forme de la rainure 30 de la came 3 permet d'entraîner en rotation l'arbre accessoire 8 pendant une partie seulement de la course de l'arbre principal. Le levier accessoire 9 est relié à une seule biellette 10 qui actionne directement un pantographe 11, qui lui même pilote le mouvement du tube du sectionneur 12.This connecting lever 6 as well as the accessory lever 9 are mounted on the accessory shaft 8. The shape of the groove 30 of the cam 3 makes it possible to drive the accessory shaft 8 in rotation for only part of the travel of the main tree. The accessory lever 9 is connected to a single rod 10 which directly actuates a pantograph 11, which itself controls the movement of the tube of the disconnector 12.

Les moyens d'actionnement de l'interrupteur de coupure ou ampoule à vide 16, 17 comprennent au moins un autre arbre accessoire 18 parallèle à l'arbre principal 1 et un autre levier accessoire 150 solidaire de l'autre arbre accessoire 18 et dont une extrémité est reliée directement au contact mobile 16.The means for actuating the cut-off switch or vacuum interrupter 16, 17 comprise at least one other accessory shaft 18 parallel to the main shaft 1 and another accessory lever 150 integral with the other accessory shaft 18 and one of which end is connected directly to the movable contact 16.

Tel que représenté, les moyens de synchronisation entre l'interrupteur sectionneur 12,12a et l'interrupteur de coupure 16, 17 sont agencés de sorte que, lors d'une manoeuvré d'ouverture donnée du disjoncteur, l'autre arbre accessoire 18 est successivement mis en rotation ou arrêté sur l'angle complet de rotation de l'arbre principal 1 afin successivement de fermer la paire de contacts 16, 17 de l'interrupteur de coupure initialement ouverte, de l'ouvrir, de la maintenir ouverte puis de la refermer.As shown, the synchronization means between the disconnector switch 12, 12a and the switch-off switch 16, 17 are arranged so that, during a given opening maneuver of the circuit breaker, the other accessory shaft 18 is successively rotated or stopped on the full angle of rotation of the main shaft 1 in order successively to close the pair of contacts 16, 17 of the initially open cutoff switch, to open it, to keep it open and then to close it.

Dans le mode de réalisation illustré (figure 3), pour réaliser cet agencement, il est prévu une autre came 14 reliée à l'arbre principal 1 par l'extrémité extérieure du levier principal 2 reliée elle-même à une unique bielle 13 qui actionne cette autre came 14. La rainure 140 de cette autre came 14 permet de faire pivoter le double levier 15 qui actionne, via une biellette 16, l'ampoule à vide 17.In the illustrated embodiment ( figure 3 ) to achieve this arrangement, there is provided another cam 14 connected to the main shaft 1 by the outer end of the main lever 2 connected itself to a single rod 13 which actuates the other cam 14. The groove 140 of this other cam 14 makes it possible to pivot the double lever 15 which actuates, via a connecting rod 16, the vacuum bulb 17.

Plus exactement, il est prévu, en tant que moyens de synchronisation, un autre levier de liaison 151 solidaire de l'autre arbre accessoire 150 et portant un autre galet 19 coulissant dans la rainure de guidage 140 de l'autre came 14.More exactly, there is provided, as synchronization means, another link lever 151 secured to the other accessory shaft 150 and carrying another roller 19 sliding in the guide groove 140 of the other cam 14.

La rainure de guidage 140 de cette autre came 14 présente quatre parties incurvées 140a, 140b, 140c, 140d d'incurvation différente (figure 3A).The guide groove 140 of this other cam 14 has four curved portions 140a, 140b, 140c, 140d of different curvature ( figure 3A ).

L'autre came 14 est reliée directement par une seule bielle 13 à l'arbre principal 1.The other cam 14 is connected directly by a single connecting rod 13 to the main shaft 1.

Dans le mode de réalisation illustré, l'autre levier de liaison 150 et l'autre levier accessoire 151 sont réalisés en une seule pièce qui est un double levier 15.In the illustrated embodiment, the other link lever 150 and the other accessory lever 151 are made in one piece which is a double lever 15.

Claims (10)

Disjoncteur sectionneur d'alternateur (D) comprenant : - un premier interrupteur de sectionnement comprenant une première paire de contacts (5, 5a) mobiles l'un par rapport à l'autre en translation, - un deuxième interrupteur de coupure comprenant une deuxième paire de contacts (16,17) mobiles l'un par rapport à l'autre en translation, le deuxième interrupteur étant connecté électriquement en parallèle du premier interrupteur, - un troisième interrupteur de sectionnement comprenant une troisième paire de contacts (12,12a) mobiles l'un par rapport à l'autre en translation, le troisième interrupteur étant connecté électriquement en série avec le deuxième interrupteur et en parallèle avec le premier interrupteur, - des moyens (2 ; 13, 14, 15 ; 3, 6, 7, 8, 9,11) d'actionnement d'un contact mobile (5, 12, 16) de chaque interrupteur, - des moyens de synchronisation (3, 30 ; 14,140) permettant, lors d'une manoeuvre d'ouverture donnée du disjoncteur, la séparation des contacts (5,5a) du premier interrupteur avant la séparation des contacts (16,17) du deuxième interrupteur, qui eux-mêmes se séparent avant que les troisièmes contacts (12,12a) ne se séparent entièrement, - les moyens de synchronisation et d'actionnement des trois interrupteurs étant couplés et actionnés eux-mêmes par une commande unique, - la première et troisième paires de contacts étant en translation selon le même axe (XX'), caractérisé en ce que : • les moyens d'actionnement du premier interrupteur (5,5a) sectionneur comprennent au moins un arbre principal (1) adapté pour être mis en rotation par la commande unique et un levier principal (2) solidaire de l'arbre principal et dont une extrémité est reliée à l'un des contacts mobiles (5), • les moyens d'actionnement du troisième interrupteur (12) comprennent au moins un arbre accessoire (8) parallèle à l'arbre principal (1) et un levier accessoire (9) solidaire de l'arbre accessoire (8) et dont une extrémité est reliée à l'un de ses contacts mobiles (12) par l'intermédiaire d'un dispositif de démultiplication (10,11), • les moyens de synchronisation entre les premier et troisième interrupteurs étant agencés de sorte que, lors d'une manoeuvré d'ouverture donnée du disjoncteur, l'arbre accessoire (8) est mis en rotation seulement sur un angle final de rotation de l'arbre principal (1) afin de séparer entièrement la troisième paire de contacts (12, 12a). Alternator disconnect circuit breaker (D) comprising: a first disconnection switch comprising a first pair of contacts (5, 5a) movable relative to one another in translation, a second cut-off switch comprising a second pair of contacts (16, 17) movable relative to one another in translation, the second switch being electrically connected in parallel with the first switch, a third disconnection switch comprising a third pair of contacts (12, 12a) movable relative to each other in translation, the third switch being electrically connected in series with the second switch and in parallel with the first switch, means (2; 13, 14, 15; 3, 6, 7, 8, 9, 11) for actuating a movable contact (5, 12, 16) of each switch, - synchronization means (3, 30; 14, 140) allowing, during a given opening maneuver of the circuit breaker, the separation of the contacts (5, 5a) of the first switch before the separation of the contacts (16, 17) of the second switch, which themselves separate before the third contacts (12,12a) separate completely, the means of synchronization and actuation of the three switches being coupled and actuated themselves by a single command, the first and third pairs of contacts being in translation along the same axis (XX '), characterized in that : The actuating means of the first switch (5,5a) comprises at least one main shaft (1) adapted to be rotated by the single control and a main lever (2) integral with the main shaft and one of which end is connected to one of the movable contacts (5), The actuating means of the third switch (12) comprise at least one accessory shaft (8) parallel to the main shaft (1) and an accessory lever (9) integral with the accessory shaft (8) and one end of which is connected to one of its mobile contacts (12) via a reduction device (10, 11), The means of synchronization between the first and third switches being arranged so that, during a given opening maneuver of the circuit breaker, the accessory shaft (8) is rotated only on a final angle of rotation of the main shaft (1) to fully separate the third pair of contacts (12, 12a). Disjoncteur selon la revendication 1, dans lequel le levier accessoire (9) est relié directement au dispositif de démultiplication (11) par une seule biellette (10).Circuit breaker according to claim 1, wherein the accessory lever (9) is connected directly to the reduction device (11) by a single link (10). Disjoncteur selon la revendication 1 ou 2, dans lequel le dispositif de démultiplication comprend un pantographe (11).Circuit breaker according to claim 1 or 2, wherein the reduction device comprises a pantograph (11). Disjoncteur selon l'une quelconque des revendications 1 à 3, dans lequel les moyens de synchronisation entre les premier et troisième interrupteurs de coupure comprennent d'une part une came (3) solidaire de l'arbre principal (1), et d'autre part un levier de liaison (6) solidaire de l'arbre accessoire (8) et portant un pion (7) en appui contre la came (3), le profil de la came étant tel que le pion ne se déplace que sur l'angle final de rotation de l'arbre principal.Circuit breaker according to any one of claims 1 to 3, wherein the synchronization means between the first and third cutoff switches comprise on the one hand a cam (3) integral with the main shaft (1), and other a link lever (6) secured to the accessory shaft (8) and carrying a pin (7) bearing against the cam (3), the profile of the cam being such that the pin moves only on the final angle of rotation of the main shaft. Disjoncteur selon l'une quelconque des revendications 1 à 4, dans lequel la came (3) est munie d'une rainure de guidage (30) dans laquelle coulisse le pion (7), la rainure de guidage présentant deux parties incurvées (30a, 30b) d'incurvation différente.Circuit breaker according to any one of claims 1 to 4, wherein the cam (3) is provided with a guide groove (30) in which the pin (7) slides, the guide groove having two curved portions (30a, 30b) of different curvature. Disjoncteur selon l'une quelconque des revendications 1 à 5, dans lequel : • les moyens d'actionnement du deuxième interrupteur (16, 17) de coupure comprennent au moins un autre arbre accessoire (18) parallèle à l'arbre principal (1) et un autre levier accessoire (150) solidaire de l'autre arbre accessoire (18) et dont une extrémité est reliée directement à l'un de ses contacts mobiles (16), • les moyens de synchronisation entre les premier et deuxième interrupteurs étant agencés de sorte que, lors d'une manoeuvre d'ouverture donnée du disjoncteur, l'autre arbre accessoire (18) est successivement mis en rotation ou arrêté sur l'angle complet de rotation de l'arbre principal afin successivement de fermer la paire de contacts (16,17) du troisième interrupteur initialement ouverte, de l'ouvrir, de la maintenir ouverte puis de la refermer. Circuit breaker according to any one of claims 1 to 5, wherein: The actuating means of the second cut-off switch (16, 17) comprise at least one other accessory shaft (18) parallel to the main shaft (1) and another accessory lever (150) integral with the other accessory shaft (18) and one end of which is connected directly to one of its movable contacts (16), The synchronization means between the first and second switches being arranged so that, during a given opening operation of the circuit breaker, the other accessory shaft (18) is successively rotated or stopped on the complete angle of rotation of the main shaft in order successively to close the pair of contacts (16,17) of the third switch initially opened, to open it, to keep it open and then to close it again. Disjoncteur selon la revendication 6, dans lequel les moyens de synchronisation entre les premier et deuxième interrupteurs comprennent d'une part une autre came (14) reliée à l'arbre principal (1), et d'autre part un autre levier de liaison (151) solidaire de l'autre arbre accessoire (18) et portant un autre pion (19) en appui contre la came (14).Circuit breaker according to Claim 6, in which the synchronization means between the first and second switches comprise on the one hand another cam (14) connected to the main shaft (1), and on the other hand another connecting lever ( 151) secured to the other accessory shaft (18) and carrying another pin (19) bearing against the cam (14). Disjoncteur selon la revendication 7 dans lequel l'autre came (14) est munie d'une rainure de guidage (140) dans laquelle coulisse l'autre pion (19), la rainure de guidage (140) présentant quatre parties incurvées (140a, 140b, 140c, 140d) d'incurvation différente.A circuit breaker according to claim 7 wherein the other cam (14) is provided with a guide groove (140) in which the other pin (19) slides, the guide groove (140) having four curved portions (140a, 140b, 140c, 140d) of different curvature. Disjoncteur selon la revendication 7 ou 8, dans lequel l'autre came (14) est reliée par une seule bielle (13) à l'arbre principal (1).Circuit breaker according to claim 7 or 8, wherein the other cam (14) is connected by a single connecting rod (13) to the main shaft (1). Disjoncteur selon l'une des revendications 7 à 9, comprenant un double levier (15), dont l'un (150) constitue l'autre levier accessoire et dont l'autre (151) constitue l'autre levier de liaison et, dans lequel la deuxième paire de contacts (16, 17) est en translation selon le même axe (XX') que celui de la première et troisième paire.Circuit breaker according to one of claims 7 to 9, comprising a double lever (15), one (150) constitutes the other accessory lever and the other (151) constitutes the other link lever and, in which the second pair of contacts (16, 17) is in translation along the same axis ( XX ') than that of the first and third pair.
EP08164321A 2007-09-17 2008-09-15 Activation of an alternator load-break switch by a group of one main shaft and several secondary shafts Not-in-force EP2037470B1 (en)

Applications Claiming Priority (1)

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FR0757629A FR2921198B1 (en) 2007-09-17 2007-09-17 ACTUATION BY A MAIN SHAFT ASSEMBLY AND SECONDARY TREES OF A CIRCUIT BREAKER BREAKER

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EP2037470B1 EP2037470B1 (en) 2013-01-23

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EP (1) EP2037470B1 (en)
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FR3077921B1 (en) * 2018-02-09 2021-11-12 Jean Pierre Betoliere HIGH VOLTAGE CIRCUIT BREAKER / DISCONNECTOR FOR GENERATOR PROTECTION
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Also Published As

Publication number Publication date
EP2037470B1 (en) 2013-01-23
FR2921198B1 (en) 2010-03-12
FR2921198A1 (en) 2009-03-20
US20090071809A1 (en) 2009-03-19
US7915548B2 (en) 2011-03-29
CN101393813A (en) 2009-03-25
CN101393813B (en) 2013-03-27

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