EP0026130A1 - Disconnecting switch for alternating current electrical installations - Google Patents

Disconnecting switch for alternating current electrical installations Download PDF

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Publication number
EP0026130A1
EP0026130A1 EP80401301A EP80401301A EP0026130A1 EP 0026130 A1 EP0026130 A1 EP 0026130A1 EP 80401301 A EP80401301 A EP 80401301A EP 80401301 A EP80401301 A EP 80401301A EP 0026130 A1 EP0026130 A1 EP 0026130A1
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EP
European Patent Office
Prior art keywords
flexible metal
contact
fixed
blades
metal blade
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.)
Withdrawn
Application number
EP80401301A
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German (de)
French (fr)
Inventor
Georges Maury
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.)
Dauphinoise de Constructions Electro Mecaniques SAS
SNCF Mobilites
Original Assignee
Dauphinoise de Constructions Electro Mecaniques SAS
SNCF Mobilites
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 Dauphinoise de Constructions Electro Mecaniques SAS, SNCF Mobilites filed Critical Dauphinoise de Constructions Electro Mecaniques SAS
Publication of EP0026130A1 publication Critical patent/EP0026130A1/en
Withdrawn legal-status Critical Current

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    • 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/123—Load break switches in which the auxiliary contact pivots on the main contact-arm and performs a delayed and accelerated movement
    • H01H33/124—Load break switches in which the auxiliary contact pivots on the main contact-arm and performs a delayed and accelerated movement the auxiliary contact being a whip contact

Definitions

  • the present invention relates to a disconnect device for alternating current electrical installations, of the snap type and more particularly to an improved snap device for disconnector using the cut in the air.
  • disconnecting devices In medium, high and very high ac alternating current electrical installations, disconnecting devices are used whose purpose is to isolate part of the installation from the rest of the network, in order to de-energize it. These disconnecting devices are capable of cutting currents of a few tens of amperes with a power factor less than or equal to 0.1, or of interrupting load currents of a few hundred amperes.
  • the present invention relates to a sectioning device using the cut in the air.
  • the performance of such devices depends, during the opening operation, on the elongation of the electric arc and the speed of separation of the contacts, avoiding ionization of the interval between the contacts.
  • the subject of the invention is a device which makes it possible to substantially increase these two factors, thereby bringing an improvement to the performance of air disconnecting devices.
  • the breaking capacity is a function of the speed of movement of the single movable element.
  • the circuit breaker in the air for alternating current, of the snap type in accordance with the invention comprises two main contacts, at least one of which is movable, each comprising a movable auxiliary contact constituted by a flexible metal blade, the l '' is mounted on a support integral with one of the main contacts while the other is fixed on the second main contact, the two blades being arranged so that one can drive the other on an angle of rotation determined.
  • the device comprises a fixed contact and a movable contact, each of these two contacts comprising an auxiliary movable contact.
  • the auxiliary contact of the fixed contact consists of a flexible metal rod, comprising at its end a hook, mounted on an arm secured to the fixed contact, while the movable contact carries as auxiliary contact a flexible metal blade, mounted in its extension, of which the end can engage the hook-shaped end of the flexible rod of the fixed contact to drive it at a determined angle.
  • the movable main contact When the movable main contact is actuated, with a view to obtaining the cut-off, it drives with it the flexible rod which is integral therewith, this driving the flexible rod integral with the fixed element in the end of which it is engaged , until there is separation of the two ends of the flexible rods. From this moment, the flexible rod secured to the movable contact is recalled at speed V1, and the flexible rod secured to the fixed contact recalled at speed V2, V1 and V2 being in the opposite direction; the separation therefore takes place at the relative speed V1 + V2.
  • one of the main contacts is constituted by an arm movable by rotation in a plane and carries a flexible metal blade fixed by its base, making with the plane of rotation of the arm an angle close to 90 °.
  • the flexible blade of the other main contact is mounted by its upper end at the top of an axis around which it can rotate, in a vertical position, its free lower end carrying a hook capable of driving the other flexible blade.
  • the two main contacts are constituted by two arms rotating in the same plane around two parallel axes.
  • One of the arms carries an axis perpendicular to the plane of rotation, at the top of which is mounted a flexible metal blade substantially vertical, by its upper end so that it can rotate around the axis, while on the second arm is fixed a flexible metal blade substantially vertical, fixed to the arm by its base.
  • This embodiment of the invention is particularly suitable for three-pole devices.
  • conventional devices with auxiliary contacts when a flexible rod relaxes, its movement involves it in a trajectory such that it risks being for a brief instant near a neighboring pole and consequently the horizontal displacement of a flexible blade has the disadvantage of reducing the real distance of insulation between poles and of stretching the cutting arc towards the neighboring pole.
  • the two main contacts when the two main contacts are set in motion according to opposite rotations, the two flexible blades retain each other and move away from their equilibrium positions until the contact is suddenly broken. They are then brought back to their respective equilibrium positions according to return movements in substantially vertical planes, and thus remain away from the other poles of the apparatus during their oscillations around equilibrium.
  • FIG. 1 is presented a known device comprising an auxiliary contact G secured to the fixed main contact D, and an auxiliary contact constituted by a flexible metal rod H secured to the movable main contact F, the separation of H and G taking place according to the single return speed of the flexible metal rod H against the arm F.
  • FIG. 2 is shown schematically the device of the invention comprising the main fixed 1 and movable contacts 2. From the fixed contact 1 is secured an auxiliary arm 3 (the presence of this auxiliary arm being given by way of example and not being not limiting of the invention) which is also integral with a flexible metal rod 4 the end of which is formed as a hook 5 (the hook shape not being limiting of the invention), the flexible rod 4 being recalled at speed V2 in its initial position against the arm 3 by a spring 6.
  • auxiliary arm 3 the presence of this auxiliary arm being given by way of example and not being not limiting of the invention
  • a flexible metal rod 4 the end of which is formed as a hook 5 (the hook shape not being limiting of the invention)
  • the flexible rod 4 being recalled at speed V2 in its initial position against the arm 3 by a spring 6.
  • the movable main contact 2 is integral with a flexible metal rod 7 engaged, from the closed position, in the end hook 5 of the flexible rod 4.
  • the snap disconnect device shown in Figure 3 includes a first main contact 8 and a second main contact 9.
  • the arm 8 is movable by rotation about an axis 10 at one of its ends.
  • an axis 11 perpendicular to the arm 8 At the other end is mounted an axis 11 perpendicular to the arm 8, at the top of which is placed a flexible metal blade 12 on its support 13.
  • This support 13 can rotate freely around the axis 11; the blade 12 can also rotate at a certain angle around its attachment 14 with an axis perpendicular to the axis 11, the end of the metal blade being wound around the support 14 to spring so that the tension of the spring when we move the blade aside, bring it back to its vertical equilibrium position.
  • the free end 15 of the blade 12 is in the form of a hook.
  • the arm 9 of the second main contact is movable by rotation about the axis 16 and carries a flexible metal blade 17 raised relative to the horizontal by an angle of about 80 °, and engaging in the hook 14 of the blade 12. In the equilibrium position, the blade 17 and the arm 9 define a substantially vertical plane.
  • the rotation of the support 13 of the blade 12 can be limited in the usual way by a stop (not shown) fixed on the axis 11.
  • a torsion spring can be provided to bring the support 13 back into its equilibrium position where the blade 12 rotates around its attachment 14 takes place in the vertical plane of the arm 8 and of the axis 11.

Abstract

The invention relates to disconnecting devices of the sudden-break type. The device comprises in particular two main contacts 1 and 2, and two auxiliary contacts consisting of flexible metal rods 5 and 7, the rod 5 being able to engage in the hook-shaped end of the rod 7 in order to drive it through a specified angle beyond which the two strips separate with opposite velocities. Application to medium- or high-voltage alternating current electrical installations. <IMAGE>

Description

La présente invention concerne un dispositif de sectionnement pour installations électriques à courant alternatif, du type à rupture brusque et plus particulièrement un dispositif perfectionné à rupture brusque pour sectionneur utilisant la coupure dans l'air.The present invention relates to a disconnect device for alternating current electrical installations, of the snap type and more particularly to an improved snap device for disconnector using the cut in the air.

Dans les installations électriques à moyenne, haute et très haute tensions à courant alternatif, on utilise des appareils de sectionnement ayant pour but d'isoler une partie de l'installation du reste du réseau, afin de la mettre hors tension. Ces appareils de sectionnement sont susceptibles de couper des courants de quelques dizaines d'ampères avec un facteur de puissance inférieur ou égal à 0,1, ou d'interrompre des courants de charge de quelques centaines d'ampères.In medium, high and very high ac alternating current electrical installations, disconnecting devices are used whose purpose is to isolate part of the installation from the rest of the network, in order to de-energize it. These disconnecting devices are capable of cutting currents of a few tens of amperes with a power factor less than or equal to 0.1, or of interrupting load currents of a few hundred amperes.

La présente invention a pour objet un appareil de sectionnement utilisant la coupure dans l'air. La performance de tels appareils dépend, lors de la manoeuvre d'ouverture, de l'allongement de l'arc électrique et de la vitesse de séparation des contacts, évitant l'ionisation de l'intervalle entre les contacts.The present invention relates to a sectioning device using the cut in the air. The performance of such devices depends, during the opening operation, on the elongation of the electric arc and the speed of separation of the contacts, avoiding ionization of the interval between the contacts.

L'invention a pour objet un dispositif qui permet d'accroitre sensiblement ces deux facteurs,apportant ainsi une amélioration aux performances des appareils de sectionnement dans l'air.The subject of the invention is a device which makes it possible to substantially increase these two factors, thereby bringing an improvement to the performance of air disconnecting devices.

Lorsque l'un des deux éléments établissant le contact est fixe, comme c'est couramment le cas, le pouvoir de coupure est fonction de la vitesse de déplacement du seul élément mobile. En prévoyant d'exercer la coupure entre deux éléments mobiles animés de vitesses en sens opposé on obtient alors la séparation des deux éléments à une vitesse relative double.When one of the two elements establishing contact is fixed, as is commonly the case, the breaking capacity is a function of the speed of movement of the single movable element. By providing for the cutoff between two moving elements with opposite speeds, the two elements are then separated at a double relative speed.

Le dispositif de sectionnement dans l'air pour courant alternatif, du type à rupture brusque conforme à l'invention, comprend deux contacts principaux dont l'un au moins est mobile, comportant chacun un contact auxiliaire mobile constitué par une lame métallique flexible dont l'une est montée sur un support solidaire de l'un des contacts principaux tandis que l'autre est fixée sur le deuxième contact principal, les deux lames étant disposées de telle sorte que l'une puisse entraîner l'autre sur un angle de rotation déterminé.The circuit breaker in the air for alternating current, of the snap type in accordance with the invention, comprises two main contacts, at least one of which is movable, each comprising a movable auxiliary contact constituted by a flexible metal blade, the l '' is mounted on a support integral with one of the main contacts while the other is fixed on the second main contact, the two blades being arranged so that one can drive the other on an angle of rotation determined.

Suivant une forme de réalisation de l'invention, le dispositif comprend un contact fixe et un contact mobile, chacun de ces deux contacts comportant un contact auxiliaire mobile. Le contact auxiliaire du contact fixe est constitué par une tige métallique flexible, comportant à son extrémité un crochet, montée sur un bras solidaire du contact fixe, tandis que le contact mobile porte comme contact auxiliaire une lame métallique flexible, montée dans son prolongement, dont l'extrémité peut s'engager dans l'extrémité en forme de crochet de la tige flexible du contact fixe pour l'entraîner suivant un angle déterminé. Quand on actionne le contact principal mobile, en vue d'obtenir la coupure, il entraine avec lui la tige flexible qui en est solidaire, celle-ci entraînant la tige flexible solidaire de l'élément fixe dans l'extrémité de laquelle elle est engagée, jusqu'à ce qu'il y ait séparation des deux extrémités des tiges flexibles. Dès cet instant, la tige flexible solidaire du contact mobile est rappelée à la vitesse V1, et la tige flexible solidaire du contact fixe rappelée à la vitesse V2, V1 et V2 étant de sens inverse; la séparation s'opère donc à la vitesse relative V1+V2.According to an embodiment of the invention, the device comprises a fixed contact and a movable contact, each of these two contacts comprising an auxiliary movable contact. The auxiliary contact of the fixed contact consists of a flexible metal rod, comprising at its end a hook, mounted on an arm secured to the fixed contact, while the movable contact carries as auxiliary contact a flexible metal blade, mounted in its extension, of which the end can engage the hook-shaped end of the flexible rod of the fixed contact to drive it at a determined angle. When the movable main contact is actuated, with a view to obtaining the cut-off, it drives with it the flexible rod which is integral therewith, this driving the flexible rod integral with the fixed element in the end of which it is engaged , until there is separation of the two ends of the flexible rods. From this moment, the flexible rod secured to the movable contact is recalled at speed V1, and the flexible rod secured to the fixed contact recalled at speed V2, V1 and V2 being in the opposite direction; the separation therefore takes place at the relative speed V1 + V2.

Suivant une autre forme de réalisation, l'un des contacts principaux est constitué par un bras mobile par rotation dans un plan et porte une lame métallique flexible fixée par sa base, faisant avec le plan de rotation du bras un angle voisin de 90°. La lame flexible de l'autre contact principal est montée par son extrémité supérieure au sommet d'un axe autour duquel elle peut tourner, en position verticale, son extrémité inférieure libre portant un crochet susceptible d'entrainer l'autre lame flexible.According to another embodiment, one of the main contacts is constituted by an arm movable by rotation in a plane and carries a flexible metal blade fixed by its base, making with the plane of rotation of the arm an angle close to 90 °. The flexible blade of the other main contact is mounted by its upper end at the top of an axis around which it can rotate, in a vertical position, its free lower end carrying a hook capable of driving the other flexible blade.

Suivant une forme préférentielle de mise en oeuvre de l'invention, les deux contacts principaux sont constitués par deux bras tournant dans un même plan autour de deux axes parallèles. L'un des bras porte un axe perpendiculaire au plan de rotation, au sommet duquel est montée une lame métallique flexible sensiblement verticale, par son extrémité supérieure de telle sorte qu'elle puisse tourner autour de l'axe, tandis que sur le deuxième bras est fixée une lame métallique flexible sensiblement verticale, fixée au bras par sa base.According to a preferred embodiment of the invention, the two main contacts are constituted by two arms rotating in the same plane around two parallel axes. One of the arms carries an axis perpendicular to the plane of rotation, at the top of which is mounted a flexible metal blade substantially vertical, by its upper end so that it can rotate around the axis, while on the second arm is fixed a flexible metal blade substantially vertical, fixed to the arm by its base.

Cette forme de réalisation de l'invention convient tout particulièrement pour des appareillages tripolaires. En effet, dans les dispositifs classiques à contacts auxiliaires, lorsqu'une tige flexible se détend, son mouvement l'entraîne dans une trajectoire telle qu'elle risque de se trouver pendant un bref instant à proximité d'un pôle voisin et par conséquent le déplacement horizontal d'une lame flexible présente l'inconvénient de diminuer la distance réelle d'isolement entre pôles et d'étirer l'arc de coupure vers le pôle voisin. Au contraire, conformément à l'invention, lorsque les deux contacts principaux sont mis en mouvement suivant des rotations opposées, les deux lames flexibles se retiennent mutuellement et s'écartent de leurs positions d'équilibre jusqu'à rupture brusque du contact. Elles sont alors ramenées vers leurs positions d'équilibre respectives suivant des mouvements de rappel dans des plans sensiblement verticaux, et restent ainsi à l'écart des autres pôles de l'appareillage au cours de leurs oscillations autour de l'équilibre.This embodiment of the invention is particularly suitable for three-pole devices. Indeed, in conventional devices with auxiliary contacts, when a flexible rod relaxes, its movement involves it in a trajectory such that it risks being for a brief instant near a neighboring pole and consequently the horizontal displacement of a flexible blade has the disadvantage of reducing the real distance of insulation between poles and of stretching the cutting arc towards the neighboring pole. On the contrary, in accordance with the invention, when the two main contacts are set in motion according to opposite rotations, the two flexible blades retain each other and move away from their equilibrium positions until the contact is suddenly broken. They are then brought back to their respective equilibrium positions according to return movements in substantially vertical planes, and thus remain away from the other poles of the apparatus during their oscillations around equilibrium.

Les caractéristiques et avantages de l'invention apparaitront plus en détail de la description suivante, relative à deux modes préférentiels de mise en oeuvre, en référence aux dessins annexés, qui représentent:

  • Figure 1: une vue en élévation d'un dispositif de rupture brusque de type classique.
  • Figure 2: une vue en élévation d'un dispositif conforme à l'invention comportant un contact principal fixe et un contact principal mobile.
  • Figure 3: une vue schématique en élévation du dispositif suivant l'invention.
  • Figure 4: une vue de dessus du dispositif de la figure 3, dans une autre position avant rupture.
The characteristics and advantages of the invention will appear in more detail from the following description, relating to two preferred modes of implementation, with reference to the appended drawings, which represent:
  • Figure 1: an elevational view of an abrupt rupture device of the conventional type.
  • Figure 2: an elevational view of a device according to the invention comprising a fixed main contact and a movable main contact.
  • Figure 3: a schematic elevational view of the device according to the invention.
  • Figure 4: a top view of the device of Figure 3, in another position before rupture.

Sur la figure 1 est présenté un dispositif connu comportant un contact auxiliaire G solidaire du contact principal fixe D, et un contact auxiliaire constitué par une tige métallique flexible H solidaire du contact principal mobile F, la séparation de H et G s'opérant en fonction de la seule vitesse de rappel de la tige métallique flexible H contre le bras F.In FIG. 1 is presented a known device comprising an auxiliary contact G secured to the fixed main contact D, and an auxiliary contact constituted by a flexible metal rod H secured to the movable main contact F, the separation of H and G taking place according to the single return speed of the flexible metal rod H against the arm F.

Sur la figure 2 est schématisé le dispositif de l'invention comportant les contacts principaux fixe 1 et mobile 2. Du contact fixe 1 est solidaire un bras auxiliaire 3 (la présence de ce bras auxiliaire étant donnée à titre d'exemple et n'étant pas limitative de l'invention) dont est également solidaire une tige métallique flexible 4 dont l'extrémité est formée en crochet 5 (la forme en crochet n'étant pas limitative de l'invention), la tige flexible 4 étant rappelée à la vitesse V2 dans sa position initiale contre le bras 3 par un ressort 6.In Figure 2 is shown schematically the device of the invention comprising the main fixed 1 and movable contacts 2. From the fixed contact 1 is secured an auxiliary arm 3 (the presence of this auxiliary arm being given by way of example and not being not limiting of the invention) which is also integral with a flexible metal rod 4 the end of which is formed as a hook 5 (the hook shape not being limiting of the invention), the flexible rod 4 being recalled at speed V2 in its initial position against the arm 3 by a spring 6.

Par ailleurs, du contact principal mobile 2 est solidaire une tige métallique flexible 7 engagée, dès la position de fermeture, dans le crochet d'extrémité 5 de la tige flexible 4. Lorsque, au cours de la manoeuvre d'ouverture on a atteint la position de coupure, la séparation des extrémités des deux tiges flexibles 4 et 7 s'opère à la vitesse relative V1 + V2, V1 étant la vitesse de rappel de la tige 7, et V2 la vitesse de rappel de la tige 4.Furthermore, the movable main contact 2 is integral with a flexible metal rod 7 engaged, from the closed position, in the end hook 5 of the flexible rod 4. When, during the maneuver the cut-off position has been reached, the ends of the two flexible rods 4 and 7 are separated at the relative speed V1 + V2, V1 being the return speed of the rod 7, and V2 the return speed rod 4.

Le dispositif de sectionnement à rupture brusque représenté sur la figure 3 comprend un premier contact principal 8 et un deuxième contact principal 9. Le bras 8 est mobile par rotation autour d'un axe 10 à une de ses extrémités. A l'autre extrémité est monté un axe 11 perpendiculaire au bras 8, au sommet duquel est mise en place une.lame métallique flexible 12 sur son support 13. Ce support 13 peut tourner librement autour de l'axe 11; la lame 12 peut également tourner suivant un certain angle autour de sa fixation 14 d'axe perpendiculaire à l'axe 11, l'extrémité de la lame métallique étant enroulée autour du support 14 pour faire ressort de telle sorte que la tension du ressort lorsque l'on écarte la lame, la ramène dans sa position d'équilibre verticale. L'extrémité libre 15 de la lame 12 est en forme de crochet.The snap disconnect device shown in Figure 3 includes a first main contact 8 and a second main contact 9. The arm 8 is movable by rotation about an axis 10 at one of its ends. At the other end is mounted an axis 11 perpendicular to the arm 8, at the top of which is placed a flexible metal blade 12 on its support 13. This support 13 can rotate freely around the axis 11; the blade 12 can also rotate at a certain angle around its attachment 14 with an axis perpendicular to the axis 11, the end of the metal blade being wound around the support 14 to spring so that the tension of the spring when we move the blade aside, bring it back to its vertical equilibrium position. The free end 15 of the blade 12 is in the form of a hook.

Le bras 9 du deuxième contact principal est mobile par rotation autour de l'axe 16 et porte une lame métallique flexible 17 relevée par rapport à l'horizontale d'un angle d'environ 80°, et s'engageant dans le crochet 14 de la lame 12. En position d'équilibre, la lame 17 et le bras 9 définissent un plan sensiblement vertical.The arm 9 of the second main contact is movable by rotation about the axis 16 and carries a flexible metal blade 17 raised relative to the horizontal by an angle of about 80 °, and engaging in the hook 14 of the blade 12. In the equilibrium position, the blade 17 and the arm 9 define a substantially vertical plane.

Lorsque les deux bras 8 et 9 constituant les contacts principaux sont mis en rotation autour de leurs axes respectifs 10 et 16, suivant des mouvements opposés, les bras 8 et 9 s'écartent l'un de l'autre et la lame métallique 17 glisse contre la lame métallique 12, comme représenté sur la figure 4. Ce mouvement provoque l'abaissement de la lame 17 et sa flexion suivant un angle par apport au plan vertical du bras 9. Dans le même mouvement la lame métallique 12 tourne autour de l'axe 11 et est relevée par rapport à sa position d'équilibre verticale.When the two arms 8 and 9 constituting the main contacts are rotated about their respective axes 10 and 16, in opposite movements, the arms 8 and 9 move away from each other and the metal blade 17 slides against the metal blade 12, as shown in Figure 4. This movement causes the lowering of the blade 17 and its bending at an angle by contribution to the vertical plane of the arm 9. In the same movement the metal blade 12 rotates around the axis 11 and is raised relative to its vertical equilibrium position.

A partir d'un angle de rotation déterminé, seule l'extrémité de la lame 17 est retenue dans le crochet 15 Une rotation supplémentaire entraine alors la rupture du contact et la lame 17 est ramenée vers sa position d'équilibre en raison de sa flexibilité, tandis que la lame 12 est ramenée en position verticale.From a determined angle of rotation, only the end of the blade 17 is retained in the hook 15 An additional rotation then causes contact breakage and the blade 17 is returned to its equilibrium position due to its flexibility, while the blade 12 is returned to the vertical position.

Ainsi les contacts auxiliaires constitués par les lames 12 et 17 s'écartent brutalement l'un de l'autre sous les deux mouvements de rotation des bras 8 et 9 et de rappel des lames 12 et 17 elles-mêmes. De plus, le mouvement de rappel des lames se fait dans un plan proche de la verticale et au cours du mouvement d'oscillation autour de la position d'équilibre, les lames ne peuvent se trouver à proximité des autres pôles de l'appareillage.Thus the auxiliary contacts formed by the blades 12 and 17 suddenly move away from one another under the two rotational movements of the arms 8 and 9 and return of the blades 12 and 17 themselves. In addition, the return movement of the blades takes place in a plane close to the vertical and during the oscillation movement around the equilibrium position, the blades cannot be located near the other poles of the apparatus.

La rotation du support 13 de la lame 12 peut être limitée de manière usuelle par une butée (non représentée) fixée sur l'axe 11. De plus un ressort de torsion peut être prévu pour ramener le support 13 dans sa position d'équilibre où la rotation de la lame 12 autour de sa fixation 14 s'effectue dans le plan vertical du bras 8 et de l'axe 11.The rotation of the support 13 of the blade 12 can be limited in the usual way by a stop (not shown) fixed on the axis 11. In addition, a torsion spring can be provided to bring the support 13 back into its equilibrium position where the blade 12 rotates around its attachment 14 takes place in the vertical plane of the arm 8 and of the axis 11.

Claims (5)

1. Dispositif de rupture brusque pour courant alternatif sur appareil de sectionnement dans l'air comprenant deux contacts principaux dont l'un au moins est mobile, portant chacun un contact auxiliaire mobile constitué par une lame métallique flexible, caractérisé en ce que l'une des lames flexibles est montée sur un support solidaire de l'un des deux contacts principaux, tandis que l'autre est fixée directement sur le deuxième contact principal, les deux lames étant disposées de telle sorte que l'une puisse entraîner l'autre sur un angle de rotation déterminé.1. Snap-action device for alternating current on a sectioning device in the air comprising two main contacts, at least one of which is movable, each carrying a movable auxiliary contact constituted by a flexible metal blade, characterized in that one flexible blades is mounted on a support integral with one of the two main contacts, while the other is fixed directly on the second main contact, the two blades being arranged so that one can drive the other on a determined angle of rotation. 2. Dispositif selon la revendication 1, caractérisé en ce que l'un des deux contacts principaux est constitué par un bras mobile par rotation dans un plan et porte une lame métallique flexible fixée par sa base , faisant avec le plan de rotation un angle voisin d'environ 80°.2. Device according to claim 1, characterized in that one of the two main contacts consists of an arm movable by rotation in a plane and carries a flexible metal blade fixed by its base, making with the plane of rotation a neighboring angle about 80 °. 3. Dispositif selon la revendication 1, caractérisé en ce que les contacts principaux sont constitués par deux bras tournant dans un même plan autour de deux axes parallèles, l'un des bras porte un axe perpendiculaire au plan de rotation, au sommet duquel est montée une lame métallique flexible sensiblement verticale, par son extrémité supérieure, de telle sorte qu'elle puisse tourner librement autour de l'axe, tandis que la deuxième lame métallique flexible sensiblement verticale est fixée par sa base au deuxième bras.3. Device according to claim 1, characterized in that the main contacts consist of two arms rotating in the same plane around two parallel axes, one of the arms carries an axis perpendicular to the plane of rotation, at the top of which is mounted a substantially vertical flexible metal blade, by its upper end, so that it can rotate freely around the axis, while the second substantially vertical flexible metal blade is fixed by its base to the second arm. 4. Dispositif selon la revendication 1,caractérisé en ce qu'il comporte un contact principal fixe comprenant un bras sur lequel est fixée une lame métallique flexible, et un contact principal mobile portant une lame métallique flexible montée dans son prolongement, les deux lames étant disposées de telle sorte que l'une puisse entraîner l'autre sur un angle déterminé.4. Device according to claim 1, characterized in that it comprises a fixed main contact comprising an arm on which is fixed a flexible metal blade, and a movable main contact carrying a flexible metal blade mounted in its extension, the two blades being arranged in such a way that one can drive the other over a determined angle. 5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'une des lames est engagée dans un crochet formé à l'extrémité de l'autre lame, en position de fermeture, la flexibilité des lames étant telle qu'elles restent en contact sur un angle . déterminé.5. Device according to any one of claims 1 to 4, characterized in that one of the blades is engaged in a hook formed at the end of the other blade, in the closed position, the flexibility of the blades being such let them stay in contact at an angle. determined.
EP80401301A 1979-09-12 1980-09-11 Disconnecting switch for alternating current electrical installations Withdrawn EP0026130A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7922742 1979-09-12
FR7922742A FR2468988A1 (en) 1979-09-12 1979-09-12 DISCONNECTION DEVICE FOR ELECTRICAL AC POWER PLANTS

Publications (1)

Publication Number Publication Date
EP0026130A1 true EP0026130A1 (en) 1981-04-01

Family

ID=9229579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401301A Withdrawn EP0026130A1 (en) 1979-09-12 1980-09-11 Disconnecting switch for alternating current electrical installations

Country Status (4)

Country Link
EP (1) EP0026130A1 (en)
BE (1) BE885191A (en)
FR (1) FR2468988A1 (en)
IT (1) IT1136497B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU168420U1 (en) * 2016-02-16 2017-02-02 Акционерное общество "Научно-исследовательский и проектно-конструкторский институт высоковольтного аппаратостроения (АО "НИИВА") Multi-amp disconnector

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709739A (en) * 1952-02-27 1955-05-31 Usco Power Equipment Corp Center break disconnect switch contacts
US2750460A (en) * 1952-12-12 1956-06-12 Ite Circuit Breaker Ltd Quick break attachment for high voltage disconnecting switches
US2849578A (en) * 1955-10-10 1958-08-26 Joslyn Mfg & Supply Co High voltage switch
US3005063A (en) * 1959-02-27 1961-10-17 Kearney James R Corp Self-aligning switch
US3230324A (en) * 1963-12-05 1966-01-18 Tomlinson F Johnson Quick break arc horn for horizontally opening air break switches
FR1536437A (en) * 1967-07-06 1968-08-16 Alsthom Cgee Disconnector with small current cut-off device
FR2041624A5 (en) * 1969-05-16 1971-01-29 Elect Meca Const

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709739A (en) * 1952-02-27 1955-05-31 Usco Power Equipment Corp Center break disconnect switch contacts
US2750460A (en) * 1952-12-12 1956-06-12 Ite Circuit Breaker Ltd Quick break attachment for high voltage disconnecting switches
US2849578A (en) * 1955-10-10 1958-08-26 Joslyn Mfg & Supply Co High voltage switch
US3005063A (en) * 1959-02-27 1961-10-17 Kearney James R Corp Self-aligning switch
US3230324A (en) * 1963-12-05 1966-01-18 Tomlinson F Johnson Quick break arc horn for horizontally opening air break switches
FR1536437A (en) * 1967-07-06 1968-08-16 Alsthom Cgee Disconnector with small current cut-off device
FR2041624A5 (en) * 1969-05-16 1971-01-29 Elect Meca Const

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU168420U1 (en) * 2016-02-16 2017-02-02 Акционерное общество "Научно-исследовательский и проектно-конструкторский институт высоковольтного аппаратостроения (АО "НИИВА") Multi-amp disconnector

Also Published As

Publication number Publication date
FR2468988B1 (en) 1982-02-26
BE885191A (en) 1980-12-31
IT8083430A0 (en) 1980-09-11
IT1136497B (en) 1986-08-27
FR2468988A1 (en) 1981-05-08

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