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EP1296342A1 - A fuse-disconnecting switch having a fuse holder and a control element for a security circuit - Google Patents

A fuse-disconnecting switch having a fuse holder and a control element for a security circuit Download PDF

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Publication number
EP1296342A1
EP1296342A1 EP02356177A EP02356177A EP1296342A1 EP 1296342 A1 EP1296342 A1 EP 1296342A1 EP 02356177 A EP02356177 A EP 02356177A EP 02356177 A EP02356177 A EP 02356177A EP 1296342 A1 EP1296342 A1 EP 1296342A1
Authority
EP
European Patent Office
Prior art keywords
lever
fuse
fuse holder
extension
disconnector
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
EP02356177A
Other languages
German (de)
French (fr)
Other versions
EP1296342B1 (en
Inventor
Olivier Soumillon
Alain Morel
Dominique Fiorini
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.)
Ferraz Shawmut SAS
Original Assignee
Ferraz Shawmut SAS
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 Ferraz Shawmut SAS filed Critical Ferraz Shawmut SAS
Priority to SI200230633T priority Critical patent/SI1296342T1/en
Publication of EP1296342A1 publication Critical patent/EP1296342A1/en
Application granted granted Critical
Publication of EP1296342B1 publication Critical patent/EP1296342B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/545—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with pivoting fuse carrier

Definitions

  • the invention relates to a fuse disconnect.
  • Such a switch should allow, among other things, to detect the imminence of fuse extraction from jaws with which it cooperates, that is to say the beginning fuse release movement.
  • IEC 60947-1 provides for a minimum time interval of 20 milliseconds between the actuation of a switch auxiliary and actual fuse extraction compared to its jaws, this in order to take into account the time of transmission of information, of the auxiliary element to the breaker or contactor, and the time of response from this circuit breaker or contactor.
  • a lever is moved by the fuse when setting the fuse holder in motion in a fuse extraction direction, this in order to control an auxiliary switch.
  • This system does not give not entirely satisfactory to the extent that, if the fuse holder is maneuvered quickly, the element of auxiliary control is controlled by the lever about 4 milliseconds before the actual fuse extraction by compared to its jaws, which is insufficient in the words of the aforementioned standard.
  • the invention relates to a disconnector fuse comprising a body, a movable fuse holder compared to this body and extending by a gripper to frontal control, a movable lever, depending on the presence and / or condition of a fuse in the fuse holder and / or the position of the fuse holder, and an element of pre-safety cut-off command of an installation electric.
  • This isolator is characterized in that the lever is provided with at least one extension arranged on the trajectory of a part of the fuse holder when it is moved from a first position, or closed position, in which the fuse is connected to the jaws of the switch, to a second position, or position open, in which the fuse can be extracted from fuse holder, the lever being movable by interaction between the aforementioned extension and the fuse holder which passes from the first to the second position, so that the lever actuates the pre-cut control element.
  • the invention detects the movement of the fuse holder from its initialization, which makes it possible to anticipate the displacement of the fuse with respect to the jaws and to lengthen the time interval between the triggering of pre-cut control element and extraction effective of the fuse with respect to the jaws.
  • the manufacturing tolerances of the plastic elements and metal jaws are such that we can not guarantee an interaction effective between the fuse and the lever only when the fuse holder rotated about 10 ° while, thanks to the invention, the pre-cut control element is securely actuated as soon as the fuse holder is lifted rotated 3 to 4 degrees.
  • the disconnector 1 shown in the figures comprises a body 2 intended to be mounted on a rail 3, for example by snapping.
  • the body 2 defines a receiving volume of a fuse holder 4 intended to receive a fuse 5, between an upstream jaw 6 and a downstream jaw 7, each electrically connected to a zone 8 or 9 for receiving and immobilizing the fuse.
  • the fuse holder 4 is articulated on the body 2 about an axis X 4 generally perpendicular to the plane of FIG. 3.
  • the fuse holder 4 comprises a sleeve 41 which forms a substantially cylindrical volume for receiving the fuse 5. It is noted that YY 'the geometric axis of the sleeve 41.
  • the fuse holder 4 also comprises a handle 42 which forms a gripping member for tilting the fuse holder 4 from the position of FIGS. 1 to 3 to that of FIG. passing through the positions of Figures 4 and 5, and vice versa.
  • the handle 42 is located on the front face 1a of the switch 1.
  • a housing 14 On the body 2 is mounted a housing 14 in which is disposed a micro-switch 15 of size V 4 connected by three lead wires 16a, 16b and 16c to a circuit not shown for controlling the supply voltage of the disconnector 1.
  • a lever 20, more particularly visible in Figure 7, is articulated on the body 2 about an axis X 20 generally parallel to the axis X 4 .
  • the lever 20 is provided with a head 201 for interacting, in some of the disconnector 1 use configurations, with the pallet 15a of the microswitch 15.
  • a metal shaft 21 forms the axis X 20 and is surrounded by a torsion spring 22 whose one end 221 is intended to abut against an internal rib 2a of the body 2, while its opposite end 222 is provided to come against the terminal 51 of the fuse 5 in place in the jaw 6, in the position of Figures 1 to 3.
  • the spring 22 exerts on the lever 20 a force F 1 tilting towards the fuse 5, that is to say a force tending to rotate the lever 20 in the trigonometric direction in Figure 3, around the X axis 20 .
  • the spring 22 is positioned so that when its end 222 does not interact with the terminal 51 of the fuse 5, it exerts on the lever 20 a force F ' 1 opposed to the force F 1 and having a tendency to tilt the lever 20 in the opposite trigonometric direction in FIG.
  • the lever 20 is provided with a tab 202 arranged facing the terminal 51 of the fuse 5 in the configuration of Figure 3 and, in particular, a striker 52 integrated in this terminal.
  • the firing pin 52 moves in the direction of arrow F 3 in Figure 3, which has the effect of pivoting the lever 20 about the X axis 20 in the direction trigonometric inverse in this figure.
  • the head 201 moves the pallet 15 a of the micro-contact 15, which has the effect of disconnecting the power supply of the disconnector 1 through the activation of a not shown control unit, the corresponding signal being transmitted by the cables 16a to 16c.
  • X-X ' a median axis of the main part 203 lever 20 located between its hinge zone 204 on the shaft 21 and the head 201.
  • the lever 20 carries a tab 205 se extending by a tab 206 which extends the opposite of the zone 204 with respect to the head 201.
  • the tab 205 forms a surface 207 inclined by relative to the axis X-X 'of an angle ⁇ whose value is between 40 ° and 60 °, preferably of the order of 50 °.
  • Tab 206 is defined between a top surface 208 and a lower surface 209, these surfaces being less inclined relative to the axis X-X 'as the surface 207.
  • the elements 205 and 206 extend between the step 43 and the handle 42. More specifically, the tab 205 rests by its surface 207 against a truncated anterior surface 431 of the step 43, the surfaces 207 and 431 being generally parallel between they. In this position, surface 209 is globally parallel to the upper surface 441 of the plate 44, the surfaces 209 and 441 not being in contact.
  • the tab 205 and the step 43 can be distant from each other, surfaces 207 and 431 being then not in contact.
  • the opening movement of the fuse holder is detected right from the beginning, that is after a few degrees, even though fuse 5 has not yet interacted with the tab 202 of the lever 20.
  • the activation of the micro-contact 15 is possible from the beginning of the pivoting movement of the fuse holder 4, thanks to the detection made by the extensions of the lever 20, constituted by the elements 205 and 206. This activation is maintained during the movement of fuse holder 4 by the interaction of walking 43 with tab 206, then fuse 5 with tab 202.

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  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The fuse carrier moves from a first, closed position to a second, open position. A lever (20) extension (205, 206) is located in the path of one of the components (43). The fuse (5) is connected to jaws of the isolator (1) in the closed position, and can be extracted from the fuse carrier (4) in the open position. The lever is moved by interaction between the extension and the carrier, as change over occurs. The lever actuates the preliminary cut-out control (15)

Description

L'invention a trait à un sectionneur à fusible.The invention relates to a fuse disconnect.

Dans le domaine de la protection des installations électriques contre les sur-intensités, il est connu d'utiliser un fusible logé dans un porte-fusible mobile par rapport au corps d'un sectionneur, le fusible pouvant coopérer avec des mâchoires reliées à des conducteurs amont et aval. Il est également connu d'équiper un tel sectionneur d'un élément de commande auxiliaire, tel qu'un interrupteur, pour limiter les risques de manipulation sous charge d'un tel sectionneur. En effet, dans le cas d'un sectionneur pouvant être intégré à une ligne d'alimentation d'une charge sous 800 volts et 150 ampères, il convient de ne pas manipuler le porte-fusible lorsqu'une telle différence de potentiel et une telle intensité sont appliquées aux bornes du sectionneur, faute de quoi un danger de création d'un arc électrique d'énergie élevée est présent. Il est donc nécessaire pour une personne intervenant sur une ligne électrique équipée d'un tel sectionneur d'isoler la ligne avant de manipuler le porte-fusible.In the field of plant protection against over-currents, it is known to use a fuse housed in a mobile fuse holder by to the body of a disconnector, the fuse cooperate with jaws connected to upstream drivers and downstream. It is also known to equip such a disconnector of an auxiliary control element, such as a switch, to limit the risk of handling under charge of such a disconnector. Indeed, in the case of a disconnector that can be integrated into a power line charging at 800 volts and 150 amperes, it is necessary to do not handle the fuse holder when such potential difference and such intensity are applied to the terminals of the disconnector, failing which a danger of creating a high energy arc is present. It is therefore necessary for a person intervening on a power line equipped with such isolator isolate the line before handling the fuse holder.

Cette notion de sécurité est bien comprise par les électriciens. Il se peut cependant qu'une personne non informée d'une intervention se produisant sur une ligne électrique referme par mégarde un contacteur d'alimentation de cette ligne, d'où un danger pour la personne qui intervient. C'est pourquoi, il est connu d'intégrer dans un sectionneur un interrupteur auxiliaire qui envoie un signal de commande à un interrupteur ou à un contacteur pour éviter une fermeture intempestive d'une ligne.This notion of security is well understood by electricians. It is possible, however, that a person informed of an intervention occurring on a line power supply inadvertently closes a power switch this line, which is dangerous for the person intervenes. That is why it is known to integrate into a switch an auxiliary switch that sends a signal to a switch or contactor for avoid an untimely closing of a line.

Un tel interrupteur devrait permettre, entre autres, de détecter l'imminence de l'extraction du fusible des mâchoires avec lesquelles il coopère, c'est-à-dire le début du mouvement de dégagement du fusible. Such a switch should allow, among other things, to detect the imminence of fuse extraction from jaws with which it cooperates, that is to say the beginning fuse release movement.

La fonction énoncée ci-dessus doit être efficace suffisamment tôt pour éviter que le fusible ne soit extrait des mâchoires en étant encore sous tension. C'est pourquoi, la norme CEI 60947-1 prévoit un intervalle de temps minimum de 20 millisecondes entre l'actionnement d'un interrupteur auxiliaire et l'extraction effective du fusible par rapport à ses mâchoires, ceci afin de prendre en compte le temps de transmission de l'information, de l'élément auxiliaire jusqu'au disjoncteur ou au contacteur, et le temps de réponse de ce disjoncteur ou de ce contacteur.The function stated above must be effective early enough to prevent the fuse being removed jaws while still under tension. That is why, IEC 60947-1 provides for a minimum time interval of 20 milliseconds between the actuation of a switch auxiliary and actual fuse extraction compared to its jaws, this in order to take into account the time of transmission of information, of the auxiliary element to the breaker or contactor, and the time of response from this circuit breaker or contactor.

Dans certains systèmes connus, un levier est déplacé par le fusible lors de la mise en mouvement du porte-fusible dans un sens d'extraction du fusible, ceci afin de commander un interrupteur auxiliaire. Ce système ne donne pas entièrement satisfaction dans la mesure où, si le porte-fusible est manoeuvré rapidement, l'élément de commande auxiliaire est commandé par le levier environ 4 millisecondes avant l'extraction effective du fusible par rapport à ses mâchoires, ce qui est insuffisant aux termes de la norme précitée.In some known systems, a lever is moved by the fuse when setting the fuse holder in motion in a fuse extraction direction, this in order to control an auxiliary switch. This system does not give not entirely satisfactory to the extent that, if the fuse holder is maneuvered quickly, the element of auxiliary control is controlled by the lever about 4 milliseconds before the actual fuse extraction by compared to its jaws, which is insufficient in the words of the aforementioned standard.

C'est à ce problème qu'entend plus particulièrement répondre l'invention en proposant un sectionneur dont la sécurité est grandement améliorée par rapport aux dispositifs connus, alors qu'il demeure aisé à manoeuvrer, fiable, et de prix de revient acceptable.It is this problem that is particularly answer the invention by proposing a disconnector whose security is greatly improved compared to known devices, while it remains easy to maneuver, reliable, and acceptable cost price.

Dans cet esprit, l'invention concerne un sectionneur à fusible comprenant un corps, un porte-fusible mobile par rapport à ce corps et se prolongeant par un préhenseur à commande frontale, un levier mobile, en fonction de la présence et/ou de l'état d'un fusible dans le porte-fusible et/ou de la position du porte-fusible, et un élément de commande de pré-coupure de sécurité d'une installation électrique. Ce sectionneur est caractérisé en ce que le levier est pourvu d'au moins une extension disposée sur la trajectoire d'une partie du porte-fusible lorsque celui-ci est déplacé d'une première position, ou position fermée, dans laquelle le fusible est connecté à des mâchoires du sectionneur, vers une seconde position, ou position ouverte, dans laquelle le fusible peut être extrait du porte-fusible, le levier étant déplaçable par interaction entre l'extension précitée et le porte-fusible qui passe de la première à la seconde position, de telle sorte que le levier actionne l'élément de commande de pré-coupure.In this spirit, the invention relates to a disconnector fuse comprising a body, a movable fuse holder compared to this body and extending by a gripper to frontal control, a movable lever, depending on the presence and / or condition of a fuse in the fuse holder and / or the position of the fuse holder, and an element of pre-safety cut-off command of an installation electric. This isolator is characterized in that the lever is provided with at least one extension arranged on the trajectory of a part of the fuse holder when it is moved from a first position, or closed position, in which the fuse is connected to the jaws of the switch, to a second position, or position open, in which the fuse can be extracted from fuse holder, the lever being movable by interaction between the aforementioned extension and the fuse holder which passes from the first to the second position, so that the lever actuates the pre-cut control element.

Grâce à l'invention, on détecte le mouvement du porte-fusible dès son initialisation, ce qui permet d'anticiper le déplacement du fusible par rapport aux mâchoires et d'allonger l'intervalle de temps entre le déclenchement de l'élément de commande de pré-coupure et l'extraction effective du fusible par rapport aux mâchoires. En effet, dans les systèmes connus, les tolérances de fabrication des éléments en matière plastique et des mâchoires métalliques sont telles que l'on ne peut garantir une interaction effective entre le fusible et le levier que lorsque le porte-fusible a pivoté d'environ 10° alors que, grâce à l'invention, l'élément de commande de pré-coupure est actionné de façon sûre dès que le préhenseur du porte-fusible a pivoté de 3 à 4°.Thanks to the invention, it detects the movement of the fuse holder from its initialization, which makes it possible to anticipate the displacement of the fuse with respect to the jaws and to lengthen the time interval between the triggering of pre-cut control element and extraction effective of the fuse with respect to the jaws. Indeed, in known systems, the manufacturing tolerances of the plastic elements and metal jaws are such that we can not guarantee an interaction effective between the fuse and the lever only when the fuse holder rotated about 10 ° while, thanks to the invention, the pre-cut control element is securely actuated as soon as the fuse holder is lifted rotated 3 to 4 degrees.

Selon des aspects avantageux mais non obligatoires de l'invention, le sectionneur incorpore une ou plusieurs des caractéristiques suivantes :

  • Le levier est articulé autour d'un axe fixe par rapport au corps et est soumis, lorsque le porte-fusible est dans la première position, à un effort élastique tendant à l'éloigner de l'élément de commande de pré-coupure.
  • Le porte-fusible est articulé autour d'un axe fixe par rapport au corps, ce porte-fusible passant de la première à la seconde position par pivotement autour de cet axe.
  • L'élément de commande de pré-coupure est un micro-contact dont la palette forme une partie d'actionnement. Dans ce cas, le levier est avantageusement pourvu d'une tête apte à venir en appui contre cette palette en fonction de la position du levier alors que l'extension précitée s'étend, par rapport à cette tête, sensiblement à l'opposé d'une zone d'articulation du levier sur le corps du sectionneur. On peut prévoir que l'extension précitée s'étend, par rapport à un axe médian de la partie principale du levier, sensiblement à l'opposé de la tête précitée et forme une rampe inclinée par rapport à cet axe, cette rampe étant apte à entrer en contact et à glisser contre une partie du porte-fusible. Cette extension peut former une surface, prolongeant la rampe inclinée apte à entrer en contact et à glisser contre la partie précitée du porte-fusible, après que la rampe inclinée soit dégagée par rapport à cette partie, lors du passage du porte-fusible de sa première à sa seconde position.
  • Le porte-fusible forme une rampe apte à exercer sur l'extension du levier un effort de déplacement du levier. Dans ce cas, cette rampe est avantageusement ménagée à proximité du préhenseur, de telle sorte que son mouvement a une amplitude importante dès le début du déplacement du porte-fusible.
  • Le levier porte une patte apte à subir un effort de déplacement du levier exercé par un percuteur ou une borne du fusible. Cette patte permet, en particulier, de réagir à un éclatement du fusible et de maintenir l'élément de commande de pré-coupure en configuration active, y compris lorsque l'extension du levier n'interagit plus avec le porte-fusible.
According to advantageous but not obligatory aspects of the invention, the disconnector incorporates one or more of the following characteristics:
  • The lever is articulated about a fixed axis relative to the body and is subjected, when the fuse holder is in the first position, to an elastic force tending to move away from the pre-cut control element.
  • The fuse holder is articulated about a fixed axis relative to the body, this fuse holder passing from the first to the second position by pivoting about this axis.
  • The pre-cut control element is a micro-contact whose pallet forms an actuating part. In this case, the lever is advantageously provided with a head adapted to bear against this pallet according to the position of the lever while the aforementioned extension extends, with respect to this head, substantially opposite the a zone of articulation of the lever on the body of the disconnector. It can be provided that the aforementioned extension extends, with respect to a central axis of the main part of the lever, substantially opposite to the aforementioned head and forms a ramp inclined with respect to this axis, this ramp being adapted to contact and slide against part of the fuse holder. This extension can form a surface, extending the inclined ramp able to come into contact with and slide against the aforementioned part of the fuse holder, after the inclined ramp is disengaged with respect to this part, during the passage of the fuse holder of its first to his second position.
  • The fuse holder forms a ramp capable of exerting on the extension of the lever a force of displacement of the lever. In this case, this ramp is advantageously arranged close to the gripper, so that its movement has a large amplitude from the beginning of the movement of the fuse holder.
  • The lever carries a leg adapted to undergo a force of movement of the lever exerted by a striker or a terminal of the fuse. This tab makes it possible, in particular, to react to a bursting of the fuse and to maintain the pre-cut control element in an active configuration, even when the extension of the lever no longer interacts with the fuse holder.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaítront plus clairement à la lumière de la description qui va suivre d'un mode de réalisation d'un sectionneur conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue en perspective d'un sectionneur conforme à l'invention ;
  • La figure 2 est une vue de face du sectionneur de la figure 1 ;
  • La figure 3 est une coupe selon la ligne III-III à la figure 1 ;
  • La figure 4 est une vue analogue à la figure 3 au début d'une ouverture du sectionneur ;
  • La figure 5 est une vue analogue à la figure 3 lors d'une étape ultérieure d'ouverture du sectionneur ;
  • La figure 6 est une vue analogue à la figure 3 au terme de l'ouverture du sectionneur et
  • La figure 7 est une vue en perspective du levier d'actionnement du sectionneur des figures 1 à 6.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a disconnector according to its principle, given solely by way of example and with reference to the accompanying drawings in which:
  • Figure 1 is a perspective view of a disconnector according to the invention;
  • Figure 2 is a front view of the disconnector of Figure 1;
  • Figure 3 is a section along the line III-III in Figure 1;
  • Figure 4 is a view similar to Figure 3 at the beginning of an opening of the disconnector;
  • Figure 5 is a view similar to Figure 3 in a subsequent step of opening the disconnector;
  • FIG. 6 is a view similar to FIG. 3 at the end of the opening of the disconnector and
  • Figure 7 is a perspective view of the operating lever of the disconnector of Figures 1 to 6.

Le sectionneur 1 représenté sur les figures comprend un corps 2 prévu pour être monté sur un rail 3, par exemple par encliquetage. Le corps 2 définit un volume de réception d'un porte-fusible 4 destiné à recevoir un fusible 5, entre une mâchoire amont 6 et une mâchoire aval 7, chacune reliée électriquement à une zone 8 ou 9 de réception et d'immobilisation de l'extrémité dénudée d'un câble conducteur 10 ou 11, chaque zone comprenant un étrier 12 ou 13 et une vis de blocage 12a, 13a.The disconnector 1 shown in the figures comprises a body 2 intended to be mounted on a rail 3, for example by snapping. The body 2 defines a receiving volume of a fuse holder 4 intended to receive a fuse 5, between an upstream jaw 6 and a downstream jaw 7, each electrically connected to a zone 8 or 9 for receiving and immobilizing the fuse. stripped end of a conductor cable 10 or 11, each zone comprising a yoke 12 or 13 and a locking screw 12 a, 13 a.

Le porte-fusible 4 est articulé sur le corps 2 autour d'un axe X4 globalement perpendiculaire au plan de la figure 3. Le porte-fusible 4 comporte un manchon 41 qui forme un volume sensiblement cylindrique de réception du fusible 5. On note Y-Y' l'axe géométrique du manchon 41. Le porte-fusible 4 comprend également une poignée 42 qui forme un organe de préhension pour faire basculer le porte-fusible 4 de la position des figures 1 à 3 à celle de la figure 6, en passant par les positions des figures 4 et 5, et réciproquement. La poignée 42 est située sur la face avant 1a du sectionneur 1.The fuse holder 4 is articulated on the body 2 about an axis X 4 generally perpendicular to the plane of FIG. 3. The fuse holder 4 comprises a sleeve 41 which forms a substantially cylindrical volume for receiving the fuse 5. It is noted that YY 'the geometric axis of the sleeve 41. The fuse holder 4 also comprises a handle 42 which forms a gripping member for tilting the fuse holder 4 from the position of FIGS. 1 to 3 to that of FIG. passing through the positions of Figures 4 and 5, and vice versa. The handle 42 is located on the front face 1a of the switch 1.

Sur le corps 2 est monté un boítier 14 dans lequel est disposé un micro-contact 15 de taille V4 relié par trois câbles conducteurs 16a, 16b et 16c à un circuit non représenté de commande de l'alimentation en tension du sectionneur 1.On the body 2 is mounted a housing 14 in which is disposed a micro-switch 15 of size V 4 connected by three lead wires 16a, 16b and 16c to a circuit not shown for controlling the supply voltage of the disconnector 1.

Un levier 20, plus particulièrement visible à la figure 7, est articulé sur le corps 2 autour d'un axe X20 globalement parallèle à l'axe X4. Le levier 20 est pourvu d'une tête 201 destinée à interagir, dans certaines configurations d'utilisation du sectionneur 1, avec la palette 15a du micro-contact 15.A lever 20, more particularly visible in Figure 7, is articulated on the body 2 about an axis X 20 generally parallel to the axis X 4 . The lever 20 is provided with a head 201 for interacting, in some of the disconnector 1 use configurations, with the pallet 15a of the microswitch 15.

Un arbre métallique 21 matérialise l'axe X20 et est entouré par un ressort de torsion 22 dont une première extrémité 221 est destinée à venir en appui contre une nervure interne 2a du corps 2, alors que son extrémité opposée 222 est prévue pour venir en appui contre la borne 51 du fusible 5 en place dans la mâchoire 6, dans la position des figures 1 à 3.A metal shaft 21 forms the axis X 20 and is surrounded by a torsion spring 22 whose one end 221 is intended to abut against an internal rib 2a of the body 2, while its opposite end 222 is provided to come against the terminal 51 of the fuse 5 in place in the jaw 6, in the position of Figures 1 to 3.

Du fait de sa coopération avec le corps 2 et le fusible 5, le ressort 22 exerce sur le levier 20 un effort F1 de basculement en direction du fusible 5, c'est-à-dire un effort ayant tendance à faire pivoter le levier 20 dans le sens trigonométrique à la figure 3, autour de l'axe X20.Due to its cooperation with the body 2 and the fuse 5, the spring 22 exerts on the lever 20 a force F 1 tilting towards the fuse 5, that is to say a force tending to rotate the lever 20 in the trigonometric direction in Figure 3, around the X axis 20 .

Le ressort 22 est positionné de telle sorte que, lorsque son extrémité 222 n'interagit pas avec la borne 51 du fusible 5, il exerce sur le levier 20 un effort F'1 opposé à l'effort F1 et ayant tendance à faire basculer le levier 20 dans le sens trigonométrique inverse à la figure 3.The spring 22 is positioned so that when its end 222 does not interact with the terminal 51 of the fuse 5, it exerts on the lever 20 a force F ' 1 opposed to the force F 1 and having a tendency to tilt the lever 20 in the opposite trigonometric direction in FIG.

Le levier 20 est pourvu d'une patte 202 disposée en regard de la borne 51 du fusible 5 dans la configuration de la figure 3 et, en particulier, d'un percuteur 52 intégré dans cette borne. Ainsi, en cas d'éclatement du fusible 5, le percuteur 52 se déplace dans le sens de la flèche F3 à la figure 3, ce qui a pour effet de faire pivoter le levier 20 autour de l'axe X20 dans le sens trigonométrique inverse sur cette figure.The lever 20 is provided with a tab 202 arranged facing the terminal 51 of the fuse 5 in the configuration of Figure 3 and, in particular, a striker 52 integrated in this terminal. Thus, in case of bursting of the fuse 5, the firing pin 52 moves in the direction of arrow F 3 in Figure 3, which has the effect of pivoting the lever 20 about the X axis 20 in the direction trigonometric inverse in this figure.

Si le levier 20 pivote dans le sens trigonométrique inverse sur la figure 3 à partir de la position représentée, la tête 201 déplace la palette 15a du micro-contact 15, ce qui a pour effet de couper l'alimentation du sectionneur 1 en tension grâce à l'activation d'une unité de commande non représentée, le signal correspondant étant transmis par les câbles 16a à 16c.If the lever 20 pivots in the opposite trigonometric direction in FIG. 3 from the position shown, the head 201 moves the pallet 15 a of the micro-contact 15, which has the effect of disconnecting the power supply of the disconnector 1 through the activation of a not shown control unit, the corresponding signal being transmitted by the cables 16a to 16c.

On note X-X' un axe médian de la partie principale 203 du levier 20 située entre sa zone 204 d'articulation sur l'arbre 21 et la tête 201. A l'opposé de la tête 201 par rapport à l'axe X-X', le levier 20 porte une patte 205 se prolongeant par une languette 206 qui s'étend à l'opposé de la zone 204 par rapport à la tête 201.We denote X-X 'a median axis of the main part 203 lever 20 located between its hinge zone 204 on the shaft 21 and the head 201. Opposite the head 201 by relative to the axis X-X ', the lever 20 carries a tab 205 se extending by a tab 206 which extends the opposite of the zone 204 with respect to the head 201.

La patte 205 forme une surface 207 inclinée par rapport à l'axe X-X' d'un angle α dont la valeur est comprise entre 40° et 60°, de préférence de l'ordre de 50°. La languette 206 est définie entre une surface supérieure 208 et une surface inférieure 209, ces surfaces étant moins inclinées par rapport à l'axe X-X' que la surface 207.The tab 205 forms a surface 207 inclined by relative to the axis X-X 'of an angle α whose value is between 40 ° and 60 °, preferably of the order of 50 °. Tab 206 is defined between a top surface 208 and a lower surface 209, these surfaces being less inclined relative to the axis X-X 'as the surface 207.

Dans la position fermée représentée à la figure 3, position dans laquelle les bornes 51 et 53 du fusible 5 sont en place dans les mâchoires 6 et 7, la languette 206 est engagée en avant d'une marche 43 du porte-fusible 4. Cette marche prolonge un plateau 44 globalement perpendiculaire à l'axe Y-Y' qui est confondu avec l'axe central du fusible 5 en place dans le porte-fusible 4.In the closed position shown in FIG. position in which the terminals 51 and 53 of the fuse 5 are in place in the jaws 6 and 7, the tongue 206 is engaged in front of a step 43 of the fuse holder 4. This walk extends a plateau 44 globally perpendicular to the Y-Y 'axis which coincides with the axis central fuse 5 in place in the fuse holder 4.

En positon fermée du porte-fusible 4, les éléments 205 et 206 s'étendent entre la marche 43 et la poignée 42. Plus précisément, la patte 205 repose par sa surface 207 contre une surface antérieure tronquée 431 de la marche 43, les surfaces 207 et 431 étant globalement parallèles entre elles. Dans cette position, la surface 209 est globalement parallèle à la surface supérieure 441 du plateau 44, les surfaces 209 et 441 n'étant pas en contact.In the closed position of the fuse holder 4, the elements 205 and 206 extend between the step 43 and the handle 42. More specifically, the tab 205 rests by its surface 207 against a truncated anterior surface 431 of the step 43, the surfaces 207 and 431 being generally parallel between they. In this position, surface 209 is globally parallel to the upper surface 441 of the plate 44, the surfaces 209 and 441 not being in contact.

En variante, la patte 205 et la marche 43 peuvent être distantes l'une de l'autre, les surfaces 207 et 431 n'étant alors pas en contact.In a variant, the tab 205 and the step 43 can be distant from each other, surfaces 207 and 431 being then not in contact.

Lorsqu'on souhaite ouvrir le sectionneur 1, c'est-à-dire faire pivoter le porte-fusible 4 dans le sens trigonométrique aux figures 4 à 6, on exerce sur la poignée 42 un effort F4 visant à abaisser cette poignée. Du fait du début du mouvement de la poignée 42, la marche 43 exerce sur la patte 205 un effort F5 de poussée dirigé vers le haut et vers la gauche aux figures 3 et 4. Ceci a pour effet d'amener la tête 201 à appliquer sur la palette 15a du micro-contact 15 un effort F6 d'activation du micro-contact, ce qui est détecté par l'unité de commande reliée aux câbles 16a à 16c.When it is desired to open the disconnector 1, that is to say rotate the fuse holder 4 in the trigonometric direction in Figures 4 to 6, it exerts on the handle 42 a force F 4 to lower the handle. Due to the beginning of the movement of the handle 42, the step 43 exerts on the lug 205 a thrust force F 5 directed upwards and to the left in FIGS. 3 and 4. This has the effect of causing the head 201 to applying to the pallet 15 a of the microswitch 15 a force F 6 activation of the microswitch, which is detected by the control unit connected to the cables 16a to 16c.

Ainsi, grâce à la patte 205 et à la géométrie du porte-fusible 4, le mouvement d'ouverture du porte-fusible est détecté dès son début, c'est-à-dire après quelques degrés, même si le fusible 5 n'a pas encore interagi avec la patte 202 du levier 20.Thus, thanks to the tab 205 and the geometry of the fuse holder 4, the opening movement of the fuse holder is detected right from the beginning, that is after a few degrees, even though fuse 5 has not yet interacted with the tab 202 of the lever 20.

Lorsque le mouvement de pivotement du porte-fusible 4 se prolonge, la patte 43 vient au contact de la surface 209 de la languette 206 et maintient ainsi la tête 201 en appui contre la palette 15a ce qui, là encore, peut être détecté par une unité de commande raccordée au câble 16a à 16c, dans la mesure où l'effort F5 est maintenu.When the pivotal movement of the fuse holder 4 is extended, the tab 43 comes into contact with the surface 209 of the tab 206 and thus keeps the head 201 bearing against the pallet 15 in which, again, can be detected by a control unit connected to the cable 16 has 16 c , to the extent that the effort F 5 is maintained.

Il est alors possible d'atteindre la position de la figure 6 où le fusible 5 peut être aisément extrait du manchon 41, comme représenté par la flèche F7. Dans cette position, l'effort F'1 garantit que le micro-contact 15 demeure activé.It is then possible to reach the position of FIG. 6 where the fuse 5 can be easily extracted from the sleeve 41, as represented by the arrow F 7 . In this position, the force F ' 1 ensures that the micro-contact 15 remains activated.

Au vu de ce qui précède, l'activation du micro-contact 15 est possible dès le début du mouvement de pivotement du porte-fusible 4, grâce à la détection opérée par les extensions du levier 20, constituées par les éléments 205 et 206. Cette activation est maintenue au cours du mouvement du porte-fusible 4 par l'interaction de la marche 43 avec la languette 206, puis du fusible 5 avec la patte 202.In view of the above, the activation of the micro-contact 15 is possible from the beginning of the pivoting movement of the fuse holder 4, thanks to the detection made by the extensions of the lever 20, constituted by the elements 205 and 206. This activation is maintained during the movement of fuse holder 4 by the interaction of walking 43 with tab 206, then fuse 5 with tab 202.

Claims (10)

Sectionneur à fusible comprenant un corps, un porte-fusible mobile par rapport audit corps et se prolongeant par un préhenseur à commande frontale, un levier mobile en fonction de la présence et/ou de l'état d'un fusible dans ledit porte-fusible et/ou de la position dudit porte-fusible, et un élément de commande de pré-coupure de sécurité d'une installation électrique, caractérisé en ce que ledit levier (20) est pourvu d'au moins une extension (205, 206) disposée sur la trajectoire d'une partie (43) dudit porte-fusible lorsque celui-ci est déplacé d'une première position (figure 3), ou position fermée, dans laquelle ledit fusible (5) est connecté à des mâchoires (6, 7) dudit sectionneur (1), vers une seconde position, ou position ouverte (figure 6), dans laquelle ledit fusible peut être extrait (F7) dudit porte-fusible (4), ledit levier étant déplaçable par interaction (F5) entre ladite extension et ledit porte-fusible passant de ladite première à ladite seconde position, de telle sorte que ledit levier actionne (F6) ledit élément (15) de commande de pré-coupure.Fused disconnector comprising a body, a fuse holder movable relative to said body and extending by a front-end gripper, a movable lever according to the presence and / or state of a fuse in said fuse holder and / or the position of said fuse holder, and a pre-cutoff control element of an electrical installation, characterized in that said lever (20) is provided with at least one extension (205, 206) arranged in the path of a portion (43) of said fuse holder when it is moved from a first position (FIG. 3), or closed position, wherein said fuse (5) is connected to jaws (6, 7) of said isolator (1), to a second position, or open position (Figure 6), wherein said fuse can be extracted (F 7 ) from said fuse holder (4), said lever being movable by interaction (F 5 ) between said extension and said fuse holder passing from said first to said second position, such that said lever actuates (F 6 ) said pre-cut control element (15). Sectionneur selon la revendication 1, caractérisé en ce que ledit levier (20) est articulé autour d'un axe (X20) fixe par rapport audit corps (2) et est soumis, lorsque ledit porte-fusible (4) est dans ladite première position, à un effort élastique (F1) tendant à l'éloigner dudit élément (15) de commande de pré-coupure.Disconnector according to claim 1, characterized in that said lever (20) is articulated about an axis (X 20 ) fixed relative to said body (2) and is subjected, when said fuse holder (4) is in said first position, an elastic force (F 1 ) tending to move away from said pre-cut control element (15). Sectionneur selon l'une des revendications précédentes, caractérisé en ce que ledit porte-fusible (4) est articulé autour d'un axe (X4) fixe par rapport audit corps (2), ledit porte-fusible passant de ladite première (figure 3) à ladite seconde (figure 6) position par pivotement autour dudit axe.Disconnector according to one of the preceding claims, characterized in that said fuse holder (4) is articulated about an axis (X 4 ) fixed relative to said body (2), said fuse holder passing from said first (FIG. 3) to said second (Figure 6) position by pivoting about said axis. Sectionneur selon l'une des revendications précédentes, caractérisé en ce que ledit élément de commande de pré-coupure est un micro-contact (15) dont la palette (15a) forme une partie d'actionnement.Disconnector according to one of the preceding claims, characterized in that said pre-cut control element is a micro-contact (15) whose blade (15 a) forms an actuating part. Sectionneur selon la revendication 4, caractérisé en ce que ledit levier (20) est pourvu d'une tête (201) apte à venir en appui (F6) contre ladite palette en fonction de la position dudit levier et en ce que ladite extension (205, 206) s'étend, par rapport à ladite tête sensiblement à l'opposé d'une zone (204) d'articulation dudit levier sur ledit corps (2).Disconnector according to claim 4, characterized in that said lever (20) is provided with a head (201) adapted to bear (F 6 ) against said pallet as a function of the position of said lever and in that said extension ( 205, 206) extends relative to said head substantially opposite an area (204) of articulation of said lever on said body (2). Sectionneur selon la revendication 5, caractérisé en ce que ladite extension (205, 206) s'étend, par rapport à un axe médian (X-X') de la partie principale (203) dudit levier (20), sensiblement à l'opposé de ladite tête (201) et forme une rampe (207) inclinée (α) par rapport audit axe et apte à entrer en contact et à glisser contre une partie (43) dudit porte-fusible (4).Disconnector according to claim 5, characterized in that said extension (205, 206) extends, with respect to a median axis (X-X ') of the main part (203) of said lever (20), substantially to the opposite said head (201) and forms a ramp (207) inclined (α) relative to said axis and adapted to come into contact and slide against a portion (43) of said fuse holder (4). Sectionneur selon la revendication 6, caractérisé en ce que ladite extension (205, 206) forme une surface (209), prolongeant ladite rampe inclinée (207) et apte à entrer en contact et à glisser contre ladite partie (43) dudit porte-fusible (4), après que ladite rampe inclinée soit dégagée par rapport à ladite partie, lors du passage dudit porte-fusible de ladite première (figure 3) à ladite seconde (figure 6) position.Disconnector according to claim 6, characterized in that said extension (205, 206) forms a surface (209), extending said inclined ramp (207) and adapted to come into contact and slide against said portion (43) of said fuse holder (4) after said inclined ramp is disengaged from said portion, when passing said fuse holder from said first (Figure 3) to said second (Figure 6) position. Sectionneur selon l'une des revendications précédentes, caractérisé en ce que ledit porte-fusible (4) forme une rampe (431) apte à exercer sur ladite extension (205, 206) un effort (F5) de déplacement dudit levier (20). Disconnector according to one of the preceding claims, characterized in that said fuse holder (4) forms a ramp (431) adapted to exert on said extension (205, 206) a force (F 5 ) for moving said lever (20) . Sectionneur selon la revendication 9, caractérisé en ce que ladite rampe (431) est ménagée à proximité dudit préhenseur (42).Disconnector according to claim 9, characterized in that said ramp (431) is formed near said gripper (42). Sectionneur selon l'une des revendications précédentes, caractérisé en ce que ledit levier (20) porte une patte (202) apte à subir un effort de déplacement dudit levier exercé par un percuteur (52) ou une borne (51) dudit fusible (5).Disconnector according to one of the preceding claims, characterized in that said lever (20) carries a tab (202) adapted to undergo a displacement force of said lever exerted by a striker (52) or a terminal (51) of said fuse (5). ).
EP02356177A 2001-09-19 2002-09-18 A fuse-disconnecting switch having a fuse holder and a control element for a security circuit Expired - Lifetime EP1296342B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200230633T SI1296342T1 (en) 2001-09-19 2002-09-18 A fuse-disconnecting switch having a fuse holder and a control element for a security circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0112086A FR2829870B1 (en) 2001-09-19 2001-09-19 FUSE DISCONNECT COMPRISING A FUSE HOLDER AND A CONTROL MEMBER FOR A SAFETY CIRCUIT
FR0112086 2001-09-19

Publications (2)

Publication Number Publication Date
EP1296342A1 true EP1296342A1 (en) 2003-03-26
EP1296342B1 EP1296342B1 (en) 2007-10-31

Family

ID=8867418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02356177A Expired - Lifetime EP1296342B1 (en) 2001-09-19 2002-09-18 A fuse-disconnecting switch having a fuse holder and a control element for a security circuit

Country Status (6)

Country Link
EP (1) EP1296342B1 (en)
AT (1) ATE377253T1 (en)
DE (1) DE60223214T2 (en)
ES (1) ES2295305T3 (en)
FR (1) FR2829870B1 (en)
SI (1) SI1296342T1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840920A3 (en) * 2006-03-28 2009-07-08 Siemens Aktiengesellschaft Cover for a safety circuit breaker and safety circuit breaker
CN100562960C (en) * 2006-10-11 2009-11-25 上海华通电气有限公司 isolating switch fuse group
WO2010082905A1 (en) * 2009-01-13 2010-07-22 Eti Elektroelement D.D. Circuit breaking fuse and disconnect switch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462017A1 (en) * 1979-07-20 1981-02-06 Legrand Sa Fuse box with verification of fuse capsule insertion - using sprung finger on shoulder of lever in fuse box and linked to signalling device
EP0068956A1 (en) * 1981-06-30 1983-01-05 Legrand Circuit breaker with built-in fuse and disconnection switch
FR2551915A1 (en) * 1983-09-08 1985-03-15 Hager Electro Improvements to circuit cut-outs with oscillating holder carrying a fuse cartridge and forming a cam for control of an auxiliary circuit
FR2818005A1 (en) * 2000-12-08 2002-06-14 Ferraz Shawmut Electrical installation over voltage surges fuse protection having body with movable position fuse carrier actioned pretensioner with moving lever having spring.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462017A1 (en) * 1979-07-20 1981-02-06 Legrand Sa Fuse box with verification of fuse capsule insertion - using sprung finger on shoulder of lever in fuse box and linked to signalling device
EP0068956A1 (en) * 1981-06-30 1983-01-05 Legrand Circuit breaker with built-in fuse and disconnection switch
FR2551915A1 (en) * 1983-09-08 1985-03-15 Hager Electro Improvements to circuit cut-outs with oscillating holder carrying a fuse cartridge and forming a cam for control of an auxiliary circuit
FR2818005A1 (en) * 2000-12-08 2002-06-14 Ferraz Shawmut Electrical installation over voltage surges fuse protection having body with movable position fuse carrier actioned pretensioner with moving lever having spring.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840920A3 (en) * 2006-03-28 2009-07-08 Siemens Aktiengesellschaft Cover for a safety circuit breaker and safety circuit breaker
CN100562960C (en) * 2006-10-11 2009-11-25 上海华通电气有限公司 isolating switch fuse group
WO2010082905A1 (en) * 2009-01-13 2010-07-22 Eti Elektroelement D.D. Circuit breaking fuse and disconnect switch

Also Published As

Publication number Publication date
ATE377253T1 (en) 2007-11-15
DE60223214D1 (en) 2007-12-13
EP1296342B1 (en) 2007-10-31
FR2829870B1 (en) 2003-12-19
DE60223214T2 (en) 2008-08-14
ES2295305T3 (en) 2008-04-16
SI1296342T1 (en) 2008-02-29
FR2829870A1 (en) 2003-03-21

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