EP0907195A1 - Gas blast switch with rack and pinion gear - Google Patents

Gas blast switch with rack and pinion gear Download PDF

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Publication number
EP0907195A1
EP0907195A1 EP98402423A EP98402423A EP0907195A1 EP 0907195 A1 EP0907195 A1 EP 0907195A1 EP 98402423 A EP98402423 A EP 98402423A EP 98402423 A EP98402423 A EP 98402423A EP 0907195 A1 EP0907195 A1 EP 0907195A1
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EP
European Patent Office
Prior art keywords
contact
integral
axis
rack
rod
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Withdrawn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
EP98402423A
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German (de)
French (fr)
Inventor
Alain Girodet
Marc Vittoz
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.)
Grid Solutions SAS
Original Assignee
GEC Alsthom T&D SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEC Alsthom T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0907195A1 publication Critical patent/EP0907195A1/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Withdrawn legal-status Critical Current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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/904—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism characterised by the transmission between operating mechanism and piston or movable contact
    • 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
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • 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
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions

Definitions

  • the invention relates to a compressed gas switch with a gear. with racks.
  • a gear. with racks Such a switch is already known from the European patent N ° 0313813.
  • the gears of the gear to racks are placed downstream of the neck of the nozzle channeling the hot gases to the cut. This results in damage over time to this gear and the object of the invention is to remedy this drawback.
  • the invention relates to a compressed gas switch comprising a first contact part having a hollow wear contact into which a rod-shaped wear contact is introduced on closing on a second contact piece, an insulating nozzle coaxial with the two pieces of contacts and fixed on the first contact piece whose neck is, at the closure, crossed by the wear contact of the second contact part and connects a gas compression chamber to an exhaust chamber, the wear contact of the second contact part being also movable along of an axis and is moved in the opposite direction of the wear contact of the first contact piece by a rack and pinion gear arranged to transmit in opposite direction a movement from the first contact piece to the second contact part, characterized in that this rack and pinion gear is arranged upstream of the nozzle neck.
  • this rack and pinion gear is located outside the passage of the hot gases.
  • FIG. 1 very schematically illustrates a circuit breaker according to the invention in an open position at cut-off.
  • Figure 2 illustrates the circuit breaker of Figure 1 in the closed position.
  • two contact parts are shown. 1.2 respectively in an envelope, not shown, filled an insulating gas such as SF6 under a pressure of a few bars, which can be engaged in and out of each other, along a longitudinal axis 3.
  • an insulating gas such as SF6
  • These two contact parts 1, 2 have essentially a symmetry of rotation, that is to say they are essentially tubular, and comprise each respectively a permanent current contact 4 respectively 5 and a wear contact 6 respectively 7.
  • the wear contact 6 is hollow while the wear contact 7 has the form of a rod which comes to be introduced, at the cut as shown in figure 2, in the hollow wear contact 6.
  • the contact piece 1 can slide along the axis 3. The displacement of the contact piece 1 along the axis 3 is obtained by the axial translation a control rod 8 which comes out of the envelope.
  • This piece of contacts 1 includes an insulating nozzle 9 with a neck 10, arranged coaxially between permanent current contact 4 and wear contact 6 and connected rigidly to the permanent current contact 4 and to the wear contact 6.
  • the part 1 also includes an annular compression chamber 11 by piston, which can be communicated via valves unidirectional 12 formed in a ring connecting the permanent contact 4 and the wear contact 6 and by an annular channel 13 provided between the wear contact 6 and the inner wall of the insulating nozzle 9 and through the neck 10 of the insulating nozzle, with an exhaust chamber 14.
  • the annular channel 13 defines a chamber thermal compression.
  • the contact piece 1 is further surrounded by a sliding contact (not shown) and is arranged to slide in a tube metallic guide 15 mounted fixed in the envelope and along the axis 3.
  • the tube 15 carries on its outer wall of the bearings 16 and 17, the two bearings 16 being diametrically opposite with respect to the axis 3 at the two bearings 17 and each pair of bearings 16 respectively 17 serving to guide in translation the along the axis 3 a rod 18 respectively 19 secured to the part 2.
  • the permanent current contact 5 which surrounds the wear contact 7 in the form of a rod and which is integral with the latter has a tubular shape and is mounted to move along axis 3 in a tube guide 21 which is fixedly mounted in the casing which extends along the axis 3 coaxially with the tube 15.
  • the flow of current between the tube 21 and the contact of permanent current 5 is provided by a sliding contact not shown.
  • the permanent current contact 5 further comprises two protrusions 22 and 23 respectively, which extend radially outward from the tube 21 being diametrically opposite to each other with respect to axis 3, and to which the rods 18 and 19 are fixed respectively.
  • the rack and pinion gear here comprises first two racks 30 and 31 oriented parallel to axis 3 and fixed respectively on the rods 18 and 19 on the side of the contact piece 1 of such so that their teeth are oriented towards the tube 15.
  • This gear still has two second racks 32 and 33 oriented parallel to the racks 30,31 and fixed to the outer wall of the operating rod 8 inside the tube 15 so that their teeth are oriented in direction of the tube 15.
  • this gear comprises two toothed wheels 34 and 35 inserted diametrically opposite into the wall of the tube 15 with respect to to axis 3 and which can freely rotate each around a fixed axis with respect to the axis 3 and integral with the tube 15 so that the teeth of the wheels 34 and 35 respectively engage in the racks 30,32 and 31,33 respectively.
  • each toothed wheel 34 or 35 is housed in a slot arranged in the thickness of the tube 15 to engage on the one hand a rack such as 32 or 33 provided on the control rod 8 and disposed inside the tube and on the other hand a rack such as 30 or 31 provided on a rod fixed to the contact piece 2 and placed outside the tube 15.
  • this rack and pinion gear cogwheels is essentially arranged upstream from the neck 10 of the nozzle 9, that is to say out of the passage of the hot gases produced at the cutoff and represented by thick arrows in Figure 1.
  • FIG. 2 shows the circuit breaker in the closed position.
  • the contact of wear 7 is inserted into wear contact 6.
  • the contact part 1 is moved, by means of the rod 8, to the left along axis 3 and also the racks 32 and 33.
  • This movement to the left is converted by the gears 34 and 35 on the racks 30 and 31 in a movement of the rods 18 and 19 and therefore of the workpiece contacts 2 to the right made at the same speed but oriented in the direction opposite to the contact part 1.
  • the wear contacts 6 and 7 are then spaced from each other at a speed of doubled compared to the speed of movement of the control rod 8.
  • the hot gases are channeled through nozzle 9 to circulate between the contacts of permanent current 4 and 5 and wear 6 and 7.
  • Like the rack and pinion gear gear wheel is set back and upstream of the neck 10 of the nozzle 9, it is not not affected by these hot gases.

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  • Circuit Breakers (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

The rack and pinion movement section (30,34) is placed before the gas outlet section rather than after the section, so that the unit is not subject ot damage from hot exhaust gases.

Description

L'invention concerne un interrupteur à gaz comprimé avec un engrenage à crémaillères. Un tel interrupteur est déjà connu du brevet européen N°0313813. Dans cet interrupteur connu, les roues dentées de l'engrenage à crémaillères sont placées en aval du col de la buse canalisant les gaz chauds à la coupure. Il en résulte un endommagement dans le temps de cet engrenage et le but de l'invention est de remédier à cet inconvénient.The invention relates to a compressed gas switch with a gear. with racks. Such a switch is already known from the European patent N ° 0313813. In this known switch, the gears of the gear to racks are placed downstream of the neck of the nozzle channeling the hot gases to the cut. This results in damage over time to this gear and the object of the invention is to remedy this drawback.

A cet effet, l'invention a pour objet un interrupteur à gaz comprimé comprenant une première pièce de contacts présentant un contact d'usure creux dans lequel s'introduit, à la fermeture, un contact d'usure en forme de tige prévu sur une seconde pièce de contacts, une buse isolante coaxiale aux deux pièces de contacts et fixée sur la première pièce de contacts dont le col est, à la fermeture, traversé par le contact d'usure de la seconde pièce de contacts et relie une chambre de compression du gaz à une chambre d'échappement, le contact d'usure de la seconde pièce de contacts étant en outre mobile le long d'un axe et est déplacé en sens contraire du contact d'usure de la première pièce de contacts par un engrenage à crémaillères agencé pour transmettre en sens contraire un mouvement de la première pièce de contacts à la seconde pièce de contacts, caractérisé en ce que cet engrenage à crémaillères est disposé en amont du col de la buse.To this end, the invention relates to a compressed gas switch comprising a first contact part having a hollow wear contact into which a rod-shaped wear contact is introduced on closing on a second contact piece, an insulating nozzle coaxial with the two pieces of contacts and fixed on the first contact piece whose neck is, at the closure, crossed by the wear contact of the second contact part and connects a gas compression chamber to an exhaust chamber, the wear contact of the second contact part being also movable along of an axis and is moved in the opposite direction of the wear contact of the first contact piece by a rack and pinion gear arranged to transmit in opposite direction a movement from the first contact piece to the second contact part, characterized in that this rack and pinion gear is arranged upstream of the nozzle neck.

De la sorte cet engrenage à crémaillères est situé hors du passage des gaz chauds.In this way this rack and pinion gear is located outside the passage of the hot gases.

Un exemple de réalisation de l'invention est décrit ci-après plus en détail et illustré sur les dessins.An exemplary embodiment of the invention is described below in more detail. and illustrated in the drawings.

La figure 1 illustre très schématiquement un disjoncteur selon l'invention dans une position d'ouverture à la coupure.FIG. 1 very schematically illustrates a circuit breaker according to the invention in an open position at cut-off.

La figure 2 illustre le disjoncteur de la figure 1 en position de fermeture.Figure 2 illustrates the circuit breaker of Figure 1 in the closed position.

Sur les deux figures, on a représenté deux pièces de contacts respectivement 1,2 se trouvant dans une enveloppe non représentée, remplie d'un gaz isolant comme du SF6 sous une pression de quelques bars, qui peuvent être engagées l'une dans l'autre et dégagées l'une de l'autre, le long d'un axe longitudinal 3.In the two figures, two contact parts are shown. 1.2 respectively in an envelope, not shown, filled an insulating gas such as SF6 under a pressure of a few bars, which can be engaged in and out of each other, along a longitudinal axis 3.

Ces deux pièces de contact 1,2, présentent essentiellement une symétrie de rotation, c'est à dire qu'elles sont essentiellement tubulaires, et comportent chacune respectivement un contact de courant permanent 4 respectivement 5 et un contact d'usure 6 respectivement 7. Le contact d'usure 6 est creux tandis que le contact d'usure 7 a la forme d'une tige qui vient s'introduire, à la coupure comme visible sur la figure 2, dans le contact d'usure creux 6.These two contact parts 1, 2 have essentially a symmetry of rotation, that is to say they are essentially tubular, and comprise each respectively a permanent current contact 4 respectively 5 and a wear contact 6 respectively 7. The wear contact 6 is hollow while the wear contact 7 has the form of a rod which comes to be introduced, at the cut as shown in figure 2, in the hollow wear contact 6.

La pièce de contacts 1 peut coulisser le long de l'axe 3. Le déplacement de la pièce de contact 1 le long de l'axe 3 est obtenu par la translation axiale d'une tige de commande 8 qui sort à l'extérieur de l'enveloppe. Cette pièce de contacts 1 comporte une buse isolante 9 avec un col 10, disposée coaxialement entre le contact de courant permanent 4 et le contact d'usure 6 et reliée rigidement au contact de courant permanent 4 et au contact d'usure 6. La pièce de contacts 1 comporte aussi une chambre de compression annulaire 11 par piston, laquelle peut être mise en communication via des valves unidirectionnelles 12 formées dans une couronne reliant le contact permanent 4 et le contact d'usure 6 et par un canal annulaire 13 prévu entre le contact d'usure 6 et la paroi intérieure de la buse isolante 9 et par le col 10 de la buse isolante, avec une chambre d'échappement 14. La canal annulaire 13 définit une chambre de compression thermique. La pièce de contact 1 est en outre entourée par un contact glissant (non représenté) et est agencée pour coulisser dans un tube métallique 15 de guidage monté fixe dans l'enveloppe et s'entendant selon l'axe 3. Le tube 15 porte sur sa paroi extérieure des paliers 16 et 17, les deux paliers 16 étant diamétralement opposées par rapport à l'axe 3 aux deux paliers 17 et chaque paire de paliers 16 respectivement 17 servant à guider en translation le long de l'axe 3 une tige 18 respectivement 19 solidaire de la pièce 2.The contact piece 1 can slide along the axis 3. The displacement of the contact piece 1 along the axis 3 is obtained by the axial translation a control rod 8 which comes out of the envelope. This piece of contacts 1 includes an insulating nozzle 9 with a neck 10, arranged coaxially between permanent current contact 4 and wear contact 6 and connected rigidly to the permanent current contact 4 and to the wear contact 6. The part 1 also includes an annular compression chamber 11 by piston, which can be communicated via valves unidirectional 12 formed in a ring connecting the permanent contact 4 and the wear contact 6 and by an annular channel 13 provided between the wear contact 6 and the inner wall of the insulating nozzle 9 and through the neck 10 of the insulating nozzle, with an exhaust chamber 14. The annular channel 13 defines a chamber thermal compression. The contact piece 1 is further surrounded by a sliding contact (not shown) and is arranged to slide in a tube metallic guide 15 mounted fixed in the envelope and along the axis 3. The tube 15 carries on its outer wall of the bearings 16 and 17, the two bearings 16 being diametrically opposite with respect to the axis 3 at the two bearings 17 and each pair of bearings 16 respectively 17 serving to guide in translation the along the axis 3 a rod 18 respectively 19 secured to the part 2.

Dans la pièce de contacts 2, le contact de courant permanent 5 qui entoure le contact d'usure 7 en forme de tige et qui est solidaire de celui-ci présente une forme tubulaire et est monté mobile le long de l'axe 3 dans un tube de guidage 21 qui est monté fixe dans l'enveloppe qui s'étend le long de l'axe 3 coaxialement au tube 15. Le passage du courant entre le tube 21 et le contact de courant permanent 5 est assuré par un contact glissant non représenté. Le contact de courant permanent 5 comporte en outre deux protubérances 22 et 23 respectivement, qui s'étendent radialement vers l'extérieur du tube 21 en étant opposées diamétralement l'une par rapport à l'autre par rapport à l'axe 3, et auxquelles sont fixées respectivement les tiges 18 et 19.In the contact part 2, the permanent current contact 5 which surrounds the wear contact 7 in the form of a rod and which is integral with the latter has a tubular shape and is mounted to move along axis 3 in a tube guide 21 which is fixedly mounted in the casing which extends along the axis 3 coaxially with the tube 15. The flow of current between the tube 21 and the contact of permanent current 5 is provided by a sliding contact not shown. The permanent current contact 5 further comprises two protrusions 22 and 23 respectively, which extend radially outward from the tube 21 being diametrically opposite to each other with respect to axis 3, and to which the rods 18 and 19 are fixed respectively.

Dans l'exemple de réalisation de l'interrupteur à gaz selon l'invention, on atteint une vitesse accrue de séparation des contacts, cette vitesse étant sensiblement le double de la vitesse de déplacement de la pièce de contacts 1, en utilisant un engrenage à crémaillères. L'engrenage à crémaillères comporte ici deux premières crémaillères 30 et 31 orientées parallèlement à l'axe 3 et fixées respectivement sur les tiges 18 et 19 du côté de la pièce de contacts 1 de telle façon que leurs dents soient orientées en direction du tube 15. Cet engrenage comporte encore deux secondes crémaillères 32 et 33 orientées parallèlement aux crémaillères 30,31 et fixées sur la paroi extérieure de la tige de manoeuvre 8 à l'intérieur du tube 15 de telle façon que leurs dents soient orientées en direction du tube 15. Enfin, cet engrenage comporte deux roues dentées 34 et 35 insérées de façon diamétralement opposée dans la paroi du tube 15 par rapport à l'axe 3 et pouvant tourner librement chacune autour d'un axe fixe par rapport à l'axe 3 et solidaire du tube 15 de telle façon que les dents des roues 34 et 35 respectivement s'engagent dans les crémaillères 30,32 et 31,33 respectivement. Plus particulièrement, chaque roue dentée 34 ou 35 est logé dans une fente aménagée dans l'épaisseur du tube 15 pour engager d'une part une crémaillère telle que 32 ou 33 prévue sur la tige de commande 8 et disposée à l'intérieur du tube et d'autre part une crémaillère telle que 30 ou 31 prévue sur une tige fixée à la pièce de contacts 2 et disposée à l'extérieur du tube 15.In the exemplary embodiment of the gas switch according to the invention, it is reaches an increased speed of contact separation, this speed being substantially double the speed of movement of the contact piece 1, using a rack and pinion gear. The rack and pinion gear here comprises first two racks 30 and 31 oriented parallel to axis 3 and fixed respectively on the rods 18 and 19 on the side of the contact piece 1 of such so that their teeth are oriented towards the tube 15. This gear still has two second racks 32 and 33 oriented parallel to the racks 30,31 and fixed to the outer wall of the operating rod 8 inside the tube 15 so that their teeth are oriented in direction of the tube 15. Finally, this gear comprises two toothed wheels 34 and 35 inserted diametrically opposite into the wall of the tube 15 with respect to to axis 3 and which can freely rotate each around a fixed axis with respect to the axis 3 and integral with the tube 15 so that the teeth of the wheels 34 and 35 respectively engage in the racks 30,32 and 31,33 respectively. More particularly, each toothed wheel 34 or 35 is housed in a slot arranged in the thickness of the tube 15 to engage on the one hand a rack such as 32 or 33 provided on the control rod 8 and disposed inside the tube and on the other hand a rack such as 30 or 31 provided on a rod fixed to the contact piece 2 and placed outside the tube 15.

Comme on peut le voir sur la figure 1, cet engrenage à crémaillères et à roues dentées est essentiellement disposé en amont du col 10 de la buse 9, c'est à dire hors du passage des gaz chauds produits à la coupure et représentés par des flèche épaisses sur la figure 1.As can be seen in Figure 1, this rack and pinion gear cogwheels is essentially arranged upstream from the neck 10 of the nozzle 9, that is to say out of the passage of the hot gases produced at the cutoff and represented by thick arrows in Figure 1.

La figure 2 montre le disjoncteur en position de fermeture. Le contact d'usure 7 est inséré dans le contact d'usure 6. Lors de la coupure comme illustré sur la figure 1, la pièce de contacts 1 est déplacée, par l'intermédiaire de la tige 8, vers la gauche le long de l'axe 3 et aussi les crémaillères 32 et 33. Ce mouvement vers la gauche est converti par les roues dentées 34 et 35 sur les crémaillères 30 et 31 en un mouvement des tiges 18 et 19 et donc de la pièce de contacts 2 vers la droite effectué à la même vitesse mais orienté en sens contraire par rapport à la pièce de contacts 1. Lors de la séparation des contacts, les contacts d'usure 6 et 7 sont alors écartés l'un de l'autre à une vitesse de doublée par rapport à la vitesse de déplacement de la tige de commande 8. Les gaz chauds sont canalisés par la buse 9 pour circuler entre les contacts de courant permanent 4 et 5 et d'usure 6 et 7. Comme l'engrenage à crémaillères et à roues dentées se trouve en retrait et en amont du col 10 de la buse 9, il n'est pas affecté par ces gaz chauds.Figure 2 shows the circuit breaker in the closed position. The contact of wear 7 is inserted into wear contact 6. When cutting as illustrated in FIG. 1, the contact part 1 is moved, by means of the rod 8, to the left along axis 3 and also the racks 32 and 33. This movement to the left is converted by the gears 34 and 35 on the racks 30 and 31 in a movement of the rods 18 and 19 and therefore of the workpiece contacts 2 to the right made at the same speed but oriented in the direction opposite to the contact part 1. When the contacts are separated, the wear contacts 6 and 7 are then spaced from each other at a speed of doubled compared to the speed of movement of the control rod 8. The hot gases are channeled through nozzle 9 to circulate between the contacts of permanent current 4 and 5 and wear 6 and 7. Like the rack and pinion gear gear wheel is set back and upstream of the neck 10 of the nozzle 9, it is not not affected by these hot gases.

Claims (7)

Un interrupteur à gaz comprimé comprenant une première pièce de contacts (1) présentant un contact d'usure creux (6) dans lequel s'introduit, à la fermeture, un contact d'usure en forme de tige (7) prévu sur une seconde pièce de contacts (2), une buse isolante (9) coaxiale aux deux pièces de contacts et fixée sur la première pièce de contacts (1) dont le col (10) est, à la fermeture, traversé par le contact d'usure (7) de la seconde pièce de contacts et relie une chambre de compression du gaz (11,13) à une chambre d'échappement (14), le contact d'usure (7) de la seconde pièce de contacts étant en outre mobile le long d'un axe (3) et est déplacé en sens contraire du contact d'usure (6) de la première pièce de contacts par un engrenage à crémaillères (30,31,32,33,34,35) agencé pour transmettre en sens contraire un mouvement de la première pièce de contacts à la seconde pièce de contacts, caractérisé en ce que cet engrenage à crémaillères est disposé en amont du col de la buse.A compressed gas switch comprising a first contact part (1) having a hollow wear contact (6) into which a rod-shaped wear contact (7) provided on a second is introduced on closing contact part (2), an insulating nozzle (9) coaxial with the two contact parts and fixed on the first contact part (1) whose neck (10) is, when closed, crossed by the wear contact ( 7) of the second contact part and connects a gas compression chamber (11, 13) to an exhaust chamber (14), the wear contact (7) of the second contact part being also movable with along an axis (3) and is moved in the opposite direction from the wear contact (6) of the first contact part by a rack and pinion gear (30,31,32,33,34,35) arranged to transmit in opposite direction a movement from the first contact piece to the second contact piece, characterized in that this rack and pinion gear is arranged e n upstream of the nozzle neck. L'interrupteur selon la revendication 1, dans lequel l'engrenage à crémaillères comprend au moins une roue dentée (34,35) tournante autour d'un axe fixe le long de l'axe (3) et au moins deux crémaillères disposées parallèlement à l'axe (3) dont l'une (32,33) est solidaire de la première pièce de contacts (1) et l'autre (30,31) est solidaire de la seconde pièce de contact (2).The switch according to claim 1, wherein the gear racks comprises at least one toothed wheel (34,35) rotating around a fixed axis along the axis (3) and at least two racks arranged parallel to the axis (3), one of which (32,33) is integral with the first part of contacts (1) and the other (30,31) is integral with the second contact piece (2). L'interrupteur selon la revendication 2, dans lequel la crémaillère solidaire de la première pièce de contacts (1) est fixée sur une tige de manoeuvre (8) coulissant le long de l'axe (3) et solidaire de la première pièce de contacts (1).The switch according to claim 2, wherein the rack integral with the first contact part (1) is fixed to a rod maneuver (8) sliding along the axis (3) and integral with the first part of contacts (1). L'interrupteur selon la revendication 2, dans lequel la crémaillère solidaire de la seconde pièce de contacts (2) est fixée sur une tige (18,19) coulissant le long de l'axe (3) et solidaire de la seconde pièce de contacts (2).The switch according to claim 2, wherein the rack integral with the second contact piece (2) is fixed to a rod (18,19) sliding along the axis (3) and integral with the second contact part (2). L'interrupteur selon la revendication 2, dans lequel la roue dentée (34,35) est montée à rotation sur un axe solidaire d'un tube (15) dans lequel coulisse la première pièce de contacts (1). The switch according to claim 2, wherein the gear wheel (34,35) is rotatably mounted on an axis integral with a tube (15) in which slides the first contact piece (1). L'interrupteur selon les revendications 4 et 5, dans lequel la tige (18,19) solidaire de la seconde pièce de contacts est montée coulissante dans des paliers (16,17) solidaires du tube (15) dans lequel coulisse la première pièce de contacts (1).The switch according to claims 4 and 5, wherein the rod (18,19) integral with the second contact part is slidably mounted in bearings (16,17) integral with the tube (15) in which the first part slides contacts (1). L'interrupteur selon les revendications 3 et 6, dans lequel la tige (8) solidaire de la première pièce de contacts (1) est disposée à l'intérieur du tube (15) dans lequel coulisse la première pièce de contacts (1) et la tige (18,19) solidaire de la seconde pièce de contacts (2) est disposée à l'extérieur dudit tube (15).The switch according to claims 3 and 6, wherein the rod (8) integral with the first contact piece (1) is disposed inside the tube (15) in which slides the first contact piece (1) and the rod (18,19) integral with the second contact piece (2) is disposed outside of said tube (15).
EP98402423A 1997-10-02 1998-10-01 Gas blast switch with rack and pinion gear Withdrawn EP0907195A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9712263A FR2769403B1 (en) 1997-10-02 1997-10-02 COMPRESSED GAS SWITCH WITH RACK GEAR
FR9712263 1997-10-02

Publications (1)

Publication Number Publication Date
EP0907195A1 true EP0907195A1 (en) 1999-04-07

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Application Number Title Priority Date Filing Date
EP98402423A Withdrawn EP0907195A1 (en) 1997-10-02 1998-10-01 Gas blast switch with rack and pinion gear

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US (1) US6015960A (en)
EP (1) EP0907195A1 (en)
KR (1) KR19990036841A (en)
CA (1) CA2245994A1 (en)
FR (1) FR2769403B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1879207A1 (en) * 2006-07-12 2008-01-16 ABB Technology AG Rack and pinion gear for a switch
EP2402969A1 (en) 2010-07-01 2012-01-04 Alstom Grid SAS Arc chamber for a medium- or high-voltage circuit breaker with reduced operating energy
CN101548351B (en) * 2006-12-06 2013-03-06 Abb技术有限公司 Gear for electrical circuit breakers
WO2015075096A1 (en) * 2013-11-22 2015-05-28 Eaton Industries (Netherlands) B.V. Switching device
WO2018059882A1 (en) * 2016-09-27 2018-04-05 Siemens Aktiengesellschaft Contact piece for a high-voltage circuit breaker and method for producing same
CN107887226A (en) * 2017-12-27 2018-04-06 徐为杰 A kind of isolation simple to operate and grounding type open circuit structure
CN109036950A (en) * 2018-07-10 2018-12-18 东莞市联洲知识产权运营管理有限公司 A kind of modified rigid power transmission device

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DE59802323D1 (en) * 1997-01-17 2002-01-17 Siemens Ag HIGH VOLTAGE CIRCUIT BREAKER WITH AN AXIAL SLIDING FIELD ELECTRODE
FR2809531B1 (en) * 2000-05-25 2002-07-05 Alstom INSULATING BLOWER NOZZLE FOR CIRCUIT BREAKER
EP1814132B1 (en) * 2006-01-31 2008-12-17 ABB Technology AG Switching chamber for a gas-insulated high voltage circuit-breaker
FR2922679A1 (en) * 2008-04-15 2009-04-24 Areva T & D Sa Interrupter chamber for high-voltage circuit-breaker, has contact and nozzle whose shapes, sizes, and arrangement are chosen so as to move gas turbulences blown towards downstream end while reducing quantity of gas released by nozzle
DE102013200918A1 (en) 2013-01-22 2014-07-24 Siemens Aktiengesellschaft Switchgear arrangement
US9153948B2 (en) 2013-02-11 2015-10-06 General Electric Company System and method for actuation of power panel
FR3030103A1 (en) * 2014-12-11 2016-06-17 Alstom Technology Ltd CIRCUIT BREAKER WITH GUIDING MEANS FOR LIMITING INTERNAL FRICTION
DE102015205388A1 (en) * 2015-03-25 2016-09-29 Siemens Aktiengesellschaft Insulating nozzle and electrical switching device with the insulating nozzle

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DE2946929A1 (en) * 1979-11-21 1981-05-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Pneumatic gas blow-out switch - has scissor linkage between moving contact and piston-cylinder unit
EP0313813A1 (en) * 1987-10-27 1989-05-03 BBC Brown Boveri AG Gas blast switch
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1879207A1 (en) * 2006-07-12 2008-01-16 ABB Technology AG Rack and pinion gear for a switch
US7994442B2 (en) 2006-07-12 2011-08-09 Abb Technology Ag Rack gear for electrical circuit breaker
CN101548351B (en) * 2006-12-06 2013-03-06 Abb技术有限公司 Gear for electrical circuit breakers
EP2402969A1 (en) 2010-07-01 2012-01-04 Alstom Grid SAS Arc chamber for a medium- or high-voltage circuit breaker with reduced operating energy
WO2015075096A1 (en) * 2013-11-22 2015-05-28 Eaton Industries (Netherlands) B.V. Switching device
WO2018059882A1 (en) * 2016-09-27 2018-04-05 Siemens Aktiengesellschaft Contact piece for a high-voltage circuit breaker and method for producing same
CN109791852A (en) * 2016-09-27 2019-05-21 西门子股份公司 The method of contact and manufacture contact for high-voltage circuit breaker
US10991527B2 (en) 2016-09-27 2021-04-27 Siemens Aktiengesellschaft Contact piece for a high-voltage circuit breaker and method for producing same
DE102016218518C5 (en) 2016-09-27 2023-05-11 Siemens Energy Global GmbH & Co. KG Contact piece for a high-voltage circuit breaker and method for its manufacture
CN107887226A (en) * 2017-12-27 2018-04-06 徐为杰 A kind of isolation simple to operate and grounding type open circuit structure
CN109036950A (en) * 2018-07-10 2018-12-18 东莞市联洲知识产权运营管理有限公司 A kind of modified rigid power transmission device

Also Published As

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US6015960A (en) 2000-01-18
FR2769403A1 (en) 1999-04-09
CA2245994A1 (en) 1999-04-02
KR19990036841A (en) 1999-05-25
FR2769403B1 (en) 1999-11-12

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