EP0110005B1 - Agencement de contact pour sectionneur pantographe - Google Patents

Agencement de contact pour sectionneur pantographe Download PDF

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Publication number
EP0110005B1
EP0110005B1 EP83105913A EP83105913A EP0110005B1 EP 0110005 B1 EP0110005 B1 EP 0110005B1 EP 83105913 A EP83105913 A EP 83105913A EP 83105913 A EP83105913 A EP 83105913A EP 0110005 B1 EP0110005 B1 EP 0110005B1
Authority
EP
European Patent Office
Prior art keywords
contact
switching system
bars
counter
contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83105913A
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German (de)
English (en)
Other versions
EP0110005A1 (fr
Inventor
Manfred Jahn
Gerhard Körner
Burkhard Dipl.-Ing. Krampe
Horst Plettner
Rainer Scholz
Karlheinz Wagner
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.)
BBC Brown Boveri AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
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.)
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Publication date
Application filed by Brown Boveri und Cie AG Germany filed Critical Brown Boveri und Cie AG Germany
Priority to AT83105913T priority Critical patent/ATE18102T1/de
Publication of EP0110005A1 publication Critical patent/EP0110005A1/fr
Application granted granted Critical
Publication of EP0110005B1 publication Critical patent/EP0110005B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/34—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact adapted to engage an overhead transmission line, e.g. for branching
    • 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

Definitions

  • the invention relates to a switchgear according to the preamble of claim 1.
  • Scissor disconnectors installed in outdoor switchgear interact with mating contacts attached to an overvoltage or anchoring arranged above the disconnectors.
  • the two scissor contacts of a scissor-type circuit breaker take the relevant, cooperating, roller-shaped counter-contact piece in a beak-like manner, whereby problems can arise to the extent that arcs can occur between the contacts due to contact bouncing phenomena.
  • switch-off arcs occur between the scissor contact pieces and the mating contact, which, like the arcs during contact bouncing, lead to a burn-up either on the mating contact piece or on one of the scissor contacts and thus damage the two components.
  • auxiliary or tear-off contacts provided that are guided so that they remain briefly closed after separation of the scissor contact pieces from the counter contact, so that the switching arc is drawn between the auxiliary or break contacts.
  • the process is reversed, which prevents bouncing arcs.
  • the common components that transmit the nominal current that is, the shear contacts and the counter contacts, are protected because they themselves do not have to pick up and guide any arc base points.
  • the commutation contacts that is to say those contact pieces or contact elements which are used to commutate the breaking current to the breakaway contacts, are generally attached to the scissor contact pieces (cf. DE-A-2839914; DE-A-3133622).
  • Tear-off contacts on the mating contact in the form of resilient rods have become known from DE-A-2809499, DE-A-2839914 or DE-A-2847377. With these tear-off contacts, the counter contacts are protected; however, other problems arise due to creeping contact.
  • the object of the invention is to simplify the contact arrangement and in particular to arrange the commutation contacts with the tear-off contacts more cheaply.
  • the invention provides a commutation contact arrangement in which the commutation contacts are arranged on the mating contact and draw the switch-off arc practically in the area of the mating contact, so that erosion processes on the scissor contact pieces and also on the mating contact can be avoided.
  • the arrangement of the commutation contacts practically into the counter contact which can be tubular, for example, also creates the advantage that, according to the characterizing part of claim 5, plastic coatings can be provided in the area of the contact points, which emit gases under the action of the arc, which lead to contribute to better arc extinguishing (hard gas blowing).
  • the switch-off process then takes place in such a way that the scissor bars or scissor contacts move away from the mating contacts, the commutation contacts, i.e. so the strips, synchronized and run simultaneously.
  • the tear-off contacts separate, so that an arc is ignited there, in the present case within the counter-contact, which burns with simultaneous hard gas blowing until it is extinguished.
  • the shear contacts can then disconnect from the contact strips of the commutation contacts without current. When switching on, the process takes place in the opposite direction.
  • a scissor disconnector or the counter contact are assigned two contact strips, one on the left and one on the right of the counter contact. One contact strip thus comes into contact with a scissor contact of the disconnector. Auxiliary contact points are then two in number, one for each con Clock bar at one end of the counter contact. The contact points are each housed in a housing that is expediently rotatable relative to the counter contact.
  • each fixing strip is slightly smaller in width than the outer diameter of the counter contact, so that when the counter contact is aligned precisely with the scissor disconnector, its contact bars come into contact with the counter contact, but not with the fixing strips.
  • a counter contact 10 is shown, which is braced or suspended at its two ends by means of holding elements 12 and 14 via hanging rods 16 and 18 on an overvoltage or bracing of a high-voltage outdoor switchgear, not shown.
  • the mating contact 10 has contact strips 20 and 22 serving as commutation contacts on both sides, which are provided in a U-shape with leg ends 24 and 26 or 28 and 30. These contact strips 20 and 22 are guided in slots 32 and 34, respectively, which slots 32 and 34 open into a rectangular recess 36 in the interior of the mating contact 10.
  • the inner surfaces of the slots 32 and 34 are each coated with an insulating layer 38 and 40 or 42 and 44, so that the strips are electrically insulated from the mating contact 10.
  • H-shaped contact pieces 46 and 48 which have openings 50 and 52, into which the leg ends 24 and 28 or 26 and 30 engage.
  • the ends of the openings 50 and 52 are chamfered outwards and coated there with a plastic layer 54 and 56, which emits gas under the action of an arc.
  • the opposite opening 50 has the same plastic layers 54 and 56.
  • the free ends of the leg ends 24 and 26 or 28 and 30 are also provided with a plastic layer 58 and 60, which can also release hard gas.
  • the outer surfaces of the mating contact 10 in the area of the contact strips 20 and 22 are coated with a burn-off-resistant material 62.
  • the two contact strips are under the action of compression springs 64 and 66, which press both strips outwards.
  • the mating contact interacts with scissor contact pieces 68 and 70 of a scissor disconnector when switched on.
  • FIG. 3 shows a sectional view along the section line A-B in FIG. 1
  • FIG. 4 shows a sectional view along the section line C-D in the area of the compression spring 64.
  • the contact strips 20, 22 are T-shaped in cross-section, the transverse web 21 being located in the interior of the recess 36 and being pressed against the inner surfaces of the recesses by the compression springs 64 and 66 after the scissor contact pieces have been pivoted away.
  • the two contact strips 20 and 22 are under the pressure of the scissor contact pieces 70 and 68 within the circumference of the mating contact, so that the current transfer from the scissor contact pieces 68 and 70 runs through the erosion-resistant layers of material 62 into the mating contact. If the scissor contacts are now opened, ie they move away from the mating contact in the direction of arrow F, then generally only one of the two scissor contacts will initially move away from the mating contact because of asymmetries which cannot be avoided. 3 and 4, it is the scissor contact piece 70 located on the right. The contact strip 20 travels behind the scissor contact piece 70, with its leg ends 22 or, respectively, from the position shown in the left in FIG.
  • FIGS. 5 and 6 show a further embodiment of the invention.
  • a mating contact 80 which corresponds to the mating contact 10 of FIGS. 1 to 4
  • two strips 84 and 86 are arranged, which are connected to one another in an articulated manner by means of two lever links 88 'and 90.
  • the lever links 88 and 90 are also articulatedly connected to the mating contact 80 at the points 92 and 94, respectively.
  • the lever links 88 and 90 are under the action of leg springs 96 and 98, so that the two strips 84 and 86 are pressed apart in the direction of arrow G under the pressure of the two leg springs 96 and 98.
  • the two strips 84 and 86 are pressed into the inner circumference or into the contour of the mating contact 80 by the scissor contact pieces 68 and 70.
  • the counter contact 110 (FIG. 9) is made up of two counter contact halves 112 and 114, on the opposite, horizontally lying lateral surfaces of which the actual contact strips 116 and 118 are inserted. These contact strips essentially serve to carry the nominal current. They generally consist of tear-resistant material and are fastened to the two mating contact halves 112 and 114 by means of screws 120 and 122.
  • auxiliary contact strips which correspond to the contact strips 20 and 22, have the reference numbers 124 and 126 and are fastened with their free ends to tabs 128 and 130, which tabs run perpendicular to the auxiliary contact strips 124 and 126.
  • the tabs themselves are fixed at points 132 and 134 so that the tab 128 with the auxiliary contact strip 124 can rotate in the arrow direction P1 and the auxiliary contact strip 126 with the tab 130 in the ⁇ arrow direction P2.
  • Coil springs 136 act on the tabs 128 and 130 (only the spring for the tab 128 is shown in FIG. 8), which tend to pull the tabs and the auxiliary contact strips 126 and 124 outwards.
  • a rod 138 is fastened at one end, which is fastened to a bend 141 of a contact lug 142 by means of a screw connection 140.
  • the contact tab is fastened to a fixedly attached carrier 144, so that the contact tab 142 is firmly clamped at one end.
  • the other, free end of the contact lug 142 is provided with a movable contact piece 146 which interacts with a fixed contact piece 150 fastened to a connecting lug 148.
  • the carrier 144 has an extension 152 which is semicircular and has a leaf spring 154 articulated on its free end. The other end of the spring is attached to the Salle 156 on the contact lug 142.
  • the interaction of the carrier 144, the leaf spring 154 and the contact lug 142 is now as follows:
  • the position shown in FIG. 8 corresponds to a first stable position in which the contact point 146/150 is closed. If the tab and the auxiliary contact strip 124 are moved in the direction of arrow P1, then the rod 138 acts on the contact spring and also presses the contact tab in the direction of arrow P1. Together with the leaf spring 154, a dead center position is formed, which is exceeded by the system contact vane and leaf spring 154 during the switch-off process, so that a second stable position, namely a switch-off position, is then achieved.
  • the assignment of the contact lug, leaf spring 154 and point of application of the rod 138 and contact point 146/150 is such that the contact point remains closed until the dead center or dead center position is reached and is only opened suddenly after the dead center position has been exceeded. If an arc is drawn at the contact point, it runs into an arc-quenching plate packet 160 and is extinguished there.
  • the attachment of the leaf spring 154 to the extension 152 is articulated, which is brought about by a simple cutting edge support.
  • the spring may also be articulated to contact tab 142, e.g. again via a cutting edge support.
  • the leaf spring can of course also be integrally formed on the flag 142 at the point 156.
  • the arrangement with the contact point in cooperation with the auxiliary contact strip 124 has been described with reference to FIGS. 8 and 9.
  • the arrangement is located at one end of the mating contact in a housing 163.
  • the fact that such an arrangement is assigned to each of the two strips is due to the fact that an asymmetrical opening of the scissor contact pieces 68, 70 and then an asymmetrical detachment of one of the scissor contact pieces 68 or 70 from the mating contact 110 is to be expected.
  • FIG. 10 A further embodiment of the invention is shown in the drawing according to FIGS. 10 to 12.
  • the mating contact corresponds to the mating contact of FIG. 9 therefore bears the reference numbers 112 to 118.
  • Shown in FIG. 10 is an arrangement which corresponds to that which is located in the housing 163 of FIG. 8.
  • the corresponding housing according to FIG. 10 has the reference number 170 and is composed of a housing support part 171 and a cover 172.
  • the housing support part 171 holds, in a manner not shown in detail, a support plate 173, on which an arc-quenching plate packet 174 is fastened.
  • the housing 170 has an opening 175 in its central region, in which a sliding seal 176 is arranged in the form of a sliding bush.
  • the housing support part which is made of cast aluminum, has extensions 177 and 178 on its outer surface parallel to the counter contact and at the same distance from the center line or center axis of the opening, to which fixing strips 179 and 180 are fastened by means of screw connection 181.
  • the fixing strip 179 lies outside of the extension 177 and at a defined distance from the counter contact, whereas the fixing strip 180 is arranged between the extension 178 and the outer contour of the counter contact.
  • a spacer bar 182 is arranged between the upper fixing bar 179 and the mating contact 112 to 118. This can be seen more clearly from FIG. 12.
  • the counter-contact 112 to 118 are assigned two contact strips 183 and 184, which have a steel rod 185 and a copper tube 186 surrounding the steel rod 185.
  • the contact strips 183 and 184 are fastened to levers 188 and 189 at one end by means of screw connections 187; the other end of the levers 188 and 189 is attached to a pin 190 and 191 by means of a clamping part 192 and 193, respectively.
  • the distance of the fixing bar 179 from the upper surface line of the mating contact 112 to 118 is selected such that the contact bars 183 and 184 can lie between the fixing bar 179 and the mating contact, so that when the scissor contact piece 68 comes to rest against the mating contact, the contact bars 183 or 184 cannot hinder a contact of the scissor contact pieces 68 on the mating contact. Accordingly, the width b of the fixing strips 179 and 180 is smaller than the diameter of the counter contact.
  • the lever 189 and the pin 191 can be seen partially cut.
  • This pin 191 penetrates a bore 194 in the housing support part 171, which bore is delimited by an inwardly facing collar 195.
  • the bore 194 receives seals 196 and 197 at its two ends, which serve at the same time for guiding, storing and sealing the pin 191 in the housing support part 171.
  • the inner end of the pin 191 is firmly connected to a fork lever 198 and also to a clamping part 199.
  • the thread lift 198 extends approximately to the counter contact.
  • a connecting rod 201 is articulated via an axle 200, the other end of which is articulated to the contact tab 142 via an axle 202.
  • the fork lever 198 has a fork-like extension 203, in which one end of the connecting rod 201 engages and is guided therein. A rotation of the fork lever 198 causes a rotation of the fork lever 198 via the pin 191 and thus an actuation of the contact lug 142 via the connecting rod 201.
  • the same reference number has been chosen with respect to the contact lug according to FIG. 8 in order to indicate the similarity.
  • FIG. 11 Inside the housing 170 one can see the arc-quenching plate packet which is delimited at the upper end by an arc-guiding rail 204 which carries the fixed contact 205 which corresponds to the fixed contact 150.
  • the movable contact piece 146 is attached to the contact lug 142, which is fastened in an insulated manner to a stop fixed to the housing by means of a screw connection 207.
  • a fastening element 210 likewise insulated, is fastened to a further stop 208 fixed to the housing by means of two screw connections 209, on which a leg end 211 of a U-shaped bow spring 212 is supported.
  • the other leg end 213 of the bow spring 212 is mounted on the contact lug 142, so that a snap mechanism is formed by the suitable support of the two leg ends of the bow spring 212, the stable position of which is the switch-on position and the other stable position of which is the switch-off position.
  • the position shown in FIG. 11 corresponds approximately to the so-called dead center position.
  • the arc guide rail 204 with the fixed contact piece 205 is firmly connected to a carrier lug 214, which is also attached to a stop 215 fixed to the housing a screw connection 216 is held isolated from the housing support part 171.
  • the arc-extinguishing sheet stack is delimited on one side by the arc-guiding rail 204 and at the other end by an arc-guiding rail 217.
  • This guide rail 217 sits in the direction of the movable contact piece or ⁇ .
  • the fixed contact piece or its feed and the contact tab form a U-shaped blow loop, which is oriented perpendicular to the extent of the quenching plates 219 of the arc quenching plate package 174. This results in an optimal entry of the arc drawn between the two contact pieces into the arc quenching plate packet 174 due to the magnetic field generated by the U-shaped blow loop.
  • the fixed contact piece 205 is connected to the mating contact via a wire 220, whereas the movable contact piece or the contact lug is electrically-galvanically connected to a wire 221 on the wire lift 198 and with another wire 222 on the horn 218.
  • the mode of operation of the arrangement of FIGS. 10 to 12 is similar to that of FIGS. 8 and 9.
  • the scissor contacts When the scissor contacts are opened, one or the other contact pad 184 will move outwards under the pressure of the spring 135 with the scissor contact piece 68 or 70 .
  • the scissor contact piece 170 has separated from the mating contact 112 to 118, as can be seen from FIG. 12; however, the contact strip 184 is still connected to the scissor contact piece 70.
  • the fork lever 198 also pivots and, via the connecting rod 201, the contact lug also pivots, although this is still held in the switched-on position until the bow spring 212 exceeds its dead center position, e.
  • the contact tab or the movable contact piece 146 snaps into the switch-off position, as a result of which an arc is drawn between the fixed contact 205 and the movable contact piece 146 and is extinguished in the arc extinguishing chamber 219. If the scissor contact piece 70 moves away from the strip 184, no arc is drawn at least between these two. With further opening movement, the scissor contact piece 68 also separates from the counter contact; The snap contact spring located at the other end of the mating contact is opened via the lever 188 and the pin 190.
  • the application of the configuration according to the invention can be seen in particular where a branch, i.e. must be switched from one busbar to another busbar in an outdoor switchgear. Due to the technical circumstances - although all current-carrying parts remain at high voltage potential - a voltage difference of maximum 300 V with a current of 2000 A can occur, which must be switched by the contacts. If the designs according to the invention were not used, then, as has been found from investigations, strong burn marks would form on the countercontact or on the scissor contacts, as a result of which their service life is drastically reduced.
  • the design according to the invention in particular that according to FIGS. 8 to 12, completely avoids arcing phenomena in the region of the parts which carry the rated current when switched on, and the actual arc quenching elements are shifted in a separate arc quenching chamber.
  • the two fixing strips 179 and 180 have the task of fixing the arrangement according to the invention, which consists of the strips 183 and 184 and the two housings 170, relative to one another, so that twisting processes and displacement processes of the mating contact do not lead to the scissor contacts being canceled out by the contact strips can.
  • the spacer or the spacer bar 182 then has the advantage that it fixes the position of the upper fixing bar 179 with respect to the mating contact 112 to 118 even if the mating contact moves upwards due to a short-circuiting process and the mating contact does not move beneath one catch hooks shown on the scissor contacts strikes.
  • the fixing strip 179 with the spacer or the spacing strip 182 thus serves as a kind of buffer.
  • the fork levers 198 are made of metal and the pin 191 is mounted insulated from the housing support part 171.
  • the connecting rod 201 is also made of insulating material. In the same way, the fixing strips and the spacer or the spacer strip are also made of insulating material.
  • FIG. 11 it is shown in a broken line that the counter-contact 112 to 118 has on its upper side a recess 230 shown in broken lines, into which a ball 231 is pressed by means of a spring 232, the spring 232 with its free end supported on a fixed stop 233.
  • This arrangement serves as a latching for the mating contact 112 to 118 or as a latching of the housing 170 with respect to the mating contact, whereby the starting position is ensured when the switching device is switched off.
  • Such a catch can be formed in the usual way; it is only schematically shown in FIG Recess 230, the ball 231 and the spring 232 shown.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Keying Circuit Devices (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Farming Of Fish And Shellfish (AREA)

Claims (26)

1. Poste de distribution avec un sectionneur à pantographe et avec, coopérant avec celui-ci, un contre-contact (10; 80; 110; 112 à 118) suspendu à un hauban dudit poste de distribution, contre-contact qui se trouve à l'état fermé, entre les contacts de pince dudit sectionneur, et avec des contacts de commutation (20,22; 84,86; 124, 126) servant à commuter le courant, lors du processus de coupure, sur des contacts de rupture qui servent au guidage de l'arc de coupure, caractérisé par le fait que les contacts de commutation (20, 22; 84, 86; 124, 126) sont, avec les contacts de rupture (24, 26, 28, 30, 46; 100, 104; 120, 106; 146,150) disposés sur le contre-contact (10; 80; 110; 112 à 118), de façon que l'arc de rupture (L) soit étiré dans la zone du contre-contact (10; 80; 110;112 à 118).
2. Poste de distribution selon la revendication 1, caractérisé par le fait que, dans le contre-contact (10; 80; 110; 112 à 118), est disposé un évidement en forme de fente (32, 34, 36; 82), dans lequel des baguettes (20, 22; 84, 86; 124, 126) écartées entre elles par des ressorts sont disposées comme contacts de commutation, baguettes qui, à l'état coupé, dépassent de la périphérie extérieure du contre-contact (10, 80; 110; 112 à 118), tandis qu'à l'état fermé elles sont enfoncées dans l'évidement en forme de fente par les contacts de pince (68, 70) du sectionneur à pantographe, de sorte que les contacts de pince se trouvent, à l'état fermé, directement contre le contre-contact.
3. Poste de distribution selon la revendication 2, caractérisé par le fait que les baguettes (20, 22; 84, 86; 124, 126) sont électriquement isolées du contre-contact.
4. Poste de distribution selon l'une des revendications 1 à 3, caractérisé par le fait que les baguettes (20, 22) sont en forme de U et sont montées dans lecontre-contact (10) de façon que les extrémités libres des branches (24 à 30) du U soient face à face et que, dans la zone des extrémités de branches, sont prévues, à l'intérieur du contre-contact, des pièces de contact (46, 48) avec lesquelles les extrémités de branches coopèrent, en formant des contacts de rupture, les baguettes étant disposées de façon à être isolées à l'intérieur du contre-contact.
5. Poste de distribution selon l'une des revendications 1 à 4, caractérisé par le fait que les zones des pièces de contact (46,48) qui forment lescon- tacts de rupture et les extrémités de branches des baguettes qui coopèrent avec ces zones sont partiellement recouvertes de matière plastique (54, 56, 58, 60) qui, sous l'effet de l'arc électrique (L), dégage un gaz favorisant l'extinction de l'arc.
6. Poste de distribution selon l'une des revendications 1 à 5, caractérisé par le fait que les pièces de contact (46,48) qui se trouvent à l'intérieur du contre-contact (10) ont une forme en H pour la liaison des baguettes (20,22) opposées et que les extrémités des branches (24 à 30) des baguettes pénètrent, à l'état fermé, dans les évidements (50, 52) se trouvant dans la forme en H, tandis que les extrémités des branches de l'une au moins des baguettes se dégagent de l'évidement correspondant des pièces de contact (46,48).
7. Poste de distribution selon l'une des revendications 1 à 6, caractérisé par le fait que les deux baguettes (20,22) sont écartées entre elles par au moins un ressort hélicoïdal (64,66).
8. Poste de distribution selon l'unel des revendications 1 à 7, caractérisé par le fait que les baguettes (84, 86) sont reliées entre elles par des biellettes (88, 90) et que les baguettes sont écartées entre elles par des ressorts à branches (96, 98).
9. Poste de distribution selon l'une des revendications 1 à 8, caractérisé par le fait que les baguettes (84,86) comportent au moins un nez en saillie (100, 102) qui coopère avec une pièce de contact (104, 106) servant à ta liaison des deux baguettes à l'état fermé.
10. Poste de distribution selon l'une des revendications 1 à 3 et 5, caractérisé par le fait que les baguettes (124, 126) présentent chacune, à leur extrémité libre, une attache (128, 130) s'étendant perpendiculairement à cette extrémité, attache dont l'extrémité libre est montée de façon à pouvoir pivoter sur un point fixe, de telle façon que les baguettes pivotent autour des supports fixes (132, 134) des attaches.
11. Poste de distribution selon la revendication 10, caractérisé par le fait qu'à une extrémité au moins de chaque baguette (124) est fixée une palette de contact (142) aux extrémités libres de laquelle se trouve une pièce de contact (146) mobile qui coopère avec une pièce de contact fixe (150), la palette de contact étant conformée de façon qu'il se produise une ouverture du point de contact après séparation des pièces de contact de pince d'avec le contre-contact, mais encore avant la séparation des pièces de contact de pince d'avec les baguettes.
12. Poste de distribution selon la revendication 11, caractérisé par le fait qu'aux extrémités libres de chacune des attaches (128,130; 198) est fixé un tourillon (190, 191) à montage pivotant, auquel est à son tour fixée la palette de contact (142), de sorte qu'une rotation des baguettes produit également une rotation du tourillon et en même temps des palettes de contact.
13. Poste de distribution selon l'une des revendications 11 et 12, caractérisé par le fait que la palette de contact est conçue comme un contact à déclic et actionnée par un organe de commande (138) se trouvant entre la baguette (124) intéressée et la palette de contact (142), de sorte que cette dernière, lors d'un processus de coupure, soit amenée, à partir d'une première position stable dans laquelle la pièce de contact (146) mobile est en contact avec la pièce de contact (150) fixe, en passant par un point mort, à une seconde position stable dans laquelle la pièce de contact mobile se trouve éloignée de la pièce de contact fixe.
14. Poste de distribution selon la revendication 13, caractérisé par le fait que l'extrémité libre d'une attache (189) au moins est fixée à un tourillon (190, 191) à montage pivotant, auquel est fixé l'organe de commande pour les palettes de contact (142) conçues comme contacts à déclic, de telle façon qu'une rotation de l'attache entraîne une rotation du tourillon et, parsuite, de l'organe de commande.
15. Poste de distribution selon la revendication 14, caractérisé par le fait que l'organe de commande comprend un levier (198) fixé par une extrémité au tourillon (190,191 ) et une tige de raccordement (201 ) articulée sur l'autre extrémité du levier et sur la palette de contact (142) et constituée d'une matière isolante.
16. Poste de distribution selon l'une des revendications 10 à 15, caractérisé par le fait qu'un dispositif de soufflage d'arc (160), par exemple un paquet de tôles de soufflage d'arc est associé au point de contact (148, 150), constitué de la pièce de contact mobile et de la pièce de contact fixe.
17. Poste de distribution selon l'une des revendications 10 à 16, caractérisé par le fait que chaque dispositif de commutation, constitué d'une palette de contact (142), d'un contact fixe (205), éventuellement d'un dispositif de soufflage (174) et d'un organe de commande (198), est logé dans un boîtier (170) et qu'aux deux extrémités du contre-contact est prévu un boîtier de ce type, l'un des dispositifs de commutation étant affecté à l'une des baguettes, et l'autre dispositif de commutation à l'autre baguette.
18. Poste de distribution selon la revendication 17, caractérisé par le fait que le tourillon (190, 191) traverse le boîtier (170) et qu'il est monté dans la paroi du boîtier de façon à en être isolé.
19. Poste de distribution selon l'une des revendications 17 et 18, caractérisé par le fait que les boîtiers (170) sont pivotants par rapport au contre-contact.
20. Poste de distribution selon l'une des revendications 1 à 19, caractérisé par le fait que des baguettes de fixation (179, 180) en matière isolante sont disposées au-dessus et/ou au-dessous du contre-contact (112 à 118), transversalement à celui-ci, leur largeur (b) étant inférieure au diamètre du contre-contact.
21. Poste de distribution selon la revendication 20, caractérisé par le fait que l'une des baguettes de fixation (179) est disposée à distance du contre-contact (112 à 118) et forme ainsi un espace intermédiaire entre elle et ce dernier, de telle façon que les baguettes (124, 126; 183, 184) peuvent être enfoncées dans cet espace intermédiaire.
22. Poste de distribution selon la revendication 21, caractérisé par le fait que l'espace intermédiaire comporte une entretoise (182) disposée verticalement entre le contre-contact et la baguette de fixation (179).
23. Poste de distribution selon l'une des revendications 20 à 22, caractérisé par le fait que les baguettes de fixation (179,180), entre les boîtiers, sont fixées à ces derniers (170) parallèlement au contre-contact (112 à 118).
24. Poste de distribution selon l'une des revendications 1 à 23, caractérisé par le fait que les attaches sont constituées comme des éléments de levier (189,188) auxquels sontfixés, à l'une de leurs extrémités, les tourillons (190, 191 ) et, à leur autre extrémité, les baguettes (183, 184).
25. Poste de distribution selon l'une des revendications 1 à 24, caractérisé par le fait que les baguettes (183, 184) sont constituées chacune d'une tige d'acier (185) revêtue de cuivre.
26. Poste de distribution selon l'une des revendications 1 à 25, caractérisé par le fait qu'à l'intérieur de chaque boîtier (170) est prévu un élément de verrouillage qui assure une position relative déterminée du contre-contact et des boîtiers, au moins en position de coupure.
EP83105913A 1982-07-02 1983-06-16 Agencement de contact pour sectionneur pantographe Expired EP0110005B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83105913T ATE18102T1 (de) 1982-07-02 1983-06-16 Kontaktanordnung fuer scherentrennschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823224712 DE3224712A1 (de) 1982-07-02 1982-07-02 Schaltanlage
DE3224712 1982-07-02

Publications (2)

Publication Number Publication Date
EP0110005A1 EP0110005A1 (fr) 1984-06-13
EP0110005B1 true EP0110005B1 (fr) 1986-02-19

Family

ID=6167411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105913A Expired EP0110005B1 (fr) 1982-07-02 1983-06-16 Agencement de contact pour sectionneur pantographe

Country Status (4)

Country Link
EP (1) EP0110005B1 (fr)
AT (1) ATE18102T1 (fr)
DE (2) DE3224712A1 (fr)
ES (1) ES8404105A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3411587A1 (de) * 1984-03-29 1985-10-17 Brown, Boveri & Cie Ag, 6800 Mannheim Gegenkontaktsystem fuer einen scherentrenner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1490559A1 (de) * 1964-04-23 1969-07-10 Siemens Ag Einsaeulenstrennschalter
DE1228327B (de) * 1965-02-02 1966-11-10 Licentia Gmbh Scherentrenner-Kontakt
DE1281524B (de) * 1967-04-04 1968-10-31 Licentia Gmbh Scherentrenner-Kontakteinrichtung
DE2809499A1 (de) * 1978-03-06 1979-09-13 Licentia Gmbh Hochspannungstrennschalter
CH627025A5 (en) * 1978-04-14 1981-12-15 Sprecher & Schuh Ag Contact arrangement for a pantograph disconnecter switch
DE2832900A1 (de) * 1978-07-27 1980-02-07 Stettner & Co Mehrschichtiges bauteil fuer lichtbogenloeschkammer
DE2839914A1 (de) * 1978-09-14 1980-03-27 Bbc Brown Boveri & Cie Trennschalter mit einem haupt- und einem abreisskontakt
DE3044151A1 (de) * 1980-11-24 1982-06-24 Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München Modifizierte aminoplaste

Also Published As

Publication number Publication date
ES523651A0 (es) 1984-04-01
DE3362174D1 (en) 1986-03-27
EP0110005A1 (fr) 1984-06-13
DE3224712A1 (de) 1984-01-19
ES8404105A1 (es) 1984-04-01
ATE18102T1 (de) 1986-03-15

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