EP1274108A1 - Gas blast circuit breaker pole which can be assembled or disassembled without appreciable gas losses - Google Patents

Gas blast circuit breaker pole which can be assembled or disassembled without appreciable gas losses Download PDF

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Publication number
EP1274108A1
EP1274108A1 EP02291557A EP02291557A EP1274108A1 EP 1274108 A1 EP1274108 A1 EP 1274108A1 EP 02291557 A EP02291557 A EP 02291557A EP 02291557 A EP02291557 A EP 02291557A EP 1274108 A1 EP1274108 A1 EP 1274108A1
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EP
European Patent Office
Prior art keywords
assembly
circuit breaker
flange
seal
enclosure
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Withdrawn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
EP02291557A
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German (de)
French (fr)
Inventor
Olivier Grejon
Michel Nauche
Serge Paolozzi
Bernard Raynaud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Technology GmbH
Original Assignee
Alstom SA
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Filing date
Publication date
Application filed by Alstom SA filed Critical Alstom SA
Publication of EP1274108A1 publication Critical patent/EP1274108A1/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H33/561—Gas reservoirs composed of different independent pressurised compartments put in communication only after their assemblage

Definitions

  • the present invention relates to a gas circuit breaker pole under pressure can be assembled and disassembled without loss of gas appreciable and comprising a first enclosure called pole head comprising a first envelope comprising a first flange of connection having a circular orifice, said envelope containing a first moving part ending in a coupling member, coaxial with said audit orifice, and a second enclosure constituting an insulating column comprising a second envelope comprising a second connecting flange comprising a circular orifice, said second envelope containing a second mobile assembly consisting of an operating rod of said first mobile assembly and its end comprising complementary means coupling with said coupling member.
  • the poles of large circuit breakers and in particular the T-poles with two interrupting chambers in series, cannot be routed to their place of installation all assembled: the head of the pole on the one hand, constituting a first enclosure containing all the active, fixed and mobile of the two breaking chambers, and the insulating column on the other hand containing the connecting rod for moving parts of the circuit breaker pole, are therefore transported disassembled and are only assembled on the site.
  • this operation must be done in the factory for each of the two parts of the pole: pole head and insulating column.
  • the void is made, we fill the two parts in dielectric gas with an overpressure of the order of 0.3 bar and it is in this state that the parts are transported to the site. A once the assembly is completed, the gas pressure in the pole is brought to its nominal value.
  • the document FR-A1-2 568 405 describes a circuit breaker in which the head of each pole has a sliding airlock and the column a chimney, allowing coupling and uncoupling with low loss of gas corresponding to the combined volume of the airlock and the chimney.
  • this arrangement requires several additional rooms including the airlock sliding and a sliding sleeve, as well as one end particular in "chimney" of the column.
  • an overtravel of the moving parts of the pole, beyond the closed position of the circuit breaker must be planned.
  • Document FR 2 415 358 A describes a circuit breaker which allows, thanks to an inflatable seal, to ensure the transport of the insulator support before its assembly with the upper part having previously vacuumed then fills the insulator support with gas.
  • nothing is planned for the game upper and, on the other hand, it is necessary to deflate the seal of the insulating column after assembly.
  • the present invention aims to provide a simplified solution requiring only a few parts, allowing assembly and disassembly fast and requiring no other operation than that of assembly and pressurizing the pole with dielectric gas at nominal value, the gas communication between the two speakers being automatic and requiring no additional operation.
  • the invention thus relates to a gas circuit breaker pole under pressure can be assembled and disassembled without loss of gas appreciable and comprising a first enclosure called pole head comprising a first envelope comprising a first flange of connection having a circular orifice, said envelope containing a first moving part ending in a coupling member, coaxial with said audit orifice, and a second enclosure constituting an insulating column comprising a second envelope comprising a second connecting flange having a circular orifice, said second envelope containing a second crew mobile consisting of an operating rod of said first mobile assembly and its end comprising complementary coupling means with said coupling member, characterized in that the connecting flange of each enclosure is equipped with an annular elastomer seal, fixed to the corresponding connecting flange crossed by the moving element corresponding, said seal of each enclosure ensuring, for the assembly of the flanges and the coupling of the internal moving parts, sliding sealing along the respective moving assembly and means being provided to break the seal along said crews mobile at the end of assembly
  • said seals Annular elastomers are tiltable deformable seals.
  • a said tiltable deformable joint comprises a external anchoring ring connected by an isthmus to a joint body comprising a heel and a lip, the heel of each joint extending beyond the outer plane of the corresponding flange.
  • said means for break the seal along said moving parts have a drawer sliding whose axial length is greater than the distance separating the two annular elastomer seals in the assembled position of the first and of the second envelope.
  • a so-called elastomeric seal annular comprises a first peripheral part taken between a flange and a counter flange, a second part constituting a hollow ring deformable with walls with more flexible parts and others more rigid, and a third central part constituting a simple disc of weak thickness ensuring sliding sealing along the moving assembly.
  • a circuit breaker pole before its assembly and comprising a first enclosure constituting the pole head 1 comprising a first envelope 2 containing a first moving part 3 to which the active moving parts not linked represented by the circuit breaker.
  • the moving equipment 3 ends with a member coupling 4 coaxial to a circular orifice 5 of the envelope made in a first connecting flange 6 attached and fixed by screws 7 to a base 8 having an opening 9 coaxial with the orifice 5.
  • the first connecting flange 6 is equipped with an elastomer seal annular 10 ensuring a sliding seal along the crew mobile 3, between the inside of the envelope 2 and the outside.
  • the pole head 1 Before assembly, the pole head 1 is closed by a cover 11 fixed by screws 12 with interposition of a seal 36. This cover protects the assembly member 4.
  • a vacuum is created in the pole head and then it is filled with a gas dielectric at an overpressure of about 0.3 bar.
  • pole head 1 On site, pole head 1 must be assembled within one second enclosure 13 also filled with a dielectric gas.
  • the second casing 14 has a second connecting flange 17 fixed by screws 18 to a base 19 of the casing 14.
  • the second connecting flange 17 provided with a circular orifice 20 is fitted with an annular elastomeric seal 21 identical to seal 10 and ensuring a sliding seal along the connecting rod 15, between the interior of the column 13 and the outside.
  • the column 13 is provided, before its assembly with the head, of a protective cover 22 of the means assembly 16, by means of screws 23 with interposition of a seal 37.
  • the assembly member 4 is surrounded by a sliding jacket 24 ensuring continuity and equality of diameter once the moving parts carried out as shown in fig. 2 where, the covers 11 and 22 having been removed, the two moving parts 3 and 15 were coupled, then the sleeve 24 has been slid downwards thus covering the organs mating of a smooth surface.
  • a seal 25 is placed on the flange 17.
  • the pole head 1 is lowered so as to assemble the two flanges 6 and 17 with screws 26 as seen in fig. 3.
  • the seal 21 slides along the connecting rod 15 and the jacket 24.
  • seals 10 and 21 deform and lose contact with the crew mobile 15-24, thus ensuring gas communication between the two enclosures 1 and 13.
  • the seals 10 and 21, as can be seen on the Fig. 4 enlarged, are deformable seals each comprising a ring external anchoring 26, 27 connected by an isthmus 28, 29 to a joint body 30, 31, comprising a lip 32, 33, and a heel 34, 35.
  • the heels 34, 35 protrude from the outside plane of the respective flanges 6, 17 so that during the assembly of the flanges, the heels 34 and 35 meet making tilt the seal body 30, 31 around the isthmus 28, 29.
  • the coupling and uncoupling of the head 1 and column 13 are made by ensuring the respective tightness of the two parts and therefore without losing gas while at the end of mating, the communication is established between the two speakers and this automatically without any additional operation.
  • the assembly finished, the pole is filled with dielectric gas at its nominal pressure.
  • Figs. 5 and 6 show a second embodiment of the invention.
  • the casing 2 of the head 1 comprises a flange 44 having a circular opening 45, the flange being fitted with a seal annular elastomer 46 which is a simple flat disc-like seal attached by a counter flange 47.
  • the seal 46 surrounds the sliding sleeve 24.
  • the flange 17 of the casing 14 is equipped with a seal identical 48.
  • the flange 17 is equipped, outside of the enclosure 13, with respect to the seal 48, of a sliding drawer 49 the length of which axial is greater than the distance separating the two seals 46, 48 in position assembly of the two enclosures when the two flanges 44 and 17 are at contact with each other, as shown in fig. 6 where we see that the two ends of the drawer 49 come into contact with the seals 46, 48 causing the rupture of the seal and thus ensuring communication between the two speakers 1 and 13.
  • Figs. 7 to 10 show very schematically a third example for implementing the invention.
  • the seals each have a first peripheral part 55, 56 taken between a flange and a counter flange, respectively 57, 58 and 59, 60, a second part 61, 62 constituting a deformable hollow ring comprising walls of which certain parts such as 63, 64, 65, 66 are more flexible and others 67, 68, 69, 70 are more rigid, and finally a third central part 71, 72 constituting a simple weak disc thickness ensuring sliding sealing along the moving parts 3, 15.
  • the central part 71, 72 possibly includes a terminal bulge ring finger 73, 74.
  • the separate chambers 1 and 13 are filled with dielectric gas under a slight overpressure of around 0.3 bar. Once the assembly is completed, we continues filling with dielectric gas until pressure is obtained rated service. In the case of this third exemplary embodiment, it is this operation which makes it possible to "break" the tightness of the joints 53 and 54 to allow communication between the two speakers 1 and 13.

Landscapes

  • Gasket Seals (AREA)
  • Gas-Insulated Switchgears (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

The gas pressured circuit breaker has an envelope (2) with a connection strap (6), and a second enclosure (13) with a second envelope (14), and connection strap (17). Each enclosure has an annular elastomer joint (10,21) fixed to the relevant connection strap. The joint seals slide along the mobile sections (3,15). A mechanism reversibly seals and holds the annular elastomer to assure communication between chambers.

Description

La présente invention concerne un pôle de disjoncteur à gaz sous pression pouvant être assemblé et désassemblé sans perte de gaz appréciable et comportant une première enceinte dite tête de pôle comportant une première enveloppe comportant une première bride de liaison ayant un orifice circulaire, ladite enveloppe contenant un premier équipage mobile se terminant par un organe d'accouplement, coaxial audit orifice, et une seconde enceinte constituant une colonne isolante comportant une seconde enveloppe comprenant une seconde bride de liaison comportant un orifice circulaire, ladite seconde enveloppe contenant un second équipage mobile consistant en une bielle de manoeuvre dudit premier équipage mobile et son extrémité comportant des moyens complémentaires d'accouplement avec ledit organe d'accouplement.The present invention relates to a gas circuit breaker pole under pressure can be assembled and disassembled without loss of gas appreciable and comprising a first enclosure called pole head comprising a first envelope comprising a first flange of connection having a circular orifice, said envelope containing a first moving part ending in a coupling member, coaxial with said audit orifice, and a second enclosure constituting an insulating column comprising a second envelope comprising a second connecting flange comprising a circular orifice, said second envelope containing a second mobile assembly consisting of an operating rod of said first mobile assembly and its end comprising complementary means coupling with said coupling member.

Les pôles des disjoncteurs de grande dimension, et en particulier les pôles en T à deux chambres de coupure en série, ne peuvent pas être acheminés sur leur lieu d'installation tout montés : la tête du pôle d'une part, constituant une première enceinte contenant tous les organes actifs, fixes et mobiles des deux chambres de coupure, et la colonne isolante d'autre part contenant la bielle de manoeuvre des parties mobiles du pôle de disjoncteur, sont donc transportées désassemblées et ne sont assemblées que sur le site.The poles of large circuit breakers, and in particular the T-poles with two interrupting chambers in series, cannot be routed to their place of installation all assembled: the head of the pole on the one hand, constituting a first enclosure containing all the active, fixed and mobile of the two breaking chambers, and the insulating column on the other hand containing the connecting rod for moving parts of the circuit breaker pole, are therefore transported disassembled and are only assembled on the site.

Avant le remplissage du pôle en gaz diélectrique tel que du SF6, il est nécessaire de faire le vide dans le pôle. Cependant cette opération nécessite un groupe de pompage pas toujours disponible sur le site.Before filling the pole with dielectric gas such as SF6, it is necessary to create a vacuum in the pole. However, this operation requires a pumping unit not always available on site.

Aussi, cette opération doit-elle être faite en usine pour chacune des deux parties du pôle : tête de pôle et colonne isolante. Le vide fait, on remplit les deux parties en gaz diélectrique avec une surpression de l'ordre de 0,3 bar et c'est dans cet état que les parties sont acheminées sur le site. Une fois l'assemblage effectué, la pression de gaz dans le pôle est mise à sa valeur nominale.Also, this operation must be done in the factory for each of the two parts of the pole: pole head and insulating column. The void is made, we fill the two parts in dielectric gas with an overpressure of the order of 0.3 bar and it is in this state that the parts are transported to the site. A once the assembly is completed, the gas pressure in the pole is brought to its nominal value.

Lors de l'assemblage, se pose donc le problème d'assurer la liaison des deux enceintes et l'accouplement de la bielle avec l'extrémité d'accouplement de l'équipage mobile, sans perte de gaz ou avec une perte minime, tout en assurant, en fin d'assemblage, la communication gazeuse entre les deux enceintes.During assembly, there is therefore the problem of ensuring the connection of the two enclosures and the coupling of the connecting rod with the end coupling of the moving part, without loss of gas or with a loss minimal, while ensuring, at the end of assembly, gas communication between the two speakers.

Le document FR-A1-2 568 405 décrit un disjoncteur dans lequel la tête de chaque pôle comporte un sas coulissant et la colonne une cheminée, permettant l'accouplement et le désaccouplement avec une faible perte de gaz correspondant au volume réuni du sas et de la cheminée. Cependant, cette disposition nécessite plusieurs pièces supplémentaires dont le sas coulissant et une chemise de coulissement, ainsi qu'une extrémité particulière en "cheminée" de la colonne. En outre, une sur-course des parties mobiles du pôle, au-delà de la position fermée du disjoncteur, doit être prévue.The document FR-A1-2 568 405 describes a circuit breaker in which the head of each pole has a sliding airlock and the column a chimney, allowing coupling and uncoupling with low loss of gas corresponding to the combined volume of the airlock and the chimney. However, this arrangement requires several additional rooms including the airlock sliding and a sliding sleeve, as well as one end particular in "chimney" of the column. In addition, an overtravel of the moving parts of the pole, beyond the closed position of the circuit breaker, must be planned.

Le document FR 2 415 358 A décrit un disjoncteur qui permet, grâce à un joint gonflable, d'assurer le transport du support isolateur avant son assemblage avec la partie supérieure en ayant fait préalablement le vide puis remplit de gaz le support isolateur. Cependant, rien n'est prévu pour la partie supérieure et, d'autre part, il est nécessaire de dégonfler le joint de la colonne isolante après l'assemblage.Document FR 2 415 358 A describes a circuit breaker which allows, thanks to an inflatable seal, to ensure the transport of the insulator support before its assembly with the upper part having previously vacuumed then fills the insulator support with gas. However, nothing is planned for the game upper and, on the other hand, it is necessary to deflate the seal of the insulating column after assembly.

La présente invention a pour but de proposer une solution simplifiée ne nécessitant que peu de pièces, permettant un montage et un démontage rapides et ne nécessitant aucune autre opération que celle de l'assemblage et de la mise en pression du pôle en gaz diélectrique à la valeur nominale, la communication gazeuse entre les deux enceintes étant automatique et n'exigeant aucune opération supplémentaire.The present invention aims to provide a simplified solution requiring only a few parts, allowing assembly and disassembly fast and requiring no other operation than that of assembly and pressurizing the pole with dielectric gas at nominal value, the gas communication between the two speakers being automatic and requiring no additional operation.

L'invention a ainsi pour objet un pôle de disjoncteur à gaz sous pression pouvant être assemblé et désassemblé sans perte de gaz appréciable et comportant une première enceinte dite tête de pôle comprenant une première enveloppe comportant une première bride de liaison ayant un orifice circulaire, ladite enveloppe contenant un premier équipage mobile se terminant par un organe d'accouplement, coaxial audit orifice, et une seconde enceinte constituant une colonne isolante comportant une seconde enveloppe comprenant une seconde bride de liaison ayant un orifice circulaire, ladite seconde enveloppe contenant un second équipage mobile consistant en une bielle de manoeuvre dudit premier équipage mobile et son extrémité comportant des moyens complémentaires d'accouplement avec ledit organe d'accouplement, caractérisé en ce que la bride de liaison de chaque enceinte est équipée d'un joint élastomère annulaire, fixé à la bride de liaison correspondante et traversé par l'équipage mobile correspondant, ledit joint de chaque enceinte assurant, pendant l'assemblage des brides et l'accouplement des équipages mobiles internes, une étanchéité coulissante le long de l'équipage mobile respectif et des moyens étant prévus pour casser l'étanchéité le long desdits équipages mobiles en fin d'assemblage, par déformation réversible et automatique dudit joint élastomère annulaire, afin d'assurer la communication entre les deux enceintes.The invention thus relates to a gas circuit breaker pole under pressure can be assembled and disassembled without loss of gas appreciable and comprising a first enclosure called pole head comprising a first envelope comprising a first flange of connection having a circular orifice, said envelope containing a first moving part ending in a coupling member, coaxial with said audit orifice, and a second enclosure constituting an insulating column comprising a second envelope comprising a second connecting flange having a circular orifice, said second envelope containing a second crew mobile consisting of an operating rod of said first mobile assembly and its end comprising complementary coupling means with said coupling member, characterized in that the connecting flange of each enclosure is equipped with an annular elastomer seal, fixed to the corresponding connecting flange crossed by the moving element corresponding, said seal of each enclosure ensuring, for the assembly of the flanges and the coupling of the internal moving parts, sliding sealing along the respective moving assembly and means being provided to break the seal along said crews mobile at the end of assembly, by reversible and automatic deformation of said annular elastomer seal, to ensure communication between the two speakers.

Selon une première réalisation de l'invention, lesdits joints élastomères annulaires sont des joints déformables basculants.According to a first embodiment of the invention, said seals Annular elastomers are tiltable deformable seals.

Avantageusement, un dit joint déformable basculant comprend un anneau d'ancrage externe relié par un isthme à un corps de joint comportant un talon et une lèvre, le talon de chaque joint dépassant le plan extérieur de la bride correspondante.Advantageously, a said tiltable deformable joint comprises a external anchoring ring connected by an isthmus to a joint body comprising a heel and a lip, the heel of each joint extending beyond the outer plane of the corresponding flange.

Selon une deuxième réalisation de l'invention, lesdits moyens pour casser l'étanchéité le long desdits équipages mobiles comportent un tiroir coulissant dont la longueur axiale est supérieure à la distance séparant les deux joints élastomères annulaires en position assemblée de la première et de la seconde enveloppe.According to a second embodiment of the invention, said means for break the seal along said moving parts have a drawer sliding whose axial length is greater than the distance separating the two annular elastomer seals in the assembled position of the first and of the second envelope.

Selon une troisième réalisation de l'invention, un dit joint élastomère annulaire comporte une première partie périphérique prise entre une bride et une contre-bride, une seconde partie constituant un anneau creux déformable comportant des parois à parties plus souples et d'autres plus rigides, et une troisième partie centrale constituant un simple disque de faible épaisseur assurant l'étanchéité coulissante le long de l'équipage mobile.According to a third embodiment of the invention, a so-called elastomeric seal annular comprises a first peripheral part taken between a flange and a counter flange, a second part constituting a hollow ring deformable with walls with more flexible parts and others more rigid, and a third central part constituting a simple disc of weak thickness ensuring sliding sealing along the moving assembly.

On va maintenant donner la description de quelques exemples de mise en oeuvre de l'invention en se reportant au dessin annexé dans lequel :

  • La fig. 1 montre, avant leur assemblage, les deux parties d'un pôle de disjoncteur selon une première réalisation de l'invention.
  • La fig. 2 montre le pôle de disjoncteur de la fig. 1 en cours d'assemblage.
  • La fig. 3 montre le pôle assemblé.
  • La fig. 4 montre en vue agrandie, et dans leurs positions avant et après assemblage des deux parties du pôle, les joints annulaires assurant, pendant l'assemblage, une étanchéité coulissante le long des équipages mobiles respectifs.
  • La fig. 5 montre une deuxième réalisation de l'invention dans une vue similaire à celle de la fig. 1.
  • La fig. 6 montre le pôle de la fig. 5 une fois l'assemblage effectué.
  • Les fig. 7 à 10 sont des vues schématiques montrant les étapes d'assemblage d'une troisième réalisation de l'invention.
    • We will now give the description of some examples of implementation of the invention with reference to the appended drawing in which:
  • Fig. 1 shows, before their assembly, the two parts of a circuit breaker pole according to a first embodiment of the invention.
  • Fig. 2 shows the circuit breaker pole of fig. 1 during assembly.
  • Fig. 3 shows the assembled pole.
  • Fig. 4 shows in an enlarged view, and in their positions before and after assembly of the two parts of the pole, the annular seals ensuring, during assembly, a sliding seal along the respective moving parts.
  • Fig. 5 shows a second embodiment of the invention in a view similar to that of FIG. 1.
  • Fig. 6 shows the pole of fig. 5 after assembly.
  • Figs. 7 to 10 are schematic views showing the stages of assembly of a third embodiment of the invention.

    • En se référant à la fig. 1, on voit partiellement un pôle de disjoncteur avant son assemblage et comportant une première enceinte constituant la tête de pôle 1 comprenant une première enveloppe 2 contenant un premier équipage mobile 3 auquel sont liées les parties mobiles actives non représentées du disjoncteur. L'équipage mobile 3 se termine par un organe d'accouplement 4 coaxial à un orifice circulaire 5 de l'enveloppe pratiqué dans une première bride de liaison 6 rapportée et fixée par des vis 7 à une embase 8 comportant une ouverture 9 coaxiale à l'orifice 5.Referring to fig. 1, we partially see a circuit breaker pole before its assembly and comprising a first enclosure constituting the pole head 1 comprising a first envelope 2 containing a first moving part 3 to which the active moving parts not linked represented by the circuit breaker. The moving equipment 3 ends with a member coupling 4 coaxial to a circular orifice 5 of the envelope made in a first connecting flange 6 attached and fixed by screws 7 to a base 8 having an opening 9 coaxial with the orifice 5.

    La première bride de liaison 6 est équipée d'un joint élastomère annulaire 10 assurant une étanchéité coulissante le long de l'équipage mobile 3, entre l'intérieur de l'enveloppe 2 et l'extérieur.The first connecting flange 6 is equipped with an elastomer seal annular 10 ensuring a sliding seal along the crew mobile 3, between the inside of the envelope 2 and the outside.

    Avant son assemblage, la tête de pôle 1 est fermée par un couvercle 11 fixé par des vis 12 avec interposition d'un joint 36. Ce couvercle protège l'organe d'assemblage 4.Before assembly, the pole head 1 is closed by a cover 11 fixed by screws 12 with interposition of a seal 36. This cover protects the assembly member 4.

    Le vide est fait dans la tête de pôle et ensuite elle est remplie d'un gaz diélectrique à une surpression de l'ordre de 0,3 bar.A vacuum is created in the pole head and then it is filled with a gas dielectric at an overpressure of about 0.3 bar.

    Sur le site, la tête de pôle 1 doit être assemblée à une seconde enceinte 13 également remplie d'un gaz diélectrique. Il s'agit de la colonne isolante du pôle qui comprend une seconde enveloppe 14 contenant un second équipage mobile 15 constitué par une bielle de manoeuvre du premier équipage mobile 3, dont une extrémité comporte des moyens complémentaires 16 d'accouplement avec l'organe d'accouplement 4 de l'équipage mobile 3.On site, pole head 1 must be assembled within one second enclosure 13 also filled with a dielectric gas. This is the column pole insulator which includes a second envelope 14 containing a second mobile assembly 15 constituted by an operating rod of the first mobile assembly 3, one end of which comprises means additional 16 coupling with the coupling member 4 of the moving part 3.

    La seconde enveloppe 14 comporte une seconde bride de liaison 17 fixée par des vis 18 à une embase 19 de l'enveloppe 14.The second casing 14 has a second connecting flange 17 fixed by screws 18 to a base 19 of the casing 14.

    La seconde bride de liaison 17 pourvue d'un orifice circulaire 20 est équipée d'un joint élastomère annulaire 21 identique au joint 10 et assurant une étanchéité coulissante le long de la bielle 15, entre l'intérieur de la colonne 13 et l'extérieur.The second connecting flange 17 provided with a circular orifice 20 is fitted with an annular elastomeric seal 21 identical to seal 10 and ensuring a sliding seal along the connecting rod 15, between the interior of the column 13 and the outside.

    Comme la tête de pôle 1, la colonne 13 est pourvue, avant son assemblage avec la tête, d'un couvercle de protection 22 des moyens d'assemblage 16, au moyen de vis 23 avec interposition d'un joint 37.Like the pole head 1, the column 13 is provided, before its assembly with the head, of a protective cover 22 of the means assembly 16, by means of screws 23 with interposition of a seal 37.

    L'organe d'assemblage 4 est entouré d'une chemise coulissante 24 assurant la continuité et l'égalité de diamètre une fois l'accouplement des équipages mobiles effectué comme le montre la fig. 2 où, les couvercles 11 et 22 ayant été ôtés, on a accouplé les deux équipages mobiles 3 et 15, puis la chemise 24 a été coulissée vers le bas recouvrant ainsi les organes d'accouplement d'une surface lisse.The assembly member 4 is surrounded by a sliding jacket 24 ensuring continuity and equality of diameter once the moving parts carried out as shown in fig. 2 where, the covers 11 and 22 having been removed, the two moving parts 3 and 15 were coupled, then the sleeve 24 has been slid downwards thus covering the organs mating of a smooth surface.

    Préalablement à l'accouplement des équipages mobiles, et après avoir ôté les couvercles 11 et 22, un joint 25 est placé sur la bride 17.Prior to the coupling of mobile equipment, and after having removed the covers 11 and 22, a seal 25 is placed on the flange 17.

    Une fois l'accouplement des équipages mobiles effectué et la chemise 24 abaissée, on descend la tête de pôle 1 de façon à assembler les deux brides 6 et 17 avec des vis 26 comme on le voit fig. 3. Au cours de cette descente, le joint 21 coulisse le long de la bielle 15 et de la chemise 24.Once the mobile equipment has been coupled and the liner 24 lowered, the pole head 1 is lowered so as to assemble the two flanges 6 and 17 with screws 26 as seen in fig. 3. During this lowering, the seal 21 slides along the connecting rod 15 and the jacket 24.

    En fin d'accouplement, lorsque les deux brides 6, 17 viennent en contact, les joints 10 et 21 se déforment et perdent le contact avec l'équipage mobile 15-24, assurant ainsi la communication gazeuse entre les deux enceintes 1 et 13. Pour cela, les joints 10 et 21, comme on le voit bien sur la fig. 4 agrandie, sont des joints déformables comportant chacun un anneau d'ancrage externe 26, 27 relié par un isthme 28, 29 à un corps de joint 30, 31, comportant une lèvre 32, 33, et un talon 34, 35. Les talons 34, 35 dépassent le plan extérieur des brides respectives 6, 17 de telle sorte que lors de l'assemblage des brides, les talons 34 et 35 se rencontrent faisant basculer le corps du joint 30, 31 autour de l'isthme 28, 29.At the end of coupling, when the two flanges 6, 17 come in contact, seals 10 and 21 deform and lose contact with the crew mobile 15-24, thus ensuring gas communication between the two enclosures 1 and 13. For this, the seals 10 and 21, as can be seen on the Fig. 4 enlarged, are deformable seals each comprising a ring external anchoring 26, 27 connected by an isthmus 28, 29 to a joint body 30, 31, comprising a lip 32, 33, and a heel 34, 35. The heels 34, 35 protrude from the outside plane of the respective flanges 6, 17 so that during the assembly of the flanges, the heels 34 and 35 meet making tilt the seal body 30, 31 around the isthmus 28, 29.

    Ce basculement est bien visible sur la partie inférieure de la fig. 4 et les lèvres ne viennent plus au contact de la chemise 24 comme on le voit fig. 3. Cette déformation est réversible au démontage.This tilting is clearly visible on the lower part of fig. 4 and the lips no longer come into contact with the shirt 24 as can be seen Fig. 3. This deformation is reversible upon disassembly.

    Ainsi, grâce à l'invention, l'accouplement et le désaccouplement de la tête 1 et de la colonne 13 sont faits en assurant l'étanchéité respective des deux parties et donc sans perdre de gaz alors qu'en fin d'accouplement, la communication est établie entre les deux enceintes et ceci automatiquement sans aucune opération supplémentaire. Bien entendu, l'assemblage terminé, le pôle est rempli de gaz diélectrique à sa pression nominale. Thus, thanks to the invention, the coupling and uncoupling of the head 1 and column 13 are made by ensuring the respective tightness of the two parts and therefore without losing gas while at the end of mating, the communication is established between the two speakers and this automatically without any additional operation. Of course, the assembly finished, the pole is filled with dielectric gas at its nominal pressure.

    Les fig. 5 et 6 montrent une deuxième réalisation de l'invention.Figs. 5 and 6 show a second embodiment of the invention.

    Dans cet exemple, l'enveloppe 2 de la tête 1 comprend une bride 44 comportant un orifice circulaire 45, la bride étant équipée d'un joint élastomère annulaire 46 qui est un simple joint plat en forme de disque fixé par une contre-bride 47. Le joint 46 enserre la chemise coulissante 24.In this example, the casing 2 of the head 1 comprises a flange 44 having a circular opening 45, the flange being fitted with a seal annular elastomer 46 which is a simple flat disc-like seal attached by a counter flange 47. The seal 46 surrounds the sliding sleeve 24.

    De la même façon, la bride 17 de l'enveloppe 14 est équipée d'un joint identique 48. Dans cette réalisation, de façon à "casser" l'étanchéité assurée par les joints 46, 48 à la fin de l'assemblage afin d'assurer la communication entre les deux enceintes 1 et 13, la bride 17 est équipée, à l'extérieur de l'enceinte 13, par rapport au joint 48, d'un tiroir coulissant 49 dont la longueur axiale est supérieure à la distance séparant les deux joints 46, 48 en position assemblée des deux enceintes lorsque les deux brides 44 et 17 sont au contact l'une de l'autre, comme le montre bien la fig. 6 où l'on voit que les deux extrémités du tiroir 49 entrent en contact avec les joints 46, 48 provoquant la rupture de l'étanchéité et assurant ainsi la communication entre les deux enceintes 1 et 13.Similarly, the flange 17 of the casing 14 is equipped with a seal identical 48. In this embodiment, so as to "break" the seal provided by the seals 46, 48 at the end of the assembly in order to ensure communication between the two enclosures 1 and 13, the flange 17 is equipped, outside of the enclosure 13, with respect to the seal 48, of a sliding drawer 49 the length of which axial is greater than the distance separating the two seals 46, 48 in position assembly of the two enclosures when the two flanges 44 and 17 are at contact with each other, as shown in fig. 6 where we see that the two ends of the drawer 49 come into contact with the seals 46, 48 causing the rupture of the seal and thus ensuring communication between the two speakers 1 and 13.

    Lors de l'assemblage, on ôte les couvercles 11 et 22, on accouple les équipages mobiles 3 et 15 par les organes d'accouplement 4 et 5, on abaisse la chemise coulissante 24, puis on descend la tête 1 pour accoster les brides 44 et 17. Un joint 50 a été préalablement placé entre les brides. En fin d'accouplement, le tiroir coulissant 49 est positionné par un rebord annulaire 51 qui prend place entre la bride 17 et la contre-bride 47 dans un évidemment 52 de la bride 17.During assembly, remove the covers 11 and 22, couple the moving parts 3 and 15 by the coupling members 4 and 5, lower the sliding shirt 24, then lower head 1 to dock the flanges 44 and 17. A seal 50 has been previously placed between the flanges. In end of coupling, the sliding drawer 49 is positioned by a flange annular 51 which takes place between the flange 17 and the counter flange 47 in a obviously 52 of the flange 17.

    Les fig. 7 à 10 montrent très schématiquement un troisième exemple de mise en oeuvre de l'invention.Figs. 7 to 10 show very schematically a third example for implementing the invention.

    Sur ces figures, on voit très schématiquement et partiellement la première enceinte 1 et la seconde enceinte 13 avec les équipages mobiles respectifs internes 3 et 15 et les organes d'accouplement 4 et 16. Dans cette réalisation, les joints élastomères annulaires sont référencés 53 et 54.In these figures, we can very schematically and partially see the first enclosure 1 and second enclosure 13 with the moving parts respective internal 3 and 15 and the coupling members 4 and 16. In this embodiment, the annular elastomer seals are referenced 53 and 54.

    Les joints comportent chacun une première partie périphérique 55, 56 prise entre une bride et une contre-bride, respectivement 57, 58 et 59, 60, une seconde partie 61, 62 constituant un anneau creux déformable comportant des parois dont certaines parties telles que 63, 64, 65, 66 sont plus souples et d'autres 67, 68, 69, 70 sont plus rigides, et enfin une troisième partie centrale 71, 72 constituant un simple disque de faible épaisseur assurant l'étanchéité coulissante le long des équipages mobiles 3, 15. La partie centrale 71, 72 comporte éventuellement un renflement terminal annulaire 73, 74.The seals each have a first peripheral part 55, 56 taken between a flange and a counter flange, respectively 57, 58 and 59, 60, a second part 61, 62 constituting a deformable hollow ring comprising walls of which certain parts such as 63, 64, 65, 66 are more flexible and others 67, 68, 69, 70 are more rigid, and finally a third central part 71, 72 constituting a simple weak disc thickness ensuring sliding sealing along the moving parts 3, 15. The central part 71, 72 possibly includes a terminal bulge ring finger 73, 74.

    Avant l'accouplement, comme dans les exemples précédents, les enceintes séparées 1 et 13 sont remplies de gaz diélectrique sous une légère surpression d'environ 0,3 bar. Une fois l'assemblage effectué, on poursuit le remplissage en gaz diélectrique jusqu'à l'obtention de la pression nominale de service. Dans le cas de ce troisième exemple de réalisation, c'est cette opération qui permet de "casser" l'étanchéité des joints 53 et 54 pour permettre la communication entre les deux enceintes 1 et 13.Before mating, as in the previous examples, the separate chambers 1 and 13 are filled with dielectric gas under a slight overpressure of around 0.3 bar. Once the assembly is completed, we continues filling with dielectric gas until pressure is obtained rated service. In the case of this third exemplary embodiment, it is this operation which makes it possible to "break" the tightness of the joints 53 and 54 to allow communication between the two speakers 1 and 13.

    Pour cela, une fois l'assemblage effectué, tel que représenté fig. 8, on remplit l'appareil par la vanne, non représentée, prévue à cet effet reliée à l'enveloppe inférieure 14. La pression augmente du côté A (fig. 9) provoquant la déformation des parties 66 et 72 du joint 54 puis, la pression augmentant en B, la partie 65 se déforme également et on arrive pour ce joint 54 à la position telle que représentée fig. 10, l'espace C, clos, ne voyant pas sa pression augmenter. Le même phénomène se produit avec un bref retard pour le joint 53 qui, en fin de compte, prendra la même position que le joint 54. L'étanchéité est ainsi "cassée" et l'espace interne des deux enceintes est mis en communication. Ainsi, là encore, la déformation des joints est réversible et automatique, et aucune opération supplémentaire n'est nécessaire, ni pour assurer la communication gazeuse entre les deux parties à la fin de l'assemblage, ni pour restaurer l'étanchéité lors d'un éventuel démontage. Il faut seulement, dans le cas de ce dernier exemple, remplir le pôle en gaz diélectrique à la pression nominale à la fin de l'assemblage pour "casser" l'étanchéité, mais cette opération est faite de toute façon et de même, au démontage, pour retrouver l'étanchéité, il faut diminuer la surpression nominale, mais là encore cela est fait de toute façon.For this, once the assembly has been carried out, as shown in fig. 8, we fills the device by the valve, not shown, provided for this purpose connected to the lower envelope 14. The pressure increases on side A (fig. 9) causing the deformation of the parts 66 and 72 of the seal 54 then, the pressure increasing in B, the part 65 also deforms and we arrive for this joint 54 at the position as shown in fig. 10, space C, closed, not seeing its pressure increase. The same phenomenon occurs with a brief delay for the joint 53 which, in the end, will take the same position as the joint 54. The seal is thus "broken" and the internal space of the two enclosures is put in communication. So again, the deformation of the joints is reversible and automatic, and no additional operation is necessary necessary, nor to ensure gas communication between the two parties at the end of the assembly, nor to restore the sealing during a possible disassembly. It is only necessary, in the case of the latter example, to complete the pole in dielectric gas at nominal pressure at the end of assembly for "break" the seal, but this operation is done anyway and even, upon dismantling, to regain watertightness, the nominal overpressure, but again this is done anyway.

    Claims (5)

    Pôle de disjoncteur à gaz sous pression pouvant être assemblé et désassemblé sans perte de gaz appréciable et comportant une première enceinte (1) dite tête de pôle comprenant une première enveloppe (2) comportant une première bride de liaison (6) ayant un orifice circulaire (5), ladite enveloppe contenant un premier équipage mobile (3) se terminant par un organe d'accouplement (4), coaxial audit orifice (5), et une seconde enceinte (13) constituant une colonne isolante comportant une seconde enveloppe (14) comprenant une seconde bride de liaison (17) comportant un orifice circulaire (20), ladite seconde enveloppe (14) contenant un second équipage mobile (15) consistant en une bielle de manoeuvre dudit premier équipage mobile (3) et son extrémité comportant des moyens complémentaires d'accouplement (16) avec ledit organe d'accouplement (4), caractérisé en ce que la bride de liaison (6, 17) de chaque enceinte (1, 13) est équipée d'un joint élastomère (10, 21 ; 46, 48 ; 53, 54) annulaire, fixé à la bride de liaison correspondante et traversé par l'équipage mobile correspondant, ledit joint de chaque enceinte assurant, pendant l'assemblage des brides et l'accouplement des équipages mobiles internes, une étanchéité coulissante le long de l'équipage mobile respectif (3, 15) et des moyens étant prévus pour casser l'étanchéité le long desdits équipages mobiles en fin d'assemblage, par déformation réversible et automatique dudit joint élastomère annulaire, afin d'assurer la communication entre les deux enceintes (1, 13).Pressurized gas circuit breaker pole which can be assembled and disassembled without appreciable loss of gas and comprising a first enclosure (1) called pole head comprising a first casing (2) comprising a first connecting flange (6) having a circular orifice ( 5), said envelope containing a first mobile assembly (3) ending in a coupling member (4), coaxial with said orifice (5), and a second enclosure (13) constituting an insulating column comprising a second envelope (14) comprising a second connecting flange (17) comprising a circular orifice (20), said second casing (14) containing a second mobile assembly (15) consisting of an operating rod of said first mobile assembly (3) and its end comprising means complementary coupling (16) with said coupling member (4), characterized in that the connecting flange (6, 17) of each enclosure (1, 13) is equipped with an elastomer seal (10, 21; 46 , 48; 53, 54) annular, fixed to the corresponding connecting flange and traversed by the corresponding mobile equipment, said joint of each enclosure ensuring, during the assembly of the flanges and the coupling of the internal mobile equipment, a sliding seal along the respective movable assembly (3, 15) and means being provided to break the seal along said movable assemblies at the end of assembly, by reversible and automatic deformation of said annular elastomer seal, in order to ensure communication between the two speakers (1, 13). Pôle de disjoncteur selon la revendication 1, caractérisé en ce que lesdits joints élastomères annulaires sont des joints déformables basculants (10, 21).Circuit breaker pole according to claim 1, characterized in that said annular elastomeric seals are deformable tilting seals (10, 21). Pôle de disjoncteur selon la revendication 2, caractérisé en ce qu'un dit joint déformable basculant (10, 21) comprend un anneau d'ancrage externe (26, 27) relié par un isthme (28, 29) à un corps de joint (30, 31) comportant un talon (34, 35) et une lèvre (32, 33), le talon (34, 35) de chaque joint dépassant le plan extérieur de la bride correspondante chaque joint dépassant le plan extérieur de la bride correspondante (6, 17).Circuit breaker pole according to claim 2, characterized in that a said tiltable deformable joint (10, 21) comprises an external anchoring ring (26, 27) connected by an isthmus (28, 29) to a joint body ( 30, 31) comprising a heel (34, 35) and a lip (32, 33), the heel (34, 35) of each joint extending beyond the outside plane of the corresponding flange each joint extending beyond the outside plane of the corresponding flange ( 6, 17). Pôle de disjoncteur selon la revendication 1, caractérisé en ce qu'un dit joint élastomère annulaire (53, 54) comporte une première partie périphérique (55, 56) prise entre une bride (57, 59) et une contre-bride (58, 60), une seconde partie (61, 62) constituant un anneau creux déformable comportant des parois à parties plus souples (63, 64, 65, 66) et d'autres plus rigides (67, 68, 69, 70), et une troisième partie centrale (71, 72) constituant un simple disque de faible épaisseur assurant l'étanchéité coulissante le long de l'équipage mobile.Circuit breaker pole according to claim 1, characterized in that a said annular elastomer seal (53, 54) has a first peripheral part (55, 56) taken between a flange (57, 59) and a counter flange (58, 60), a second part (61, 62) constituting a deformable hollow ring comprising walls with more flexible parts (63, 64, 65, 66) and others more rigid (67, 68, 69, 70), and a third central part (71, 72) constituting a simple thin disc ensuring sliding sealing along the movable assembly. Pôle de disjoncteur selon la revendication 1, caractérisé en ce que lesdits moyens pour casser l'étanchéité le long desdits équipages mobiles comportent un tiroir coulissant (49) dont la longueur axiale est supérieure à la distance séparant les deux joints élastomères annulaires (46, 48) en position assemblée de la première et de la seconde enveloppe (2, 14).Circuit breaker pole according to Claim 1, characterized in that the said means for breaking the seal along the said moving parts comprise a sliding drawer (49) whose axial length is greater than the distance separating the two annular elastomer seals (46, 48 ) in the assembled position of the first and of the second envelope (2, 14).
    EP02291557A 2001-07-06 2002-06-21 Gas blast circuit breaker pole which can be assembled or disassembled without appreciable gas losses Withdrawn EP1274108A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0109006A FR2827074B1 (en) 2001-07-06 2001-07-06 PRESSURE GAS BREAKER POLE THAT CAN BE ASSEMBLED AND ASSEMBLED WITHOUT APPRECIABLE GAS LOSS
    FR0109006 2001-07-06

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    EP1274108A1 true EP1274108A1 (en) 2003-01-08

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    EP02291557A Withdrawn EP1274108A1 (en) 2001-07-06 2002-06-21 Gas blast circuit breaker pole which can be assembled or disassembled without appreciable gas losses

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    US (1) US6603088B2 (en)
    EP (1) EP1274108A1 (en)
    CN (1) CN1177347C (en)
    CA (1) CA2391667C (en)
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    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102009042569B3 (en) * 2009-09-23 2011-05-05 SCHLÖGL, Hilde plug-in coupling
    FR2981496B1 (en) * 2011-10-17 2013-12-27 Alstom Technology Ltd PRESSURE GAS CIRCUIT BREAKER ASSEMBLED AND DISASSEMBLED WITHOUT LOSS OF GAS
    CN111696817A (en) * 2020-03-25 2020-09-22 天津平高智能电气有限公司 High-voltage switch and shell thereof

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    US3940582A (en) * 1973-03-07 1976-02-24 Merlin Gerin Mechanically operated gas blast circuit interrupter having gastight enclosures
    FR2415358A1 (en) * 1978-01-18 1979-08-17 Sprecher & Schuh Ag COMPRESSED GAS CIRCUIT BREAKER
    CH622376A5 (en) * 1978-01-20 1981-03-31 Sprecher & Schuh Ag Mounting unit for a high-voltage switching device, having an encapsulated chamber element
    FR2568405A1 (en) * 1984-07-25 1986-01-31 Alsthom Atlantique PRESSURE GAS CIRCUIT BREAKER ASSEMBLED AND DISASSEMBLED WITHOUT LOSS OF GAS

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    Publication number Priority date Publication date Assignee Title
    US4024339A (en) * 1975-06-19 1977-05-17 Westinghouse Electric Corporation Supporting insulator assembly for gas-insulated equipment
    DE2826478C3 (en) * 1978-06-16 1981-07-02 Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner Detachable coupling device with two coupling parts for high-frequency lines filled with compressed gas
    FR2607621B1 (en) * 1986-12-01 1989-01-20 Alsthom HIGH-VOLTAGE CIRCUIT BREAKER WITH DIELECTRIC GAS WITH CLOSING RESISTANCE
    DE59203244D1 (en) * 1992-11-13 1995-09-14 Gec Alsthom T & D Ag Enclosed gas-insulated high-voltage system and assembly of such a system.

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3940582A (en) * 1973-03-07 1976-02-24 Merlin Gerin Mechanically operated gas blast circuit interrupter having gastight enclosures
    FR2415358A1 (en) * 1978-01-18 1979-08-17 Sprecher & Schuh Ag COMPRESSED GAS CIRCUIT BREAKER
    CH622376A5 (en) * 1978-01-20 1981-03-31 Sprecher & Schuh Ag Mounting unit for a high-voltage switching device, having an encapsulated chamber element
    FR2568405A1 (en) * 1984-07-25 1986-01-31 Alsthom Atlantique PRESSURE GAS CIRCUIT BREAKER ASSEMBLED AND DISASSEMBLED WITHOUT LOSS OF GAS

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    CN1177347C (en) 2004-11-24
    US20030015337A1 (en) 2003-01-23
    CA2391667A1 (en) 2003-01-06
    FR2827074B1 (en) 2003-09-05
    FR2827074A1 (en) 2003-01-10
    CN1396613A (en) 2003-02-12
    CA2391667C (en) 2010-05-25
    US6603088B2 (en) 2003-08-05

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