EP1274108A1 - Ohne nennenswerten Gasverlust montierbarer und demontierbarer Druckgasschalterpol - Google Patents

Ohne nennenswerten Gasverlust montierbarer und demontierbarer Druckgasschalterpol 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
Authority
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Withdrawn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
Other languages
English (en)
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
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 Alstom SA filed Critical Alstom SA
Publication of EP1274108A1 publication Critical patent/EP1274108A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP02291557A 2001-07-06 2002-06-21 Ohne nennenswerten Gasverlust montierbarer und demontierbarer Druckgasschalterpol Withdrawn EP1274108A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0109006A FR2827074B1 (fr) 2001-07-06 2001-07-06 Pole de disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz appreciable
FR0109006 2001-07-06

Publications (1)

Publication Number Publication Date
EP1274108A1 true EP1274108A1 (de) 2003-01-08

Family

ID=8865211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02291557A Withdrawn EP1274108A1 (de) 2001-07-06 2002-06-21 Ohne nennenswerten Gasverlust montierbarer und demontierbarer Druckgasschalterpol

Country Status (5)

Country Link
US (1) US6603088B2 (de)
EP (1) EP1274108A1 (de)
CN (1) CN1177347C (de)
CA (1) CA2391667C (de)
FR (1) FR2827074B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009042569B3 (de) * 2009-09-23 2011-05-05 SCHLÖGL, Hilde Steckkupplung
FR2981496B1 (fr) * 2011-10-17 2013-12-27 Alstom Technology Ltd Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz
CN111696817A (zh) * 2020-03-25 2020-09-22 天津平高智能电气有限公司 一种高压开关及其壳体

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 (fr) * 1978-01-18 1979-08-17 Sprecher & Schuh Ag Disjoncteur a gaz comprime
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 (fr) * 1984-07-25 1986-01-31 Alsthom Atlantique Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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 (de) * 1978-06-16 1981-07-02 Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner Lösbare Kupplungsvorrichtung mit zwei Kupplungsteilen für druckgasgefüllte Hochfrequenzleitungen
FR2607621B1 (fr) * 1986-12-01 1989-01-20 Alsthom Disjoncteur a haute tension a gaz dielectrique a resistance de fermeture
ES2075576T3 (es) * 1992-11-13 1995-10-01 Gec Alsthom T & D Ag Instalacion de alta tension aislada con gas y blindada, y conjunto constructivo de una instalacion de este tipo.

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 (fr) * 1978-01-18 1979-08-17 Sprecher & Schuh Ag Disjoncteur a gaz comprime
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 (fr) * 1984-07-25 1986-01-31 Alsthom Atlantique Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz

Also Published As

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

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