EP0920705B2 - Commutateur en charge - Google Patents

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Publication number
EP0920705B2
EP0920705B2 EP97944787A EP97944787A EP0920705B2 EP 0920705 B2 EP0920705 B2 EP 0920705B2 EP 97944787 A EP97944787 A EP 97944787A EP 97944787 A EP97944787 A EP 97944787A EP 0920705 B2 EP0920705 B2 EP 0920705B2
Authority
EP
European Patent Office
Prior art keywords
vacuum interrupter
housing
switch according
sleeve
load
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 - Lifetime
Application number
EP97944787A
Other languages
German (de)
English (en)
Other versions
EP0920705A1 (fr
EP0920705B1 (fr
Inventor
Vitus Elektrotechnische Werke HÖGL
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.)
Elektrotechnische Werke Fritz Driescher & Sohne GmbH
Original Assignee
Elektrotechnische Werke Fritz Driescher & Sohne GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7803719&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0920705(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Elektrotechnische Werke Fritz Driescher & Sohne GmbH filed Critical Elektrotechnische Werke Fritz Driescher & Sohne GmbH
Priority to SI9730071T priority Critical patent/SI920705T2/xx
Publication of EP0920705A1 publication Critical patent/EP0920705A1/fr
Application granted granted Critical
Publication of EP0920705B1 publication Critical patent/EP0920705B1/fr
Publication of EP0920705B2 publication Critical patent/EP0920705B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements

Definitions

  • the invention relates to a load switch according to the preamble of claim 1.
  • Such load switches see for example DE-U-93 14 754- are e.g. as switch disconnector in railway operation known.
  • the vacuum interrupter is located here in the on position with that in an insulating housing housed switching mechanism electrical in the bypass to that for the full nominal device current designed main current path.
  • switching off first open the main contacts without power and commutate the current to the shunt horizontal series connection of vacuum interrupter and auxiliary switching point, which has an operating fork. Once the main contacts are far enough apart have removed the vacuum interrupter quickly operated via a tilt mechanism and the in Switch-off arc occurring inside the interrupter in the first current zero crossing without any external appearance safely deleted.
  • the vacuum interrupters are placed in a medium with higher dielectric strength.
  • insulating oil e.g. B. mineral or silicone oil
  • various esters or an insulating gas such as sulfur hexafluoride (SF 6 ) for use.
  • SF 6 sulfur hexafluoride
  • Document FR-2 698 481 A1 discloses one Load switch with a vacuum interrupter, where between the housing of the vacuum interrupter and an outer housing an electrically insulating Body made of silicone.
  • This silicone body is tubular and faces either the outside or on the inside, elastically deformable ribs on. It is made in such a way that it is intimate at the same time Contact with the outer surface of the interrupter housing and inner surface of the outer housing. Thereby should be a gap-free to avoid electrical Rollover can be achieved.
  • An insulating grease can be introduced while the ribs on the outside to create a seal be compressed at least to a small extent.
  • the German utility model G 93 14 754 UI discloses a vacuum interrupter with one against internal pressure durable encapsulation. Encapsulating this Vacuum interrupter consists of an inner one Layer of hard plastic foam and one outer burstproof coat. The preferably from a polyurethane foam inner Layer is evenly porous in order according to the teaching of this The best possible thermal insulation to enable, so in the event of a fault, no ignition sufficient temperature of the surrounding gas can be achieved.
  • the burstproof coat is as Formed winding body and consists of threads or Tapes impregnated with a hardened plastic are. It is close to the foam layer trained and dimensioned so that he bursting force can accommodate that within an error the vacuum interrupter occurs.
  • the casing of the tube also contains this state of the art a foam Plastic material, which due to aging in its properties can be affected. In particular can embrittlement or detachment of the Foam layer appear from the outer casing of the tube. There is also a disassembly of this encapsulated Vacuum interrupter only if the Wrapping possible.
  • the invention is therefore based on the object to create a load switch that is out of control Safe to use for a long time and also removable is.
  • the main advantage here is that due to the elastic properties of the cuff no gap remains on the periphery of the housing. An external rollover on the vacuum interrupter It is therefore not possible to have such an air gap.
  • the load switch according to the invention has numerous further advantages.
  • the load switch can therefore have many Years in continuous operation without the sleeve acting as a dielectric medium must be checked.
  • Another advantage is that the Assembly of the circuit breaker according to the invention essential simplified. This is how training with a pre-assembled cuff a pre-assembly of the Arrangement, which is why no effort for a final assembly or a filling e.g. necessary high up on the mast is. Because with no liquid or gaseous medium is handled, the effort for the Transport and installation of the invention Load switch essential.
  • the circuit breaker according to the invention is here easy to manufacture and allows disassembly if necessary. In addition, the space requirements and costs kept low for the vacuum interrupter become.
  • a complementary Pressure housing made of insulating material, which the outer circumference of the cuff in the elastic range biases.
  • this ensures that the cuff is firmly attached to the vacuum interrupter presses and further that also on the outer circumference of the No air gap is created in the cuff, causing an external rollover could enable.
  • the possible route for an external rollover this means a Dimension enlarged, in which this practically no longer is possible. Operational safety and reliability the load switch is thereby further increased. Further the vacuum interrupter in the pressure housing centered and fixed.
  • the dimensions of the cuff are chosen so that the cuff has a preload on the vacuum interrupter, is reliably prevented that an air gap between the sleeve and the housing of the vacuum interrupter results. So that can also be relative large dimensional tolerances of the vacuum interrupter be balanced. This increases reliability of the circuit breaker.
  • the cuff at least one in Axial direction of the pressure housing sealing bead has in the assembly joint of the pressure housing comes to rest, also becomes a seal of the pressure housing against external influences. This reliably prevents e.g. Dirt and especially water in the pressure housing can penetrate. Failure of the circuit breaker can so effectively avoided. Furthermore, the one-piece design of the sleeve with the sealing bead the assembly of the arrangement.
  • sealing bead also has a thickening on, which can be squeezed in the assembly joint of the pressure housing the reliability of this increases Sealing on the pressure housing continues.
  • the cuff at least one recess for receiving material of the cuff displaced under pressure having. It is achieved that the cuff clean on the peripheral surface of the vacuum interrupter creates without damaging the Cuff occurs due to the applied compressive forces. The reliability of the circuit breaker increases thereby further.
  • the at least one recess is advantageously as a circumferential ring groove in the inner periphery the cuff. This will make one even pressure distribution over the entire circumference of the vacuum interrupter.
  • the cuff is on at least one End face in the area of at least one end plate at least one pocket is provided in the assembled State an adjustment of the length of the vacuum interrupter possible without the material of the cuff is damaged since it is in at least one pocket can dodge. The reliability of the cuff and thus the operational safety of the circuit breaker thus increased.
  • the at least one pocket is also ring-shaped is formed, an even distribution of Pressure load on the front of the cuff reached.
  • the cuff according to the invention is preferred made of EPDM (ethylene-propylene terpolymer) or Made of silicone rubber, which has good elastic properties have and not compressible are. Such materials allow a secure seal the interface between the vacuum interrupter and the cuff or between the cuff and the pressure housing of the circuit breaker. On Outside rollover can be avoided safely.
  • EPDM ethylene-propylene terpolymer
  • silicone rubber which has good elastic properties have and not compressible are.
  • vacuum interrupter If parallel to the vacuum interrupter or parallel to the series connection vacuum interrupter / visible Isolation section when switched on the circuit breaker has a current path for high continuous current carrying capacity is switched on, the vacuum tube relieved when the load switch (switch disconnector) is in the closed state.
  • This has the Advantage that the vacuum interrupter only in the Switching operations with the present high voltages is applied. This can be a continuous current which are higher than the nominal current of the Switching chamber or series connection from a vacuum switching chamber and visible separation distance. The lifespan the load switch increases significantly.
  • a load switch 1 a pressure housing with two housing halves 11 and 12, which are made of insulating material and are essentially mirror images.
  • the Housing halves 11 and 12 include a vacuum interrupter 2 and a switching mechanism 3 arranged.
  • the arrangement and function of the vacuum interrupter 2 and the switching mechanism 3 corresponds the known versions, which is why on a detailed Explanation on this is dispensed with.
  • Essential is that the vacuum interrupter 2 has switching contacts inside has closed by the switching mechanism 3 or be opened. This is the switching mechanism 3 with an eccentric actuator 31 trained, which on a movable Contact 21 of the vacuum interrupter 2 acts.
  • the vacuum interrupter 2 has in addition the movable contact 21 a fixed contact 22 on the opposite of the movable contact 21 is arranged.
  • the vacuum interrupter 2 also has a housing 23 which is metallic End plates 24 and 25 is provided which is cylindrical Complete middle section of housing 26.
  • the middle part of the housing 26 is made of electrically insulating material manufactured. Inside the vacuum interrupter 2 there is a high vacuum, which when switched off for a safe arc break and when switched off Condition for safe voltage maintenance provides.
  • Vacuum interrupter 2 a sleeve 4 made of EPDM (Ethylene-propylene terpolmer) arranged.
  • the cuff 4 is designed such that it has the edges of the two end plates 24 and 25 of the vacuum interrupter 2 embraces. Furthermore, the dimensions the cuff 4 chosen so that tolerance deviations the vacuum interrupter 2 balanced can be and the cuff 4 still under Preload on the peripheral surface of the vacuum interrupter 2 is present. As a result, there is no continuous Air gap between the end plates 24 and 25 before.
  • the cuff 4 is in turn from the housing halves 11 and 12 of the switch 1 and biased. Due to the preload too between the sleeve 4 and the assembled housing halves 11 and 12 no air gap in front of which an external rollover the tension between the end plates 24 and 25 would allow the vacuum interrupter 2.
  • the cuff has 4 ring-shaped screens 41 on the in corresponding recesses in the housing halves 11 and 12 are included.
  • the screens 41 serve in a known manner to extend the route (Creepage distance) along the surface.
  • the cuff 4 also has four recesses 42 arranged on the inner peripheral surface are and have an annular shape. At the Closing the housing halves 11 and 12 will apply pressure the cuff 4 exercised and since this is made of an elastomeric material is made, which is elastic but in essential is not compressible, allow the Recesses 42 a dodge of the material of the Cuff 4 in the spaces thus formed. On this will damage the cuff 4 prevents and a good seal of the interface between the sleeve 4 and the vacuum interrupter 2 reached.
  • annular pocket 43 is also formed. Since vacuum interrupters 2 have relatively large length tolerances may be a Length adjustment or positioning of the vacuum interrupter 2 in load switch 1 necessary. To the necessary deformation of the cuff 4 in this The frontal area serves to enable the annular Pocket 43 as a chamber for volume compensation of the displaced material.
  • the cuff has 4 further a sealing bead 44 with a thickening 45 on. These are on the two assembly joints the housing halves 11 and 12 of the circuit breaker 1 for sealing against external influences arranged.
  • the thickening 45 is accordingly trained recesses or grooves on the Joint surfaces of the housing halves 11 and 12 added and when closing the housing halves 11 and 12 crimped.
  • the sealing bead 44 with the thickening 45 has a length which is essentially the total length corresponds to the cuff 4. But he can also in the entire assembly joint area of the housing halves 11 and 12 in one piece with the cuff 4 as Round cord designed to seal the pressure housing his.
  • the load switch used as switch disconnector and in series arranged with a visible separation distance. It is a main current path designed for the continuous operating current parallel to the vacuum interrupter and one connected with this auxiliary switching point in series, whereby the vacuum tube when switched on Switch disconnector is relieved.
  • the main contact opens, causing the voltage completely passed through the vacuum interrupter 2 becomes. Then the contacts 21 and 22 of the Vacuum interrupter 2 disconnected and the connection is completely interrupted without arcing can train in the load switch 1.
  • the dimensions and shape of the cuff 4 can, depending on the construction and type of the vacuum interrupter 2 vary. In any case, it is essential that the cuff 4 so on the vacuum interrupter 2 is present that there is no air gap between them is possible.
  • the cuff 4 does not have to be 41 be trained, but can also be designed differently or have a smooth outer peripheral surface, if the safety of the load switch 1 e.g. by virtue of of low existing voltages.
  • the recesses 42 in the cuff 4 have in the example shown semicircular cross sections and are in four places around the vacuum interrupter 2 trained. Both the shape as also the number of annular recesses 42 can deviate from this. It is also possible that Cutouts 42 instead of the shown embodiment with an annular shape to provide the inner peripheral surface of the sleeve 4.
  • the pocket 43 in the cuff 4 can also be provided on both end faces. Furthermore can also change the shape and number of pocket 43 in vary in a manner similar to the recesses 42.
  • the cuff 4 can in any way Connection with vacuum interrupters 2 used be what other switching elements than switch disconnectors includes. It is also used in circuit breakers and the like conceivable.
  • the pressure housing can also consist of more than two housing parts exist, the number of Sealing beads 44 adapted to the number of assembly joints is.
  • a continuous current or main current contact system be provided, which allows the load switch 1 using a specific vacuum interrupter 2 for different nominal or continuous currents interpreted.
  • the invention thus creates a load switch 1 for voltages in the kV range with a vacuum interrupter 2, which by a made of elastomer material trained with high dielectric strength Cuff 4 is gripped without gaps.
  • the cuff 4 is in turn through the housing halves 11 and 12 of the load switch 1 clamped. That way a high tension outside flashover between the end plates 24 and 25 of the vacuum interrupter 2 effectively prevented during the switching process without liquid or gaseous media are necessary for this.
  • This is in contrast to conventional circuit breakers no high control effort required and the Load switch is harmless to the environment.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Keying Circuit Devices (AREA)
  • Power Steering Mechanism (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Thermally Actuated Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (12)

  1. Interrupteur à coupure en charge (1) pour des tensions supérieures à 1 kV, comportant une chambre de commutation sous vide (2), dont les contacts (21,22) sont fermés ou ouverts au moyen d'un système mécanique de commutation (3), la chambre de commutation sous vide (2) comportant un boítier (23), qui entoure les contacts de commutation placés sous vide et est équipé de plaques frontales métalliques (24,25) et d'une partie centrale de forme cylindrique (26) formée d'un matériau électriquement isolant et entourée par une couche formée d'un matériau diélectrique, qui s'engage derrière les bords des deux plaques frontales (24,25), et dans lequel sur la face extérieure de la couche diélectrique est prévue une enveloppe de forme complémentaire réalisée en un matériau isolant et qui place sous pression la périphérie extérieure de la couche diélectrique,
    caractérisé en ce que la couche diélectrique est formée par un manchon préfabriqué (4), qui est réalisé en un matériau élastomère possédant une haute rigidité diélectrique et qui est comprimé sans interstice contre le boítier (23) par un boítier de compression (11,12) utilisé comme enveloppe, dans lequel le boítier de compression est constitué d'au moins deux parties de boítier, qui forment le boítier de compression fermé en position de montage.
  2. Interrupteur à coupure en charge, caractérisé en ce que les dimensions du manchon (4) sont choisies de telle sorte que le manchon (4) s'applique avec une précontrainte contre la périphérie de la chambre de commutation sous vide (3).
  3. Interrupteur à coupure en charge selon la revendication 2, caractérisé en ce que le manchon (15) comporte au moins un rebord d'étanchéité (44), qui s'étend dans la direction axiale du boítier de compression (11,12) et vient s'appliquer dans le joint de montage du boítier de compression (11,12).
  4. Interrupteur à coupure en charge selon la revendication 3, caractérisé en ce que le rebord d'étanchéité (44) possède un épaississement (45) qui peut être comprimé dans le joint de montage du boítier de compression (11,12).
  5. Interrupteur à coupure en charge selon l'une des revendications 1 à 4, caractérisé en ce que des blindages circonférentiels (41), qui font saillie essentiellement parallèlement aux plaques frontales (24,25) de la chambre de commutation sous vide (2), sont disposés sur la périphérie extérieure du manchon (4).
  6. Interrupteur à coupure en charge selon l'une des revendications 1 à 5, caractérisé en ce que le manchon (4) comporte au moins un évidement (42) servant à loger un matériau refoulé lors de la contrainte de compression appliquée par le boítier de compression (11,12).
  7. Interrupteur à coupure en charge selon la revendication 6, caractérisé en ce qu'au moins un évidement (42) est agencé sous la forme d'une gorge annulaire périphérique.
  8. Interrupteur à coupure en charge selon l'une des revendications 1 à 7, caractérisé en ce qu'au moins un logement (43) est formé dans le manchon (4) au niveau de la plaque frontale (25) et/ou de la plaque frontale (24).
  9. Interrupteur à coupure en charge selon la revendication 8, caractérisé en ce qu'au moins un logement (43) est réalisé sous la forme d'une gorge de forme annulaire.
  10. Interrupteur à coupure en charge selon l'une des revendications 1 à 9, caractérisé en ce que le manchon (4) est réalisé en caoutchouc silicone ou en EPDM (terpolymère éthylène-propylène).
  11. Interrupteur à coupure en charge selon l'une des revendications 1 à 10, caractérisé en ce qu'il est agencé sous la forme d'un sectionneur à coupure en charge, dans lequel une section de coupure visible est disposée en série avec la chambre de commutation sous vide.
  12. Interrupteur à coupure en charge selon l'une des revendications 1 à 11, caractérisé en ce qu'une voie de circulation du courant pour une capacité de charge élevée à courant continu est branchée en parallèle avec la chambre de commutation sous vide ou en parallèle avec le circuit série chambre de commutation sous vide / section de coupure visible, lorsque l'interrupteur à coupure en charge est dans l'état fermé.
EP97944787A 1996-08-26 1997-08-25 Commutateur en charge Expired - Lifetime EP0920705B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730071T SI920705T2 (en) 1996-08-26 1997-08-25 Load interrupter switch

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19634451 1996-08-26
DE19634451A DE19634451C1 (de) 1996-08-26 1996-08-26 Lastschalter
PCT/EP1997/004617 WO1998009310A1 (fr) 1996-08-26 1997-08-25 Commutateur en charge

Publications (3)

Publication Number Publication Date
EP0920705A1 EP0920705A1 (fr) 1999-06-09
EP0920705B1 EP0920705B1 (fr) 2000-04-19
EP0920705B2 true EP0920705B2 (fr) 2003-05-14

Family

ID=7803719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97944787A Expired - Lifetime EP0920705B2 (fr) 1996-08-26 1997-08-25 Commutateur en charge

Country Status (18)

Country Link
EP (1) EP0920705B2 (fr)
AT (1) ATE191990T1 (fr)
AU (1) AU4618397A (fr)
CA (1) CA2263881C (fr)
CZ (1) CZ288889B6 (fr)
DE (2) DE19634451C1 (fr)
DK (1) DK0920705T4 (fr)
ES (1) ES2144880T5 (fr)
GR (1) GR3033287T3 (fr)
HK (1) HK1017768A1 (fr)
HU (1) HU222705B1 (fr)
PL (1) PL187251B1 (fr)
PT (1) PT920705E (fr)
RS (1) RS49698B (fr)
RU (1) RU2188474C2 (fr)
SK (1) SK282723B6 (fr)
TR (1) TR199900436T2 (fr)
WO (1) WO1998009310A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6130394A (en) * 1996-08-26 2000-10-10 Elektrotechnische Weke Fritz Driescher & Sohne GmbH Hermetically sealed vacuum load interrupter switch with flashover features
DE19712182A1 (de) * 1997-03-22 1998-09-24 Abb Patent Gmbh Vakuumkammer
DE19906972B4 (de) * 1999-02-19 2008-04-30 Abb Ag Schalterpolteil mit Vakuumschaltkammer
DE19918077C1 (de) * 1999-04-21 2000-11-09 Driescher Eltech Werk Lastschalter
FR2794280B1 (fr) * 1999-05-28 2001-07-20 Alstom Disjoncteur a moyenne tension a coupure dans le vide comportant un boitier de protection par pole
DE102004006476B4 (de) * 2004-02-04 2006-02-09 Siemens Ag Lasttrennschalter
FR3073663A1 (fr) * 2017-11-16 2019-05-17 Schneider Electric Industries Sas Pole de coupure pour appareil electrique de coupure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322372A1 (de) † 1973-04-30 1974-11-07 Siemens Ag Mehrpoliges vakuumschaltgeraet

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1191664A (en) * 1966-06-07 1970-05-13 Reyrolle & Company Ltd Improvements relating to Vacuum Switches
US3594525A (en) * 1969-04-21 1971-07-20 Gen Electric Common parallel operating means for series-connected, laterally offset vacuum switches
US3671696A (en) * 1970-11-16 1972-06-20 Allis Chalmers Mfg Co Vacuum interrupter shunted with mechanical switch
US4088859A (en) * 1977-02-23 1978-05-09 Westinghouse Electric Corp. Normal open low voltage vacuum shorting switch
US4393286A (en) * 1978-08-24 1983-07-12 Tokyo Shibaura Denki Kabushiki Kaisha Vacuum circuit breakers
JPS5812230A (ja) * 1981-07-16 1983-01-24 富士電機株式会社 断路器付真空負荷開閉器
FR2698481B1 (fr) * 1992-11-26 1995-02-17 Soule Sa Système de coupure de ligne électrique comportant un interrupteur sous atmosphère contrôlée.
DE9314754U1 (de) * 1993-09-27 1994-03-03 Siemens Ag Vakuumschaltröhre mit einer gegen Innendruck beständigen Kapselung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322372A1 (de) † 1973-04-30 1974-11-07 Siemens Ag Mehrpoliges vakuumschaltgeraet

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Epoxahars in mideenspanningschalsystemen, H. Bijsterbosch, Kunststof en Rubber, Februard 1995, S. 12-15 †
Field calculations on epoxy resin insulated vacuum interrupters, M.B.J Leusenkamp et al. Preoceedings XVIIth International Symposium on Discharges and Electrical Insulation in Vacuum, Berkeley, USA, 21-26 July 1996, S.1065-1069 †
Holec Broschüre 22.3.3 "High voltage switch gear type SVS-12kV-24kV 1990 †

Also Published As

Publication number Publication date
HU222705B1 (hu) 2003-09-29
RS49698B (sr) 2007-12-31
SK23899A3 (en) 2000-03-13
CZ288889B6 (cs) 2001-09-12
DE59701481D1 (de) 2000-05-25
RU2188474C2 (ru) 2002-08-27
TR199900436T2 (xx) 1999-05-21
ATE191990T1 (de) 2000-05-15
CA2263881C (fr) 2006-11-28
ES2144880T3 (es) 2000-06-16
EP0920705A1 (fr) 1999-06-09
HK1017768A1 (en) 1999-11-26
SK282723B6 (sk) 2002-11-06
DK0920705T3 (da) 2000-09-25
GR3033287T3 (en) 2000-09-29
PL331997A1 (en) 1999-08-16
HUP9903117A3 (en) 2002-03-28
EP0920705B1 (fr) 2000-04-19
PL187251B1 (pl) 2004-06-30
ES2144880T5 (es) 2004-02-16
DK0920705T4 (da) 2003-06-30
PT920705E (pt) 2000-10-31
CZ58599A3 (cs) 1999-07-14
WO1998009310A1 (fr) 1998-03-05
DE19634451C1 (de) 1998-01-29
AU4618397A (en) 1998-03-19
HUP9903117A2 (hu) 2000-02-28
YU10299A (en) 1999-11-22
CA2263881A1 (fr) 1998-03-05

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