EP0689218A1 - Disjoncteur à gaz comprimé - Google Patents

Disjoncteur à gaz comprimé Download PDF

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Publication number
EP0689218A1
EP0689218A1 EP94109470A EP94109470A EP0689218A1 EP 0689218 A1 EP0689218 A1 EP 0689218A1 EP 94109470 A EP94109470 A EP 94109470A EP 94109470 A EP94109470 A EP 94109470A EP 0689218 A1 EP0689218 A1 EP 0689218A1
Authority
EP
European Patent Office
Prior art keywords
pump
compressed gas
contact piece
switch
switch according
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.)
Granted
Application number
EP94109470A
Other languages
German (de)
English (en)
Other versions
EP0689218B1 (fr
Inventor
Johannes Blatter
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 Switzerland GmbH
Original Assignee
GEC Alsthom T&D AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEC Alsthom T&D AG filed Critical GEC Alsthom T&D AG
Priority to EP94109470A priority Critical patent/EP0689218B1/fr
Priority to ES94109470T priority patent/ES2109552T3/es
Priority to DE59404639T priority patent/DE59404639D1/de
Priority to AT94109470T priority patent/ATE160466T1/de
Priority to US08/441,455 priority patent/US5561280A/en
Priority to JP15858895A priority patent/JP3605659B2/ja
Publication of EP0689218A1 publication Critical patent/EP0689218A1/fr
Application granted granted Critical
Publication of EP0689218B1 publication Critical patent/EP0689218B1/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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/904—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism characterised by the transmission between operating mechanism and piston or movable contact
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/905—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the compression volume being formed by a movable cylinder and a semi-mobile piston

Definitions

  • the present invention relates to a gas pressure switch, which has the features in the preamble of claim 1.
  • a gas pressure switch of this type is known from DE-A-39 42 489. Its pump cylinder, which is moved with a movable first contact piece, encloses a blowing chamber having a constant volume and a pump chamber, likewise enclosed by the pump cylinder and connected to the blowing chamber via a check valve. The pump volume of the pump chamber can be reduced by switching off a piston arranged in the pump cylinder in order to pump extinguishing gas through the check valve into the blowing chamber in order to build up blowing pressure. During a switch-off stroke, the pump piston is held in a position dimensioned by a toggle lever which is locked in the extended position such that the pump volume approaches zero when the minimum distance between the contact pieces required for arc extinguishing is reached.
  • a ventilation valve in the pump piston must be spring-loaded in such a way that it only opens after reaching the locking position in order to increase the pump volume to be filled with extinguishing gas. In this known pressure gas switch, the return of the pump piston to the locked position when switching on is not ensured. If the forces required for this increase for any reason, for example increased friction, the ventilation valve can open prematurely.
  • the pump piston can then be in any non-locked position when the compressed gas switch is switched on, which means that the next time the pump is switched off, no blowing pressure is built up when the contact pieces are separated. Since the ventilation valve must be spring-loaded, there is always a corresponding difference between the pressure in the pump volume and the pressure in the surrounding area, even when switched on. This requires additional drive energy.
  • DE-A-29 14 033 discloses a gas pressure switch, the pump cylinder of which only surrounds one pump chamber.
  • the pump piston becomes at the start of the switch-off stroke moved in the same direction as the pump cylinder.
  • the direction of movement of the reciprocating piston is then reversed so that the extinguishing gas is compressed quickly so that the arc can be blown vigorously, so that it moves in the opposite direction to the pump cylinder.
  • the pump piston moves in the opposite direction to the pump cylinder until the toggle lever is fully extended in order to quickly compress the extinguishing gas.
  • the buckling is increased again, as a result of which the pump piston moves in the same direction as the pump cylinder.
  • the pump piston is approximately in the same position both in the switched-on and in the switched-off position of the movable contact.
  • Another compressed gas switch the pump cylinder of which is moved with the movable contact piece, has both a blow chamber and a pump chamber connected to it via a check valve, is known from DE-A-24 38 635.
  • the blowing piston which together with the blowing cylinder, defines the blowing chamber by means of a parallelogram-like linkage and a contour of the movable contact piece, which acts as a backdrop, and after this contact piece a lifting section has passed through, unlocked so that it can move in the same direction as the pump cylinder.
  • a spring acts between the pump cylinder and the pump piston to increase the pump volume when it is switched on.
  • the movement of the pump piston is inevitable both during a switch-off and a switch-on stroke.
  • the controlled back and forth swinging of the knee joint around the extended position keeps the pump piston almost stationary, while the pump cylinder together with the movable first contact piece undergoes a considerable stroke section at the beginning of a switch-off stroke in order to generate blowing pressure.
  • This begins in the switch-on position and ends at least approximately in the contact disconnection position.
  • the pump piston is kept approximately still until shortly after the contact separation position has been reached. This, for example, up to a position of the first movable contact piece which corresponds to an extinguishing distance which is at least necessary for the arc quenching.
  • This extinguishing distance is with pressure gas switches, due to the high insulation capacity of the pressurized gas especially small for small flows.
  • the pump piston After passing through this stroke section, the pump piston is moved towards the off position at approximately the same or greater speed than the pump cylinder.
  • the blowing pressure generated in the blowing chamber by the reduction of the pump volume, the switching off of small currents at small extinguishing distances is ensured. Since the reduction in the pump volume has ended approximately when the contact pieces are separated, the large blowing pressure generated in the blowing chamber when switching off large currents as a result of the action of an arc cannot affect the drive of the compressed gas switch. This allows you to get by with low drive energy.
  • the pressure gas switch shown in FIGS. 1-4 has a movable first contact piece 10 which is located at the upper end of a shift rod 12 which can be displaced by means of a drive (not shown) in the direction of arrow O for switching off and vice versa in the direction of arrow I for switching on.
  • the first contact piece 10 interacts with a fixed, tubular second contact piece 14 which, in the switched-on position of the compressed gas switch shown in FIG. 1, engages through the ring-shaped first contact piece 10 and engages in the tubular switching rod 12.
  • U The overlap of the two coaxially arranged contact pieces 10, 14 in the direction of the switch axis 16 is denoted by U.
  • the shift rod 12 is surrounded by a pump cylinder 18 at a radial distance. This is attached to the switching rod 12 by means of an intermediate base 20 arranged at right angles to the switch axis 16.
  • a cylinder base 22 is formed on the end of the pump cylinder 18 facing the first contact piece 10 and is spaced apart from the intermediate base 20 and, together with this and the pump cylinder 18, encloses a blowing chamber 24 with a constant volume.
  • the blow nozzle 26 has a clear cross section in its constriction 28, which corresponds approximately to the outside diameter of the second contact piece 14.
  • an annular pump piston 30 is arranged in the pump cylinder 18, which is guided radially on the outside of the inner surface of the pump cylinder 18 and on the outside on the outside of the switching rod 12 in a sliding but gas-tight manner.
  • the intermediate floor 20 has the passages 34 connecting the pump chamber 32 to the blow chamber 24, which passages are arranged on the switching chamber side and are freely movable in the direction of the switch axis 16 over a limited path 36 are closed. Together with the cylinder base 20, this forms a check valve 38 with a passage direction from the pump chamber 32 into the blow chamber 24.
  • Ventilation passages 40 in the pumping piston 30 running in the direction of the switch axis 16 are covered on the pump chamber side by a ventilation valve disk 42, which by means of Springs 44 is kept biased in the closed position.
  • the ventilation valve 46 formed by the pump piston 30 and the ventilation valve disk 42 serves to fill the pump chamber 32 with extinguishing gas if it has a negative pressure with respect to the surrounding chamber 48. This is particularly the case when the compressed gas switch is switched on.
  • the parts of the compressed gas switch shown in FIGS. 1-4 are arranged in a generally known manner in a sealed switch housing which delimits the surrounding space 48 and is not shown.
  • the pump piston 30 is supported on a fixed support part 52 via four toggle levers 50 which move in parallel movement planes.
  • toggle levers 50 On opposite sides of the shift rod 12, two of the toggle levers 50 are offset but arranged opposite one another with respect to a plane running in the direction of the switch axis 16 and at right angles to the movement planes, so that the relevant toggle levers 50 can move past one another.
  • a bearing eye 54 is formed for each toggle lever 50, to which the free end of a tab-like first link 58 of the relevant toggle lever 50 is articulated by means of a pivot pin 56.
  • the knee joint 50 at the other end of the first link 58 is provided by a pivot pin 62 to which the second link 64 of the toggle lever 50, which is designed as a double link, is articulated.
  • the free end of this second link 64 is articulated by means of a further articulated pin 66 on a bearing eye 68 which is fastened or molded onto the support part 52 and thus immovable is.
  • the shift rod 12 is penetrated by an articulated shaft 70, to each of which one end of a double-link-type rocker 72 'forming a guide member 72 is articulated, which is articulated at the other end to the articulated pin 62 of the knee joint 60.
  • the effective length of the rocker 72 ' measured from the axis of the joint shaft 70 to the axis of the pivot pin 62, is shorter than the overlap U of the two contact pieces 10, 14 in the switched-on position of the compressed gas switch.
  • the effective length of the rocker 72 ' is preferably 60 to 80% of the length of the overlap U.
  • the effective lengths of the first and second links 58, 64 are greater than those of the rocker 72 '.
  • the effective length of the first link 58 is substantially greater, preferably more than twice as long, as the effective length of the rocker 72 ', the effective length of the second link 64 preferably being 1.2 to 1.6 times greater than that of the rocker 72'.
  • the pivot pins 56 arranged on the pump piston 30 are at a somewhat smaller distance from the switch axis 16 than those arranged on the support part Articulation pin 66.
  • the extended position of the toggle lever 50 indicated in FIG. 2 by the dash-dotted line 50 ' is thus at a small acute angle of a few, for example 4 °, to the switch axis 16.
  • this angle can also be somewhat larger, for example up to 10 °, or 0 °, so that the extended position 50 'runs parallel to the switch axis 16.
  • the toggle levers 50 are in the inward position of the compressed gas switch in an inward, slightly bent position, the rockers 72 'being approximately at right angles to one another.
  • FIG. 2 shows the gas pressure switch during a switch-off stroke shortly after the contact pieces 10, 14 are separated, the first links 58 of the toggle levers 50 occupying a position parallel to the switch axis 16.
  • the pump piston 30 is in approximately the same position as when the compressed gas switch is switched on, but the first contact piece 10 together with the moving switch parts is moved by a stroke section H in the direction of the arrow O has moved.
  • the volume of the pump chamber 32 was substantially reduced and reduced to approximately zero.
  • FIG. 1 where the two corresponding rockers 72 'are aligned arrow-like upwards, in FIG. 1 they assume an arrow-like downward position.
  • the position of the movable first contact piece 10 is indicated by 10 ', which it occupies when the toggle levers 50 are in the extended position 50'. In this position, the two contact pieces separate approximately 10.14 electrically from each other.
  • the movable first contact piece 10 is at the end of a switch-off stroke.
  • the path covered from the switch-on position to the switch-off position is indicated by the double arrow H '.
  • the lifting section H is smaller than half the path H '. It is preferably about 40% of the path H '.
  • the volume of the pump chamber 32 has changed insignificantly when the first contact piece 10 is moved from the position shown in FIG. 2 to the switch-off position shown in FIG. 3.
  • the toggle levers 50 have moved into a strong kink position which intersects with one another.
  • a hollow cylindrical current conductor part 76 is formed on the support part 52, the inside diameter of which is larger than the outside diameter of the pump cylinder 18, so that the latter can dip into the current conductor part 76 without contact in the course of a switch-off stroke.
  • a crown-like sliding contact piece 78 is arranged, which slides on the outer lateral surface of the pump cylinder 18 in order to ensure the electrical connection between the support part 52 connected to a first switch connection (not shown) and the pump cylinder 18.
  • the first contact piece 10 is electrically conductively connected to the pump cylinder via the switching rod 12 and the intermediate floor 20.
  • a crown-shaped one also acts, with the second one Contact piece 14 connected continuous current contact piece 80 together (Fig. 1).
  • This and the second contact piece 14 are connected in a known manner to a second switch connection.
  • the larger portion of the current flows through the continuous current contact piece 80 and a smaller portion of the current flows through the contact pieces 10 and 14 to the pump cylinder 18 and from there through the sliding contact piece 78 and the current conductor part 76 to the supporting part 52 the contact pieces 10 and 14 separate from one another.
  • the result of this is that the entire current commutates practically without arc into the current path having the two contact pieces 10 and 14.
  • FIG. 5 shows the movement of the pump piston 30 (line 30) as a function of the movement of the first contact piece 10 (line 10).
  • the switch-on position is scaled in the abscissa with 0 and the switch-off position of the first contact piece 10 with 100. The path is given in percent on the ordinate. It can be seen from this that the pump piston 30 remains approximately stationary while the first contact piece 10 passes through the lifting section H. In the example shown, this stroke section H is approximately 40% of the total switch-off stroke. In the area adjoining the lifting section H, the pump piston 30 then moves in the same direction and at approximately the same speed as the first contact piece 10 and the pump cylinder 18 until the switch-off position is reached.
  • the extinguishing gas present in the surrounding space 48, in the switching chamber 24 and in the pump space 32 is under the same pressure. If the first contact piece 10 now passes through the stroke section H in the course of a switch-off stroke, the extinguishing gas located in the pump chamber 32 is compressed and pumped through the check valve 38 into the blow chamber 24, as a result of which the blow pressure is increased there. If the two contact pieces 10, 14 separate from one another, an arc arises between them, which is blown by means of the quenching gas which flows out of the blowing chamber 24 through the blowing nozzle 26.
  • the quenching gas can now flow out essentially through the switching rod 12 and the second contact piece 14, as a result of which the arc is extended and extinguished in these tubular parts. If only a small current can be switched off, the arc can be extinguished even with a small distance between the contact pieces 10.14. With a small current, the energy generated by the arc can heat the gas in the blow chamber 24 only slightly, which can contribute to a possibly only small increase in pressure. When extinguishing small currents, the pressure increase in the blow chamber 24 generated by the reduction of the pump volume practically exclusively ensures an extinguishing gas flow which can extinguish the arc at short arcing times and can interrupt the current.
  • the first contact piece 14 After passing through the lifting section H, the first contact piece 14 is then brought into the switch-off position together with the parts moving with it, without further energy of the drive of the compressed gas switch having to be used to generate blowing pressure.
  • the increase in the kink position of the toggle lever 50 leads to the pump piston 30 moving in the switch-off direction 0 and at approximately the same speed as the first contact piece 10.
  • the by pumping in from the pump room 32 in the blow chamber 24 and the large overpressure in the blow chamber 24 generated by heating by the arc can produce such an intense extinguishing gas flow that large flows can be interrupted without problems, without requiring more drive energy than to switch off small flows.
  • the constriction 28 of the blow nozzle 26 has moved away from the stationary second contact piece 14, the arc can be blown very intensively through the nozzle constriction 28 until it is extinguished.
  • the pump piston 30 During a switch-on stroke, the pump piston 30 inevitably moves, like the first contact piece 10 and the pump cylinder 18 in the switch-on direction I, until the extended position 50 'of the toggle lever 50 is reached, which approximately coincides with the contact of the two contact pieces 10, 14.
  • the pump chamber 32 is again filled with extinguishing gas, for example SF6, through the ventilation valve 46.
  • the reduction in the volume of the pump chamber 32 to approximately zero leads to optimal use of drive energy, since then only a small amount of energy remains stored in the small, compressed quenching gas quantity remaining in the pump chamber 32.
  • the rocker does not necessarily have to act on the knee joint 60, it could also be articulated on the first or second link 58, 64 of the knee lever 50.

Landscapes

  • Circuit Breakers (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Actuator (AREA)
  • Control Of Transmission Device (AREA)
EP94109470A 1994-06-20 1994-06-20 Disjoncteur à gaz comprimé Expired - Lifetime EP0689218B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP94109470A EP0689218B1 (fr) 1994-06-20 1994-06-20 Disjoncteur à gaz comprimé
ES94109470T ES2109552T3 (es) 1994-06-20 1994-06-20 Interruptor de gas comprimido.
DE59404639T DE59404639D1 (de) 1994-06-20 1994-06-20 Druckgasschalter
AT94109470T ATE160466T1 (de) 1994-06-20 1994-06-20 Druckgasschalter
US08/441,455 US5561280A (en) 1994-06-20 1995-05-15 Compressed gas-blast circuit breaker
JP15858895A JP3605659B2 (ja) 1994-06-20 1995-06-01 圧縮ガス遮断器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94109470A EP0689218B1 (fr) 1994-06-20 1994-06-20 Disjoncteur à gaz comprimé

Publications (2)

Publication Number Publication Date
EP0689218A1 true EP0689218A1 (fr) 1995-12-27
EP0689218B1 EP0689218B1 (fr) 1997-11-19

Family

ID=8216031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94109470A Expired - Lifetime EP0689218B1 (fr) 1994-06-20 1994-06-20 Disjoncteur à gaz comprimé

Country Status (6)

Country Link
US (1) US5561280A (fr)
EP (1) EP0689218B1 (fr)
JP (1) JP3605659B2 (fr)
AT (1) ATE160466T1 (fr)
DE (1) DE59404639D1 (fr)
ES (1) ES2109552T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3001329A1 (fr) * 2013-01-24 2014-07-25 Alstom Technology Ltd Appareillage electrique a double mouvement de contacts comportant un dispositif de renvoi a deux leviers

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19536673A1 (de) * 1995-09-30 1997-04-03 Asea Brown Boveri Leistungsschalter
DE59802323D1 (de) * 1997-01-17 2002-01-17 Siemens Ag Hochspannungs-leistungsschalter mit einer axial verschiebbaren feldelektrode
FR2763171B1 (fr) * 1997-05-07 1999-07-09 Gec Alsthom T & D Sa Disjoncteur avec sectionneur
FR2763422B1 (fr) * 1997-05-15 1999-07-09 Gec Alsthom T & D Sa Disjoncteur de generateur
DE19736708C1 (de) * 1997-08-18 1999-05-20 Siemens Ag Elektrischer Hochspannungsschalter
FR2790592B1 (fr) * 1999-03-01 2001-04-06 Alstom Disjoncteur haute tension a double mouvement
US6310311B1 (en) * 1999-08-05 2001-10-30 Gary Hakes Integrated bushing component
ES2179773B1 (es) * 2001-03-30 2004-03-16 Grupo Ormazabal Sa Sistema de soplado para interruptores de corte en carga
JP2006164673A (ja) * 2004-12-06 2006-06-22 Hitachi Ltd パッファ形ガス遮断器の電流遮断方法およびそれに用いるパッファ形ガス遮断器
JP4855825B2 (ja) * 2006-04-27 2012-01-18 株式会社東芝 パッファ形ガス遮断器
FR2915310B1 (fr) * 2007-04-17 2009-07-10 Areva T & D Sa Disjoncteur avec chambre de coupure a double mouvement et a structure inversee.
EP2299464B1 (fr) * 2009-09-17 2016-08-31 ABB Schweiz AG Commutateur à auto-extinction doté d'une vanne de remplissage et d'un clapet de décharge
MX2013010202A (es) * 2011-03-17 2013-09-26 Abb Technology Ag Costacircuito de energia de alto voltaje, aislado de los gases.
KR101563587B1 (ko) * 2011-07-25 2015-10-27 엘에스산전 주식회사 진공 인터럽터의 동력전달 장치
EP3419039B1 (fr) * 2017-06-20 2020-08-26 General Electric Technology GmbH Disjoncteur haute tension
US11069494B2 (en) * 2017-11-17 2021-07-20 Mitsubishi Electric Corporation Switchgear
EP4105959B1 (fr) * 2021-06-16 2025-07-30 General Electric Technology GmbH Connecteur électrique comprenant un premier contact électrique et un corps mobile se déplaçant axialement à une vitesse différente

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FR2354625A1 (fr) * 1976-06-10 1978-01-06 Merlin Gerin Interrupteur a autosoufflage
DE2914033A1 (de) * 1978-09-06 1980-03-20 Sprecher & Schuh Ag Druckgasschalter
DE2934082A1 (de) * 1979-08-23 1981-03-26 Licentia Patent-Verwaltungs-Gmbh, 60596 Frankfurt Autopneumatischer druckgasschalter

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US4000387A (en) * 1974-05-13 1976-12-28 Westinghouse Electric Corporation Puffer-type gas circuit-interrupter
JPS5734614B2 (fr) * 1975-03-10 1982-07-23
DE3438635A1 (de) * 1984-09-26 1986-04-03 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
US4568806A (en) * 1984-09-27 1986-02-04 Siemens-Allis, Inc. Multiple arc region SF6 puffer circuit interrupter
DE3942489C2 (de) * 1989-12-22 1994-03-10 Licentia Gmbh Druckgasschalter
SE466979B (sv) * 1990-09-11 1992-05-04 Asea Brown Boveri Hoegspaenningsbrytare av sjaelvblaasande typ
ATE115765T1 (de) * 1991-04-12 1994-12-15 Gec Alsthom T & D Ag Druckgasschalter.
DE59303093D1 (de) * 1992-02-06 1996-08-08 Gec Alsthom T & D Ag Druckgasschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2354625A1 (fr) * 1976-06-10 1978-01-06 Merlin Gerin Interrupteur a autosoufflage
DE2914033A1 (de) * 1978-09-06 1980-03-20 Sprecher & Schuh Ag Druckgasschalter
FR2435795A1 (fr) * 1978-09-06 1980-04-04 Sprecher & Schuh Ag Disjoncteur a auto-soufflage
DE2934082A1 (de) * 1979-08-23 1981-03-26 Licentia Patent-Verwaltungs-Gmbh, 60596 Frankfurt Autopneumatischer druckgasschalter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3001329A1 (fr) * 2013-01-24 2014-07-25 Alstom Technology Ltd Appareillage electrique a double mouvement de contacts comportant un dispositif de renvoi a deux leviers
WO2014114637A1 (fr) * 2013-01-24 2014-07-31 Alstom Technology Ltd Appareillage electrique a double mouvement de contacts comportant un dispositif de renvoi a deux leviers
CN104981887A (zh) * 2013-01-24 2015-10-14 阿尔斯通技术有限公司 包括具有两杠杆的复位装置的具有双动触头的电设备
US9543081B2 (en) 2013-01-24 2017-01-10 Alstom Technology Ltd Electrical apparatus with dual movement of contacts comprising a return device with two levers
CN104981887B (zh) * 2013-01-24 2017-12-22 通用电气技术有限公司 包括具有两杠杆的复位装置的具有双动触头的电设备

Also Published As

Publication number Publication date
ES2109552T3 (es) 1998-01-16
US5561280A (en) 1996-10-01
EP0689218B1 (fr) 1997-11-19
ATE160466T1 (de) 1997-12-15
JP3605659B2 (ja) 2004-12-22
DE59404639D1 (de) 1998-01-02
JPH087725A (ja) 1996-01-12

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