EP0378950B1 - Pol für selbstblasenden elektrischen Schalter - Google Patents

Pol für selbstblasenden elektrischen Schalter Download PDF

Info

Publication number
EP0378950B1
EP0378950B1 EP89420486A EP89420486A EP0378950B1 EP 0378950 B1 EP0378950 B1 EP 0378950B1 EP 89420486 A EP89420486 A EP 89420486A EP 89420486 A EP89420486 A EP 89420486A EP 0378950 B1 EP0378950 B1 EP 0378950B1
Authority
EP
European Patent Office
Prior art keywords
casing
gas
pole
pole according
movable contact
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
EP89420486A
Other languages
English (en)
French (fr)
Other versions
EP0378950A1 (de
Inventor
Denis Raphard
Maurice Perrin
Laurent Besnard
Jean-Yves Blanc
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin 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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of EP0378950A1 publication Critical patent/EP0378950A1/de
Application granted granted Critical
Publication of EP0378950B1 publication Critical patent/EP0378950B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01H33/91—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 arc-extinguishing fluid being air or gas

Definitions

  • the invention relates to a pole of a medium voltage circuit breaker with self-blowing by piston of a gas with high dielectric strength, comprising an insulating sealing envelope of generally cylindrical shape filled with said gas, in which a fixed contact are arranged coaxially and a movable contact, the latter being slidably mounted and carrying a piston, confining with a transverse partition of subdivision of said envelope a pistonable compression volume of the arc blowing gas, drawn during the separation of said contacts.
  • a self-blowing electric circuit breaker constituted by the assembly of several poles of the kind mentioned, allows the cutting of medium voltage currents by simple actuation of a control shaft.
  • Each pole has an insulating molded enclosure in the form of a pocket closed on the side of the open bottom with a metallic or insulating cover.
  • the structure and arrangement of these known poles are complicated and require a long assembly and manufacturing time. In particular, guiding the movable contact rod by a series of V-grooved rollers is complicated and expensive.
  • the present invention aims to allow the realization of a simplified structure pole making use of injected parts, connected by simple snap.
  • the pole according to the invention is characterized in that said transverse partition is constituted by a piece of injected insulating plastic material introduced with low clearance, and kept fixed in said envelope, said piece having a central orifice for passage of said movable contact, which is guided by said part and gas passage orifices equipped with one-way valves, to allow free entry of gas into the pistonable volume through said partition, and to prevent gas from escaping from said volume in the opposite direction to through said passage openings.
  • the injected part constituting the transverse partition which subdivides the envelope into two chambers, includes orifices for the passage of gases open during the phase of closing the pole, so as not to slow down the moving assembly in its closing movement. These orifices are closed by a valve in the form of an annular disc during the pole opening phase corresponding to compression of the blowing gas in the pistonable volume.
  • the annular disc forming the valve is interposed with clearance, between the injected part forming the partition and a retaining ring clipped onto this injected part.
  • the seal between the transverse bulkhead and the pole shell is ensured by a seal, in particular an O-ring placed on the circumference of the injected part and maintained by the retaining ring also cooperating with the valve disc.
  • the injected part forming the transverse partition can be introduced into the pole through the open bottom, its immobilization in rotation being ensured by a lug sliding in a longitudinal groove formed in the internal wall of the envelope.
  • the positioning of the injected part in the longitudinal direction is ensured on the one hand by a step formed on the internal wall of the envelope, and on the other hand by a current supply insert embedded transversely in the envelope and carrying a connection screw of a braid, which projects towards the inside of the envelope to serve as a retaining stop for the injected part.
  • the blowing piston integral with the movable contact is also made of injected plastic and it carries a blowing nozzle snapped onto the piston.
  • a scraper ring in the form of a split ring is inserted into a circumferential groove of the piston to ensure sealing between the latter and the envelope of the pole.
  • the rigid part forming the intermediate partition guides the movable contact rod, and the current supply to this contact rod is advantageously produced by a braid.
  • this braid extends in a plane transverse to the pole while being, on the one hand connected to an insert forming a current feedthrough, embedded in the insulating envelope, and on the other hand to the movable contact rod.
  • the connection of the braid to the movable contact rod is made at a point diametrically opposite the point of attachment of the braid to the current feedthrough.
  • the braid preferably constitutes two current supply loops, symmetrically surrounding the movable contact so as to limit the section of the braid.
  • the braid is preferably subdivided into different strands superimposed in the axial direction of the pole, in order to limit its rigidity in this direction.
  • This arrangement of the braid in a transverse plane allows a reduction in height of the pole due to the limitation of the movement of this braid.
  • the fixing screw of the braid to the lateral crossing simultaneously ensures the longitudinal positioning of the injected part forming the transverse partition.
  • the screw for fixing the braid to the movable contact rod can at the same time ensure the articulation of the rod for controlling the movement of the movable contact.
  • an envelope 10 of insulating material in the form of a pocket is closed off with a sealed material on the side of its open bottom, by a plate 12.
  • the enclosure confined by the envelope 10 is filled with a gas at high dielectric strength, in particular sulfur hexafluoride and two metal inserts are embedded in the wall of the envelope 10 of generally cylindrical shape, one 14 crossing the bottom of the pocket constituting the envelope 10 and extending into the direction axial of the casing 10 by a fixed tubular contact 16.
  • the other insert 18 extends transversely to the casing 10, being offset from the side of the cover 12.
  • the two inserts 14, 18 constitute feedthroughs of current forming the input and the output of the pole housed in the envelope 10.
  • the envelope 10 is crossed by a control shaft 20 on which is cranked a crank 22 controlling a link 24 articulated on a movable contact rod 26.
  • the movable contact rod 26 carries at its end oriented on the side of the fixed contact 16, tulip-shaped main contacts 28, as well as a semifixed arcing contact 30 biased by a spring 32 in the projecting position of the contact fingers of the tulip 28.
  • the movable contact rod 26 passes with little play a transverse partition 34 dividing the envelope 10 into two chambers, one for cutting the arc drawn during the separation of the contacts 16,30, and the another of the cut-off gas expansion.
  • the transverse partition 34 confines with a piston 36 secured to the end of the movable contact rod 26, a pistonable volume ensuring during a movement of opening of the pole a compression of the gas, and a flow of this gas of the volume pistonable through a blowing nozzle 38 fixed to the piston 36.
  • the opening and closing of the pole are controlled by a rotation of the control shaft 20 which generates a sliding of the movable assembly constituted by the movable contact rod 26 and the piston 36.
  • Such a pole is well known to specialists and it suffices to recall that it requires no external source of compressed arc blowing gas, and allows operation for many years without maintenance, in particular without dismantling. of the pole.
  • the blowing piston 36 comprises a piece 40 of injected plastic material of generally circular shape, having on its upper face a cylindrical housing in which the base 42 of the nozzle 38.
  • the nozzle 38 is assembled to the injected part 40 by simple snap-fastening and it is held by retaining hooks 44 coming from injection with the part 40.
  • the part 40 has orifices 46 putting in communication the inside of the nozzle 38 and the opposite side of the piston 36.
  • the seal between the piston 36 and the casing 10 is ensured by a scraper seal 48 in the form of a split ring coming to be housed in a circumferential groove 50 of the part injected 40.
  • the mounting of the piston 36 is particularly simple, since it suffices to set up the scraper seal 48 and to snap on the nozzle 38. This ease of assembly is due to the possibility of producing by injection pieces of suitable shapes .
  • the transverse partition 34 ensuring the subdivision of the casing 10 into two chambers.
  • the transverse partition 34 is also constituted by a piece of injected plastic material 52 of generally cylindrical shape.
  • the injected part 52 has a central part 54 forming a passage and guide orifice for the movable contact rod 26 which passes through it.
  • the orifice 54 extends over a certain axial height to ensure correct guiding of the contact rod 26.
  • the injected part 52 is extended by a cylindrical skirt 56 closely fitting the envelope 10 to ensure perfect positioning of the transverse partition 34 in the casing 10.
  • This injected part 52 is obtained by the penetration of a lug 58 projecting from the side, in a conjugate longitudinal groove (not shown) formed in the wall internal of the envelope 10.
  • the upper part of the injected part 52 offers an internal circular housing 60 in which a disc-shaped valve 62 fits, capable of covering orifices 64 through which the transverse partition 34 passes.
  • a ring retaining ring 66 can be fitted or possibly clipped into the housing 60 to hold the valve disc 62.
  • the retaining ring 66 has an external flange 68 which cooperates with a conjugate rim 70 of the injected part 52 to delimit a circumferential groove for housing an O-ring seal 72.
  • the orifices 64 extend in arcs of a circle to provide a significant section for passage of gas while being susceptible to '' be closed by the valve disc 62 of annular shape during the gas compression phase in the pistonable volume.
  • the assembly and installation of the transverse partition 34 are particularly simple, since it suffices to have the seal 72 and the valve disc 62 before fitting the retaining ring 66.
  • This assembly is then threaded into the 'envelope 10 taking care to introduce the lug 58 in the conjugate groove.
  • the upper edge of the retaining ring 66 comes into abutment with a step 74 formed in the internal wall of the envelope 10.
  • This step 74 limits the axial movement of the transverse partition 34 in the direction of the fixed contact 16.
  • the movement in the opposite direction is limited by a plate 79 itself secured to the braid 78 and held in place by a screw 76 screwed into the transverse insert 18.
  • step 74 and the plate 79 immobilize the transverse partition 34 in the axial direction, keeping the retaining ring 66 engaged in its housing 60.
  • the immobilization in rotation of this transverse partition 34 is ensured by the lug 58, and the height axial of the assembly ensures perfect positioning of the injected part 52 which guides the sliding contact movable rod 26.
  • the electrical connection between the movable contact rod 26 and the transverse insert 18 is made by a flexible braid 78 extending in the form of two half-loops in a plane transverse to the envelope 10 (FIG. 7).
  • the two half-loops of the braid 78 surround on either side, the movable contact rod 26 while being by one of their ends secured to the metal insert 18 by a screw which is advantageously the positioning screw 76 axial of the transverse partition 34.
  • the opposite end of the half-loops of the braid 78 is connected to the movable contact rod 26 by a screw 80 diametrically opposite the screw 76.
  • the length of the braid 78 is sufficient to extend close to the casing 10 over a length sufficient for an axial clearance of the contact rod 26.
  • the braid 78 is made up of several strands superimposed in the axial direction of the pole to ensure a certain flexibility in this axial direction.
  • the braid 78 In the intermediate position of the movable contact rod 26, the braid 78 extends substantially in a diametrical plane containing the insert 18, the upward and downward movement being effected during a sliding of the rod. movable contact 26 on either side of this diametral plane.
  • the braid 78 In the extreme position, the braid 78 extends in a slightly inclined plane, the length of this braid being sufficient to compensate for the increase in the distance between the fixing screws 76 and 80.
  • This transverse arrangement of the braid 78 limits its height the space necessary for housing the braid 78, and allows a shortening of the circuit breaker pole.
  • the connection screw 80 of the braid 78 to the contact rod 26 advantageously constitutes the axis of fixing and articulation of the rod 24. A second screw can be superimposed when using a braid of relatively large height .
  • the attachment of the piston 36 to the movable contact rod 26 can be carried out in different ways, a particularly simple manner consisting in providing on the end of the rod 26 a flange on which the injected part 40 fits.
  • the holding in position nested can be easily achieved by the establishment of the main tulip contact fingers 28 which project laterally from the movable contact rod 26 to overlap on the injected part 40. Any other method of attachment is of course usable.
  • the envelope 10 is preferably of a well known per se in an epoxy resin.
  • Figures 8 and 9 illustrate an alternative embodiment of the snap fastening of the nozzle 38 on the injected part 40.
  • the nozzle 38 carries teeth 82 which snap onto legs 84 in the form of a stirrup carried by the part injected 40.
  • FIGS. 10 to 12 show a fixing by means of a ring 88.
  • the nozzle 38 carries a circumferential collar 94 in the vicinity of its base 42 and the injected part 40 has nozzles 90 fixing on which comes to fit and fix the ring 88, which is supported on the collar 94.
  • the ring 88 comprises opposite each spout 90 an orifice 98 in bayonet whose enlarged part 96 allows the fitting of the ring on the spout 90 and whose narrow part 98 allows pivoting the passage over the spout 90 and the fixing of the ring 88 and of the nozzle 38 on the injected part 40.

Landscapes

  • Circuit Breakers (AREA)
  • Breakers (AREA)

Claims (10)

  1. Pol eines durch Kolbenverdrängung eines Gases mit hoher dielektrischer Festigkeit autopneumatisch arbeitenden Mittelspaunungs-Leistungsschalters in einem mit dem genannten Gas gefüllten verschlossenen Isolierstoffgehäuse (10) Von annähernd zylindrischer Form, in dem ein feststehender Kontakt (16) und ein beweglicher Kontakt (26, 28) koaxial angeordnet sind, wobei der bewegliche Kontakt gleitend gelagert ist und einen Kolben (36) trägt, der mit einer quer angeordneten Trennwand (34) zur Unterteilung des genannten Gehäuses (10) einen Verdichtungsraum zur Kompression des Gases für die Beblasung des bei der Trennung der genannten Kontakte entstehenden Lichtbogens abschließt, dadurch gekennzeichnet, daß die genannte quer angeordnete Trennwand (34) aus einem Isolierstoff-Spritzgußteil (52) besteht, das mit geringem Spiel in das Gehäuse (10) eingesetzt und dort fest positioniert ist, wobei das genannte Teil (52) eine Mittelöffnung (54) zur Durchführung des genannten beweglichen Kontakts (26), der von dem genannten Teil (52) geführt wird, sowie mehrere, mit einseitig durchlässigen Verschlußklappen (62) versehene Gasdurchgangsöffnungen (64) aufweist, um einen ungehinderten Gaseintritt durch die genannte Trennwand (34) in den Verdichtungsraum zu ermöglichen und ein Entweichen des Gases aus dem genannten Raum in entgegengesetzter Richtung durch die genannten Durchgangsöffnungen (64) zu verhindern.
  2. Pol nach Anspruch 1, dadurch gekennzeichnet, daß die genannten Durchgangsöffnungen (64) parallel zur Umfangslinie der genannten Trennwand (34) angeordnet sind und durch die Wirkung des in der Verdichtungskammer herrschenden Drucks von einer die genannten Verschlußklappen bildenden Ringscheibe (62) überlappt bzw. abgedeckt werden können.
  3. Pol nach Anspruch 2, dadurch gekennzeichnet, daß die genannte Ringscheibe (62) unter Einhaltung eines Spiels zwischen die genannte Trennwand (34) und einen auf das genannte Spritzgußteil (52) aufgesteckten oder aufgeschnappten Abschlußring (66) eingefügt ist.
  4. Pol nach Anspruch 3, dadurch gekennzeichnet, daß er zwischen der Trennwand (34) und dem Gehäuse (10) eine Dichtung (72) aufweist, die auf dem Umfang des genannten Spritzgußteils (52) montiert und durch den genannten Abschlußring (66) fixiert ist.
  5. Pol nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das genannte Spritzgußteil (52) einen seitlich hervorstehenden Zapfen (58) aufweist, der in eine gegenüberliegende, in die Innenwand des Gehäuses (10) eingearbeitete Längsnut eingreift, um das genannte Spritzgußteil in Drehrichtung zu blockieren.
  6. Pol nach irgendeinem der vorhergehenden Ansprüche mit einem eine seitliche Durchführung (18) zur Stromzufuhr bildenden Einsatz im genannten Gehäuse (10), dadurch gekennzeichnet, daß das genannte Spritzgußteil (52) durch Einsatz zwischen einen in das Gehäuse (10) eingearbeiteten Vorsprung (74) und die genannte Durchführung (18) im Gehäuse (10) positioniert wird.
  7. Pol nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der genannte Kolben (36) aus einem Kunststoff-Spritzgußteil besteht, auf das eine Düse (38) zur Führung der Gase zur Beblasung des Lichtbogens aufgeschnappt ist.
  8. Pol nach Anspruch 7, dadurch gekennzeichnet, daß der Kolben (36) ein Abstreifelement (48) aufweist, das die Dichtigkeit zwischen dem Kolben (26) und dem genannten Gehäuse (10) gewährleistet.
  9. Pol nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er ein flexibles Leitungsband (78) zur Stromzufuhr aufweist, das einerseits mit dem beweglichen Gleitkontakt (26) und andererseits mit einer seitlichen Durchführung (18) des genannten Gehäuses (10) verbunden ist und sich annähernd in einer quer zum Gehäuse liegenden Ebene erstreckt.
  10. Pol nach Anspruch 9, dadurch gekennzeichnet, daß das genannte Leitungsband (78) in der Mittelposition des beweglichen Kontakts (26) annähernd in einer Querebene des Gehäuses verläuft, in der die genannte Durchführung (18) liegt, und an einem der Durchführung genau gegenüberliegenden Punkt am beweglichen Kontakt befestigt ist.
EP89420486A 1989-01-17 1989-12-12 Pol für selbstblasenden elektrischen Schalter Expired - Lifetime EP0378950B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8900581 1989-01-17
FR8900581A FR2641898B1 (fr) 1989-01-17 1989-01-17 Disjoncteur electrique a autosoufflage

Publications (2)

Publication Number Publication Date
EP0378950A1 EP0378950A1 (de) 1990-07-25
EP0378950B1 true EP0378950B1 (de) 1994-04-20

Family

ID=9377849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420486A Expired - Lifetime EP0378950B1 (de) 1989-01-17 1989-12-12 Pol für selbstblasenden elektrischen Schalter

Country Status (11)

Country Link
US (1) US5095183A (de)
EP (1) EP0378950B1 (de)
JP (1) JP3133044B2 (de)
CN (1) CN1024970C (de)
AU (1) AU626380B2 (de)
BR (1) BR9000156A (de)
CA (1) CA2006033C (de)
DE (1) DE68914819T2 (de)
ES (1) ES2055143T3 (de)
FR (1) FR2641898B1 (de)
ZA (1) ZA9028B (de)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1292453B1 (it) 1997-07-02 1999-02-08 Aeg Niederspannungstech Gmbh Gruppo rotante di contatti per interrutttori di alta portata
DE19819242B4 (de) 1998-04-29 2005-11-10 Ge Power Controls Polska Sp.Z.O.O. Thermomagnetischer Leistungsschalter
US6114641A (en) * 1998-05-29 2000-09-05 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6087913A (en) * 1998-11-20 2000-07-11 General Electric Company Circuit breaker mechanism for a rotary contact system
US6037555A (en) * 1999-01-05 2000-03-14 General Electric Company Rotary contact circuit breaker venting arrangement including current transformer
US6166344A (en) * 1999-03-23 2000-12-26 General Electric Company Circuit breaker handle block
US6262872B1 (en) 1999-06-03 2001-07-17 General Electric Company Electronic trip unit with user-adjustable sensitivity to current spikes
US6268991B1 (en) 1999-06-25 2001-07-31 General Electric Company Method and arrangement for customizing electronic circuit interrupters
US6218917B1 (en) 1999-07-02 2001-04-17 General Electric Company Method and arrangement for calibration of circuit breaker thermal trip unit
US6188036B1 (en) 1999-08-03 2001-02-13 General Electric Company Bottom vented circuit breaker capable of top down assembly onto equipment
US6252365B1 (en) 1999-08-17 2001-06-26 General Electric Company Breaker/starter with auto-configurable trip unit
US6710988B1 (en) 1999-08-17 2004-03-23 General Electric Company Small-sized industrial rated electric motor starter switch unit
US6396369B1 (en) 1999-08-27 2002-05-28 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6175288B1 (en) 1999-08-27 2001-01-16 General Electric Company Supplemental trip unit for rotary circuit interrupters
US6232570B1 (en) 1999-09-16 2001-05-15 General Electric Company Arcing contact arrangement
US6326869B1 (en) 1999-09-23 2001-12-04 General Electric Company Clapper armature system for a circuit breaker
US6239395B1 (en) 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
US6229413B1 (en) 1999-10-19 2001-05-08 General Electric Company Support of stationary conductors for a circuit breaker
US6317018B1 (en) 1999-10-26 2001-11-13 General Electric Company Circuit breaker mechanism
US6232856B1 (en) 1999-11-02 2001-05-15 General Electric Company Magnetic shunt assembly
EP1098343B1 (de) 1999-11-03 2005-09-21 AEG Niederspannungstechnik GmbH & Co. KG Drehkontaktanordnung für Schutzschalter
US6377144B1 (en) 1999-11-03 2002-04-23 General Electric Company Molded case circuit breaker base and mid-cover assembly
US6300586B1 (en) 1999-12-09 2001-10-09 General Electric Company Arc runner retaining feature
US6310307B1 (en) 1999-12-17 2001-10-30 General Electric Company Circuit breaker rotary contact arm arrangement
US6184761B1 (en) 1999-12-20 2001-02-06 General Electric Company Circuit breaker rotary contact arrangement
US6172584B1 (en) 1999-12-20 2001-01-09 General Electric Company Circuit breaker accessory reset system
US6215379B1 (en) 1999-12-23 2001-04-10 General Electric Company Shunt for indirectly heated bimetallic strip
US6281461B1 (en) 1999-12-27 2001-08-28 General Electric Company Circuit breaker rotor assembly having arc prevention structure
US6346869B1 (en) 1999-12-28 2002-02-12 General Electric Company Rating plug for circuit breakers
US6211758B1 (en) 2000-01-11 2001-04-03 General Electric Company Circuit breaker accessory gap control mechanism
US6239677B1 (en) 2000-02-10 2001-05-29 General Electric Company Circuit breaker thermal magnetic trip unit
US6429759B1 (en) 2000-02-14 2002-08-06 General Electric Company Split and angled contacts
US6313425B1 (en) 2000-02-24 2001-11-06 General Electric Company Cassette assembly with rejection features
US6281458B1 (en) 2000-02-24 2001-08-28 General Electric Company Circuit breaker auxiliary magnetic trip unit with pressure sensitive release
US6404314B1 (en) 2000-02-29 2002-06-11 General Electric Company Adjustable trip solenoid
US6204743B1 (en) 2000-02-29 2001-03-20 General Electric Company Dual connector strap for a rotary contact circuit breaker
US6448521B1 (en) 2000-03-01 2002-09-10 General Electric Company Blocking apparatus for circuit breaker contact structure
US6379196B1 (en) 2000-03-01 2002-04-30 General Electric Company Terminal connector for a circuit breaker
US6340925B1 (en) 2000-03-01 2002-01-22 General Electric Company Circuit breaker mechanism tripping cam
US6346868B1 (en) 2000-03-01 2002-02-12 General Electric Company Circuit interrupter operating mechanism
US6211757B1 (en) 2000-03-06 2001-04-03 General Electric Company Fast acting high force trip actuator
US6366438B1 (en) 2000-03-06 2002-04-02 General Electric Company Circuit interrupter rotary contact arm
US6459349B1 (en) 2000-03-06 2002-10-01 General Electric Company Circuit breaker comprising a current transformer with a partial air gap
US6496347B1 (en) 2000-03-08 2002-12-17 General Electric Company System and method for optimization of a circuit breaker mechanism
US6429659B1 (en) 2000-03-09 2002-08-06 General Electric Company Connection tester for an electronic trip unit
US6232859B1 (en) 2000-03-15 2001-05-15 General Electric Company Auxiliary switch mounting configuration for use in a molded case circuit breaker
US6218919B1 (en) 2000-03-15 2001-04-17 General Electric Company Circuit breaker latch mechanism with decreased trip time
US6366188B1 (en) 2000-03-15 2002-04-02 General Electric Company Accessory and recess identification system for circuit breakers
US6459059B1 (en) 2000-03-16 2002-10-01 General Electric Company Return spring for a circuit interrupter operating mechanism
US6421217B1 (en) 2000-03-16 2002-07-16 General Electric Company Circuit breaker accessory reset system
US6388213B1 (en) 2000-03-17 2002-05-14 General Electric Company Locking device for molded case circuit breakers
FR2806548B1 (fr) 2000-03-17 2002-08-23 Ge Power Controls France Mecanisme extractible pour disjoncteurs
US6472620B2 (en) 2000-03-17 2002-10-29 Ge Power Controls France Sas Locking arrangement for circuit breaker draw-out mechanism
US6479774B1 (en) 2000-03-17 2002-11-12 General Electric Company High energy closing mechanism for circuit breakers
US6586693B2 (en) 2000-03-17 2003-07-01 General Electric Company Self compensating latch arrangement
US6373010B1 (en) 2000-03-17 2002-04-16 General Electric Company Adjustable energy storage mechanism for a circuit breaker motor operator
US6476698B1 (en) 2000-03-17 2002-11-05 General Electric Company Convertible locking arrangement on breakers
US6559743B2 (en) 2000-03-17 2003-05-06 General Electric Company Stored energy system for breaker operating mechanism
US6639168B1 (en) 2000-03-17 2003-10-28 General Electric Company Energy absorbing contact arm stop
US6747535B2 (en) 2000-03-27 2004-06-08 General Electric Company Precision location system between actuator accessory and mechanism
US6373357B1 (en) 2000-05-16 2002-04-16 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6400245B1 (en) 2000-10-13 2002-06-04 General Electric Company Draw out interlock for circuit breakers
US6531941B1 (en) 2000-10-19 2003-03-11 General Electric Company Clip for a conductor in a rotary breaker
US6429760B1 (en) 2000-10-19 2002-08-06 General Electric Company Cross bar for a conductor in a rotary breaker
US6806800B1 (en) 2000-10-19 2004-10-19 General Electric Company Assembly for mounting a motor operator on a circuit breaker
US6362711B1 (en) 2000-11-10 2002-03-26 General Electric Company Circuit breaker cover with screw locating feature
US6380829B1 (en) 2000-11-21 2002-04-30 General Electric Company Motor operator interlock and method for circuit breakers
US6448522B1 (en) 2001-01-30 2002-09-10 General Electric Company Compact high speed motor operator for a circuit breaker
US6476337B2 (en) 2001-02-26 2002-11-05 General Electric Company Auxiliary switch actuation arrangement
US6882258B2 (en) * 2001-02-27 2005-04-19 General Electric Company Mechanical bell alarm assembly for a circuit breaker
US6678135B2 (en) 2001-09-12 2004-01-13 General Electric Company Module plug for an electronic trip unit
US6469882B1 (en) 2001-10-31 2002-10-22 General Electric Company Current transformer initial condition correction
US6804101B2 (en) 2001-11-06 2004-10-12 General Electric Company Digital rating plug for electronic trip unit in circuit breakers
CN101504895A (zh) * 2009-01-16 2009-08-12 北京维益埃电气有限公司 新型压气式负荷开关单元
EP2325858A1 (de) * 2009-11-20 2011-05-25 ABB Technology AG Mittelspannungsschutzschalteranordnung
CN102412070B (zh) * 2011-07-25 2014-01-29 中国西电电气股份有限公司 动触头的导向与缓冲装置
CN103646820A (zh) * 2013-12-13 2014-03-19 上海灏赛电器有限公司 一种高压直动压气式sf6负荷开关装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH568649A5 (de) * 1974-07-29 1975-10-31 Sprecher & Schuh Ag
FR2438906A2 (fr) * 1978-10-09 1980-05-09 Merlin Gerin Interrupteur a autosoufflage module equipe d'un ecran a fentes de passage du gaz
FR2441916A1 (fr) * 1978-11-14 1980-06-13 Merlin Gerin Disjoncteur electrique a autosoufflage equipe d'un dispositif a contacts principaux perfectionnes

Also Published As

Publication number Publication date
JP3133044B2 (ja) 2001-02-05
CA2006033C (en) 1999-11-02
ES2055143T3 (es) 1994-08-16
ZA9028B (en) 1990-09-26
EP0378950A1 (de) 1990-07-25
FR2641898B1 (fr) 1991-03-15
US5095183A (en) 1992-03-10
DE68914819D1 (de) 1994-05-26
DE68914819T2 (de) 1994-10-27
BR9000156A (pt) 1990-10-23
AU4934290A (en) 1991-08-29
CN1044361A (zh) 1990-08-01
CA2006033A1 (en) 1990-07-17
JPH02227924A (ja) 1990-09-11
AU626380B2 (en) 1992-07-30
FR2641898A1 (fr) 1990-07-20
CN1024970C (zh) 1994-06-08

Similar Documents

Publication Publication Date Title
EP0378950B1 (de) Pol für selbstblasenden elektrischen Schalter
EP0462024A1 (de) Elektrischer Schalter mit Druckselbsterzeugung und Lichtbogenrotation
EP1946348A1 (de) Erdtrennschalter und verfahren zu seiner herstellung
FR2576142A1 (fr) Disjoncteur a haute tension, a gaz comprime, a energie de manoeuvre assistee par l'effet thermique de l'arc
EP1571685A1 (de) Befestigungsvorrichtung für einen Schutzschirm in einem elektrischen Schalter, insbesondere einem Vakuumschalter.
EP2402969A1 (de) Unterbrechungskammer eines Schutzschalters für Hoch- und Mittelspannung mit reduzierter Bedienungsenergie
CA2054509C (fr) Interrupteur rotatif multipolaire
FR2619246A1 (fr) Disjoncteur a haute ou moyenne tension a gaz sous pression a energie de coupure prelevee sur celle de l'arc
FR2576144A1 (fr) Disjoncteur a haute tension, a gaz comprime, a faible energie de manoeuvre
FR2576143A1 (fr) Disjoncteur a haute tension, a gaz comprime, a energie de manoeuvre assistee par l'effet thermique de l'arc et a double mouvement
EP0897185B1 (de) Schalter mit Selbstbeblasung mit reduzierter Kompression
EP0785562B1 (de) Lastschalter mit Kontakten mit Doppelbewegung
FR2920251A1 (fr) Dispositif de coupure pour appareillage electrique de commutation
FR2542918A1 (fr) Interrupteur a arc tournant a circulation des gaz ionises
FR2676857A1 (fr) Dispositif d'insertion d'une varistance, incorpore dans un disjoncteur a haute tension.
FR2661550A1 (fr) Disjoncteur a haute tension a arc serie.
EP0078719B1 (de) Selbstblasschalter mit Dauermagnet
CA2196442C (fr) Disjoncteur a haute tension a resistance inseree a la fermeture
FR2535518A1 (fr) Chambre de coupure pour disjoncteur a gaz
EP1195788A1 (de) Schalterpol für Vakuumröhre
FR3038448A1 (fr) Disjoncteur moyenne ou haute tension a cylindre de compression optimise
FR2694987A1 (fr) Disjoncteur à haute tension ayant une chambre de coupure à volume de soufflage variable.
FR2556496A1 (fr) Disjoncteur a gaz comprime
EP0681129A1 (de) Impulsgesteuertes elektromagnetisches Ventil
FR2607621A1 (fr) Disjoncteur a haute tension a gaz dielectrique a resistance de fermeture

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE ES GB IT LI SE

17P Request for examination filed

Effective date: 19901115

17Q First examination report despatched

Effective date: 19930630

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19940420

Ref country code: GB

Effective date: 19940420

REF Corresponds to:

Ref document number: 68914819

Country of ref document: DE

Date of ref document: 19940526

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2055143

Country of ref document: ES

Kind code of ref document: T3

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19940420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19941231

Ref country code: CH

Effective date: 19941231

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990215

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991206

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991231

BERE Be: lapsed

Owner name: MERLIN GERIN

Effective date: 19991231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011002

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20041229

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051213

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20051213