EP0011542A1 - Leistungsschalter mit getrennten Leistungs- und Parallelstrombahnen - Google Patents

Leistungsschalter mit getrennten Leistungs- und Parallelstrombahnen Download PDF

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Publication number
EP0011542A1
EP0011542A1 EP79400819A EP79400819A EP0011542A1 EP 0011542 A1 EP0011542 A1 EP 0011542A1 EP 79400819 A EP79400819 A EP 79400819A EP 79400819 A EP79400819 A EP 79400819A EP 0011542 A1 EP0011542 A1 EP 0011542A1
Authority
EP
European Patent Office
Prior art keywords
contacts
main
circuit
circuit breaker
movable
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
EP79400819A
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English (en)
French (fr)
Other versions
EP0011542B1 (de
EP0011542B2 (de
Inventor
Jean-Louis Mircovich
Marcel Macaire
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9214898&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0011542(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of EP0011542A1 publication Critical patent/EP0011542A1/de
Publication of EP0011542B1 publication Critical patent/EP0011542B1/de
Application granted granted Critical
Publication of EP0011542B2 publication Critical patent/EP0011542B2/de
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
    • 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 object of the present invention is to remedy the aforementioned drawbacks, and to provide an improved self-blowing circuit breaker having a movable assembly of low inertia and a connection with relative movement not traversed by the nominal current, the assembly being arranged to avoid any re-ignition on the main contacts.
  • the circuit breaker is characterized in that said main circuit and said auxiliary circuit are connected in parallel to said input and output terminals to constitute two almost independent current flow circuits inside said casing, said main and auxiliary circuits. being arranged to ensure the passage of almost all the current in the main circuit in the closed position of said pairs of contacts and rapid switching of the current on the auxiliary circuit when the main contacts are separated, said auxiliary circuit comprising an electrical connection to relative movement between the movable arcing contact and the associated terminal, which connection is traversed.- only by a small fraction of the permanent current.
  • the invention starts from the recognition of the advantage of separating the functions of conduction of the permanent current and that of breaking the current, in particular of fault.
  • the main circuit provides the first function and the Juggler and the conductor section as well as the structure of the contacts are chosen for this purpose.
  • the second function is provided by the auxiliary circuit on which the current is switched when the main contacts are separated.
  • Another known circuit breaker (German patent 488.803) of this type has an auxiliary circuit having a high reactance with respect to that of the main circuit which prevents rapid switching of the current on the auxiliary circuit.
  • the straight main circuit extends longitudinally in the enclosure near and parallel to the auxiliary circuit, the reactance of the loop formed by the main and auxiliary circuits being low.
  • the main contact in the form of a pivoting knife performs an appropriate opening stroke independent of that of the arcing contacts.
  • the arcing contacts and the main contacts are advantageously offset longitudinally to avoid an interaction of the cuts and an internal partition of the envelope can separate the cutting zones.
  • the circuit breaker according to the invention may be of the type with pneumatic self-blowing and / or with magnetic self-blowing of the arc drawn between the arcing contacts.
  • a pole of the self-blowing circuit breaker comprises a sealed casing 10 filled with insulating gas with high dielectric strength, in particular sulfur hexafluoride.
  • the casing 10, of molded insulating material is closed pr a cover 12 and serves as a housing for a cir main circuit 14 for passing the nominal current, an auxiliary circuit 16 for shunting the main circuit for breaking the arc, a control mechanism 18 for the moving element for successive opening of the main circuit 14 and auxiliary circuit 16, and two terminals 20, 22 for supplying current constituted by crossings of the wall of the insulating casing 10 offset longitudinally.
  • the main circuit 14 comprises a movable main contact 24 provided with a plurality of pairs of fingers 26a, 26b, 26c, 26d ..., articulated on a fixed axis 28 secured to a first conductor 30 for connection with the lower terminal 22
  • An elastic means, in particular a compression spring 32 is associated with each pair to urge the corresponding fingers towards one another, so as to form a clamp cooperating in the closed position of the main circuit 14 with an extension 34, 36 a fixed main contact 38.
  • the latter is electrically connected to the upper terminal 20 by a second connecting conductor 40.
  • the tightening of the fingers 26a, 26b; 26c, 26d on the corresponding extension 34, 36 is reinforced by the electrodynamic attraction exerted between said fingers of each pair traversed by currents of the same direction.
  • the auxiliary circuit 16 connected in parallel to the main circuit 14 inside the casing 10, includes aligned arcing contacts, one of which is fixed 42 is connected to the upper terminal 20, and the other of which is movable 44 is integral with a conductive rod 46 coupled to a control crank 48.
  • the external actuation mechanism transmits the movement to the crank 48 by means of a rotary transmission shaft 50 passing through the wall of the casing 10 with the interposition of a sealed bearing 52.
  • An electrical connection with relative movement, in particular a flexible shunt conductor 54 is arranged in the auxiliary circuit 16 between the rod 46 and the lower terminal 22.
  • An intermediate partition 56 parallel to the bottom 58 and to the cover 12 of the pole, divides the internal space of the envelope 10 into two separate compartments 60, 62 superimposed.
  • the lower compartment 60 contains the main contacts 24, 38, and the upper compartment 62 contains the cut-off interval 64 formed between the arcing contacts 42, 44 in a separate position.
  • the physical separation between the main contact interruption zone and the cut-off interval 64 avoids any risk of re-ignition of the arc in the vicinity of said zone due to polluted hot gases coming from the cut.
  • the current supply terminals 20, 22 form bypass nodes of the two main 14 and auxiliary 16 circuits, and the shunt conductor 54 is traversed exclusively by the fault current.
  • the two circuits 14, 16 extend parallel to the interior of the envelope 10 with a small transverse offset so as to form a loop of low reactance, the circuit 14 following the shortest path.
  • the self-blowing device 66 of a type well known to specialists is arranged in the upper compartment 62 and comprises a movable piston 68 secured to the rod 46.
  • the piston 68 carries a blowing nozzle 70 coaxially surrounding the contacts d arc 42, 44 in the closed position, and cooperates with limited sliding with a fixed cylinder 72 to define a pistonable volume 74 for compressing the insulating gas.
  • a flow of blowing gas is expelled through openings 76 provided in the piston 68 in the convergent of the nozzle 70, towards the cut-off interval 64 for extinction of the 'bow.
  • the actuation mechanism comprises a kinematic link 78 mechanically connecting the rod 46 of the arcing contact 44 to the main movable contact 24 to transform the rectilinear movement of the rod 46 into a pivotal movement ment of contact 24 during the travel of the moving equipment of the circuit breaker.
  • This kinematic link 78 is provided with a transmission lever 80 secured to the fingers 26 and cooperating at its opposite end with a drive pin 82 fixed on the rod 46.
  • the stroke of the clamps of the main movable contact 24 is different and in particular shorter than that of the movable arcing contact 44.
  • the actuation mechanism After detecting a fault current on the network to be protected, the actuation mechanism causes the downward axial translation (in the direction of the arrow F) of the rod 46 and the pivoting of the lever 80 clockwise causing the opening of the main contacts 24, 38, and the switching of the current in the auxiliary shunt circuit 16.
  • the path of the fault current is then as follows: upper terminal 20, fixed arcing contact 42, movable arcing contact 44, rod 46, shunt conductor 54, conductor 30, lower terminal 22.
  • the course of the crew continues mobile causes the separation of the arcing contacts 42, 44 and the blowing of extinguishing gas from the arcing.
  • the cutting zone 64 is physically separated from the main contacts 38, 24, in particular by the partition 56 and prevents any re-ignition of the arc between said main contacts.
  • the arcing contacts 42, 44 can close first or, on the contrary, after the main contacts 24, 38 close, depending on the desired operating conditions.
  • the control device is of course arranged accordingly.
  • the invention is applicable to a circuit breaker with pneumatic self-blowing, with magnetic self-blowing or with combined magnetic and pneumatic self-blowing.

Landscapes

  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
EP79400819A 1978-11-14 1979-11-05 Leistungsschalter mit getrennten Leistungs- und Parallelstrombahnen Expired EP0011542B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7832214A FR2441916A1 (fr) 1978-11-14 1978-11-14 Disjoncteur electrique a autosoufflage equipe d'un dispositif a contacts principaux perfectionnes
FR7832214 1978-11-14

Publications (3)

Publication Number Publication Date
EP0011542A1 true EP0011542A1 (de) 1980-05-28
EP0011542B1 EP0011542B1 (de) 1983-07-20
EP0011542B2 EP0011542B2 (de) 1988-02-10

Family

ID=9214898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400819A Expired EP0011542B2 (de) 1978-11-14 1979-11-05 Leistungsschalter mit getrennten Leistungs- und Parallelstrombahnen

Country Status (6)

Country Link
US (1) US4309581A (de)
EP (1) EP0011542B2 (de)
JP (1) JPS5568021A (de)
CS (1) CS231167B2 (de)
DE (1) DE2965950D1 (de)
FR (1) FR2441916A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194489A2 (de) * 1985-03-12 1986-09-17 BBC Brown Boveri AG Druckgasschalter
EP0239460A1 (de) * 1986-03-26 1987-09-30 Merlin Gerin Elektrischer Schalter mit verbesserter dielektrischer Festigkeit
EP0240406A1 (de) * 1986-04-03 1987-10-07 Merlin Gerin Elektrischer autopneumatischer Druckgasschalter mit hoher dielektrischer Festigkeit
FR2631735A1 (fr) * 1988-05-17 1989-11-24 Merlin Gerin Dispositif de reglage d'un interrupteur electrique moyenne tension
FR2641898A1 (fr) * 1989-01-17 1990-07-20 Merlin Gerin Disjoncteur electrique a autosoufflage
EP0398213A1 (de) * 1989-05-19 1990-11-22 Gec Alsthom Sa Mittelspannungsschalter für hohen Nennstrom
EP0450567A1 (de) * 1990-04-04 1991-10-09 Gec Alsthom Sa Hoch- oder Mittelspannungs-Schalter mit aufeinanderstossenden Lichtbogenkontakten
FR2677168A1 (fr) * 1991-06-03 1992-12-04 Merlin Gerin Disjoncteur moyenne tension a energie de commande reduite.
FR2735277A1 (fr) * 1995-06-12 1996-12-13 Schneider Electric Sa Disjoncteur a moyenne tension et a isolement gazeux

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494493A1 (fr) * 1980-11-17 1982-05-21 Merlin Gerin Disjoncteur electrique a autosoufflage par rotation de l'arc
US5059753A (en) * 1987-11-06 1991-10-22 Cooper Industries, Inc. SF6 puffer recloser
DE19613568A1 (de) * 1996-04-04 1997-10-09 Asea Brown Boveri Leistungsschalter
US8040664B2 (en) * 2008-05-30 2011-10-18 Itron, Inc. Meter with integrated high current switch
US8890711B2 (en) 2009-09-30 2014-11-18 Itron, Inc. Safety utility reconnect
CA2716046C (en) 2009-09-30 2016-11-08 Itron, Inc. Gas shut-off valve with feedback
WO2011041260A1 (en) * 2009-09-30 2011-04-07 Itron, Inc. Utility remote disconnect from a meter reading system
US9005423B2 (en) 2012-12-04 2015-04-14 Itron, Inc. Pipeline communications
CN109087828B (zh) * 2018-08-09 2024-05-07 西安中熔电气股份有限公司 一种新型带激励切断功能的接触器结构

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1302499A (fr) * 1961-06-29 1962-08-31 Comp Generale Electricite Interrupteur électrique comportant un dispositif de coupure à autosoufflage dans un gaz halogéné
FR1458334A (fr) * 1965-08-18 1966-03-04 Comp Generale Electricite Dispositif de coupure pour courants de forte intensité
US3257532A (en) * 1962-12-17 1966-06-21 Sprecher & Schuh Ag Arc-extinguishing circuit-breakers
FR1445422A (fr) * 1965-02-03 1966-07-08 Sachsenwerk Licht & Kraft Ag Disjoncteur de puissance électrique pour fortes intensités nominales
US3271548A (en) * 1963-10-11 1966-09-06 Westinghouse Electric Corp Contact constructions for circuit interrupters
CH444260A (de) * 1966-02-15 1967-09-30 Bernardovich Irany Pavel Olarmer Hochspannungsschalter
GB1126362A (en) * 1965-07-06 1968-09-05 Ass Elect Ind Improvements in and relating to electric circuit breakers
US3671696A (en) * 1970-11-16 1972-06-20 Allis Chalmers Mfg Co Vacuum interrupter shunted with mechanical switch
FR2285700A1 (fr) * 1974-09-19 1976-04-16 Alsthom Cgee Dispositif de coupure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE488803C (de) * 1927-07-12 1930-01-08 Siemens Schuckertwerke Akt Ges Hochstromoelschalter mit Mehrfachunterbrechung und getrennter Anordnung von Haupt- und Abreissschaltstuecken in besonderen OElgefaessen
JPS50158883A (de) * 1974-06-13 1975-12-23
JPS52102575A (en) * 1976-02-25 1977-08-27 Hitachi Ltd Buffer gas breaker with resistive contact

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1302499A (fr) * 1961-06-29 1962-08-31 Comp Generale Electricite Interrupteur électrique comportant un dispositif de coupure à autosoufflage dans un gaz halogéné
US3257532A (en) * 1962-12-17 1966-06-21 Sprecher & Schuh Ag Arc-extinguishing circuit-breakers
US3271548A (en) * 1963-10-11 1966-09-06 Westinghouse Electric Corp Contact constructions for circuit interrupters
FR1445422A (fr) * 1965-02-03 1966-07-08 Sachsenwerk Licht & Kraft Ag Disjoncteur de puissance électrique pour fortes intensités nominales
GB1126362A (en) * 1965-07-06 1968-09-05 Ass Elect Ind Improvements in and relating to electric circuit breakers
FR1458334A (fr) * 1965-08-18 1966-03-04 Comp Generale Electricite Dispositif de coupure pour courants de forte intensité
CH444260A (de) * 1966-02-15 1967-09-30 Bernardovich Irany Pavel Olarmer Hochspannungsschalter
US3671696A (en) * 1970-11-16 1972-06-20 Allis Chalmers Mfg Co Vacuum interrupter shunted with mechanical switch
FR2285700A1 (fr) * 1974-09-19 1976-04-16 Alsthom Cgee Dispositif de coupure

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194489A2 (de) * 1985-03-12 1986-09-17 BBC Brown Boveri AG Druckgasschalter
EP0194489A3 (en) * 1985-03-12 1989-03-15 Bbc Brown Boveri Ag Gas blast circuit breaker
EP0239460A1 (de) * 1986-03-26 1987-09-30 Merlin Gerin Elektrischer Schalter mit verbesserter dielektrischer Festigkeit
FR2596576A1 (fr) * 1986-03-26 1987-10-02 Merlin Gerin Disjoncteur electrique a autosoufflage a tenue dielectrique amelioree
US4748304A (en) * 1986-03-26 1988-05-31 Merlin Gerin Electrical circuit breaker with improved dielectric withstand
EP0240406A1 (de) * 1986-04-03 1987-10-07 Merlin Gerin Elektrischer autopneumatischer Druckgasschalter mit hoher dielektrischer Festigkeit
FR2596915A1 (fr) * 1986-04-03 1987-10-09 Merlin Gerin Disjoncteur electrique a autosoufflage ayant une tenue dielectrique elevee
FR2631735A1 (fr) * 1988-05-17 1989-11-24 Merlin Gerin Dispositif de reglage d'un interrupteur electrique moyenne tension
US5095183A (en) * 1989-01-17 1992-03-10 Merlin Gerin Gas-blast electrical circuit breaker
EP0378950A1 (de) * 1989-01-17 1990-07-25 Merlin Gerin Pol für selbstblasenden elektrischen Schalter
FR2641898A1 (fr) * 1989-01-17 1990-07-20 Merlin Gerin Disjoncteur electrique a autosoufflage
US4996398A (en) * 1989-05-19 1991-02-26 Gec Alsthom Sa Medium tension circuit breaking having high nominal current
FR2647254A1 (fr) * 1989-05-19 1990-11-23 Alsthom Gec Disjoncteur a moyenne tension a courant nominal eleve
EP0398213A1 (de) * 1989-05-19 1990-11-22 Gec Alsthom Sa Mittelspannungsschalter für hohen Nennstrom
EP0450567A1 (de) * 1990-04-04 1991-10-09 Gec Alsthom Sa Hoch- oder Mittelspannungs-Schalter mit aufeinanderstossenden Lichtbogenkontakten
FR2660792A1 (fr) * 1990-04-04 1991-10-11 Alsthom Gec Disjoncteur a haute ou moyenne tension a contacts d'arc en bout.
US5155314A (en) * 1990-04-04 1992-10-13 Gec Alsthom Sa Medium or high tension circuit breaker having end-to-end arcing contacts
FR2677168A1 (fr) * 1991-06-03 1992-12-04 Merlin Gerin Disjoncteur moyenne tension a energie de commande reduite.
EP0517620A1 (de) * 1991-06-03 1992-12-09 Schneider Electric Sa Mittelspannungslastschalter mit reduzierter Steuerenergie
US5239150A (en) * 1991-06-03 1993-08-24 Merlin Gerin Medium voltage circuit breaker with operating mechanism providing reduced operating energy
FR2735277A1 (fr) * 1995-06-12 1996-12-13 Schneider Electric Sa Disjoncteur a moyenne tension et a isolement gazeux
EP0749139A1 (de) * 1995-06-12 1996-12-18 Schneider Electric Sa Gasisolierter Mittelspannungslastschalter
CN1068963C (zh) * 1995-06-12 2001-07-25 施耐德电器工业公司 气体隔离中压电路断路器

Also Published As

Publication number Publication date
DE2965950D1 (en) 1983-08-25
FR2441916A1 (fr) 1980-06-13
EP0011542B1 (de) 1983-07-20
FR2441916B1 (de) 1981-10-02
JPH0139171B2 (de) 1989-08-18
CS231167B2 (en) 1984-10-15
CS761579A2 (en) 1984-02-13
EP0011542B2 (de) 1988-02-10
US4309581A (en) 1982-01-05
JPS5568021A (en) 1980-05-22

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