EP2463884B1 - Abschaltungsvorrichtung mit mehreren einpoligen Abschaltungsblocks und nur einem Betätigungsmechanismus dieser Blocks - Google Patents

Abschaltungsvorrichtung mit mehreren einpoligen Abschaltungsblocks und nur einem Betätigungsmechanismus dieser Blocks Download PDF

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Publication number
EP2463884B1
EP2463884B1 EP11354062.9A EP11354062A EP2463884B1 EP 2463884 B1 EP2463884 B1 EP 2463884B1 EP 11354062 A EP11354062 A EP 11354062A EP 2463884 B1 EP2463884 B1 EP 2463884B1
Authority
EP
European Patent Office
Prior art keywords
abutment
auxiliary
switchgear according
driving rod
units
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.)
Active
Application number
EP11354062.9A
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English (en)
French (fr)
Other versions
EP2463884A1 (de
Inventor
Christophe Grumel
Denis Giraud
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Priority to PL11354062T priority Critical patent/PL2463884T3/pl
Publication of EP2463884A1 publication Critical patent/EP2463884A1/de
Application granted granted Critical
Publication of EP2463884B1 publication Critical patent/EP2463884B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles

Definitions

  • the invention relates to a cut-off device comprising a unipolar main breaking unit supporting a control mechanism and at least a first unipolar auxiliary breaking block, said blocks being arranged side by side in a transverse direction.
  • Each cutoff block comprises a rotating bar coupled to a movable contact bridge guided rotation about an axis of rotation.
  • Two fixed contacts cooperate with said movable contact bridge and are respectively connected to a current lead.
  • the control mechanism of the breaking blocks comprises a lever controlling at least one driving rod passing through the bars, an angular displacement of the at least one driving rod driving that of the movable contact bridges between an open position and a closing position of the contacts.
  • control mechanism capable of acting on several breaking blocks.
  • control mechanism is adapted to operate with multipole breaking devices such as in particular three-pole or four-pole devices.
  • control mechanism When the control mechanism is associated with the operation of a three-pole breaking device, there is a symmetrical positioning of the mechanism relative to the three cutoff units positioned side by side. The transmission of the control forces Fc is then distributed uniformly between all the poles of contact. The forces Fp of pressure and over-contact stroke measured at each contact pole are substantially constant.
  • Bipolar or four-pole circuit breakers have the disadvantage of inducing an asymmetry in the distribution of the poles with respect to the centralized position of the control mechanism. This asymmetry is particularly prejudicial for products composed of a cut-off bulb with a contact bar.
  • a connecting member of the control mechanism connects all the contact bars between them.
  • the connecting member is generally composed of at least one drive rod. Said driving rod then undergoes significant mechanical stress under the combined effect of the contact pressure forces Fp, Fc and the control mechanism.
  • the bulb or the eccentric cutoff block with respect to the control mechanism comprises an auxiliary mechanism comprising spring means. Coupling means connect the main control mechanism to the auxiliary mechanism.
  • additional control means which also create a slowing of the movable contact at the opening. This slowing down ultimately results in faster wear of the contact.
  • additional control means may also take the place of one or more auxiliaries.
  • the solution described in the patent application US2003 / 0098224 includes a control mechanism specifically dedicated to the four-pole cut-off device.
  • the control mechanism is then positioned on two cutoff blocks placed in the center.
  • This solution has the disadvantage of having a specific control mechanism by control device. Indeed the control device associated with a four-pole circuit breaker can not for example be used for a three-pole circuit breaker and vice versa.
  • the invention therefore aims to overcome the drawbacks of the state of the art, so as to provide a cut-off device comprising an effective mechanism for actuating the cutoff blocks.
  • the cut-off device comprises compensation means comprising an abutment against which the driving rod bears in the closed position so as to limit locally to the level of the first auxiliary unit the displacement of said driving rod and applying a torque to said rod to maintain it parallel to the axis of rotation.
  • said at least first auxiliary cutoff unit comprises a housing comprising a circular arc-shaped orifice in which the drive rod moves between the closed and the open positions, the stop being positioned to reduce the length of the arc and the angular displacement of said rod in said orifice.
  • the stop is positioned in the first unipolar cutoff block at one end at one end of the arc forming the orifice so as to reduce the travel of the driving rod moving to inside the hole.
  • the stop is positioned on a outer flange of the cutoff device, said flange being positioned against an outer wall of the housing of the first unipolar breaking block.
  • the breaking device according to the invention comprises three unipolar auxiliary breaking units arranged side by side in a transverse direction, the first auxiliary cutoff block being separated from the two other auxiliary cutoff units by the main cutoff block supporting the control mechanism of said blocks.
  • the stop is rigid at adjustable height.
  • the abutment comprises a deformable means
  • the stop comprises a spring.
  • the cut-off device 600 comprises a main cutoff unit Bp supporting a control mechanism and at least a first auxiliary cutoff unit Ba1.
  • the cutoff device 600 comprises four unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 arranged side by side in a transverse direction.
  • Said device comprises in particular three auxiliary unipolar breaking blocks Ba1, Ba2, Ba3.
  • the first auxiliary breaking unit Ba1 is separated from the other two auxiliary breaking units Ba2, Ba3 by the main breaking block Bp supporting the control mechanism 8 of said blocks.
  • the switching device 100 usually a circuit breaker, is then a four-pole circuit breaker.
  • the switching device 100 comprises a trigger 7 associated with the cutoff device 600.
  • the unipolar cutoff blocks are then intended to be respectively connected on the one hand to the trigger 7 at the downstream range. 5 and on the other hand to a current line to be protected at an upstream range 4.
  • the unipolar cutoff block 10 is also called a light bulb.
  • the elements making up the switching apparatus 100 will be described in relation to the use position in which the circuit breaker 100 is set up in a table, with the nose 9 comprising a handle 88 vertical and parallel to the mounting wall, the upstream connection pads 4 on the power line located at the top and forming the upper face 74 of the cut-off device 100 and the trigger 7 at the bottom.
  • the use of relative positional terms, such as “lateral”, “superior”, “background”, etc., should not be construed as a limiting factor.
  • the controller is intended for control an actuating mechanism 8 of the electrical contacts.
  • Each unipolar cutoff block Bp, Ba1, Ba2, Ba3 allows the breaking of a single pole.
  • Said block is advantageously in the form of a flat housing 12 of molded plastic, with two large parallel faces 14 distant of a thickness e.
  • the thickness e is of the order of 23 mm for a 160 A caliber.
  • the housing 12 is formed of two parts, preferably mirror symmetrical, secured to one another on their large face 14 by any suitable means. As illustrated in a preferred embodiment in figure 5 a complementary tenon / mortise type system makes it possible to fit the housing parts 12 to one another, one of the two parts (not shown) comprising lugs adapted to penetrate the recesses 16 of the other. Arrangements 18 are also made to allow the juxtaposition of Bp, Ba1, Ba2, Ba3 unipolar block housings 12 and their joining together for a multipole circuit breaker 100.
  • Each unipolar breaking block comprises a cutoff mechanism 20 housed in the housing 12.
  • the cutting mechanism 20 is preferably double rotary cut.
  • the switching device 100 according to the invention is particularly intended for applications up to 630 A and in some applications up to 800 A, for which the simple cut may not be sufficient.
  • the cut-off mechanism 20 comprises a movable contact bridge 22 rotatable about an axis of rotation Z.
  • the movable contact bridge 22 is mounted floating in a rotary bar 26 having a transverse housing orifice of said contact bridge. Said bridge protrudes on either side of the bar 26.
  • Said rotary bar 26 is interposed between the two lateral faces 14 of the housing 12 cutoff block Bp, Ba1, Ba2, Ba3.
  • the movable contact bridge 22 comprises at each end a contact pad.
  • the breaking block comprises a pair of fixed contacts 41, 51. Each fixed contact is intended to cooperate with a contact pad of the movable contact bridge 22.
  • a first fixed contact 41 is intended to be connected to the line of contact. current by an upstream range 4.
  • a second fixed contact 51 is intended to be connected to the trigger 7 by a downstream range 5.
  • Each housing portion 12 comprises a corresponding passage recess.
  • Said bridge is pivotally mounted between an open position in which the contact pads are spaced apart from the fixed contacts 41, 51 and a closed position in which they are in contact with each of the fixed contacts.
  • the contact pads of the contact bridge 22 are preferably placed symmetrically with respect to the axis of rotation Z.
  • the unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 preferably comprise two arcing chambers 24 for extinguishing electric arcs.
  • Each interrupting chamber 24 opens on an opening volume between a contact pad of the contact bridge 22 and a fixed contact.
  • Each breaking chamber 24 is delimited by two side walls 24A, a rear wall remote from the opening volume 24B, a bottom wall 24C close to the fixed contact and an upper wall 24D.
  • each breaking chamber 24 comprises a stack of at least two deionization fins 25 separated from each other by a gap for exchange of the cutoff gases.
  • Each interrupting chamber 24 comprises at least one output connected to at least one exhaust channel 38, 42 of the cutoff gases.
  • the unipolar cutoff blocks Bp, Ba1, Ba2, Ba3 are intended to be driven simultaneously, and are coupled for this purpose by at least one drive rod 30.
  • the drive rod 30 has a longitudinal axis Y substantially parallel to the axis of rotation Z of the movable contact bridge.
  • a control mechanism 8 of the cutoff blocks is positioned on the main cutoff block Bp.
  • the control mechanism 8 comprises a lever 88 controlling the displacement of the drive rod 30 by means of links 50. As shown in FIGS. Figures 6A, 6B said links transmit a control force Ft on the drive rod 30.
  • the driving rod 30 passes through the bars 26 of the breaking blocks Bp, Ba1, Ba2, Ba3 via orifices 32.
  • a single drive rod 30 is used.
  • Each housing portion 12 comprises a hole 34 in the shape of an arc of a circle allowing at least the displacement of the drive rod 30 passing through it between the current flow position and the open position.
  • each part of the housing 12 is molded with internal arrangements allowing a relatively stable positioning of the various elements making up the cut-off mechanism 20, in particular two symmetrical housings for each of the cut-off chambers 24, and a circular central recess allowing the setting place of the Bar 26.
  • the cut-off device 600 comprises means for compensating the displacement of the drive rod 30.
  • the compensation means comprise a stop 60 against which the drive rod 30 bears in the closed position. .
  • the positioning of the stop 60 is made so as to limit locally to the level of the first auxiliary block breaking Ba1 the displacement of said drive rod 30.
  • the abutment tends to apply a compensating force Fr capable of generating a rotation torque Cr on the drive rod 30 so that the longitudinal axis Y of said rod does not pivot at the end of displacement and in particular when the movable contact bridge 22 is in a closed position of the contacts.
  • the longitudinal axis Y of the drive rod 30 is kept parallel to the axis of rotation Z of the rotary bar.
  • the stop 60 is preferably positioned at one end of the arc forming the orifice 34 so as to reduce the length of the arc of the circle and the angular displacement of said rod.
  • the stop 60 is positioned in the first auxiliary block breaking Ba1. In other words, the positioning of the stop inside the orifice 34 makes it possible to reduce the stroke of the drive rod 30 moving inside said orifice.
  • the stop 60 is positioned on an outer flange 70 of the cut-off device, said flange 70 being positioned against an outer wall of the housing 12 of the first auxiliary block breaking unit Ba1 cutoff unit.
  • the stop is rigid and is height adjustable.
  • the stop may comprise a threaded rod.
  • the threaded rod is intended to collaborate with a threaded zone positioned on the flange or on the outer wall of the housing 12 of said cutoff unit.
  • the stop comprises a deformable means such as in particular a spring.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (8)

  1. Abschalteinrichtung (600), umfassend
    - einen einpoligen Hauptschaltblock (Bp) mit einem darin montierten Antriebsmechanismus (8) und mindestens einen ersten einpoligen Hilfsschaltblock (Ba1), welche Schaltblöcke in Querrichtung aneinandergereiht sind und jeweils
    - eine drehbar gelagerte Welle (26), die mit einer, drehwirksam um eine Drehachse (Z) geführten beweglichen Kontaktbrücke (22) verbunden ist, sowie
    - zwei feststehende Kontakte (41, 51) umfassen, die mit der genannten beweglichen Kontaktbrücke zusammenwirken und jeweils mit einem Stromzuführungsleiter (4, 5) verbunden sind,
    wobei der Antriebsmechanismus (8) der Schaltblöcke (Bp, Ba1, Ba2, Ba3) einen Schaltknebel (88) umfasst, der mindestens eine durch die Wellen (26) geführte Antriebsstange (30) beaufschlagt, und eine Winkelverschiebung der genannten, mindestens einfach vorhandenen Antriebsstange (30) eine entsprechende Verschiebung der beweglichen Kontaktbrücke 22 zwischen einer Ausschaltstellung und einer Einschaltstellung der Kontakte bewirkt,
    welche Einrichtung dadurch gekennzeichnet ist, dass sie Kompensationsmittel mit einem zugehörigen Anschlag (60) umfasst, gegen den die Antriebsstange (30) in der Einschaltstellung in Anlage gelangt, derart dass
    - die Verschiebung der genannten Antriebsstange (30) im Bereich des ersten Hilfsschaltblocks (Ba1) örtlich begrenzt wird und
    - die Antriebsstange mit einem Drehmoment beaufschlagt wird, um sie parallel zur Drehachse (Z) zu halten.
  2. Abschalteinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der genannte, mindestens einfach vorhandene Hilfsschaltblock (Ba1) ein Gehäuse (12) mit einer darin ausgebildeten, halbkreisförmigen Öffnung (34) umfasst, in der sich die Antriebsstange (30) zwischen der Einschaltstellung und der Ausschaltstellung verschiebt, wobei der Anschlag (60) so angeordnet ist, dass die Kreisbogenlänge und damit die Winkelverschiebung der genannten Stange im Inneren der genannten Öffnung (34) verringert werden.
  3. Abschalteinrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Anschlag (60) im ersten einpoligen Schaltblock (Ba1) an einem Ende des Kreisbogens der Öffnung (34) angeordnet ist, derart dass der Hub der in der Öffnung (34) verschobenen Antriebsstange (30) verringert wird.
  4. Abschalteinrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Anschlag (60) an einem äußeren Seitenschild (70) der Abschalteinrichtung (600) angeordnet ist, welches Seitenschild (70) auf einer Außenwand des Gehäuses (12) des ersten einpoligen Schaltblocks (Ba1) montiert ist.
  5. Abschalteinrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie drei einpolige Hilfsschaltblöcke (Ba1, Ba2, Ba3) umfasst, die in Querrichtung aneinandergereiht sind, wobei der erste Hilfsschaltblock (Ba1) von den beiden anderen Hilfsschaltblöcken (Ba2, Ba3) durch den Hauptschaltblock (Bp) mit dem darin montierten Antriebsmechanismus (8) für die genannten Blöcke getrennt ist.
  6. Abschalteinrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Anschlag (60) biegesteif ausgebildet ist und in der Höhe verstellt werden kann.
  7. Abschalteinrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Anschlag (60) ein verformbares Element umfasst.
  8. Abschalteinrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Anschlag (60) eine Feder umfasst.
EP11354062.9A 2010-12-13 2011-11-07 Abschaltungsvorrichtung mit mehreren einpoligen Abschaltungsblocks und nur einem Betätigungsmechanismus dieser Blocks Active EP2463884B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11354062T PL2463884T3 (pl) 2010-12-13 2011-11-07 Urządzenie przerywające posiadające wiele jednobiegunowych bloków przerywających i zawierające pojedynczy mechanizm do uruchamiania wspomnianych bloków

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1004834A FR2968828B1 (fr) 2010-12-13 2010-12-13 Dispositif de coupure ayant plusieurs blocs de coupure unipolaire et comportant un seul mecanisme d'actionnement desdits blocs

Publications (2)

Publication Number Publication Date
EP2463884A1 EP2463884A1 (de) 2012-06-13
EP2463884B1 true EP2463884B1 (de) 2015-01-14

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EP11354062.9A Active EP2463884B1 (de) 2010-12-13 2011-11-07 Abschaltungsvorrichtung mit mehreren einpoligen Abschaltungsblocks und nur einem Betätigungsmechanismus dieser Blocks

Country Status (11)

Country Link
US (1) US8664549B2 (de)
EP (1) EP2463884B1 (de)
JP (1) JP5832882B2 (de)
KR (1) KR101842717B1 (de)
CN (1) CN102568868B (de)
BR (1) BRPI1106774B1 (de)
ES (1) ES2534764T3 (de)
FR (1) FR2968828B1 (de)
PL (1) PL2463884T3 (de)
RU (1) RU2572519C2 (de)
ZA (1) ZA201108528B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8686304B2 (en) * 2011-12-07 2014-04-01 Eaton Corporation Electrical switching apparatus including two poles and a single operating handle
KR200484495Y1 (ko) * 2014-03-31 2017-09-12 엘에스산전 주식회사 차단기
CN106876221B (zh) * 2015-12-10 2018-10-12 悦动智能电器有限公司 一种带有光电传感器的断路器操作机构
JP2021077498A (ja) * 2019-11-07 2021-05-20 河村電器産業株式会社 回路遮断器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU613415A1 (ru) * 1974-12-02 1978-06-30 Предприятие П/Я А-7809 Вакуумный коммутационный аппарат
FR2683089B1 (fr) 1991-10-29 1993-12-31 Merlin Gerin Mecanisme de manóoeuvre pour disjoncteur tetrapolaire.
US6194983B1 (en) * 1999-08-30 2001-02-27 Eaton Corporation Molded case circuit breaker with current flow indicating handle mechanism
US6317018B1 (en) 1999-10-26 2001-11-13 General Electric Company Circuit breaker mechanism
ITMI20012325A1 (it) * 2001-11-06 2003-05-06 Abb Service Srl Interruttore di bassa tensione
ITBG20050024A1 (it) * 2005-05-13 2006-11-14 Abb Service Srl Interruttore installabile secondo diverse configurazioni operative
KR100662752B1 (ko) * 2005-10-04 2007-01-02 엘에스산전 주식회사 다극 배선용 차단기
KR100689324B1 (ko) * 2005-10-05 2007-03-08 엘에스산전 주식회사 다극 배선용 차단기
US7800007B2 (en) * 2007-06-26 2010-09-21 General Electric Company Circuit breaker subassembly apparatus
KR100988100B1 (ko) * 2008-07-25 2010-10-18 엘에스산전 주식회사 배선용 차단기

Also Published As

Publication number Publication date
ES2534764T3 (es) 2015-04-28
FR2968828A1 (fr) 2012-06-15
ZA201108528B (en) 2012-07-25
KR101842717B1 (ko) 2018-03-27
FR2968828B1 (fr) 2012-12-21
BRPI1106774B1 (pt) 2020-03-17
BRPI1106774A2 (pt) 2013-05-28
EP2463884A1 (de) 2012-06-13
US8664549B2 (en) 2014-03-04
JP5832882B2 (ja) 2015-12-16
CN102568868A (zh) 2012-07-11
RU2011150481A (ru) 2013-06-20
RU2572519C2 (ru) 2016-01-20
PL2463884T3 (pl) 2015-06-30
KR20120065942A (ko) 2012-06-21
US20120145520A1 (en) 2012-06-14
CN102568868B (zh) 2016-03-02
JP2012129205A (ja) 2012-07-05

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