EP2565893A1 - Mobiler Kontaktschlitten und Gerät zur Stromunterbrechung, das mit einem solchen Kontaktschlitten ausgestattet ist - Google Patents

Mobiler Kontaktschlitten und Gerät zur Stromunterbrechung, das mit einem solchen Kontaktschlitten ausgestattet ist Download PDF

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Publication number
EP2565893A1
EP2565893A1 EP12360062A EP12360062A EP2565893A1 EP 2565893 A1 EP2565893 A1 EP 2565893A1 EP 12360062 A EP12360062 A EP 12360062A EP 12360062 A EP12360062 A EP 12360062A EP 2565893 A1 EP2565893 A1 EP 2565893A1
Authority
EP
European Patent Office
Prior art keywords
carriage
insulating support
movable contact
housing
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
EP12360062A
Other languages
English (en)
French (fr)
Other versions
EP2565893B1 (de
Inventor
Marc Serpinet
Yves Trichard
Arnaud Marchal
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.)
Socomec SA
Original Assignee
Socomec 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 Socomec SA filed Critical Socomec SA
Publication of EP2565893A1 publication Critical patent/EP2565893A1/de
Application granted granted Critical
Publication of EP2565893B1 publication Critical patent/EP2565893B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0066—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2083—Bridging contact surfaces directed at an oblique angle with respect to the movement of the bridge
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel

Definitions

  • the present invention relates to a mobile contact trolley for an electrical breaking device, said trolley having at least one housing arranged to receive a movable contact associated with a return member, and said trolley being intended to be coupled to an actuating mechanism belonging to said apparatus.
  • the invention also relates to an electrical switching device provided with a control module associated with at least one cut-off module corresponding to a phase of an electrical network, this cut-off module including at least one moving contact associated with at least one pair of fixed contacts, said movable contact being carried by a carriage coupled to an actuating mechanism controlled by said control module to be moved between at least one triggered position in which the movable contact is moved away from the fixed contacts and the electrical circuit is open, and an engaged position in which the movable contact bears against the fixed contacts and the electrical circuit is closed.
  • the movable contacts are arranged on or carried by a carriage.
  • This carriage is generally made of a single molded or injected part, made of synthetic or composite material, and serves to simultaneously operate the movable contacts of the different breaking modules fitted to the same device. cut according to the number of phases of the electrical network.
  • the set of constraints experienced by the truck such as heating, permanent mechanical forces, occasional mechanical forces of high intensity, etc. inevitably lead to deformation or even breakage of the truck. Maneuvering several phases from the same mobile carriage also poses insulation problems between the phases. These different constraints limit the technical performance of such a truck.
  • the present invention aims at overcoming these disadvantages by proposing a new design of a mobile contact trolley that can equip any type of electrical breaking device in which the movable contacts are closed by pressure on the fixed contacts, this trolley being arranged to support, without deformation, both permanent mechanical stresses under conditions of high temperature, for example of the order of 100 ° C, and exceptional mechanical forces, particularly in the case of welding of the contact areas, in order to increase the electrodynamic and mechanical endurance of the electric switchgear equipped with such a truck.
  • the invention relates to a carriage of the type indicated in the preamble, characterized in that it comprises at least one insulating support provided with said housing and at least one supporting structure encircling said insulating support to form around it a recovery belt. loads.
  • the supporting structure advantageously comprises at least one connecting piece intended to couple said carriage to the actuating mechanism belonging to said apparatus, this connecting piece preferably being positioned in a front part of said insulating support and traversing said housing transversely so as to to be resting on the movable contact opposite its return member, when said movable contact is mounted in said carriage.
  • the supporting structure further comprises a metal profile extending on the lateral sides and at the rear of said insulating support and the connecting piece comprises at least one metal axis passing through said insulating support and the lateral ends. said metal section.
  • the insulating support may comprise at least two superimposed parts, including a body in which is housed said movable contact and a base in which is housed at least in part said return member, said housing extending from said body to said sole.
  • the carriage comprises a plurality of housings arranged in parallel to receive a plurality of movable contacts, isolated from each other, these housings being able to have different depths for shifting said mobile contacts in space.
  • the housings are shifted two by two symmetrically with respect to said median axis to form stages.
  • the invention relates to a cutting device of the kind indicated in the preamble, characterized in that said carriage comprises at least one insulating support comprising said housing and at least one supporting structure encircling said insulating support to form around it a load taking belt, as defined above.
  • the electrical switching device 1 referred to in the invention usually consists of a control module 2 associated with one or more cutoff modules 3 each corresponding to a phase of an electrical network.
  • the device 1 is a three-phase device and comprises three cut-off modules 3.
  • Each cut-off module 3 comprises, in a known manner, an insulating housing 30 inside which at least two fixed contacts 4, forming a pair, extended outside said housing by connection terminals 40, and at least one movable contact 5 carried by a carriage 8 coupled to an actuating mechanism 6 controlled by the control module 2 to be moved between at least a triggered position in which it is away from the fixed contacts and the electrical circuit is open, and an engaged position in which it bears against the fixed contacts and the electrical circuit is closed.
  • the control module 2 can be operated manually by a handle 20 and / or automatically by a motor (not shown).
  • the cut-off device 1 comprises in the example shown fractionating chambers 7 arranged above the fixed contacts 4 and the movable contact 5 to capture, stretch, cool and then extinguish the electric arc generated by the current at each change of state of said apparatus.
  • This switching device 1 must be able to set and cut off so-called normal or fault currents from 0 to 10In, where In is the value of the nominal current that can pass through the device at all times. This device must also be able to establish, and if necessary cut, short-circuit currents whose value can reach 100 to 300 times the rated current In, without deformation or breaking of the carriage 8.
  • the fixed contacts 4 and the movable contact 5 are arranged to form an omega-shaped current loop, symmetrical with respect to a median axis A coinciding with the axis of displacement Fd of the moving contact 5, in which the so-called Laplace forces, also called compensation forces Fc, generated by the current flowing in the current loop.
  • the conductive parts forming the fixed contacts 4 are rigidly fixed to the housing 30, folded approximately S, arranged in opposition and separated by a free median space.
  • the conductive part forming the movable contact 5 has a width greater than the free space between the two fixed contacts 4 for, in the engaged position, to be pressed under pressure against the fixed contacts 4.
  • These conductive parts each offer a contact zone C located in a plane inclined with respect to the median axis A.
  • FIGS. 3 and 5 illustrate two alternative embodiments of a set of movable contacts, including a first assembly 5 which has five movable contacts 5A-C and corresponds to a 250A rating with a peak value of 50 to 75 kA, and a second set 5 ' which has twelve movable contacts 5A-F and corresponds to a rating of 1600A with a peak value of 120 to 150 kA.
  • the assemblies 5, 5 ' are symmetrical with respect to the central axis A of the breaking device 1 and comprise one or two movable contact (s) central (s) 5A different (s) other 5B movable contacts -F lateral.
  • the central movable contact 5A is centered on the median axis A and in the whole of the figure 4 , the two central movable contacts 5A are symmetrical to the central axis A.
  • Each central movable contact 5A is larger and / or positioned in advance of the others to be the first to dock the fixed contacts 4 in order to establish the current, and the last to leave the fixed contacts 4 to turn off the power. It is he who undergoes the electric arc and therefore plays the role of spark arrester.
  • the lateral movable contacts 5A-C and 5A-F each consist of a conductive part in the form of a metal strip, symmetrical with respect to the median axis A and provided laterally with two contact zones C. They may have identical dimensions or not. They are at least identical two by two symmetrically with respect to the median axis A.
  • the carriage 8 comprises a plurality of separate and parallel housings 80 arranged to receive the movable contacts 5A-C, 5A-F by isolating them from each other.
  • Each movable contact is associated, in its housing 80, with a return member 65, in the form of, for example, a compression spring, arranged to exert a determined pressing force on the movable contact when it is pressed against the fixed contacts. 4 in the engaged position.
  • the housings 80 have different depths so that the lateral movable contacts 5B-C, 5B-F are offset two by two with respect to the prominent central movable contact 5A and form stages E1, E2, etc.
  • the race from one floor to another may be equal or not.
  • the carriage 8 comprises an insulating support 81 in which are provided the housing 80 and a supporting structure 9 encircling the insulating support 81 to form around it a belt of recovery of loads.
  • the insulating support 81 consists of two superimposed parts defining a body 82 in which the movable contacts 5A-C, 5A-F are housed, isolated from each other by the partitions of the housings 80, with a freedom axial movement, and a base 83 at the bottom of which the return members 65 are supported.
  • the housings 80 extend between the base 83 and the body 82 and open out from said body laterally and symmetrically with respect to the central axis A to allow the contact zones C to emerge.
  • the central housing 80 extends to the front insulating support 81 given the boss 50 extending the central movable contact 5A to serve as a spark arrester.
  • the body 82 and the base 83 are held together by said supporting structure 9.
  • any other embodiment of said insulating support 81 to obtain the same functionality is possible.
  • the bearing structure 9 comprises, in the example shown, a flat profile 90, preferably metal, extending on the lateral sides and at the rear of the insulating support 81 like a belt. It further comprises a connecting piece 91, in the form of a preferably metal axis, passing through the insulating support 81 at the front and mechanically connected to the lateral ends of the profile 90 to close the belt.
  • This connecting piece 91 passes through at least one of the housings 80 transversely and preferably the central housing, to bear against at least and preferably the central movable contact 5A, opposite its return member 65.
  • the actuating mechanism 6 of the set 5, 5 'of movable contacts comprises a drive shaft 60 rotatably connected to the handle 20 by an angle gear (not visible) and / or controlled by a second member (not shown) fitted into the square bore 61.
  • a system for converting the rotational movement of the drive shaft 60 into a translation movement makes it possible to move the carriage 8 in the median axis A
  • This motion transformation system comprises a pair of articulated links 62, 63, but any other equivalent means is conceivable.
  • the first link 62 is integral with the drive shaft 60 and rotatably coupled to the second link 63 by a first link B1.
  • the second connecting rod 63 is coupled in rotation with the carriage 8 by a second articulation B2 defined by the connecting piece 91.
  • the carriage 8 is guided in translation relative to the housing 30 by means of rails, ribs or any other equivalent means , in which circulate the projecting ends of the connecting piece 91 forming the articulation B2 or any other complementary shape.
  • the invention achieves the goals set, including the design of the mobile contact carrier trolley to separate the insulation function of the movable contacts, the mechanical strength function of the truck, and the to dedicate to two different but complementary pieces, adapted as well in the choice of materials as in their form to the assigned function.
  • the result obtained is an increase in the technical characteristics of such a truck and its life, contributing favorably to extend the endurance of the electrical breaking device.
  • the present invention is not limited to the embodiments described but extends to any modification and variation obvious to a person skilled in the art while remaining within the scope of protection defined in the appended claims.
  • the carriage of the invention has been described with reference to a multi-contact mobile version, but may be provided for a single contact mobile version. In all cases, it is necessary to provide a trolley per cut-off module or per phase.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Slide Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
EP20120360062 2011-09-01 2012-08-09 Mobiler Kontaktschlitten und Gerät zur Stromunterbrechung, das mit einem solchen Kontaktschlitten ausgestattet ist Active EP2565893B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1157714A FR2979743B1 (fr) 2011-09-01 2011-09-01 Chariot porte contact mobile et appareil de coupure electrique equipe d'un tel chariot

Publications (2)

Publication Number Publication Date
EP2565893A1 true EP2565893A1 (de) 2013-03-06
EP2565893B1 EP2565893B1 (de) 2015-04-08

Family

ID=46727158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120360062 Active EP2565893B1 (de) 2011-09-01 2012-08-09 Mobiler Kontaktschlitten und Gerät zur Stromunterbrechung, das mit einem solchen Kontaktschlitten ausgestattet ist

Country Status (3)

Country Link
US (1) US8993908B2 (de)
EP (1) EP2565893B1 (de)
FR (1) FR2979743B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE661103A (de) * 1964-03-13 1965-07-01
FR2188292A1 (de) * 1972-06-12 1974-01-18 Bassani Spa
GB2096396A (en) * 1981-04-02 1982-10-13 Sace Spa Electric switch
FR2516699A1 (fr) * 1981-11-19 1983-05-20 Technoelectric Srl Structure pour disjoncteur comportant deux boitiers a commande manuelle
FR2756412A1 (fr) * 1996-11-25 1998-05-29 Socomec Sa Appareil de coupure tel qu'un commutateur-inverseur pour une installation electrique

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741311C (de) 1939-07-21 1943-11-09 Aeg Schalteinrichtung fuer mit verhaeltnismaessig grosser Schalthaeufigkeit, insbesondere beim Widerstandsschweissen kurzzeitig zu schliessende Stromkreise
US2356040A (en) 1942-07-31 1944-08-15 Westinghouse Electric & Mfg Co Arc control device
FR2383513A1 (fr) 1977-03-09 1978-10-06 Merlin Gerin Dispositif de contacts pour un appareil electrique de fort calibre
FR2524195A1 (fr) 1982-03-26 1983-09-30 Ferraz & Cie Lucien Dispositif d'interrupteur electrique notamment pour court-circuiter les cuves d'electrolyse
US4633207A (en) 1985-04-01 1986-12-30 Siemens Energy & Automation, Inc. Cam following bridge contact carrier for a current limiting circuit breaker
FR2638017B1 (fr) 1988-10-17 1990-11-30 Merlin Gerin Interrupteur electrique multipolaire a basse tension pour calibres eleves
US5130504A (en) 1990-08-29 1992-07-14 Eaton Corporation Bi-directional direct current switching apparatus having bifurcated arc runners extending into separate arc extinguishing chambers
JP3250650B2 (ja) * 1996-07-09 2002-01-28 富士電機株式会社 回路遮断器
DE19904930C2 (de) 1999-02-06 2000-12-14 Felten & Guilleaume Ag Schalter für den Einsatz in SF6-Mittelspannungsschaltanlagen
FR2798515B1 (fr) 1999-09-15 2001-11-09 Schneider Electric Ind Sa Pince de connexion en aluminium pour un appareillage electrique, notamment un fusible
FR2818434B1 (fr) 2000-12-15 2003-07-04 Socomec Sa Appareil de coupure electrique pour installation electrique
US6563407B2 (en) 2001-08-21 2003-05-13 Siemens Energy & Automation, Inc. Pivot joint for a movable contact arm in a molded case circuit breaker
AT414318B (de) * 2004-01-19 2007-02-15 Moeller Gebaeudeautomation Kg Elektromechanischer schalter
KR100536106B1 (ko) 2005-06-22 2005-12-14 델타이지씨에스(주) 고주파 오동작 방지용 전자개폐장치와 그를 이용한 누전차단장치
FR2891395B1 (fr) 2005-09-28 2007-11-30 Socomec Sa Sa Module de coupure pour appareil electrique et appareil electrique equipe d'un tel module
US7569784B2 (en) * 2006-10-13 2009-08-04 Eaton Corporation Electrical switching apparatus, and housing and integral pole shaft bearing assembly therefor
US8130064B2 (en) 2008-08-01 2012-03-06 Tyco Electronics Corporation Switching device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE661103A (de) * 1964-03-13 1965-07-01
FR2188292A1 (de) * 1972-06-12 1974-01-18 Bassani Spa
GB2096396A (en) * 1981-04-02 1982-10-13 Sace Spa Electric switch
FR2516699A1 (fr) * 1981-11-19 1983-05-20 Technoelectric Srl Structure pour disjoncteur comportant deux boitiers a commande manuelle
FR2756412A1 (fr) * 1996-11-25 1998-05-29 Socomec Sa Appareil de coupure tel qu'un commutateur-inverseur pour une installation electrique

Also Published As

Publication number Publication date
FR2979743A1 (fr) 2013-03-08
FR2979743B1 (fr) 2013-08-30
EP2565893B1 (de) 2015-04-08
US20130056337A1 (en) 2013-03-07
US8993908B2 (en) 2015-03-31

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