EP2192605A1 - Trennvorrichtung eines elektrischen Schaltkreises und Stromverteilungskasten, der mit einer solchen Trennvorrichtung ausgestattet ist - Google Patents

Trennvorrichtung eines elektrischen Schaltkreises und Stromverteilungskasten, der mit einer solchen Trennvorrichtung ausgestattet ist Download PDF

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Publication number
EP2192605A1
EP2192605A1 EP09306137A EP09306137A EP2192605A1 EP 2192605 A1 EP2192605 A1 EP 2192605A1 EP 09306137 A EP09306137 A EP 09306137A EP 09306137 A EP09306137 A EP 09306137A EP 2192605 A1 EP2192605 A1 EP 2192605A1
Authority
EP
European Patent Office
Prior art keywords
disconnecting
terminals
closed position
disconnecting member
housing
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
EP09306137A
Other languages
English (en)
French (fr)
Other versions
EP2192605B1 (de
Inventor
Jean-Marc Durand
Jérémy Delteil
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.)
Alstom Transport SA
Original Assignee
Alstom Transport 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 Alstom Transport SA filed Critical Alstom Transport SA
Publication of EP2192605A1 publication Critical patent/EP2192605A1/de
Application granted granted Critical
Publication of EP2192605B1 publication Critical patent/EP2192605B1/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
    • H01H51/00—Electromagnetic relays
    • H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/14—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch
    • H01H31/24—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with rectilinearly-movable bridging contact
    • 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

Definitions

  • the invention also relates to a system for supplying at least one electrically conductive rail capable of supplying an electric current to a railway vehicle, comprising a supply circuit of the conducting rail, at least one disconnecting device of the supply circuit , and a circuit for electrically grounding the conductive rail when the supply circuit is cut.
  • the disconnecting devices of an electrical circuit are used to open or close a link of this electrical circuit, and allow to ensure a minimum physical distance between the first disconnecting member and the corresponding disconnection terminals when the circuit is open.
  • the disconnecting devices are, for example, used in electrical power distribution cabinets for railway vehicles.
  • the first disconnecting member is a movable bar of insulating material provided with electrical contacts.
  • the automatic control means comprise an electromagnetic suction cup comprising a metal plate integral in translation with a movable cutting bar.
  • the manual reset control device is a mounted lever mobile in rotation about an axis integral with the housing at one of its ends and connected to the movable bar.
  • the object of the invention is to propose a device for disconnecting an electrical circuit making it possible to reduce the risks of electrocution in contact with the main disconnecting terminals in the open position of the first disconnecting member.
  • the subject of the invention is a disconnecting device of the aforementioned type, characterized in that it comprises, in the housing, two secondary disconnecting terminals and a second disconnecting member movable between an open position and a disconnecting position. closing position of a second electrical connection between the two secondary isolating terminals, the second disconnecting member being coupled to the first disconnecting member, the switching of the first disconnecting member causing the switching of the second disconnecting member.
  • the invention also relates to a feeding system of the aforementioned type characterized in that the sectioning device is as defined above.
  • FIG. 1 On the figure 1 is shown a system 1 for feeding two electrically conductive rails 2A, interconnected by an insulating segment 2B.
  • the electrically conductive rails 2A are capable of supplying an electric current to a railway vehicle 3A via an electrically conductive pad 3B.
  • the supply system 1 comprises a circuit 4 for supplying a conducting rail 2A, and a circuit 5 for electrically grounding 6 of the other conducting rail 2A or of the two conducting rails 2A when no conducting rail 2A is powered by the supply circuit 4.
  • the supply circuit 4 comprises a first switch 7 for each conducting rail 2A, and a current source 8.
  • the grounding circuit 5 comprises a second switch 9A for each conducting rail 2A, and a fuse 9B for connecting with the electric ground 6.
  • the supply circuit 4 and the grounding circuit 5 comprise common connection points 9C.
  • the supply system 1 comprises a device 10 for disconnecting the supply circuit 4.
  • the sectioning device 10 illustrated on the figure 2 , comprises, in a housing 12, a connection module 14 and an actuator 16 adapted to control the switching of the connection module 14 from a first state to a second state.
  • the first state is represented on the figure 2
  • the second state is represented on the figure 3 .
  • the housing 12 comprises a base plate 17 intended to be fixed on a support, not shown.
  • the connection module 14 comprises two main disconnecting terminals 18, two secondary disconnecting terminals 20 and an additional terminal 22.
  • the supply circuit 4 is able to connect one of the main disconnecting terminals 18 to the first two switches 7 and the other main terminal 18 to the current source 8.
  • the grounding circuit 5 is able to connect on the one hand each conducting rail 2A and each second switch 9A to a terminal corresponding secondary 20, and the second terminal 22 to the electrical earth 6.
  • Each terminal 18, 20, 22 is connected by an electric cable 23 for connection with the corresponding circuit 4, 5.
  • the connecting cables 23 are, for example, provided at one end with a lug, not shown, clamped against a terminal 18, 20, 22 by means of a screw 24 and a nut 26. .
  • each main terminal 18 is integral with a respective first contact 28, and each secondary terminal 20 has an end forming a respective second contact 30.
  • the two main terminals 18 and the first two contacts 28 are arranged symmetrically with respect to an axis of symmetry XX 'perpendicular to the base plate 17.
  • the two secondary terminals 20 and the second two contacts 30 are symmetrical with respect to the X-X 'axis.
  • the second contacts 30 are coplanar.
  • a moving assembly 32 is slidably movable along the X-X 'axis between the first fixed contacts 28 on the one hand and the second fixed contacts 30 on the other hand, under the control of the actuator 16.
  • the moving element 32 comprises an insulating body 34 carrying a first disconnecting conductive plate 36 and a second disconnecting conductive plate 38. More specifically, the first plate 36 is coupled to the insulating body 34 by a first contact spring 40, and the second plate 38 is coupled to the insulating body 34 by a second contact spring 42. The second plate 38 is electrically connected to the auxiliary terminal 22 via a conductive braid 43.
  • the first plate 36 and the second plate 38 extend substantially transversely to the axis X-X '.
  • Each plate 36, 38 is axially movable with respect to the insulating body 34.
  • the plates 36, 38 are movable inside rectangular slots extending along the axis X-X 'and formed in the insulating body 34.
  • the first plate 36 is movable relative to the two main terminals 18, between a closed position and an open position of a first electrical connection between the two main terminals 18.
  • the first plate 36 has a core 44 extended in each of its ends by an inclined flange 46.
  • Each flange 46 of the first plate is secured to a third contact 48 respectively.
  • Each third contact 48 is clean, in the closed position of the first plate 36, to bear against a respective first contact 28 and thus ensure the closure of the first electrical connection between the two main terminals 18, as shown in FIG. figure 2 .
  • Each third contact 48 is intended, in the open position of the first plate 36, to be away from the respective first contact 28 and thus ensure the opening of the first electrical connection, as shown in FIG. figure 3 .
  • the second conductive plate 38 is movable relative to the two secondary terminals 20, between an open position and a closed position of a second electrical connection between the two secondary terminals 20.
  • the second plate 38 is substantially flat, and present on one side two areas forming two respective fourth contacts 50.
  • the fourth contacts are coplanar.
  • Each fourth contact 50 is intended, in the open position of the second plate 38, to be away from a respective second contact 30 and thus ensure the opening of the second electrical connection, as shown in FIG. figure 2 .
  • Each fourth contact 50 is clean, in the closed position of the second plate 38, to bear against a respective second contact 30 and thus ensure the closure of the second electrical connection, as shown in FIG. figure 3 .
  • the first contact spring 40 is able to elastically bias the first plate 36 towards the main terminals 18 to ensure contact between the third contacts 48 and the first contacts 28 respectively.
  • the second contact spring 42 is adapted to resiliently bias the second plate 38 against the secondary terminals 20 to ensure contact between the fourth contacts 50 and the respective second contacts 30.
  • the closing position of the first plate 36 and the opening position of the second plate 38 correspond to the first state of the connection module 14, illustrated in FIG. figure 2 .
  • the opening position of the first plate 36 and the closing position of the second plate 38 correspond to the second state of the connection module 14, illustrated in FIG. figure 3 .
  • the moving element 32 At its end facing the actuator 16, the moving element 32 has a transverse abutment surface 52.
  • a second elastic spring 54 is applied between the abutment surface 52 and a bearing surface 56 of an integral enclosure 58 of the case.
  • the abutment surface 52 is extended at each of its ends by a support arm 60.
  • the mobile assembly 32 comprises a rod 62 for manual control of rearming the first plate 36 from its open position to its closed position.
  • the control rod 62 extends substantially along the axis X-X 'and is axially movable through an opening 64 formed in the housing 12.
  • the control rod 62 and the opening 64 are arranged between the two secondary terminals 20.
  • the actuator 16 comprises an electromagnetic coil 66 held fixed in the enclosure 58, and a magnetized metal plate 68 slidably mounted along the axis XX 'inside the enclosure 58.
  • the electromagnetic coil 66 and the magnetic plate 68 are centered along the X-X 'axis.
  • the coil 66 is in the form of a cylinder of axis X-X ', and is capable of exerting a magnetic attraction force directed along the axis X-X'.
  • the coil 66 is connected by a control circuit to a suitable voltage source 70 via a switch 72.
  • the control circuit is connected externally to the disconnecting device 10 by control terminals 74 fixed to the housing 12.
  • the magnetized plate 68 is integral with a shaft 76 axially connected to the insulating body 34 of the moving equipment.
  • the return spring 54 is wound around the shaft 76.
  • the return spring 54 is disposed between the moving assembly 32 and the enclosure 58 to bias the moving assembly 32 away from the actuator 16 that is to say in a position in which the second conductive plate 38 is in contact with the secondary terminals 20. More precisely, the spring 54 is kept compressed between the enclosure 58 and the transverse abutment surface 52.
  • the spring 54 is able to exert a restoring force on the magnetized plate 68.
  • the restoring force is directed along the axis X-X '.
  • the restoring force of the spring 54 is of a lower intensity than the force of attraction exerted by the magnet of the plate 68 when the connection module 14 is in its first state, that is to say when the magnetized plate 68 is in contact with the electromagnetic coil 66.
  • the restoring force of the spring 54 is of greater intensity than the force of attraction exerted by the magnet of the plate 68 when the connection 14 is in its second state, i.e. when the magnet plate 68 is at a predetermined distance from the coil 66.
  • the device 10 comprises a sensor 80 for reading the position of the first plate 36.
  • the sensor 80 comprises a contact blade 82 movable between a position compressed against one of the two support arms 60 in the closed position of the first plate 36 , and a position released in the open position of the first plate 36.
  • the sensor 80 is able to switch, via a pallet 83, an electrical signal between two output terminals 84, the signal being received in one 86.
  • the switching of the pallet 83 depends on the position of the blade 82, that is to say the position of the first plate 36.
  • the other conducting rail 2A in other words the conductive rail 2A right of the figure 1 , is not powered, the first switch 7 right corresponding to the other rail 2A being open.
  • the other conducting rail 2A is electrically grounded 6 via the grounding circuit 5, the second right switch 9A corresponding to this other rail 2A being closed, as shown in FIG. figure 1 .
  • the other conducting rail 2A in other words the left conducting rail 2A of the figure 1 , is not powered, the first switch 7 left corresponding to the other rail 2A being open.
  • the other conducting rail 2A is electrically grounded 6 via the grounding circuit 5, the second left switch 9A corresponding to this other rail 2A being closed.
  • the conductive pad 3B is no longer in contact with any of the two conducting rails 2A of the figure 1 and the two conducting rails 2A are electrically grounded 6 via the grounding circuit 5, the first switches 7 being open and the second switches 9A corresponding to these conductor rails 2A being closed.
  • the disconnecting device 10 is controlled to cut off the supply circuit 4.
  • the connection module 14 moves from his first state to his second state, as depicted on the figure 3 .
  • the main terminal 18 connected to the first switch 7 is then isolated from the current source 8 by the passage of the first disconnector member 36 from its closed position to its open position and the two common connection points 9C are connected to the electric mass 6 through the passage of the second disconnector member 38 to its closed position.
  • the disconnecting device 10 operates in the following manner.
  • the switch 72 In working position and as illustrated on the figure 2 , the switch 72 is open so that the electromagnetic coil 66 is not powered. Under these conditions, the permanent magnet of the plate 68 exerts a force of attraction on the coil 66 which is fixed in the enclosure 58. In this position of the magnetized plate 68, the spring 54 is compressed and a contacting third contacts 48 of the first plate with the first contacts 28 of the main terminals is provided by means of the first contact spring 40. The second plate 38 is away from the secondary terminals 20 and connected to the electrical ground 6 by via the conductive braid 43 and the terminal 22.
  • the electromagnetic coil 66 When the switch 72 is closed, as illustrated on the figure 3 the electromagnetic coil 66 is energized by a current, which causes the formation of a magnetic field in the coil 66.
  • the magnetic field of the coil 66 opposes the magnetic field of the magnet plate 68, so that the plate The magnet 68 is no longer attracted and held against the coil 66.
  • the return spring 54 biases the moving assembly 32 away from the actuator 16.
  • the connection module 14 is driven by its first state to its second state by the return spring 54, so that the first plate 36 and the second plate 38 switch position.
  • the passage of the first plate 36 from its closed position to its open position causes the predetermined passage of the second plate 38 from its open position to its closed position.
  • the first plate 36 is no longer in the closed position, when the second plate 38 reaches its closed position.
  • a contacting of the fourth contacts 50 of the second plate with the second contacts 30 of the secondary terminals is provided by means of the second contact spring 42.
  • the secondary terminals 20 are electrically connected between they via the second plate 38, and thus connected to the electrical ground 6 via the terminal annex 22 and the conductive braid 43.
  • One of the two main terminals 18 being connected by the circuits 4, 5 to a secondary terminal 20, this main terminal 18 is connected to the electrical ground 6 when the second plate 38 is in its closed position, that is to say in the opening position of the first plate 36.
  • connection module 14 is then maintained in its first state, via the attraction of the magnetized plate 68 against the coil 66.
  • the rod 62 being disposed along the axis X-X 'of displacement of the movable plates 36, 38, the manual reset is facilitated.
  • the power supply system 1 is intended to supply a single electrically conductive rail 2A capable of supplying an electric current to the railway vehicle 3A.
  • a secondary terminal 20 is connected to the electrical ground 6, and the other secondary terminal 20 is connected to the conductive rail 2A.
  • the disconnecting device 10 has no ancillary terminal. The operation is similar to that of the embodiment described above. When the conductive pad 3B of the railway vehicle 3A is in contact with the conducting rail 2A, this rail is fed through the supply circuit 4. The disconnecting device 10 is in the working position, and the connection module 14 is in its first state, as illustrated on the figure 2 .
  • the conductive pad 3B When the rail vehicle 3A has moved away from the conducting rail 2A, the conductive pad 3B is no longer in contact with the conducting rail 2A, and the conducting rail 2A is electrically grounded 6 via the setting circuit to ground 5, the first switch 7 being open and the second switch 9A being closed.
  • the disconnecting device 10 is controlled to cut off the supply circuit 4.
  • the connection module 14 goes from its first state in its second state, as shown on the figure 3 .
  • the main terminal 18 connected to the first switch 7 is then isolated from the current source 8 by the passage of the first disconnector member 36 from its closed position to its open position and the common connection point 9C is connected to the electric mass 6 through the passage of the second sectioning member 38 to its closed position.
  • the sectioning device allows, automatically and predetermined manner, an electrical grounding of rails. conductors and, in the event of a fault, isolation and electrical grounding of the supply circuit, which reduces the risk of electrocution.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP09306137A 2008-11-28 2009-11-25 Trennvorrichtung eines elektrischen Schaltkreises und Stromverteilungskasten, der mit einer solchen Trennvorrichtung ausgestattet ist Active EP2192605B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0858080A FR2939237B1 (fr) 2008-11-28 2008-11-28 Dispositif de sectionnement d'un circuit electrique et coffret de distribution d'energie electrique comprenant un tel dispositif de sectionnement.

Publications (2)

Publication Number Publication Date
EP2192605A1 true EP2192605A1 (de) 2010-06-02
EP2192605B1 EP2192605B1 (de) 2012-10-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09306137A Active EP2192605B1 (de) 2008-11-28 2009-11-25 Trennvorrichtung eines elektrischen Schaltkreises und Stromverteilungskasten, der mit einer solchen Trennvorrichtung ausgestattet ist

Country Status (4)

Country Link
US (1) US8319587B2 (de)
EP (1) EP2192605B1 (de)
ES (1) ES2396750T3 (de)
FR (1) FR2939237B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3432336A4 (de) * 2016-03-18 2019-02-20 BYD Company Limited Relais
EP3432337A4 (de) * 2016-03-18 2019-02-20 BYD Company Limited Relais

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5134657B2 (ja) * 2010-07-27 2013-01-30 富士電機機器制御株式会社 接点機構及びこれを使用した電磁接触器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742775A1 (de) * 1977-09-20 1979-03-29 Siemens Ag Schalteinrichtung fuer mittelspannungskabelnetze
EP0237296A2 (de) * 1986-03-07 1987-09-16 Eaton Corporation Magnetisch verriegelte und stromempfindliche automatisch entriegelnde Schalteranordnung
GB2207810A (en) * 1987-07-20 1989-02-08 Gen Electric Plc Electric switch
EP0479694A1 (de) * 1990-10-02 1992-04-08 Socomec S.A. Stromverteilungsvorrichtung für die elektrische Energie einer Verteilertafel
GB2357374A (en) * 1999-12-15 2001-06-20 Inertia Switch Ltd Battery cut off switch
DE102007017516B3 (de) * 2007-04-13 2008-04-30 Siemens Ag Herstellungsverfahren für ein elektromagnetisches Schaltgerät mit Trennwänden zwischen Haupt- und Hilfskontakten sowie entsprechend dem Herstellungsverfahren hergestelltes elektromagnetisches Schaltgerät

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211685C2 (de) * 1982-03-30 1984-02-09 Mannesmann AG, 4000 Düsseldorf Schütze zur Steuerung von Elektromotoren
US5198789A (en) * 1991-07-25 1993-03-30 Westinghouse Electric Corp. Logic level electrical interlock device
FR2837616B1 (fr) * 2002-03-19 2004-05-28 Schneider Electric Ind Sa Appareil electrique a actionneur piezoelectrique pilote

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2742775A1 (de) * 1977-09-20 1979-03-29 Siemens Ag Schalteinrichtung fuer mittelspannungskabelnetze
EP0237296A2 (de) * 1986-03-07 1987-09-16 Eaton Corporation Magnetisch verriegelte und stromempfindliche automatisch entriegelnde Schalteranordnung
GB2207810A (en) * 1987-07-20 1989-02-08 Gen Electric Plc Electric switch
EP0479694A1 (de) * 1990-10-02 1992-04-08 Socomec S.A. Stromverteilungsvorrichtung für die elektrische Energie einer Verteilertafel
GB2357374A (en) * 1999-12-15 2001-06-20 Inertia Switch Ltd Battery cut off switch
DE102007017516B3 (de) * 2007-04-13 2008-04-30 Siemens Ag Herstellungsverfahren für ein elektromagnetisches Schaltgerät mit Trennwänden zwischen Haupt- und Hilfskontakten sowie entsprechend dem Herstellungsverfahren hergestelltes elektromagnetisches Schaltgerät

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3432336A4 (de) * 2016-03-18 2019-02-20 BYD Company Limited Relais
EP3432337A4 (de) * 2016-03-18 2019-02-20 BYD Company Limited Relais
US10755882B2 (en) * 2016-03-18 2020-08-25 Byd Company Limited Relay

Also Published As

Publication number Publication date
US20100134223A1 (en) 2010-06-03
ES2396750T3 (es) 2013-02-25
FR2939237A1 (fr) 2010-06-04
US8319587B2 (en) 2012-11-27
FR2939237B1 (fr) 2011-02-11
EP2192605B1 (de) 2012-10-10

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