EP2748831B1 - Commande à levier latéral verrouillable pour un appareil de commutation électrique - Google Patents

Commande à levier latéral verrouillable pour un appareil de commutation électrique Download PDF

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Publication number
EP2748831B1
EP2748831B1 EP12750377.9A EP12750377A EP2748831B1 EP 2748831 B1 EP2748831 B1 EP 2748831B1 EP 12750377 A EP12750377 A EP 12750377A EP 2748831 B1 EP2748831 B1 EP 2748831B1
Authority
EP
European Patent Office
Prior art keywords
handle
switching device
lever
movement
electrical switchgear
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.)
Not-in-force
Application number
EP12750377.9A
Other languages
German (de)
English (en)
Other versions
EP2748831A1 (fr
Inventor
Wolfgang Kutsche
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.)
Eaton Electrical IP GmbH and Co KG
Original Assignee
Eaton Electrical IP GmbH and Co KG
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 Eaton Electrical IP GmbH and Co KG filed Critical Eaton Electrical IP GmbH and Co KG
Priority to EP12750377.9A priority Critical patent/EP2748831B1/fr
Publication of EP2748831A1 publication Critical patent/EP2748831A1/fr
Application granted granted Critical
Publication of EP2748831B1 publication Critical patent/EP2748831B1/fr
Not-in-force 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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/36—Driving mechanisms, i.e. for transmitting driving force to the contacts using belt, chain, or cord
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
    • H01H9/283—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock the part being removable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
    • 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
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever

Definitions

  • the invention relates to a side lever drive of an electrical switching device.
  • Electrical switching devices usually have handles, e.g. in the form of switching knobs or handles, on, with the help of the switching device can be manually switched on or off. For safety reasons, these switchgear must be able to be secured in the OFF position against inadvertent switching on in certain applications. For this purpose, such switching devices usually features that allow to complete the handle by means of one or more U-locks in the OFF position.
  • Such electrical switching devices usually have a mechanical switch lock.
  • the switch lock includes a lever system and switch contacts, at least one of which is movable. To switch on the switch contacts are guided to each other until they touch.
  • Such switching devices include means for applying a contact pressure force. To shut off the contacts must be lifted against this contact pressure force each other.
  • Such switching devices usually have means with which, when switched off, a force is exerted on the switching contacts which keeps them open. These forces only act until the contact system has reached a tipping point during the switching process.
  • the switching device can be switched, that is, if the switching contacts are not blocked, for example by welding, the respective switching movement continues after overcoming the tipping point automatically and driven by the forces from the electric Emerge switching device itself, such as the contact pressure force or holding force until the contact system has reached a stop.
  • a remote drive mechanism is known, with which by means of a flexible cable as a transmission element and a lever which is mounted as a handle outside the cabinet, as well as an operable with the flexible cable coupling element which connects the handle of the electrical switching device with the transmission element, one on the rear wall in Inside a control cabinet mounted switching device can be turned on or off even when the control cabinet is closed from outside the cabinet.
  • an additional locking of the electrical switching device prevents that when the electrical switching device, the cabinet door can be opened and that when the door is open, the electrical switching device can be turned on.
  • the latter function can be bypassed eg for maintenance purposes by trained personnel.
  • the contacts of such switching devices may e.g. weld in the ON position in the event of a fault in the electrical system such that the breaking force of this welding exceeds the force required to deform the remote control elements such as the handle, the transmission element and the coupling element.
  • a similar effect occurs in other than fixed by welding contacts.
  • the handle of the switching device may not be locked in the OFF position.
  • the object of the invention is therefore to provide a side lever drive of a switching contacts containing electrical switching device, in which the handle can be complete only in the OFF position of the switching device.
  • the device for the mechanical remote control of a switching contacts containing electrical switching device includes a handling system with a lever and a handle base, a transmission element and a coupling element, wherein the handle base has a stationary first Absch manyö réelle and the lever via a second Absch manyö réelle, the are arranged so that the bracket of a U-lock can only be passed through both Absch versatilityö réelleen when the lever is in the OFF position, and the electrical switching device further also has a handle, wherein the handle of the switching device for on or Turning off the electrical switching device must be moved to a respective tilting point, and the handle of the switching device in the turn-off after reaching the breakpoint and when disconnecting the switch contacts the switch-off movement driven by a spring emerging from the switching device wherein the handling system has a third closure opening via a closure plate movable relative to the base element of the handling system, the closure plate (150) defining at least one of the closure openings (122, 126) on the handle base (121) or lever (125) the passage of
  • the transmission of the switching movement of the handle on the transmission element via an intermediate element is limited so far that the handle of the switching device can be moved beyond the respective tilting point of the lever system of the switching device, but not to the end position of the handle of the electrical switching device corresponding to the position of the open switch contacts. If the switching device can be switched, the handle of the Switching device from a further switching movement, where it is driven by the contact pressure or holding force.
  • the intermediate element is advantageously connected to the transmission element such that the transmission element can move relative to the intermediate element further in the direction corresponding to the respective switching movement.
  • the locking plate is moved by a first driving member on the transmission element against the force exerted on the Versch40blech and presses it in the non-aligned position with the stationary first Abschandö réelle the base element of the handling system in a position with the fixed first Abschforö réelle the base member the handling system is aligned when the handle of the switching device moves beyond the tipping point of the switching device. On the other hand, if the switching contacts of the switching device are blocked, the handle of the switching device does not move beyond the tipping point. Thus, the transmission element does not move further, whereby the locking plate is not actuated.
  • the locking plate blocks in this case at least the fixed opening arranged on the handle base.
  • the handling system of the remote control is now not lockable.
  • a side lever drive 100 according to the prior art is shown.
  • An electrical switching device 200 (not shown), for example, mounted in a control cabinet (not shown) is connected to the handle 125 of the side lever drive 100, which may be mounted outside of the cabinet, by means of a handling system 120, a flexible cable 110 and a coupling element 140 connected.
  • the handling system 120 includes a handle base 121 in which a first closure opening 122 is fixedly inserted.
  • the lever 125 includes a second Lock opening 126, which is arranged so that the bracket of a U-lock can be passed through the Abschmonyö Maschinenmaschinennen 122, 126 when the lever 125 is in the OFF position.
  • a switch position indicator 123 is mounted so that the position of the lever 125 with respect to this switch position indicator 123, the switching position of the electrical switching device 200 can be read when its switch contacts are not blocked.
  • the switching movement of the lever 125 is transmitted to the flexible cable 110 via an intermediate element 130.
  • the intermediate element 130 has a stationary pivot bearing 131 around which the intermediate element 130 can rotate. Furthermore, the intermediate element has a hinge 132.
  • Electrical switching devices 200 in particular electromechanical switching devices, have in their interior means for applying contact forces and opening forces. These forces must be overcome when switching. Depending on the size of the electrical switching device 200 to be switched, these forces to be overcome are considerable. In addition, frictional forces can occur in the side lever drive 100, which must also be overcome when switching. In order not to let the mechanical forces to be applied to the lever 125 to switch the electrical switching device 200 via the side lever drive 100 be too large, the lever 125 of the side lever drive 100 is usually dimensioned correspondingly large. Thereby, and by the possible elastic deformations of the individual elements 110, 120, 140 of the side lever drive 100, such as e.g.
  • the possible stretching of the flexible cable 110, and the force carrying elements of the electrical apparatus 200 may be possible by applying a corresponding force to the lever 125 to move the lever 125 into the exhibition, although the switching contacts of the electrical apparatus 200 e.g. are blocked by welding and therefore the current flow through the electrical switching device 200 is still not interrupted.
  • Fig. 2 is the perspective view of a side lever drive 100 and an electrical switching device 200 according to the invention in the OFF position.
  • the lever 125 of the side lever drive is moved to the illustrated OFF position. In this position, the fixed first is aligned Closing opening 122 of the handle base with the second closing opening 126 of the lever.
  • the movement of the lever 125 is transmitted to the flexible cable 110 via the intermediate member 130.
  • This flexible cable 110 is connected substantially free of play with the coupling element 140.
  • the coupling element 140 itself is connected substantially free of play with the handle 210 of the electrical switching device 200, so that the movement of the lever 125 can be transmitted to the handle 210.
  • the handle 210 is moved against acting in the electrical switching device 200 contact pressure force to a tipping point.
  • the balance of power so that now the Kunststoffoffenariaskraft is greater than the contact pressure and the switching contacts together with the handle 210 cover another way, without the need for an externally introduced force.
  • This path traveled by the handle 210 of the electrical switching device 200 is transmitted via the flexible cable 110 to the handling system 120 of the side lever drive 100.
  • a locking plate 150 which is not visible in this view and which contains a third locking opening 151, is moved such that this third locking opening 151 is aligned with the first and second locking openings 122 and 126 and the bar of a U-lock is passed through all three locking openings 122, 126, 151 can be performed.
  • a switch position indicator 124 is attached, at the position of the lever 125, the switch position can be read.
  • Fig. 3 is the same situation as in Fig. 2 shown in a side view. It can be seen that the handle 210 of the electrical switching device 200 is in the OFF position, that is to say in an end position of its possibility of movement.
  • the flexible cable 110 is guided for connection to the intermediate element 130 of the handling system 120 through a slot located at a first end 133 of the intermediate element.
  • the nuts 112, 113 can with appropriate Measures to be secured to the thread of the flexible cable 110. For this purpose, it is advisable to counter the nuts 112, 113 with other nuts or, for example, by splinting or gluing to prevent them from twisting.
  • the intermediate element 130 is pulled at its second end 134 in the direction of the handle base 121. This movement is converted via the pivot bearing 131 into a rotational movement of the first end 133 of the intermediate element 130. Up to the tilting point position of the handle 210 presses the intermediate member 130 with its first end 133 against the third nut 113. Upon reaching the tilting point, the lever 125 is in an intermediate position, not shown.
  • the flexible cable 110 can thereby move through the oblong hole at the first end 133 of the intermediate element 130.
  • the distance on the flexible cable 110 to the second nut 112 is at least as great as the distance that covers the flexible cable 110 from the tipping point to the stop of the handle 210.
  • a first nut 111 is applied to the same or another thread with a larger diameter than the thread for the second and third nut 112, 113.
  • This first nut 111 is seen in the direction of the coupling element 140 behind the second and third nut 112, 113 and behind the locking plate 150, through which the flexible cable 110 is also guided. In this case, this first nut 111 is in such a position that it only comes into engagement with the locking plate 150 when the tipping point is reached. The outer diameter of this first nut 111 is selected so that it can take the locking plate 150. Also, this first nut 111 may be secured against rotation by known means. By way of the tipping over additional travel path of the flexible cable 110, the locking plate 150 is moved with its second end 153 in the direction of the first end 133 of the intermediate element 130.
  • the locking plate 150 is rotatably mounted in the handle base 121 (not shown) such that by the described movement of the second end 153, the first end 152, in which the third locking aperture 151 is located, moves to a position in which all three locking apertures 122, 126, 151 are aligned.
  • Fig. 4 is the side view of a side lever drive 100 according to the invention and an electrical switching device 200 in the ON position.
  • the switch-on movement of the lever 125 causes the intermediate element 130 to be pushed away from the handle base 121 at its second end 134. This movement is converted via the pivot bearing 131 into a rotational movement of the first end 133 of the intermediate element 130, wherein the intermediate element 130 also moves in its joint 132. Up to the tilting point position of the handle 210, the intermediate element 130 presses with its first end 133 against the second nut 112. The further, after reaching the tipping point covered path of the switching contacts is transmitted from the handle 210 of the electrical switching device 200 to the flexible cable 110.
  • the flexible cable 110 can thereby move through the oblong hole at the first end 133 of the intermediate element 130.
  • the distance on the flexible cable 110 to the third nut 113 is at least as great as the distance that travels the flexible cable 110 from the tipping point to the stop of the handle 210.
  • the closing plate 150 is acted upon by a force, for example, by a spring (not shown) which presses the second end 153 of the locking plate 150 in the direction of the coupling element 140. Thereby, the first end 152 of the locking plate 150 is moved away from the position in which the third closing opening 151 is aligned with the first closing opening 122 in the handle base.
  • Fig. 5 is shown in a side view of a side lever drive 100 of the invention and an electrical switching device 200, the situation in which the lever 125 of the side lever drive 100 is pressed into the OFF position, although the switch contacts are blocked and the handle 210 of the electrical switching device 200 in an intermediate position located.
  • This position of the lever 125 is possible because when applying a correspondingly large force F on the lever, the elements 110, 125, 130, 140 of the side lever drive, as well as the force-leading elements of the electrical switching device, deform and so the path difference arises between the position of the lever 125 and the handle 210, which can not be moved beyond the intermediate position due to the blocked switching contacts exists.
  • the lever 125 can not be further moved because of its mechanical stop, so that even by a deformation of the elements 110, 125, 130 and / or 140, the first nut 111 does not come into engagement with the second end 153 of the Verschegablechs 150.
  • the locking plate 150 is therefore not moved from its predetermined by the application force rest position to the position in which the third Abschenneö réelle 151 with the first Abschwhoö réelle 122 which is stationary on the handle base, aligned. Instead, the locking plate blocks the first and second locking opening 122, 126. The lever 125 can therefore not be completed in this position.
  • Fig. 6 is shown in a side view of a side lever drive 100 and an electrical switching device 200 according to the invention the situation that the switching contacts of the electrical switching device 200 are blocked in the ON position, the lever 125 has been placed in the OFF position and now no more force on the lever 125 is exercised.
  • the handle 210 of the electrical switching device 200 is located as in Fig. 5 shown in an intermediate position.
  • the deformations of the elements 110, 125, 130, 140 of the side lever drive 100 and the force-carrying elements of the electrical switching device 200 are relaxed, since no more force is exerted on the lever 125, and the lever 125 has moved back to an intermediate position. In this position, none of the three locking openings 122, 126, 151 are aligned, so that the side lift drive 100 is not lockable.
  • the illustrated embodiment has a flexible cable 110 as a transmission element.
  • transmission elements such as a solid rod
  • the loading of the Verschschblechs 150 with a force is done in the illustrated embodiment with a spring.
  • other closing means than the aforementioned padlocks are also conceivable.
  • the driving elements designed as nuts 111, 112 and 113 can be designed differently. For example, it is also possible to clamp or glue corresponding driver elements 111, 112, 113 onto the transmission element 110.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (11)

  1. Dispositif (100) pour la télécommande mécanique d'un appareil de commutation électrique (200) contenant des contacts de commutation, contenant :
    un système de manoeuvre (120) avec un levier (125) et une base de manette (121),
    un élément de transmission (110) et
    un élément de couplage (140),
    dans lequel la base de manette (121) dispose d'une première ouverture de verrouillage fixe (122) et le levier (125) d'une deuxième ouverture de verrouillage (126), qui sont ménagées de sorte que l'étrier d'une fermeture à étrier ne puisse être guidé à travers les deux ouvertures de verrouillage (122, 126) que lorsque le levier (125) se trouve en position ARRET, et
    dans lequel l'appareil de commutation électrique dispose également d'une manette (210), dans lequel la manette (210) de l'appareil de commutation électrique (200) doit être déplacée, pour enclencher ou déclencher l'appareil de commutation électrique (200) à, respectivement, un point de basculement et la manette (210) de l'appareil de commutation continue encore le mouvement de déconnexion - entraîné par une force issue de l'appareil de commutation électrique (200) - lors du mouvement de déconnexion après avoir atteint le point de basculement et lors de la séparation des contacts de commutation,
    caractérisé en ce que :
    le système de manoeuvre (120) dispose d'une tôle de fermeture (150) déplaçable par rapport à la base de manette (121) du système de manoeuvre (120) avec une troisième ouverture de verrouillage (151), dans lequel la tôle de fermeture (150) bloque au moins l'une des ouvertures de verrouillage (122, 126) sur la base de manette (121) ou le levier (125) pour le passage d'un étrier d'une fermeture à étrier si les contacts de commutation ne sont pas séparés.
  2. Dispositif selon la revendication 1, caractérisé en ce que la transmission du mouvement de commutation de la manette (125) sur l'élément de transmission (110) se fait via un élément intermédiaire (130).
  3. Dispositif selon la revendication 2, caractérisé en ce qu'un mouvement relatif est possible entre l'élément de transmission (110) et l'élément intermédiaire (130) si le déplacement de la manette (210) de l'appareil de commutation électrique (200) se fait au-delà du point de basculement de l'appareil de commutation électrique (200).
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la base (121) de la manette présente une butée qui limite la manette (125) de la commande à levier latéral (100) dans son mouvement avant que la manette (210) de l'appareil de commutation électrique (200) n'atteigne sa position finale.
  5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la tôle de fermeture (150) est soumise à une force qui la maintient dans une position telle qu'elle bloque la première ouverture de verrouillage (122) lorsqu'elle n'est pas déplacée par l'élément de transmission (140) dans une autre position.
  6. Dispositif selon la revendication 5, caractérisé en ce que la force appliquée à la tôle de fermeture (150), qui la maintient dans une position telle qu'elle bloque la première ouverture de verrouillage (122), est appliquée par un ressort.
  7. Dispositif selon la revendication 6, caractérisé en ce que le ressort est un ressort de torsion.
  8. Dispositif selon la revendication 6, caractérisé en ce que le ressort est un ressort de compression.
  9. Dispositif selon la revendication 6, caractérisé en ce que le ressort est un ressort de traction.
  10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de transmission (110) est raccordé à l'élément de couplage (140) sensiblement sans jeu.
  11. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la tôle de fermeture (150) est déplacée par l'élément de transmission (110) si les contacts de commutation de l'appareil de commutation électrique (200) s'ouvrent.
EP12750377.9A 2011-08-23 2012-08-22 Commande à levier latéral verrouillable pour un appareil de commutation électrique Not-in-force EP2748831B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12750377.9A EP2748831B1 (fr) 2011-08-23 2012-08-22 Commande à levier latéral verrouillable pour un appareil de commutation électrique

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11178513A EP2562779A1 (fr) 2011-08-23 2011-08-23 Entraînement de levier latéral verrouillable d'un appareil de commutation électrique
EP12750377.9A EP2748831B1 (fr) 2011-08-23 2012-08-22 Commande à levier latéral verrouillable pour un appareil de commutation électrique
PCT/EP2012/066309 WO2013026863A1 (fr) 2011-08-23 2012-08-22 Commande à levier latéral verrouillable pour un appareil de commutation électrique

Publications (2)

Publication Number Publication Date
EP2748831A1 EP2748831A1 (fr) 2014-07-02
EP2748831B1 true EP2748831B1 (fr) 2015-08-19

Family

ID=45421737

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11178513A Withdrawn EP2562779A1 (fr) 2011-08-23 2011-08-23 Entraînement de levier latéral verrouillable d'un appareil de commutation électrique
EP12750377.9A Not-in-force EP2748831B1 (fr) 2011-08-23 2012-08-22 Commande à levier latéral verrouillable pour un appareil de commutation électrique

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11178513A Withdrawn EP2562779A1 (fr) 2011-08-23 2011-08-23 Entraînement de levier latéral verrouillable d'un appareil de commutation électrique

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EP (2) EP2562779A1 (fr)
WO (1) WO2013026863A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362027A (zh) * 2014-12-01 2015-02-18 川铁电气（天津）集团有限公司 适用于27.5kV开关柜内隔离开关柔性传动装置
CN108400065B (zh) * 2018-05-15 2024-01-30 洪恩流体科技有限公司 一种机械应急强制启动装置
CN116884817B (zh) * 2023-09-07 2023-11-28 西门子能源高压开关(杭州)有限公司 传动装置、欠压脱扣器以及断路器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626638A (en) * 1984-12-06 1986-12-02 Siemens Energy & Automation, Inc. Operating system for remote electrical equipment
DE4322215C2 (de) 1993-07-03 1995-08-24 Kloeckner Moeller Gmbh Abschließbarer Drehantrieb für Leistungsschalter
US5973279A (en) 1997-12-12 1999-10-26 Eaton Corporation Stabilizer for a circuit breaker handle mechanism
US6642463B1 (en) * 2002-05-31 2003-11-04 Eaton Corporation Circuit breaker remote actuator with fulcrum member to assist assembly and associated method

Also Published As

Publication number Publication date
WO2013026863A1 (fr) 2013-02-28
EP2562779A1 (fr) 2013-02-27
EP2748831A1 (fr) 2014-07-02

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