EP2471081B1 - Antriebseinrichtung für ein mehrstellungsschaltgerät - Google Patents

Antriebseinrichtung für ein mehrstellungsschaltgerät Download PDF

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Publication number
EP2471081B1
EP2471081B1 EP09778086.0A EP09778086A EP2471081B1 EP 2471081 B1 EP2471081 B1 EP 2471081B1 EP 09778086 A EP09778086 A EP 09778086A EP 2471081 B1 EP2471081 B1 EP 2471081B1
Authority
EP
European Patent Office
Prior art keywords
link
piece
movement
carrier
drive
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
EP09778086.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2471081A1 (de
Inventor
Peter Klonecki
David Saxl
Hauke Peters
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.)
ABB Schweiz AG
Original Assignee
ABB Schweiz AG
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Publication date
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Publication of EP2471081A1 publication Critical patent/EP2471081A1/de
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Publication of EP2471081B1 publication Critical patent/EP2471081B1/de
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Classifications

    • 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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
    • 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
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H01H2003/405—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing using a walking nut
    • 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
    • H01H3/50—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
    • H01H3/503—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring making use of electromagnets

Definitions

  • the invention relates to a drive device for a multi-position switching device according to the preamble of claim 1.
  • Electrical distribution boards are designed as metal-enclosed, SF6-gas-insulated switchgear, which includes several switching devices, including disconnectors and earthing switches. These earthing switches and circuit breakers are combined with each other in one unit, having a contact system with a movable contact piece, a high voltage fixed contact piece and a grounded fixed contact piece (grounding contact piece).
  • the movable contact piece may be a thrust contact piece, which is brought into communication with the high-voltage fixed contact piece and the grounding contact piece, wherein the drive of the linearly movable contact piece via a gear spindle, such as from EP 0 824 264 B4 known.
  • a drive device according to the preamble of claim 1 is made EP 0 763 839 A2 known.
  • the object of the invention is to provide a drive device of the type mentioned, which is simple in construction and with the sufficient reliability of the drive function can be achieved.
  • a drive device in particular for a multi-position switching device, for example for a disconnector and earthing switch whose movable contact piece in different positions: switch-on position, disconnected position, grounding position and can be moved back provided with a driver which is linearly movable by means of a linear motion drive, in which a link control is provided which holds the driver in the different positions.
  • the link control has two link pieces, of which at least one has recesses for receiving the driver.
  • this link piece may have three recesses in which the driver is held, the link piece with the recesses of the other link piece by means of a drive is removable, so that the driver is freely movable in the separate position of the two link pieces.
  • the other link piece on the backdrop piece with the recesses curvedenden side have a flat surface and be stored stationary.
  • this link control is such that when the driver is in one of the wells, the two link pieces are pressed against each other. So that the driver can be moved, the link piece with the recesses must be deducted from the other link piece; In this case, a free mobility of the driver to the next depression is possible.
  • the link device comprises two link pieces, each of which has a recess and within the recess depending on a strip-like projection, wherein the strip-like projections are offset from each other, so that when joining the two link pieces, the strip-like projections itself overlap and each form a space between them and the end surfaces of the recesses, which serves to receive the driver in each one of the three positions.
  • the strip-like projections may each be limited by step walls, of which the one step walls between them form a receiving space and the other step walls with the end faces of the recesses each form a further receiving space.
  • each further receiving spaces are formed, which are arranged on both sides to the receiving space located between the one step walls.
  • a manual transmission arrangement can be provided in an expedient manner on the lever each with a handle part which converts a rotational movement about a stationary axis into a rotational movement of the reversing lever.
  • An Indian Fig. 1 schematically illustrated electrical switching device 10, which is a three-position switching device, so which can assume a grounding position, a disconnected position and a closed position, has a movable contact piece 11 which is arranged in a cable 12 within a metal-enclosed switchgear.
  • This movable contact piece 11 can take three positions; in one position, the movable contact piece 11 is in communication with a stationary contact piece 13 located at high-voltage potential; in a further position is the movable contact piece 11 with a grounded contact piece 14, also called ErdungsAuthmaschine 14, in conjunction and in the third, drawn position, the contact piece 11 is at a sufficient distance from the fixed, located at high voltage potential contact piece 13 and the fixed grounding contact piece 14; this position is the so-called separation position.
  • the movable contact piece 11 is driven by a drive device 15 which has a drive spindle 16 which has an external thread 17 on which a carriage 18 is guided such that the carriage 18 moves in a rotation of the spindle 16 either upwards in the direction of arrow P1 or down in the direction of arrow P2.
  • the drive spindle 16 is rotated by means of a gear consisting of two gear wheels 19 and 20, which is driven by an electric motor 21 in rotation.
  • a driver 22 On the carriage 18 is a driver 22, which, as from the FIGS. 2 to 7 shows, moves in the direction of arrow P1 or P2 and can be fixed in three positions.
  • the drive device has two link pieces 23 and 24, of which the one link piece 23 has three recesses 25, 26 and 27, whereas the other link piece 24 has a flat surface 28, against which the open sides of the recesses 25 to 27 are directed ,
  • the one link piece 23 can be actuated by means of a stationary magnet system 29, specifically in the direction of the arrow P3; It can therefore be separated from the other gate piece 24 accordingly.
  • the Fig. 2 shows the driver 22 in its middle position, ie in the position in which the driver 22 is located in the central recess 26.
  • the one link piece 23 is deducted from the other link piece 24 in the direction of arrow P 3 by means of the solenoid device or the magnet system 29, whereby the central recess 26 releases the driver 22 and thus the driver 22 can be set in motion by rotation of the drive spindle 16.
  • the movable contact piece 11 is moved in accordance with the line of action 30 from the position shown in the grounding position. This position is represented by the dashed line position of the driver 22 '.
  • To lock the one link piece 23 is moved in the dashed position 23 'against the other link piece 24, whereby the upper recess 25 is pushed over the driver and the driver 22 is held in the upper recess 25.
  • the carriage 18 is moved in the direction of arrow P2, so that the driver 22 is moved to the position 22 ", for which purpose a gate piece 23 is again separated from the other gate piece 24, so that the driver 22 is released and on the middle, thick extended position in the position shown in the drawing below, which is extended by 22 ", can be moved; after reaching the position 22 ", the one link piece 23 is moved against the other link piece 24, so that the driver 22 is held in the lower recess 27.
  • the control of the solenoid system 29 is carried out as needed, taking into account certain locking conditions, which will not be explained in detail here.
  • the FIGS. 4 to 7 show a further embodiment of the invention.
  • the drive device which bears the reference numeral 40 in its entirety, comprises two slide pieces 41 and 42 which are each driven by means of a solenoid system 43 and 44.
  • each gate piece On the opposite sides each gate piece has a respective recess 45 and 46, in which strip-like projections 47 and 48 are provided; the strip-like projection 47 of the first link piece 41 is offset relative to the strip-like projection 48 of the second link piece 42 and is located in the drive direction (P1 or P2) below the strip-like projection 48 of the second link piece 42, so that the strip-like projection 47 of the first link piece 41 can engage in the recess 46 of the second link piece 42.
  • the strip-like projection 48 of the second link piece 42 engages above the strip-like projection 47 of the first link piece 41 in the recess 45 of the first link piece 41 a.
  • the strip-like projection 47 has a respective step wall 49 and 51, via which the front surface of the strip-like projection 47 merges into the bottom surface of the recess 45.
  • the recess 45 is bounded by a first end face 50, which is located at a distance A from the step wall 49, and a second end face 52, wherein the end faces 50, 52 extend perpendicular to the direction of movement P 1 of the carriage 18.
  • the recess 46 of the second link piece 42 also has end surfaces 55 and 56, which lie at the same height as the end surfaces 50 and 52 of the recess 45 of the first link piece 41 and also perpendicular to the direction of movement P 1 of the carriage 18.
  • the strip-like projection 48 of the second link piece 42 has similar to the strip-like projection 47 of the first link piece 41 step surfaces 53 and 54 or step walls 53, 54, via which the front surface of the projection 48 merges into the bottom surface of the recess 46.
  • the strip-like projections 47 and 48 are, as mentioned above, one above the other, wherein they are in the contracted state, see 4 and FIG. 6 overlapping the step surface 54 to the end surfaces 52 and 56, the step surfaces 53 of the strip-like projection 48 to the step surface 51 of the strip-like projection 47 and the step surface 49 of the strip-like projection 47 to the end surfaces 50 and 55 of the recesses 45 and 46 each one Take distance A, so that in the contracted state of the two link pieces 41 and 42 each have a space 57, 58 and 59 is formed, in which the driver 22 can be accommodated.
  • the three spaces 57, 58 and 59 are superposed, with the first space 57 in the drawing above the middle space 58 and the second space 59 below the middle space 58.
  • FIGS. 4 to 7 specified positions of the driver 22, wherein when the driver is in the first, upper space 57, the movable contact piece 11 is in the grounding position; when the driver 22 is received in the central space 58, then the movable contact piece 11 is in the disconnected position, and when the driver is received in the lower, second space 59, the movable contact piece 11 is in the position in which it the located at high voltage potential contact piece 13 is in communication.
  • the positions of the driver 22 in the three rooms can lead to a different contacting position or separation position of the movable contact piece 11. In the position according to Fig. 4 is Depending on the position of the carriage 18, the driver 22 can also be moved into the space 57 or in the space 59.
  • the driver 22 in its middle position and in this case between the devisncommunn- or surfaces 51 and 53 of the projections 47 and 48 in the space 58.
  • the driver 22 On its movement in the direction of arrow P 1 , as is apparent from Fig. 4 can be seen, the driver 22 held by the step wall 53.
  • the link piece 42 in the direction of arrow P4 see Fig. 5 , which is done by means of the electromagnetic system 43, then the step wall 53, the driver 22 free and the driver 22 can according to the direction of arrow P1 move upwards, so that the movable contact piece 11 in the ground position in which the movable contact piece 11 with the grounding contact piece 14 comes into contact, is spent.
  • a restoring element 61 is arranged between the link piece 42 and the electromagnetic drive 44, which then spins the link piece 42 back into the position in which the projection 48 in the recess 45 and the projection 47 engage in the recess 46.
  • a return element may for example be a spring arrangement or else part of the electromagnetic system.
  • the embodiment according to the FIGS. 4 to 7 has the advantage that the driver 22, when the one link piece is removed from the other link piece, always a step surface 51 or 53 or an end face 52, 56 and 50, 55 serves as a stop for the driver, so that movement of the Mit Mothers beyond the respective positions, as in the execution according to the FIGS. 2 and 3 The case could definitely be avoided. This additional security for the operation of a movable contact piece of a switching device is effected.
  • the drive of the motor 21 can be pneumatic, hydraulic or electric. Of course, there is also the possibility of a manual drive.
  • the gear 19, 20 may be formed in different ways. By means of the gear 19, 20, the spindle 16 is driven, which is a so-called Huber Wegungselement, which has the task to convert a rotational movement in a linear movement of the switch 18.
  • the actuation of the link pieces 23, 24 or the link pieces 41, 42 may, as described above, be made electromagnetically.
  • other types of drives in particular of hydraulic or pneumatic drives.
  • the end surfaces 52, 56, 50 and 55 are generally equal in height to the step walls 49, 51, 53 and 54 such that the end surfaces 52, 56; 50 and 55 each about half the height of each step wall 49, 51, 53 and 54 correspond.
  • FIGS. 4 to 7 are the solenoid actuators 43 and 44 facing each other, wherein the direction of movement of the solenoid actuators 43, 44 is perpendicular to the movement of the driver 22.
  • Electromagnetic actuators 81 and 82 are so on both sides of the link pieces 41 and 42 that the direction of movement of the drives 81 and 82 parallel to the direction of movement of the driver 22 extends.
  • a plunger 83 which is hingedly connected via an axis 84 with a reversing lever 85 shown here in the form of a triangle.
  • the bell crank 85 is articulated to a stationary axle 86, and the center axes of the axles 84 and 86 are approximately on a line perpendicular to the direction of travel of the ram 83.
  • a further axis 87 is articulated, to which a further plunger 88 is articulated, which is connected to the link piece 42.
  • the reversing lever 85 is thus designed as a kind of toggle lever and also acts like a toggle lever, wherein the center lines of the axes 86 and 87 lie on a line which is parallel to the direction of movement of the plunger 83 and the driver 22.
  • the three axes 84, 86 and 87 form an L-shaped toggle lever assembly, which converts the direction of movement P 2 of the plunger 83 in the direction of movement P4 of the gate piece 42. Therefore, the reversing lever 85, which is drawn triangular here, could also be designed as L-shaped toggle lever, wherein the fixed axis of the toggle lever would be in the knee.
  • a coil spring 89 is provided which is fixedly mounted on the axis 86 and two arms 90 and 91 which project tangentially and at an obtuse angle to each other from the coil spring 89 and there on the one hand to a stationary retaining pin 92 and on the other hand on the axis Abut 87, wherein the force effect is such that when the plunger 83 is moved against the direction of the arrow P2 in the direction of arrow P1, the coil spring 89 is tensioned.
  • the solenoid system 82 is turned off or released is, the spring 89, the axis 87 against the direction of arrow P4 in the direction of arrow P4 ', so that the sliding block 42 is pressed against the gate 41.
  • the arrangement is also constructed for the electromagnetic system 81, wherein only the directions of movement are reversed.
  • a lever linkage 93 which has an approximately L-shaped grip member 94 which is rotatably mounted in its knee on a stationary axle 95.
  • a transmission rod 97 is articulated, which is connected at its other end pivotally connected to the axis 84.
  • FIG. 9 shows a schematic representation of a plan view of the two link pieces 41 and 42 with the recesses 45 and 46 and the strip-like projection 48 of the second Gate piece 42.
  • an extension 70 of the first gate piece 41 above the two end walls 52 and 56 partially covers the second gate piece 42.
  • an insert screw 71 which engages in a slot 72 in the extension 70.
  • the length of the slot 72 is sized according to the path of movement of the two scenes 41 and 42.
  • the second link piece 42 is subtracted from the first link piece 41, then the second link piece 42 and thus the screw 71 moves within the slot in the direction of arrow P4, so that the screw 71 is moved within the slot 72 against the end of the slot 72, which is adjacent to the free end of the extension 70.
  • the first link piece 41 can not be moved in the direction of arrow P5, because the movement of the first link piece 41, the screw 71 is hindered within the slot 72.
  • Fig. 9 is the extension 70 on the side of the transmission 19 and 20 (see Fig. 1 ); At the opposite end of the link piece 41, a same, projecting in the same direction extension is formed in the Fig. 9 not shown.
  • the drives for the link pieces are designed as electromagnetic systems.
  • the drives hydraulically or pneumatically.
  • the link pieces are each connected to a pin with the respective drive elements.
  • a suitable guide provided so that the link pieces can be moved exactly parallel to each other and exactly transverse to its longitudinal extent. For this purpose, an additional guidance of the link pieces is required.
  • link pieces by two parallel sliding piece elements, which are interconnected, so that instead of a driver two driving pins are provided, between the two Sliding link elements and project in opposite directions.
  • the invention has been described with reference to a switching device, here a disconnector and earthing switch.
  • a switching device here a disconnector and earthing switch.
  • the scenery control according to the FIGS. 1 to 8 to apply in other facilities in which a particular device is to be moved in three different, well-defined positions.
EP09778086.0A 2009-08-25 2009-08-25 Antriebseinrichtung für ein mehrstellungsschaltgerät Active EP2471081B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/006141 WO2011023205A1 (de) 2009-08-25 2009-08-25 Antriebseinrichtung insbesondere für ein mehrstellungsschaltgerät

Publications (2)

Publication Number Publication Date
EP2471081A1 EP2471081A1 (de) 2012-07-04
EP2471081B1 true EP2471081B1 (de) 2017-04-19

Family

ID=42110081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09778086.0A Active EP2471081B1 (de) 2009-08-25 2009-08-25 Antriebseinrichtung für ein mehrstellungsschaltgerät

Country Status (4)

Country Link
EP (1) EP2471081B1 (zh)
CN (2) CN102598178B (zh)
HK (1) HK1171285A1 (zh)
WO (1) WO2011023205A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011111183B4 (de) * 2011-08-25 2022-01-27 Abb Power Grids Switzerland Ag Antriebsvorrichtung für einen Mehrstellungsschalter
EP2728600B1 (en) 2012-10-31 2018-02-21 ABB Schweiz AG Switch assembly for a medium or high voltage switchgear, comprising a three-position switch
EP2887372A1 (fr) * 2013-12-20 2015-06-24 Siemens Aktiengesellschaft Arrangement de commutation mécanique apte à la commande de contacts électriques haute tension
GB201410728D0 (en) * 2014-06-16 2014-07-30 Eaton Ind Netherlands Bv Retraction mechanism
ES2609049B1 (es) * 2015-10-13 2017-11-07 Ormazabal Corporate Technology, A.I.E. Sistema de control de dispositivos eléctricos de alta tensión
FR3058828B1 (fr) * 2016-11-14 2020-02-21 Schneider Electric Industries Sas Selecteur de fonctionnement d'un sectionneur de mise a la terre

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325382A (en) * 1942-01-30 1943-07-27 Gen Electric Operating mechanism for electric switches
US2571960A (en) * 1949-10-20 1951-10-16 Westinghouse Electric Corp Grounding switch operating mechanism
DE3606458A1 (de) * 1986-02-27 1987-09-03 Siemens Ag Elektromechanische verriegelungsanordnung
DE19534392A1 (de) * 1995-09-16 1997-03-20 Abb Patent Gmbh Antrieb für das bewegbare Kontaktstück eines Trenn-Erdungsschalters
JP4869043B2 (ja) * 2006-11-30 2012-02-01 三菱電機株式会社 接地開閉器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2011023205A1 (de) 2011-03-03
CN102598178B (zh) 2015-07-29
CN201681752U (zh) 2010-12-22
HK1171285A1 (zh) 2013-03-22
EP2471081A1 (de) 2012-07-04
CN102598178A (zh) 2012-07-18

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