EP2817808A1 - Ensemble d'entraînement pour commutateur à gradins - Google Patents

Ensemble d'entraînement pour commutateur à gradins

Info

Publication number
EP2817808A1
EP2817808A1 EP13700872.8A EP13700872A EP2817808A1 EP 2817808 A1 EP2817808 A1 EP 2817808A1 EP 13700872 A EP13700872 A EP 13700872A EP 2817808 A1 EP2817808 A1 EP 2817808A1
Authority
EP
European Patent Office
Prior art keywords
drive unit
switching contact
actuating
coil
tap changer
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.)
Withdrawn
Application number
EP13700872.8A
Other languages
German (de)
English (en)
Inventor
Christian Hurm
Karsten Viereck
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.)
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck 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 Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP2817808A1 publication Critical patent/EP2817808A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2209—Polarised relays with rectilinearly movable armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • 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
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings

Definitions

  • the invention relates to a drive unit for a tap changer for actuating switch contacts.
  • motor drives are usually used to operate on-load tap-changers. Despite the interaction of motor drive and
  • Tap changers are arranged spatially separated.
  • the on-load tap-changer itself is recessed into the transformer tank, with the exception of the top-standing tap-changer head, while the motor drive is outside the transformer, usually at the transformer
  • Tap changer known by a motor drive.
  • the outside of the transformer housing arranged motor drive actuates the tap changer via drive shafts.
  • the motor drive is controlled by means of a voltage regulator, which determines the control commands by constantly comparing the actual and nominal voltages on the transformer.
  • Vacuum interrupter known.
  • a switching contact of a vacuum interrupter is connected to the protruding end with a movable core.
  • Direction of movement of the core corresponds to the opening or Schüeßschisplatz the switching contact of the vacuum interrupter.
  • the core moves when closing or opening between two end positions, on each of which a current-acting coil is arranged. By selectively applying voltage to one of the coils, a force is induced, the core moves and the vacuum interrupter is opened or closed.
  • a major disadvantage of the known from the prior art drive units is the load and control gears used. The connection of these individual gears with each other is complex and time consuming and costly.
  • the use of simple three-phase motors as drive means brings disadvantages. So it is very difficult and costly especially to obtain three-phase motors with constant laseck loved.
  • the inhomogeneity of the parameters of the three-phase motors requires additional sensors or customized gearboxes.
  • the object of the invention is therefore to provide a drive unit for a tap changer, which is arranged closer to the tap changer, ensures a fast and safe operation of the tap changer and is constructed compact.
  • the object is achieved by a drive unit for tap changer according to the features of the first patent claim.
  • the respective subclaims relate to further advantageous developments of the invention.
  • a drive unit for tap changer which consists of a solenoid arranged directly on the switching contact, which opens or closes the switching contact by applying a voltage.
  • Fig. 1 is a drive unit for a tap changer
  • Fig. 2 shows an embodiment of the drive unit with two coils
  • Fig. 4 shows a special interconnection of drive units
  • Fig. 5 is a drive unit with a coupling element
  • FIG. 6 shows a drive unit with an indirect actuation of a switching contact via a link
  • Fig. 7 shows a drive unit with an indirect actuation of a switching contact via a rack and a cam
  • a drive unit (1) for a tap changer with a housing (2), a coil (3) and an armature (4) is shown.
  • the coil (3) is fixedly mounted in the housing (2) and is electrically connected to a voltage source, not shown here.
  • the armature (4) is arranged in the housing (2) such that it is at least partially enclosed by the coil (3).
  • the armature (4) is designed as a magnet and has a north and a south pole.
  • the armature (4) preferably consists of a hard to
  • demagnetizing material e.g. a samarium-cobalt alloy or a neodymium-iron-boron alloy.
  • the armature (4) is in addition at one end via a connecting piece (5) with a
  • Switch contact (6) closed or opened.
  • the switching contact (6) may e.g. be realized by a vacuum interrupter, a mechanical contact or the like.
  • the actuation of a plurality of switching contacts (6) by means of a drive unit (1) is possible.
  • Switching contacts (6) can be adjusted.
  • Direction of movement of the armature (4) depends on the direction of the current flow and is linear along an axis of symmetry (7).
  • the movement of the armature (4) thus leads to an opening or closing of the switching contact (6) and is thus dependent on the flow direction of the electric current.
  • Fig. 2 shows a possible embodiment of the drive unit (1) for tap changer, in which the armature (4) at least partially enclosing the first coil (3) is not fixed in the housing (2), but at least from a second coil (8) partially enclosed.
  • the coils (3, 8) are mechanically interconnected.
  • the first coil (3) can thereby be used as an anchor and also perform a linear movement along the axis of symmetry (7). This is necessary above all when the force generated by the first coil (3) is insufficient to open the switching contact (6).
  • FIG. 3 shows a further embodiment of the invention, in which a first drive unit (1.1) is arranged behind a second drive unit (1.2) and both have a switching contact (6) press.
  • Both drive units (1.1, 1 .2) have different characteristic values with regard to the lifting height and / or the lifting force, but function according to the same principle as the drive unit (1) from FIG. 1.
  • different phases of an opening or closing operation can be achieved Closing operation can be controlled.
  • Fig. 4 a further Verschaltungsschkeit the drive unit (1) is shown.
  • Each switching contact (6a, 6b, 6c, 6d) is connected to a separate drive unit (1 a, 1 b, 1 c, 1 d).
  • drive units (1 a, 1 b, 1 c, 1 d) are connected to a further, significantly larger drive unit (9).
  • the drive unit (9) should be used primarily as a support and come eg in welded switch contacts used; So as a kind of security element.
  • a coupling element (10) between the drive unit (1) and the switching contact (6) is arranged. This works according to the impact principle and is especially for loosening glued or welded
  • Switching contacts (6) suitable.
  • the drive unit (1) via a coupling ram (1 1), the coupling (10) and via the connecting piece (5) with the switching contact (6) is mechanically connected.
  • the movement is transmitted to the coupling ram (1 1). Since this has a freewheel, it is initially not to actuate the switching contact (6).
  • a pulse is generated by the suddenly occurring resistance via the coupling (10). This is transmitted to the switching contact (6) and dissolves the welded and glued points in the switching contact (6).
  • the pulse strength can be varied.
  • Fig. 6 shows a further embodiment of the invention.
  • drive unit (1) and switching contact (6) indirectly indirectly via a link (12) in conjunction.
  • Connecting piece (5) has at the upper end a cam (13) which scans the contour of the link (12) and thus actuates the switching contact (6).
  • the link (12) is also mechanically connected via a connecting element (14) with the drive unit (1). By actuating the drive unit (1), the link (12) is moved via the connecting element (14). About the contour of the slide (12) and the cam (13) of the switching contact (6) through the connecting piece (5) is actuated.
  • FIG. 7 shows a further embodiment in which the drive unit (1) actuates a toothed rack (15). This is mechanically connected to a gear (16) and thus converts the linear movement of the rack (15) into a rotational movement.
  • the Gear (16) is also connected to a cam (17) which actuates by rotation the switching contact (6) via the connecting piece (5).
  • a particular advantage of the invention is that the individual drives independently of each other actu bar and thereby complex switching operations can be realized. Also positive is the omission of the many gears and the waves. The simplified design and the no longer required items simplify production and reduce costs. The effects of wear on individual parts also lose their importance due to the reduction of the drive unit to just a few components. The replacement of defective or worn components can be faster and more targeted.
  • the drive unit can be made particularly compact, since only one coil is needed and the direction of movement of the armature depends on the polarity of the applied voltage.
  • the control of the polarity of the voltage can be realized very easily and inexpensively. Since the anchor consists of a special, difficult to demagnetize material or alloy, this retains its ferromagnetic property even at high temperatures. This enlarges the field of application of the invention.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electromagnets (AREA)
  • Push-Button Switches (AREA)

Abstract

L'invention concerne un ensemble d'entraînement servant à actionner les contacts de commutation d'un commutateur à gradins. Le problème à résoudre était de proposer un ensemble d'entraînement pour commutateur à gradins qui soit disposé plus près de celui-ci et qui garantisse un actionnement rapide et sûr du commutateur à gradins tout en ayant une structure compacte. Ce problème est résolu par un ensemble d'entraînement constitué d'un électroaimant, disposé directement sur le contact de commutation, qui ouvre ou ferme ledit contact lorsqu'une tension lui est appliquée.
EP13700872.8A 2012-02-23 2013-01-15 Ensemble d'entraînement pour commutateur à gradins Withdrawn EP2817808A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202012100603U DE202012100603U1 (de) 2012-02-23 2012-02-23 Antriebseinheit für Stufenschalter
PCT/EP2013/050627 WO2013124091A1 (fr) 2012-02-23 2013-01-15 Ensemble d'entraînement pour commutateur à gradins

Publications (1)

Publication Number Publication Date
EP2817808A1 true EP2817808A1 (fr) 2014-12-31

Family

ID=45999425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13700872.8A Withdrawn EP2817808A1 (fr) 2012-02-23 2013-01-15 Ensemble d'entraînement pour commutateur à gradins

Country Status (8)

Country Link
US (1) US20150022294A1 (fr)
EP (1) EP2817808A1 (fr)
JP (1) JP2015513794A (fr)
KR (1) KR20140131924A (fr)
CN (1) CN104081479A (fr)
DE (1) DE202012100603U1 (fr)
RU (1) RU2014130768A (fr)
WO (1) WO2013124091A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011109470U1 (de) * 2011-12-22 2013-03-25 Maschinenfabrik Reinhausen Gmbh Antriebseinheit für Stufenschalter
CA2903171A1 (fr) * 2013-03-15 2014-09-18 Cooper Technologies Company Module de commutation pour regulateur de tension
CN104517742B (zh) 2014-12-29 2018-04-24 刁俊起 一种永磁驱动有载调压开关
CN204257438U (zh) * 2014-12-29 2015-04-08 刁俊起 一种永磁驱动有载调压开关
US9679710B1 (en) 2016-05-04 2017-06-13 Cooper Technologies Company Switching module controller for a voltage regulator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE870728C (de) * 1944-11-30 1953-03-16 Siemens Ag Regeltransformator mit Wicklungsanzapfungen
DE1489088A1 (de) * 1964-10-30 1969-05-29 List Dipl Ing Heinrich Polarisiertes elektromagnetisches Antriebssystem
DE19816543C2 (de) 1998-03-13 2000-09-07 Reinhausen Maschf Scheubeck Motorantrieb mit Abtriebswelle und korrespondierende Kupplungsschale
JP2002124158A (ja) * 2000-10-16 2002-04-26 Mitsubishi Electric Corp 開閉装置
DE10119664A1 (de) 2001-04-20 2002-11-14 Reinhausen Maschf Scheubeck Anordnung zur automatischen Spannungsregelung und Motorantrieb zur automatischen Spannungsregelung
US6639496B1 (en) * 2001-04-25 2003-10-28 Van Namen Frederik T. Bistable long-stroke electro-magnetic mechanical actuator
WO2008038421A1 (fr) 2006-09-28 2008-04-03 Mitsubishi Electric Corporation Appareil d'ouverture/fermeture commandé par solénoïde
DE102011080065B4 (de) * 2010-10-16 2012-10-31 Msm Krystall Gbr (Vertretungsberechtigte Gesellschafter: Dr. Rainer Schneider, 12165 Berlin; Arno Mecklenburg, 10999 Berlin) Elektromagnetischer Linearaktor
CN202110930U (zh) * 2011-06-17 2012-01-11 北京博瑞莱智能科技有限公司 自动调容调压配电变压器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013124091A1 *

Also Published As

Publication number Publication date
JP2015513794A (ja) 2015-05-14
KR20140131924A (ko) 2014-11-14
DE202012100603U1 (de) 2012-03-22
WO2013124091A1 (fr) 2013-08-29
CN104081479A (zh) 2014-10-01
US20150022294A1 (en) 2015-01-22
RU2014130768A (ru) 2016-04-10

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