EP2559042A1 - Contact de commutation mécanique - Google Patents

Contact de commutation mécanique

Info

Publication number
EP2559042A1
EP2559042A1 EP11710116A EP11710116A EP2559042A1 EP 2559042 A1 EP2559042 A1 EP 2559042A1 EP 11710116 A EP11710116 A EP 11710116A EP 11710116 A EP11710116 A EP 11710116A EP 2559042 A1 EP2559042 A1 EP 2559042A1
Authority
EP
European Patent Office
Prior art keywords
contact
mechanical
electrically conductive
switching
contact finger
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
EP11710116A
Other languages
German (de)
English (en)
Other versions
EP2559042B1 (fr
Inventor
Klaus HÖPFL
Silke Wrede
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 EP2559042A1 publication Critical patent/EP2559042A1/fr
Application granted granted Critical
Publication of EP2559042B1 publication Critical patent/EP2559042B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/56—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
    • 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
    • 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
    • H01H9/0016—Contact arrangements for tap changers
    • 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
    • H01H9/0044—Casings; Mountings; Disposition in transformer housing
    • 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
    • H01H9/02—Bases, casings, or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/02—Interspersed fingers

Definitions

  • the present invention relates to a mechanical switching contact for switching or activation or for the separation of an electrical contact, in particular in a diverter switch of a tap changer with the features of the independent claim.
  • Known diverter switch for tap changers of control transformers usually have a so-called. Resistance Quick changeover, the switching contact shafts are controlled by a cam gear, which in turn is driven by a power storage. Here, the cam moves in an oscillating
  • DE 100 50 821 C1 discloses a mechanical switching contact for double-pole interruption for a tap changer.
  • the switching contact has a Isolierstoffdoi, are arranged on the fixed contacts, which are formed as spherically shaped contact areas.
  • a contact carrier is further rotatably mounted, which is in communication with a pivotable about a certain angle arm. At the free end of the swivel arm is a
  • Attached contact piece which in turn has at its two ends contact rollers. These contact rollers make it possible to connect the fixed contacts. Depending on the position of the swivel arm, the contact rollers strike the spherical surface in each case against oppositely disposed fixed contacts and in this way produce electrical contact connections in each case.
  • On-load tap-changer is known from WO 2007/042088 A1.
  • this mechanical switching contact has an insulating material on which fixed, connectable contacts are arranged.
  • a shift lever is rotatable on the insulating carrier mounted, which has at one of its two free ends a pivoting arm and at the other free end an actuating contour.
  • the shift lever is pivotable upon application of force to the operating contour of one of its two stationary states in the other stationary state.
  • On Isolierstoffong a pivotable about a separate bearing contact housing is additionally mounted, which carries two parallel, electrically interconnected contact fingers, which surround the respectively connected fixed contacts on both sides.
  • the contact housing is connected to the shift lever in a mechanical connection and is actuated by this.
  • the shift lever may further comprise a driver which engages positively in a driving opening of the contact housing.
  • One of the two fixed contacts can optionally be designed as a contact rail on which the contact fingers slide during movements of the contact housing.
  • the actuating mechanisms for known mechanical switching contacts for switching in on-load tap-changers have in common that switching takes place between two end positions, so that oscillating switching movements are required.
  • WO 89/08924 A discloses a spring-jump drive for diverter switch of tap changers whose memory spring is tensioned by a drive whose shaft rotates either clockwise or counterclockwise, one of the
  • Memory spring during the switching operation driven element for contact movement performs a rotational movement.
  • the element for contact movement may be, for example, a cam or a link control.
  • the accumulator spring and the driven element are connected to a coupling element which is rotatable only in one direction, regardless of the direction of rotation of the drive.
  • This known spring jump drive is used for contact sequence control and should be particularly suitable for thyristor diverter switch.
  • An object of the present invention is to propose a reliable mechanical switching contact, which allows a mechanically and electrically secure contact between two end positions and regardless of a direction of rotation of an actuating shaft. This object of the invention is with the subject matter of the independent
  • On-load tap-changer of a tapped transformer can be used.
  • the mechanical switching contact has at least two independently movable, in each case pivotable between two end positions, electrically interconnected contacts or contact assemblies or Maisfingerwee, which are operatively connected via multi-lever joints with a rotatable switching shaft, the circulating guide slots for actuating the multi-lever joints and coupled thereto Deflection of the contacts or contact assemblies has.
  • This mechanical switching contact is designed as a disconnector or switch and is used for reliable and mechanically and electrically highly resilient switching, eg. In a tapped transformer.
  • the two pivotable contacts or contact finger packages are preferably mounted on an electrically conductive common axis, which is arranged parallel to the rotatable switching shaft.
  • the contacts or contact finger pacts may also be stored deviating therefrom, for example perpendicular to the axis.
  • Each of the two pivotable contact assemblies or contact finger packets is still a separate mechanical, electrically conductive, trained as a contact stop for forming the respective switched end positions of the circuit breaker, disconnector or switch assigned.
  • the mechanical switching contact according to the invention provides a reliable working electrical isolation or changeover switch whose shift fingers are forcibly driven via a rotating cam slot or disc and therefore can be controlled very accurately and reliably, according to the curve design regardless of the direction of rotation of the cam or disc.
  • it is particularly advantageous if no oscillating drive, but a rotating, possibly even direction-independent actuating movement for the disconnector or switch can be used, as for example.
  • tap changers or load switches o. The like. In the high current range is the case ,
  • the first contact assembly or the first contact finger package in a first end position of the mechanical switching contact its electrically conductive mechanical stop abuts and establishes an electrically conductive connection between the electrically conductive common axis and the stop, while the second contact assembly or the second
  • the two contact finger packages are optionally mechanically coupled together.
  • the Kunststofffingere are slightly delayed against each delayed and correspondingly switchable, so that during the short switching time first the conductive contact of a contact finger package is closed before the conductive contact of the other contact finger packet open and the individual Switching process is completed.
  • the contact finger packages or contact assemblies are actuated independently of the direction of rotation of the switching shaft, so that they each have the same or changing during repeated rotational movements
  • Guide slots are preferably each rotatable with the shift shaft
  • Movement or guide slots can be deflected when the discs are rotated with the stem.
  • the bolt is preferably between the frame or
  • Lever movement can be achieved, which is to pivot the respective
  • the two contact finger packages or contact assemblies can be repeatedly operated in the aforementioned manner as a disconnector, disconnector or switch without the direction of rotation of the switching shaft is changed.
  • the shift shaft may, for example, be coupled to an existing rotary drive via a step transmission, so that a fixed phase assignment can be ensured.
  • Switching ramps can be achieved both in the opening path of the contacts and in terms of the angle of rotation of the drive shaft.
  • An unspecified variant here also sees a three-phase
  • Fig. 1 shows a schematic perspective view of an embodiment of a mechanical switching contact according to the invention.
  • Fig. 2 shows a further illustration of the mechanical switching contact according to
  • FIG. 3 shows another view of the switching contact according to FIG. 2.
  • FIG. 4 shows a third view of the switching contact according to FIG. 2.
  • FIG. 1 The schematic representations of Figures 1 to 4 show a mechanical switching contact 10 for switching, which can be used in particular in an on-load tap changer of a tapped transformer.
  • the illustrated with reference to an embodiment mechanical switching contact 10 has two pivotable between two end positions, electrically conductively interconnected contact fingers 12 and 14, which are each operatively connected via multi-lever joints 16 with a rotatable switching shaft 18.
  • cams 22a, 22b, 22c are arranged, each serving for guiding and movement of the multi-lever joints 16.
  • the cams 22a, 22b, 22c each have circumferential guide slots 24, which are used for the articulation of
  • Multi-lever joints 16 and coupled to the deflection of the contact fingers 12 and 14 are used.
  • the mechanical switching contact 10 shown is designed as a changeover switch or as an open switch, which is why the two pivotable contact fingers 12 and 14 are electrically connected and mounted on the common axis 20.
  • the axis 20 is arranged parallel to the rotatable switching shaft 18.
  • Each of the two pivotable contact fingers 12 and 14 is also assigned a separate mechanical, electrically conductive stop 26 and 28 to form the respective switched end positions of the switch.
  • the upper contact finger 12 has a first stop 26 on which it bears in a first switching position electrically conductive, so that an electrically conductive connection between the axis 20 and the first stop 26 is made.
  • the lower contact finger 14 is associated with the second stop 28, to which it bears electrically conductively in a second switching position, so that an electrically conductive connection between the axis 20 and the second stop 28 is made.
  • the first contact finger 12 is lifted from the first stop 26, while the second contact finger 14 rests against the second stop 28.
  • a switching process (not shown here), however, both are briefly present
  • the mounting frame 30 shown in Figures 2 to 4 serve to anchor and support the axle 20 and the stops 26 and 28 and the associated or mounted thereon movable parts.
  • FIG. 4 the movements of the multi-lever joints 16, which are formed from a plurality of interconnected levers 32 and 34, are particularly illustrated.
  • a one-sided frame or housing fixedly mounted long lever 32 of each multi-lever joint 6 has a sliding in the guide slot 24 bolt 36 which is located closer to its free end 38 than at its pivotal anchoring on
  • a short lever 34 is mounted on an axle 42, which engages pivotally on the contact finger 14 at its other end.
  • the bolt 36 is so between the frame or
  • the upper contact finger 12 is in a corresponding manner with a
  • the mechanical switching contact 10 provides a reliable mechanical changeover switch whose
  • Shifting fingers 12, 14 are positively driven over the rotating shaft 18 and the cam plates 22 and therefore can be controlled very accurately and reliably, regardless of the direction of rotation of the shaft.
  • the two contact fingers 12 and 4 can be repeatedly operated in the manner shown as an enable switch, disconnector or switch without the direction of rotation of the switching shaft 18 is changed.
  • the mechanical changeover switch according to the invention can thus continue to switch in one direction or switch back and forth several times.
  • the switching shaft 18 may, for example, be coupled via a step transmission to an existing rotary drive, so that a fixed phase assignment can be ensured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Tumbler Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un contact de commutation mécanique (10) pour un circuit de connexion, de séparation ou de basculement, en particulier dans un graduateur de réglage en charge d'un transformateur à échelons, qui comporte au moins deux doigts de contact ou paquets de doigts de contact (12, 14), basculables chacun entre deux positions finales et connectés ensemble en conduction électrique, les doigts de contact étant chacun connectés fonctionnellement au moyen d'articulations à plusieurs bras (16) avec un arbre de commutation (18) rotatif qui sert, grâce à des coulisses de guidage (24), à l'actionnement des articulations à plusieurs bras (16) et à la déviation ainsi couplée des doigts de contacts ou paquets de doigts de contact (12, 14).
EP11710116.2A 2010-04-15 2011-02-23 Contact de commutation mecanique Active EP2559042B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010015051A DE102010015051B4 (de) 2010-04-15 2010-04-15 Mechanischer Schaltkontakt
PCT/EP2011/000854 WO2011128012A1 (fr) 2010-04-15 2011-02-23 Contact de commutation mécanique

Publications (2)

Publication Number Publication Date
EP2559042A1 true EP2559042A1 (fr) 2013-02-20
EP2559042B1 EP2559042B1 (fr) 2014-04-09

Family

ID=43927962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11710116.2A Active EP2559042B1 (fr) 2010-04-15 2011-02-23 Contact de commutation mecanique

Country Status (12)

Country Link
US (1) US8927885B2 (fr)
EP (1) EP2559042B1 (fr)
JP (1) JP5744181B2 (fr)
KR (1) KR101778104B1 (fr)
CN (1) CN102893359B (fr)
BR (1) BR112012025815B1 (fr)
CA (1) CA2803182A1 (fr)
DE (1) DE102010015051B4 (fr)
HK (1) HK1178682A1 (fr)
RU (1) RU2012148550A (fr)
UA (1) UA106652C2 (fr)
WO (1) WO2011128012A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007535B4 (de) * 2010-02-11 2017-12-21 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Freilaufelement
DE102010020180A1 (de) * 2010-05-11 2011-11-17 Maschinenfabrik Reinhausen Gmbh Lastumschalter für einen Stufenschalter
DE102013102299B4 (de) * 2013-03-08 2014-12-04 Maschinenfabrik Reinhausen Gmbh Linearwähler
DE102013107554B4 (de) * 2013-07-16 2016-05-19 Maschinenfabrik Reinhausen Gmbh Lastwähler
DE102014100421B3 (de) * 2014-01-15 2015-01-15 Maschinenfabrik Reinhausen Gmbh Schalter für eine Schaltvorrichtung mit Schaltwelle, dessen Verwendung in einem Lastumschalter, Schaltvorrichtung mit Schaltwelle und Schalter, deren Verwendung in einem Laststufenschalter, Lastumschalter für Laststufenschalter sowie Regeltransformator
DE102014107722B3 (de) 2014-06-02 2015-09-03 Maschinenfabrik Reinhausen Gmbh Schalter für eine Schaltvorrichtung, Lastumschalter eines Laststufenschalters sowie Dauerhauptschalter und Trennschalter hierfür
DE102014112764A1 (de) * 2014-09-04 2016-03-10 Maschinenfabrik Reinhausen Gmbh Schaltanordnung für einen Regeltransformator, insbesondere Polungsschalter
CN105513838A (zh) * 2014-09-25 2016-04-20 莫诺产业股份有限公司 中低压配电变压器无载分接开关
CN104752076A (zh) * 2015-04-21 2015-07-01 武汉长虹恒通高压设备有限公司 一种单相滚环式接触无励磁分接开关
US11120962B2 (en) * 2015-08-28 2021-09-14 Maschinenfabrik Reinhausen Gmbh Load transfer switch for an on-load tap changer and continuous main switch and disconnecting switch for same
CN108987145A (zh) * 2017-06-05 2018-12-11 乐清市飓达电器厂 一种新型分接开关

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DE526809C (de) * 1930-01-24 1931-06-10 Bernhard Jansen Dr Ing Lastumschalter fuer Anzapftransformatoren mit zwei gegenlaeufig bewegten Schaltern
AT275674B (de) * 1966-12-02 1969-11-10 Elin Union Ag Hauptstromschalter zur Führung des Dauerstromes bei Lastumschaltern für Regeltransformatoren
DE1805378A1 (de) * 1968-10-26 1970-05-06 Reinhausen Maschf Scheubeck Lastumschalter fuer Stufenschalter von vorzugsweise dreiphasigen Regeltransformatoren mit Vakuumschaltelementen
DE1930719C2 (de) * 1969-06-18 1971-05-19 Reinhausen Maschf Scheubeck Lastumschalter fuer Stufenschalter von Regeltransformatoren
DE3326549A1 (de) * 1983-07-22 1985-02-07 Transformatoren Union Ag, 7000 Stuttgart Lastwaehler fuer stufentransformatoren
AT389187B (de) 1988-03-18 1989-10-25 Elin Union Ag Federsprungantrieb fuer lastumschalter von stufenschaltern
DE4101866A1 (de) * 1991-01-23 1992-07-30 Reinhausen Maschf Scheubeck Umschaltanordnung
DE19510809C1 (de) * 1995-03-24 1996-07-04 Reinhausen Maschf Scheubeck Lastumschalter eines Stufenschalters
CN1205798A (zh) * 1995-12-21 1999-01-20 赖茵豪森机械制造公司 步进开关用的负荷转换开关
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Also Published As

Publication number Publication date
JP5744181B2 (ja) 2015-07-01
WO2011128012A1 (fr) 2011-10-20
BR112012025815B1 (pt) 2020-03-03
CA2803182A1 (fr) 2011-10-20
EP2559042B1 (fr) 2014-04-09
BR112012025815A2 (pt) 2016-06-28
KR101778104B1 (ko) 2017-09-13
KR20130093479A (ko) 2013-08-22
DE102010015051A1 (de) 2011-10-20
US20130192963A1 (en) 2013-08-01
CN102893359B (zh) 2015-08-05
RU2012148550A (ru) 2014-05-20
JP2013527565A (ja) 2013-06-27
CN102893359A (zh) 2013-01-23
UA106652C2 (uk) 2014-09-25
DE102010015051B4 (de) 2012-06-14
US8927885B2 (en) 2015-01-06
HK1178682A1 (en) 2013-09-13

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