EP4295383A1 - Moyen de commutation et changeur de prises en charge doté de moyen de commutation - Google Patents

Moyen de commutation et changeur de prises en charge doté de moyen de commutation

Info

Publication number
EP4295383A1
EP4295383A1 EP22708451.4A EP22708451A EP4295383A1 EP 4295383 A1 EP4295383 A1 EP 4295383A1 EP 22708451 A EP22708451 A EP 22708451A EP 4295383 A1 EP4295383 A1 EP 4295383A1
Authority
EP
European Patent Office
Prior art keywords
switching means
load tap
tap changer
contact
movable contact
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.)
Pending
Application number
EP22708451.4A
Other languages
German (de)
English (en)
Inventor
Christian Hammer
Simon Flotzinger
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
Scheubeck GmbH and Co
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 EP4295383A1 publication Critical patent/EP4295383A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • 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
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H01H2001/545—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force having permanent magnets directly associated with 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
    • H01H9/0016—Contact arrangements for tap changers

Definitions

  • the invention relates to a switching device for an on-load tap changer. Furthermore, the invention relates to an on-load tap changer with a switching means.
  • a moving contact plunger In a vacuum interrupter, a moving contact plunger must always be sealed with a bellows. This is expensive, complex and can easily be damaged during assembly.
  • the switching means is completely closed and therefore robust and insensitive.
  • the force required to actuate the switching means is independent of the external pressure.
  • the movable contact has a first attraction element. By a second attraction element outside the switching means, the movable contact is moved by bringing the second attraction element close to the first attraction element.
  • the movable contact moves inside the switching means from a first position to a second position. In this case, the movable contact makes contact with the two fixed contacts in the second position and makes contact with none or only one of the fixed contacts in a first position.
  • the switching means housing serves to guide the movable contact or the first attraction element or the support in moving from the first position to the second position.
  • the invention proposes an on-load tap changer with a switching means, comprising: a diverter switch rod with a second attraction element.
  • the transmission can be designed in any way and can include multiple input gears and multiple output gears, with a drive shaft moving the selector rods via the input gears and the output gears during shifting.
  • the transmission comprises a crank and a connecting rod
  • the drive shaft moves the diverter switch rod with the second attraction element, via the crank and the connecting rod and thus actuates the switching means indirectly via the first attraction means during switching of the on-load tap changer.
  • the diverter switch bar includes a bridge switch
  • the transmission is set up to actuate the bridge switch during the changeover.
  • the transmission is arranged to move the first selector rod in the first direction during the changeover, thereafter to move the diverter switch rod in the first and the second direction and thereafter to move the second selector rod in the first direction.
  • the gear is designed as a geneva gear.
  • the on-load tap changer has a diverter switch, a selector and a gear.
  • the diverter switch is formed from the diverter switch bar, at least one but preferably three switching means, three bridge switches and three transition resistors.
  • the elector is made up of the first and second electoral staff. Diverter switches and selectors are operated via the gearbox. All the parts of the selector and the diverter switch are placed between two base plates made of insulating material.
  • FIG. 6 shows an on-load tap changer according to the invention with at least one
  • the movable contact 5 makes contact with the two fixed contacts 3, 4. This allows current to flow through the movable contact 5 and the two fixed contacts 3, 4.
  • the spring elements 7, 9 move the movable contact 5 together with the carrier 8 and the first attraction element 6 again into the first position 40 from a certain point
  • the first position is indicated by a dash-dot line.
  • the diverter switch rod 32 is arranged below the switching means 1 .
  • the diverter switch rod 32 performs a linear movement in the horizontal plane.
  • the movable contact 5 is moved downward due to the attracting forces of the two attracting members 6, 32 and contact between the movable contact 5 and the fixed contacts 3, 4 made.
  • the second position is also indicated by a dash-dot line.
  • Spark extinguishing elements 13 are arranged between the respective ends, in particular the contact points, of the movable contact 5 and the fixed contacts 3, 4.
  • the spark extinguishing elements 13 enclose the contact surfaces between the movable contact 5 and the fixed contacts 3, 4 and thus shield the switching means housing 2 from the inside against possible arcs.
  • the switching means housing 2 has fastening webs 15, through which the switching means 1 is fixed in the on-load tap changer 30, preferably on a plate.
  • the fixed contacts 3, 4 can be designed in one or more parts.
  • the contact points between the movable contact 5 and the fixed contacts 3, 4 are preferably made of a material that is particularly resistant to abrasion and erosion.
  • FIG. 6 shows the on-load tap changer 30 with a selector 20 and a diverter switch 50 .
  • the on-load tap changer 30 is actuated by means of a drive shaft 18 via a gear 19 .
  • the voter 20 includes a first voter bar 21 and a second Selector rod 25.
  • the diverter switch 50 comprises a diverter switch rod 32. Since the illustrated embodiment of the on-load tap changer 30 has a three-phase design, the diverter switch 50 has a switching means 1 for each phase.
  • the drive shaft 18 moves the first and second selector rods 21 , 25 and the diverter switch rod 32 via the gear 19 .
  • the diverter switch 50 and the selector 20 are arranged on a base plate 17 .
  • several selector contacts 28 are introduced into the base plate 17 .
  • the selector contacts 28 are connected to winding taps of a control winding of a step transformer, in particular a local network transformer, not shown here.
  • the drive shaft 18 with a crank 53 and a connecting rod 54 is shown in FIG.
  • the connecting rod 54 is mechanically connected to the crank 53 at a first end and to the diverter switch rod 32 at a second end.
  • the diverter switch rod 32 is moved via the crank 53 and the connecting rod 54 during switching in a first direction and in a second direction which is opposite to the first direction. It follows that when switching from one selector contact 28 to an adjacent selector contact 28, the selector rods 21, 25 are moved in a first direction and the diverter switch rod 32 is moved in the first direction and in the second direction, which is opposite to the first direction. is moved.
  • the selector rods 21, 25 are moved at different times in a first direction, i.e. to the right or left or up or down.
  • the diverter switch rod 32 is moved when switching in a first direction and a second direction, which is opposite to the first direction, i.e. to the right and to the left, or vice versa, or up or down, or vice versa.
  • the diverter switch rod 32 via a partially toothed gear and / or to actuate a geneva gear via the drive shaft 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Protection Of Transformers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Control Of Electrical Variables (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Slide Switches (AREA)

Abstract

L'invention concerne des moyens de commutation (1) pour un changeur de prises en charge (30), comprenant : - Un premier contact fixe (3) et un second contact fixe (4) ; - un contact mobile (5) avec un premier élément d'attraction (6) ; - le contact mobile (5) étant mobile à partir d'une première position (40) à une seconde position (41) par l'intermédiaire du premier élément d'attraction (6) et un second élément d'attraction (31) qui est disposé à l'extérieur du moyen de commutation (1) ; le contact mobile (5), dans sa première position (40), vient en contact avec aucun ou seulement un des contacts fixes (3, 4) et, dans sa seconde position (41), vient en contact avec les deux contacts fixes (3, 4).
EP22708451.4A 2021-03-02 2022-02-09 Moyen de commutation et changeur de prises en charge doté de moyen de commutation Pending EP4295383A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021104923.7A DE102021104923A1 (de) 2021-03-02 2021-03-02 Schaltmittel und Laststufenschalter mit einem Schaltmittel
PCT/EP2022/053057 WO2022184389A1 (fr) 2021-03-02 2022-02-09 Moyen de commutation et changeur de prises en charge doté de moyen de commutation

Publications (1)

Publication Number Publication Date
EP4295383A1 true EP4295383A1 (fr) 2023-12-27

Family

ID=80682716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22708451.4A Pending EP4295383A1 (fr) 2021-03-02 2022-02-09 Moyen de commutation et changeur de prises en charge doté de moyen de commutation

Country Status (9)

Country Link
US (1) US20240079189A1 (fr)
EP (1) EP4295383A1 (fr)
JP (1) JP2024507955A (fr)
KR (1) KR20230152705A (fr)
CN (1) CN116918019A (fr)
AU (1) AU2022230117A1 (fr)
DE (1) DE102021104923A1 (fr)
MX (1) MX2023010284A (fr)
WO (1) WO2022184389A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2754431A1 (de) * 1977-12-07 1979-06-13 Hermann Sturm Schaltkontaktstrecke fuer leistungsschalter und schaltschuetze
DE3902726A1 (de) 1989-01-31 1990-08-02 Merit Elektrik Gmbh Schalter, insbesondere fuer kraftfahrzeuge
DE3920546A1 (de) * 1989-06-23 1991-01-10 Kloeckner Moeller Elektrizit Hochleistungskontakt, insbesondere fuer niederspannungsschaltgeraete
FR3007888B1 (fr) * 2013-06-27 2015-07-17 Schneider Electric Ind Sas Contacteur electrique et procede de commande d'un tel contacteur
DE102014107722B3 (de) * 2014-06-02 2015-09-03 Maschinenfabrik Reinhausen Gmbh Schalter für eine Schaltvorrichtung, Lastumschalter eines Laststufenschalters sowie Dauerhauptschalter und Trennschalter hierfür
CN104517742B (zh) 2014-12-29 2018-04-24 刁俊起 一种永磁驱动有载调压开关
DE102018105097A1 (de) 2018-03-06 2019-09-12 Maschinenfabrik Reinhausen Gmbh Laststufenschalter und ortsnetztransformator mit einem laststufenschalter

Also Published As

Publication number Publication date
JP2024507955A (ja) 2024-02-21
MX2023010284A (es) 2023-09-11
WO2022184389A1 (fr) 2022-09-09
KR20230152705A (ko) 2023-11-03
CN116918019A (zh) 2023-10-20
AU2022230117A1 (en) 2023-10-05
DE102021104923A1 (de) 2022-09-08
US20240079189A1 (en) 2024-03-07

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