WO2013160089A1 - Commutateur à plots - Google Patents

Commutateur à plots Download PDF

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Publication number
WO2013160089A1
WO2013160089A1 PCT/EP2013/057272 EP2013057272W WO2013160089A1 WO 2013160089 A1 WO2013160089 A1 WO 2013160089A1 EP 2013057272 W EP2013057272 W EP 2013057272W WO 2013160089 A1 WO2013160089 A1 WO 2013160089A1
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
cam track
switching
load tap
vacuum interrupter
Prior art date
Application number
PCT/EP2013/057272
Other languages
German (de)
English (en)
Inventor
Christian Hammer
Original Assignee
Maschinenfabrik Reinhausen Gmbh
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 filed Critical Maschinenfabrik Reinhausen Gmbh
Publication of WO2013160089A1 publication Critical patent/WO2013160089A1/fr

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Classifications

    • 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
    • H01H9/0038—Tap change devices making use of vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • 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

Definitions

  • the invention relates to an on-load tap changer for uninterrupted switching between different winding taps of a tapped transformer according to the preamble of the first claim.
  • on-load tap-changers have been in use worldwide in large numbers for uninterrupted switching between different winding taps of tapped transformers.
  • Such on-load tap changers usually consist of a selector, for powerless selection of the respective winding tapping of the tapped transformer to be switched to, and a diverter switch for the actual changeover from the connected to the new, preselected winding tapping.
  • the sudden switching is usually done with the help of an energy storage.
  • the diverter switch usually has switch contacts and resistor contacts. The switch contacts serve the direct connection of the respective winding tap with the load dissipation, the resistor contacts for short-time wiring, d. H. Bridging by means of one or more switching resistors.
  • the diverter switch consists of a, driven by a power storage, cam with multiple control contours. Around the cam are vacuum interrupters with
  • Tilt levers arranged. Each rocker arm is connected at one end to a vacuum interrupter. The other end is connected to the cam.
  • a special type of on-load tap changer is the so-called load selector, for example known from DE3833126A1.
  • the load selector combines a selector that is used to select new winding taps and a diverter switch, which is used for actual load switching, in a single device.
  • Load selectors consist in a conventional design of an oil cylinder from an insulating material, a power storage and a switching shaft with a rotatably attached thereto contact arrangement.
  • a radially arranged, three-part cam track is attached inside the Olgefäßzylinders. Below the cam track three externally arranged power terminals are mounted, with a are connected inside slip ring. Above the cam track are the step contacts, which are connected to the respective taps of the stepped windings and engage in the interior of the cylinder.
  • Oil cylinder also consists of an insulating material. At this are, about one
  • a disadvantage of the prior art is the type of operation of the vacuum interrupters.
  • the rocker arms used in the on-load tap-changer require space and lubrication of the moving parts.
  • the rocker arms and surrounding fasteners consist of many individual components, which makes assembly and maintenance difficult and increases production costs.
  • the vacuum interrupters are by indirect actuation by means of a
  • Vacuum interrupter via an externally mounted spring, which has a
  • Rocker arm assembly is in operative connection with a movable plunger.
  • the opening of the vacuum interrupter takes place via a cam, with the aid of which the rocker arm assembly performs a train movement on the movable plunger and thus separates the contacts from each other. Consequently, when opening, not only the force for separating the contacts must be expended, but also for compressing the spring.
  • the disadvantage of the large number of individual components affects the rocker arm assembly and their bearings. The wear increases the tolerances of the bearings and form a variety of potential vulnerabilities.
  • the loss of the rigidity of the individual components results in uncertainties in that the rigidity of these individual components calculated at that time and the service life of the bearings over the current years must be called into question.
  • Object of the present invention is therefore to provide an on-load tap-changer
  • Vacuum interrupter no longer, as known from the prior art, to operate indirectly by means of a rocker arm assembly, but via a cam track and directly connected to the cam track in operative connection movable plunger of the vacuum interrupter, which connects this without the interposition of a rocker arm assembly.
  • the movable plunger for this purpose located at one, located in the interior of the vacuum interrupter, a contact piece for Beschalzten the vacuum interrupter and at its opposite end a role that rolls on the contour of a cam track along a contact. The force required to open the contacts is thus transmitted directly from the cam via the roller to the movable plunger. Due to the reduction of the individual components and the omission of the complicated rocker arm assembly caused by wear
  • Fig. 1 the invention essential components of an on-load tap changer, in particular a directly actuated by a cam traction vacuum interrupter
  • a profiled cam track 1 directly actu bare bare vacuum interrupter 2 is shown.
  • the profiled cam track 1 has a contour which determines the timing and duration of actuation of the vacuum interrupter 2, i. when it is opened or closed.
  • the vacuum interrupter 2 consists of a housing 3 and an insulating ceramic 4. Inside the vacuum interrupter 2 fixed contact pieces 5 are arranged, which are electrically conductively connected to outwardly guided conductors 6. In addition, located inside the vacuum interrupter 2, a movable contact piece 7, which is connected to a plunger 8. The plunger 8 is formed such that it protrudes through a bellows 9 to the outside. At the outside of the vacuum interrupter 2 located end of the plunger 8, a roller 10 is arranged.
  • the materials are profiled
  • Cam track 1 and the roller 10 is selected so that not only the wear is low, but also a flow of current from the plunger 8 of the vacuum interrupter 2 on the roller 10 and the profiled cam track 1 can be excluded.
  • an outwardly projecting, electrically conductive strand contact piece 1 1 is attached to the plunger 8.
  • a plastic housing 13 surrounds the vacuum interrupter 2 including the LitzenAutherie Published from the plastic housing 13 out between the strands kotaktmila 11 and the housing 3 of the vacuum interrupter 2 ,
  • the roller 10 rests on the profiled cam 1 and extends its contour, ie rolls on her.
  • the spring 12 generates a force that presses the plunger 8 and the associated roller 10 against the profiled cam track 1.
  • Vacuum interrupter 2 closes.
  • the operation of the vacuum interrupter 2 can be implemented in two ways.
  • the first possibility is to firmly arrange the vacuum interrupters 2 and to move the profiled cam track 1, as is the case with the common step switches of the case.
  • the second possibility is to fix the profiled cam track 1 and the
  • the direct operation of the vacuum interrupters 2 eliminates Kipphebelan teaspoonen, reduces the number of individual components and saves space. Maintenance and assembly times are significantly reduced and their costs reduced. By direct operation, the force can be transmitted directly to the plunger 8 and thus to the contact piece 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

L'invention concerne un commutateur à plots servant à réaliser une commutation sans coupure entre des prises du bobinage d'un transformateur à gradins. L'invention vise à proposer un commutateur à plots à tubes de commutation sous vide qui est dépourvu de système de levier basculant et qui se caractérise par une sécurité de fonctionnement élevée grâce au petit nombre de composants utilisés pour actionner les tubes de commutation sous vide. A cet effet, l'invention propose un tube de commutation sous vide qui est actionné par l'intermédiaire d'une piste de came et d'un poussoir, mobile en liaison active directe avec la piste de came, des tubes de commutation sous vide.
PCT/EP2013/057272 2012-04-25 2013-04-08 Commutateur à plots WO2013160089A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201220101543 DE202012101543U1 (de) 2012-04-25 2012-04-25 Laststufenschalter
DE202012101543.9 2012-04-25

Publications (1)

Publication Number Publication Date
WO2013160089A1 true WO2013160089A1 (fr) 2013-10-31

Family

ID=46509176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/057272 WO2013160089A1 (fr) 2012-04-25 2013-04-08 Commutateur à plots

Country Status (2)

Country Link
DE (1) DE202012101543U1 (fr)
WO (1) WO2013160089A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018130869A1 (de) * 2018-12-04 2020-06-04 Maschinenfabrik Reinhausen Gmbh Lastumschalter für Laststufenschalter und Laststufenschalter
CN109755051B (zh) * 2019-01-28 2023-09-05 沈阳东电科发科技有限公司 一种复合式真空灭弧有载调压开关的切换选择器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534643A1 (de) * 1975-08-02 1977-05-12 Fuji Electric Co Ltd Laststufenschalter
EP0355814A2 (fr) * 1988-08-26 1990-02-28 Aichidenki Kabushiki Kaisha Un mécanisme à accumulation de force dans un changeur de prises en charge
DE3833126A1 (de) 1988-09-29 1990-04-05 Siemens Ag Lastwaehler fuer stufentransformatoren
DE4231353A1 (de) * 1991-09-19 1993-04-01 Toshiba Kawasaki Kk Stufenschalter
JPH0963868A (ja) * 1995-08-29 1997-03-07 Hitachi Ltd 真空スイッチ式負荷時タップ切換器
DE19847745C1 (de) * 1998-10-16 2000-01-05 Reinhausen Maschf Scheubeck Stufenschalter
WO2011035825A1 (fr) * 2009-09-26 2011-03-31 Maschinenfabrik Reinhausen Gmbh Commutateur à gradins à tubes commutateurs à vide

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2534643A1 (de) * 1975-08-02 1977-05-12 Fuji Electric Co Ltd Laststufenschalter
EP0355814A2 (fr) * 1988-08-26 1990-02-28 Aichidenki Kabushiki Kaisha Un mécanisme à accumulation de force dans un changeur de prises en charge
DE3833126A1 (de) 1988-09-29 1990-04-05 Siemens Ag Lastwaehler fuer stufentransformatoren
DE4231353A1 (de) * 1991-09-19 1993-04-01 Toshiba Kawasaki Kk Stufenschalter
JPH0963868A (ja) * 1995-08-29 1997-03-07 Hitachi Ltd 真空スイッチ式負荷時タップ切換器
DE19847745C1 (de) * 1998-10-16 2000-01-05 Reinhausen Maschf Scheubeck Stufenschalter
WO2011035825A1 (fr) * 2009-09-26 2011-03-31 Maschinenfabrik Reinhausen Gmbh Commutateur à gradins à tubes commutateurs à vide
DE102009043171A1 (de) 2009-09-26 2011-04-07 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Vakuumschaltröhren

Also Published As

Publication number Publication date
DE202012101543U1 (de) 2012-05-07

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