EP0482362A2 - Accumulateur d'énergie à ressort pour changeur de prises en charges des transformateurs à gradin - Google Patents

Accumulateur d'énergie à ressort pour changeur de prises en charges des transformateurs à gradin Download PDF

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Publication number
EP0482362A2
EP0482362A2 EP91116094A EP91116094A EP0482362A2 EP 0482362 A2 EP0482362 A2 EP 0482362A2 EP 91116094 A EP91116094 A EP 91116094A EP 91116094 A EP91116094 A EP 91116094A EP 0482362 A2 EP0482362 A2 EP 0482362A2
Authority
EP
European Patent Office
Prior art keywords
drive
spring
energy storage
curve
force accumulator
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
EP91116094A
Other languages
German (de)
English (en)
Other versions
EP0482362A3 (en
EP0482362B1 (fr
Inventor
Rolf Dipl.-Ing. Lauterwald
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 EP0482362A2 publication Critical patent/EP0482362A2/fr
Publication of EP0482362A3 publication Critical patent/EP0482362A3/de
Application granted granted Critical
Publication of EP0482362B1 publication Critical patent/EP0482362B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H9/0027—Operating mechanisms

Definitions

  • the invention relates to a spring force accumulator for diverter switches of tap changers of tap transformers, which rotates a shaft suddenly when it is triggered and thereby also moves a switching element connected to this shaft suddenly between two fixed contacts.
  • Such a spring force accumulator is described in the unpublished DE 39 38 207. It essentially consists of two coaxial two-armed energy storage levers, which have articulation points at their free ends, between which springs are clamped, which are guided concentrically around the common axis of the energy storage levers by a further articulation point.
  • the springs form when the energy accumulator is tensioned, i.e. the relative rotation of one energy storage lever against the other, a parallelogram, whereby the desired high initial rotation speed of the energy accumulator should be achieved after the release.
  • a disadvantage of the known spring force accumulator is, however the large number of necessary components, to which considerable accuracy requirements are sometimes placed, which makes production and assembly more expensive.
  • Another disadvantage is the relatively large overall height, which brings problems with the accommodation of the spring force accumulator in the tap changer.
  • the object of the invention is therefore to further develop the known spring force accumulator in such a way that it achieves an equally high initial speed when triggered with a significantly lower overall height and with considerably fewer components.
  • the spring force accumulator has a central vertical axis, on which a drive pulley, two force accumulator levers, a spring lever and a driven pulley are each mounted on the same axis and can be moved independently of one another.
  • the drive pulley consists of two sub-drive pulleys arranged in different horizontal planes, each of which, facing each other, preferably carries an identical drive part arranged vertically congruently.
  • the upper part of the drive pulley has a specially designed release curve divided into two horizontal planes.
  • the two energy storage levers arranged one above the other between the partial drive disks of the drive disk each have a pivot point at one free end, between which a spring is articulated, which is in the middle in a manner known per se by a spring lever, which in turn is arranged coaxially between the energy storage levers a concentric path around the axis.
  • the energy storage levers also each have a contact surface, which interact with the drive parts of the drive pulley. At their other free end, the energy storage levers have output surfaces which interact with an output part which is connected to the output disk.
  • the input and output parts are designed as rollers; if these are designed to be elastic, shock absorption is additionally achieved and bruising after release is avoided.
  • the drive disk When the spring force accumulator is actuated, the drive disk is first rotated; a drive part arranged thereon engages on the contact surface of an energy storage lever and rotates it about the common axis of rotation of the spring energy accumulator, while the other energy storage lever remains in its position under the action of the latched output part, which blocks it. Due to the relative change in position of the two energy storage levers, the spring arranged between them is tensioned, the spring being additionally deflected laterally by the spring lever. Shortly before the end position is reached, the corresponding two-part pawl is actuated by the corresponding contact surface of the drive pulley, which pawl thus also disengages from the locking curve of the driven pulley. The second, previously blocked energy storage lever can thus follow the rotational movement of the first energy storage lever; the spring relaxes. The output disk is tracked by this subsequent energy storage lever via the output part which engages with it on an output surface.
  • the triggering curve of the drive pulley or the locking curve of the driven pulley in turn lead to a latching of the driven part.
  • the tensioning of the spring force accumulator can be repeated.
  • the process is repeated with the same direction of rotation; in the opposite direction of rotation of the drive pulley, the other drive part also causes the rotation of the other energy storage lever; the movement process accordingly takes place in the opposite order.
  • the invention makes it possible to build the entire spring energy store compactly and consisting of a few parts.
  • the tripping and locking curves which are each divided horizontally, allow latching on both sides in a simple manner.
  • the spring force accumulator according to the invention is characterized by a high initial speed after the release.
  • a drive pulley 3 On the vertical axis 9 of the spring force accumulator are a drive pulley 3, two force accumulator levers 7; 8, a spring lever 14 and an output disk 17 are rotatably supported independently of one another.
  • the drive pulley 3 is driven by the drive 1 via a toothed belt 2, it consists of a lower partial drive pulley 3a and an upper partial drive pulley 3b rigidly connected to it.
  • a drive part 4a designed as an elastic roller
  • the upper drive pulley 3b facing downwards, there is another identical drive part 4b, also designed as an elastic roller, vertically congruent.
  • the upper part of the drive pulley 3b has a release curve 6 on its circumference, divided horizontally into the lower partial release curve 6a and the upper partial release curve 6b.
  • This energy storage lever 7; 8 are arranged independently of one another and rotatable about the axis 9 by the other components.
  • This energy storage lever 7; 8 each have a pivot point 10; 11, between which a spring 12 is arranged, approximately in the middle with a pivot point 15 of a one-armed spring lever 14, which is also rotatable in the axis 9, between the two energy storage levers 7; 8, is stored.
  • a driven pulley 17 is rotatably arranged above the upper driven pulley 3b, which is firmly connected to a downwardly directed driven part 18, which is also designed as an elastic roller.
  • the output part 18 extends into the horizontal plane of the energy storage lever 7; 8 and acts on the driven surfaces 26a; 26b.
  • the output pulley 17 is provided on its circumference with a locking curve 25 which - analogously to the triggering curve 6 on the upper partial driving disc 3b - is horizontally divided into a lower partial blocking curve 25a and an upper partial blocking curve 25b.
  • On the trigger curves 6a; 6b and the locking curves 25a; 25b act in pivot points 23; 24 separately stored pairs of pawls 21; 22.
  • Each is Pair of jacks 21; 22 in two partial pawls 21a; 21b and 22a; 22b divided to realize a lock in both directions of rotation.
  • the mode of operation of the spring force accumulator according to the invention is now as follows, wherein the drive 1 is to be rotated counterclockwise: From the basic position shown in Fig. 2a, the drive pulley 3 rotates in the direction of the arrow. The drive part 4a engages in the contact surface 5a of the lower energy storage lever 7 and carries it along. The upper energy storage lever 8 is blocked by the driven part 18, which has engaged in its driven surface 26b, and cannot follow the movement.
  • the driven pulley 17 Shortly before reaching the new end position, as shown in FIG. 2c, the driven pulley 17 is latched by the pair of pawls 22, which act on the upper partial locking curve 25b. After each 90 o movement, the driven pulley is latched alternately by one of the latch pairs 21 or 22.
  • Fig. 3 shows in detail the interaction of the pawls 21, controlled by the lower partial release curve 6a, with the lower locking curve 25a of the driven pulley 17 or the pawls 22, controlled by the upper partial release curve 6b, with the upper locking curve 25b of the driven pulley.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Transmission Devices (AREA)
  • Switches With Compound Operations (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
EP91116094A 1990-10-26 1991-09-21 Accumulateur d'énergie à ressort pour changeur de prises en charges des transformateurs à gradin Expired - Lifetime EP0482362B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4034126 1990-10-26
DE4034126A DE4034126C1 (fr) 1990-10-26 1990-10-26

Publications (3)

Publication Number Publication Date
EP0482362A2 true EP0482362A2 (fr) 1992-04-29
EP0482362A3 EP0482362A3 (en) 1992-10-28
EP0482362B1 EP0482362B1 (fr) 1995-01-18

Family

ID=6417130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116094A Expired - Lifetime EP0482362B1 (fr) 1990-10-26 1991-09-21 Accumulateur d'énergie à ressort pour changeur de prises en charges des transformateurs à gradin

Country Status (9)

Country Link
US (1) US5195632A (fr)
EP (1) EP0482362B1 (fr)
JP (1) JPH04282517A (fr)
AT (1) ATE117458T1 (fr)
BG (1) BG60128B2 (fr)
DE (2) DE4034126C1 (fr)
ES (1) ES2066307T3 (fr)
HU (1) HUT59255A (fr)
RO (1) RO109133B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107438889A (zh) * 2015-03-17 2017-12-05 赖茵豪森机械制造公司 用于有载分接开关的蓄能器以及具有蓄能器的有载分接开关

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4141142C1 (fr) * 1991-12-13 1993-04-08 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
US7566840B2 (en) * 2007-10-04 2009-07-28 General Electric Company Contact arm mechanism for circuit breaker
CN105513843B (zh) * 2016-01-08 2018-01-05 常熟开关制造有限公司(原常熟开关厂） 一种操作机构
EP4084032B1 (fr) 2021-04-28 2025-06-04 Hitachi Energy Ltd Ensemble interrupteur à vide pour un commutateur de dérivation de puissance, commutateur de dérivation de puissance pour un commutateur de prises en charge de transformateur et commutateur de prises en charge de transformateur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846621A (en) * 1956-09-19 1958-08-05 Gen Electric Closing mechanism for an electric circuit breaker
US3183332A (en) * 1962-08-09 1965-05-11 Westinghouse Electric Corp Circuit breaker closing mechanisms
DE2250260C3 (de) * 1972-10-13 1975-10-23 Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg Kraftspeicherantrieb für Lastumschalter und Lastwähler
US3848102A (en) * 1973-07-30 1974-11-12 Gen Electric Electric circuit breaker with auxiliary trip mechanism
DE2806282C2 (de) * 1978-02-15 1980-04-10 Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg Lastumschalter für Stufenschalter von Stufentransformatoren
DE3533179A1 (de) * 1985-09-13 1987-03-19 Siemens Ag Antriebsvorrichtung fuer einen leistungsschalter mit einem klinkenrad
DE3626526A1 (de) * 1986-08-05 1988-02-11 Concordia Sprecher Schalt Federspeicher-antrieb fuer elektrische schaltgeraete
US4761524A (en) * 1987-05-26 1988-08-02 Electrical Equipment, Inc. Switch operating mechanism
DE3938207A1 (de) * 1989-11-17 1991-05-23 Reinhausen Maschf Scheubeck Kraftspeicherantrieb fuer lastumschalter von stufenschaltern in stufentransformatoren

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107438889A (zh) * 2015-03-17 2017-12-05 赖茵豪森机械制造公司 用于有载分接开关的蓄能器以及具有蓄能器的有载分接开关
CN107438889B (zh) * 2015-03-17 2019-05-17 赖茵豪森机械制造公司 用于有载分接开关的蓄能器以及具有蓄能器的有载分接开关

Also Published As

Publication number Publication date
ES2066307T3 (es) 1995-03-01
RO109133B1 (ro) 1994-11-30
DE59104314D1 (de) 1995-03-02
US5195632A (en) 1993-03-23
JPH04282517A (ja) 1992-10-07
ATE117458T1 (de) 1995-02-15
DE4034126C1 (fr) 1992-03-05
HUT59255A (en) 1992-04-28
EP0482362A3 (en) 1992-10-28
BG60128B2 (bg) 1993-10-29
HU913328D0 (en) 1992-01-28
EP0482362B1 (fr) 1995-01-18

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