EP0371375B1 - Sélecteur cylindrique de gradins pour transformateurs à gradins commandé dans un pas - Google Patents

Sélecteur cylindrique de gradins pour transformateurs à gradins commandé dans un pas Download PDF

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Publication number
EP0371375B1
EP0371375B1 EP89121510A EP89121510A EP0371375B1 EP 0371375 B1 EP0371375 B1 EP 0371375B1 EP 89121510 A EP89121510 A EP 89121510A EP 89121510 A EP89121510 A EP 89121510A EP 0371375 B1 EP0371375 B1 EP 0371375B1
Authority
EP
European Patent Office
Prior art keywords
selector
contacts
tap selector
actuable
tap
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.)
Expired - Lifetime
Application number
EP89121510A
Other languages
German (de)
English (en)
Other versions
EP0371375A2 (fr
EP0371375A3 (fr
Inventor
Alexander Bleibtreu
Leo Ing. Grad. Pillmeier (Fh)
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
Priority to AT89121510T priority Critical patent/ATE103734T1/de
Publication of EP0371375A2 publication Critical patent/EP0371375A2/fr
Publication of EP0371375A3 publication Critical patent/EP0371375A3/fr
Application granted granted Critical
Publication of EP0371375B1 publication Critical patent/EP0371375B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
    • 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 single-stage cylindrical step selector for step transformers according to the preamble of claim 1.
  • Such step selector are known: CH-PS 294 482.
  • the preselector contacts are arranged below the fine selector contacts, the fixed preselector contacts on the extended selector cage.
  • the movable preselector contacts are operated on a piece of pipe which is arranged centrally below the switching tube. This piece of pipe and thus the movable preselector contacts are driven by a gearbox, which is arranged between the fine selector switching tube on the underside of the same and the preselector tube piece, in accordance with the preselector switching program.
  • the arrangement of the selection gear between the fine selector and the selection as well as the need to bind the metal parts of such a gear to a fixed potential leads to an undesired extension of the entire selector.
  • there is the actual overall height of the selection gear which must also be added to the length of the total selector.
  • the object of the invention is to provide a tap selector of the type mentioned, in which the gear for driving the preselector is located directly in the dropout gear of the tap selector, so that in the actual selector cage no additional metal parts for driving the preselector are necessary, which the voters useless would extend.
  • the advantage achieved by the invention is in particular that it is possible to arrange the entire drive mechanism in the gear part of the tap selector, so that metallic drive parts are avoided in the contact zones of the tap selector or preselector and so that the coordination of the movement sequences of tap selector and preselector can be done in advance in the transmission part.
  • an auxiliary Geneva dial can be provided, which is only actuated by one step every second step of the step selector, the drive crank having to make one full rotation.
  • the auxiliary Geneva disk is only half the number of cuts compared to the drive disk of the tap selector.
  • the fixed step contacts of a phase are arranged in two planes I, II, with contacts 1, 3, 5, ..., 13 lying in plane I while the Level II has contacts 2, 4, ..., K.
  • a switching tube 21 which leads movable contacts 22, 23 in each plane.
  • These movable contacts 22, 23 establish connections between the fixed step contacts 1, ..., 2, ... and associated contact rings 24, 25, the contact rings 24, 25 being connected to electrical lines 26, 27 which form an associated one , but not shown diverter switch.
  • At the upper end of the switching tube 21 there is a drive disk 28 for the step-by-step actuation of the switching tube 21.
  • This drive disk 28 is designed as a Geneva plate and is actuated by means of a two-armed crank 29, rotation of the crank 29 by 180 ° in each case causing a switching step.
  • the movable contacts 22, 23 are actuated here in one stage, that is to say simultaneously. In the position shown in FIG. 1, when the next switching step (direction of arrow) is carried out, the contact 23 moves from 1 to 13 and the contact 22 remains in contact with the contact K due to the overlap.
  • the contacts (+), (-) of a preselector, movable contacts 30 of this preselector either establishing a connection of the respective center contact K with the (+) contact or (-) contact.
  • the movable contacts 30 of the preselector sit at the end of a switching shaft 31 arranged concentrically in the switching tube 21.
  • This switching shaft 31 of the preselector can be actuated depending on the switching step of the step selector. It is provided with a crank 32, in the recess of which the cam 33 of a two-armed lever 34 can engage.
  • This two-armed lever 34 is actuated by means of a cam 35 seated firmly on the drive disk 28, the movement sequence being set such that the actuation of the preselector contacts 30 takes place as soon as the step selector has completed one revolution.
  • the movable contact 23 changes from 1 to 13, while the movable contact 22 contacts due to its overlap with the contact K remains.
  • the movable preselector contacts 30 change from (-) to (+).
  • all transmission parts, both the step selector and the preselector are combined to form a transmission block in the upper area of the step selector.
  • the switching steps of step selector and preselector are coordinated with each other in the gearbox alone.
  • FIGS. 3 and 4 The basic structure of the second exemplary embodiment according to FIGS. 3 and 4 corresponds to the example described above, which is why the same reference numbers as in the first example are entered here.
  • the only difference is the design of the gearbox.
  • an auxiliary Geneva disk 36 is arranged to the side of the drive disk 28. It is equipped with exactly half of the Maltese cuts 37 as the drive pulley 28.
  • the drive crank 291 actuates both the drive disk 28 and the auxiliary Geneva disk 36.
  • a separate cam 38 is provided on the drive crank 291 for the latter.
  • a rotation of the drive crank 291 by 180 ° leads to an actuation of the drive disk 28 by one step.
  • the drive crank 28 If the drive crank 28 is rotated by a further 180 °, the drive disk 28 performs its second switching step and at the same time the auxiliary Geneva disk 36 is also actuated by one step, the cam 38 running into a Maltese cut 37.
  • the auxiliary Geneva disk 36 is equipped with a cam 39 which engages in the crank 32 of the selector shaft 31 of the preselector in a previously determined switching step. It is clear that due to the equipment of the auxiliary Geneva disk 36 with only half the number of incisions 37 there is an increase in the switching angle for the preselection operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmission Devices (AREA)
  • Keying Circuit Devices (AREA)
  • Multiple-Way Valves (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Testing Relating To Insulation (AREA)
  • Dc-Dc Converters (AREA)

Claims (2)

  1. Sélecteur cylindrique de prises, commandé pas à pas, pour des transformateurs à prises, selon lequel les contacts fixes des prises d'une phase sont répartis dans deux plans à la périphérie du cylindre, avec un tube de commutation, central, qui conduit dans chaque plan, un contact mobile actionné pas à pas par un disque d'entraînement fixé à son extrémité supérieure et dans lequel vient prendre en alternance, une manivelle d'entraînement ayant deux cames décalées de 180°, et pour un pas de commutation par phase, les deux contacts mobiles appliqués contre des contacts fixes voisins sont actionnés simultanément, l'un arrivant sur le contact fixe suivant et l'autre, du fait du chevauchement, restant en contact avec son contact fixe, ainsi qu'un pré-sélecteur actionné après une rotation complète du sélecteur de prises, ce pré-sélecteur étant aligné en-dessous du sélecteur de prises, les contacts de ce sélecteur cylindrique étant situés dans un autre plan du sélecteur de prises, et ses contacts mobiles étant actionnés en fonction de l'entraînement des contacts du sélecteur de prises,
    caractérisé en ce que
    les contacts de pré-sélecteur (30), mobiles, sont prévus à l'extrémité d'un axe de commutation (31) concentrique au tube de commutation (21), et actionné avec ce dernier, l'axe de commutation étant actionné à l'aide d'une manivelle (32) fixée à son extrémité supérieure en fonction du disque d'entraînement (28) du sélecteur de prises.
  2. Sélecteur cylindrique de prises commandé pas à pas, selon la revendication 1, caractérisé en ce qu'un disque de Malte (36), auxiliaire, est prévu décalé latéralement par rapport au disque d'entraînement (28) avec un nombre de pas égal à la moitié de celui des pas du disque d'entraînement, pour être entraîné, chaque fois d'un pas, à l'aide d'une autre came (38) portée par la manivelle d'entraînement (291) pour chaque rotation complète de la manivelle d'entraînement et qui, lors de l'exécution du dernier pas de commutation d'une rotation du sélecteur de prises, peut être couplé à la manivelle (32) de l'axe de commutation (31) du pré-sélecteur alors que, par ailleurs, il effectue des pas à vide.
EP89121510A 1988-12-01 1989-11-21 Sélecteur cylindrique de gradins pour transformateurs à gradins commandé dans un pas Expired - Lifetime EP0371375B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89121510T ATE103734T1 (de) 1988-12-01 1989-11-21 Einstufig betaetigbarer zylindrischer stufenwaehler fuer stufentransformatoren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840528 1988-12-01
DE3840528A DE3840528A1 (de) 1988-12-01 1988-12-01 Einstufig betaetigbarer zylindrischer stufenwaehler fuer stufentransformatoren

Publications (3)

Publication Number Publication Date
EP0371375A2 EP0371375A2 (fr) 1990-06-06
EP0371375A3 EP0371375A3 (fr) 1991-08-14
EP0371375B1 true EP0371375B1 (fr) 1994-03-30

Family

ID=6368260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121510A Expired - Lifetime EP0371375B1 (fr) 1988-12-01 1989-11-21 Sélecteur cylindrique de gradins pour transformateurs à gradins commandé dans un pas

Country Status (6)

Country Link
EP (1) EP0371375B1 (fr)
JP (1) JPH02189908A (fr)
KR (1) KR900010818A (fr)
AT (1) ATE103734T1 (fr)
DE (2) DE3840528A1 (fr)
HU (1) HU206422B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19836463C1 (de) * 1998-08-12 1999-10-21 Reinhausen Maschf Scheubeck Stufenschalter mit einem Vorwähler
BG64809B1 (bg) * 2002-01-24 2006-04-28 Тони ГРОЗДАНОВ Предизбирач за стъпален регулатор на напрежение
DE102010015052A1 (de) * 2010-04-15 2011-10-20 Maschinenfabrik Reinhausen Gmbh Schrittschaltgetriebe für Laststufenschalter von Stufentransformatoren
DE102014106997A1 (de) * 2014-05-19 2015-11-19 Maschinenfabrik Reinhausen Gmbh Schaltanordnung für einen Stufentransformator sowie Verfahren zum Betreiben einer derartigen Schaltanordnung
KR101952411B1 (ko) 2016-12-27 2019-02-26 재단법인 아산사회복지재단 의료용 열성형 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL119926B (fr) * 1944-04-04
DE856019C (de) * 1950-11-23 1952-11-17 Siemens Ag Wendeschalterantrieb mit Rollen- bzw. Gleitkoerpergesperre
DE2106858B1 (de) * 1971-02-13 1972-08-03 Maschinenfabrik Reinhausen Gebr Scheubeck Kg Stufenschalter fur Regeltransforma toren
US3764891A (en) * 1972-07-06 1973-10-09 Westinghouse Electric Corp Tap changing apparatus with prevention of floating tapped winding
DE2913271C2 (de) * 1979-04-03 1982-11-18 Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg Dreiphasiger Lastwähler für Stufentransformatoren

Also Published As

Publication number Publication date
EP0371375A2 (fr) 1990-06-06
DE58907345D1 (de) 1994-05-05
EP0371375A3 (fr) 1991-08-14
DE3840528A1 (de) 1990-06-07
HUT52271A (en) 1990-06-28
JPH02189908A (ja) 1990-07-25
HU206422B (en) 1992-10-28
HU896219D0 (en) 1990-02-28
KR900010818A (ko) 1990-07-09
DE3840528C2 (fr) 1991-01-17
ATE103734T1 (de) 1994-04-15

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