EP1105896B1 - Stufenschalter mit einem vorwähler - Google Patents

Stufenschalter mit einem vorwähler Download PDF

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Publication number
EP1105896B1
EP1105896B1 EP99927873A EP99927873A EP1105896B1 EP 1105896 B1 EP1105896 B1 EP 1105896B1 EP 99927873 A EP99927873 A EP 99927873A EP 99927873 A EP99927873 A EP 99927873A EP 1105896 B1 EP1105896 B1 EP 1105896B1
Authority
EP
European Patent Office
Prior art keywords
preselector
contact
contacts
tap selector
selector switch
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
EP99927873A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1105896A1 (de
Inventor
Wolfgang Albrecht
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 EP1105896A1 publication Critical patent/EP1105896A1/de
Application granted granted Critical
Publication of EP1105896B1 publication Critical patent/EP1105896B1/de
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
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/02—Contacts; Wipers; Connections thereto
    • 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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/44—Driving mechanisms, i.e. for transmitting driving force to the contacts using Geneva movement

Definitions

  • the invention relates to a tap changer with a selection for uninterrupted switching between different winding taps of a step transformer.
  • Tap changers have been installed in transformers for many years in order to be able to adjust the voltage, active and reactive power of electrical networks by changing the gear ratio under load.
  • Known tap changers are known in two basic designs: in one design they consist of the separate modules tap changer and diverter switch, in the second design these two modules are combined to form a load selector that performs both functions.
  • the term "tap changer" used in the following is intended to encompass both of the aforementioned designs.
  • the gear ratio is set in stages; the transformer with a Step winding equipped, the taps can be switched by the step switch.
  • this known selection can implement the two known functions shown schematically in FIG. As shown in FIG. 1a, it can serve as a turner for switching the step winding on and off or, as shown in FIG. 1b, for deflecting the step winding to the beginning or to the end of the coarse step. In any case, the preselection doubles the setting range with the same length of the step winding.
  • the preselector consists of a total of three fixed preselector contacts, whereby one of the two fixed contacts "+” or "-” is connected to the third fixed contact "0", depending on the switch position.
  • a step switch is known from the Bulgarian company publications "On-Load Tap Changer Type RS12'1 and" On-Load Tap Changer Type 16 ", which is located inside an insulating material cylinder and whose selection extends outside this insulating material cylinder in its longitudinal direction.
  • the fixed selector contacts are arranged in a line with the contact sequence "+” - "0" - "-” or "-" - "0” - “+” and are actuated linearly by a shift rod that can be moved in the longitudinal direction.
  • This shifting rod which can be moved in the longitudinal direction, has a preselector contact bridge for each phase, through which either one of the two fixed preselector contacts "+” or “-” with the other fixed preselector contact "0", which is arranged between them and forms the root connection of the preselector, is connectable.
  • the longitudinal movement of the shift rod is described by a Maltese transmission, which is located on the The top of the tap changer is located and the rotary movement of the selector shaft inside the Insulated cylinder of the tap changer for actuating the selector contacts generated by a tapped special gear train.
  • this known tap changer with an external, linearly operable selection has several disadvantages.
  • On the one hand due to the large longitudinal extent of the entire selection arrangement, considerable accuracy requirements must be met.
  • Even the slightest tolerances between the fixed selector contacts on the one hand and between them and the movable preselector contact bridge on the other hand mean that the contact bridge cannot run properly onto the fixed contacts to be electrically connected to one another. This problem is exacerbated in the course of the operating time by contact erosion and mechanical wear of the contacts.
  • a special guide for the shift rod is required.
  • the capacitive switching capacity of the preselector is limited by the selected contact arrangement.
  • the object of the invention is to provide a generic tap changer with an external, linearly operated preselector, in which no complex guidance of the selector rod carrying the preselector contact bridge is required and nevertheless, even with tolerances that occur, safe switching with essentially constant contact forces is possible.
  • the tap changer according to the invention with preselection should also be suitable for high voltage stresses on the preselection.
  • a particular advantage of the invention is that the longitudinally displaceable shift rod of the preselector does not require any special guidance and the drive system as a whole does not have to meet any special accuracy requirements. Rather, the design of the self-centering preselector contact bridge creates a practically self-adjusting contact system with constant contact forces.
  • the ring-shaped design of the fixed selector contacts according to the invention also allows high stresses; The selection according to the invention enables high capacitive switching capacities to be managed, so that it will only be necessary in a few special cases to provide additional polarization resistances.
  • the chosen structure of the preselector on a separate insulating tube gives a compact, stable and simple structure; the complete selection can be easily prefabricated as a complete assembly and attached just as easily to the side of the isolating cylinder of the tap changer.
  • FIGS. 2 and 3 shows a selection which has a tubular insulating material housing 1 as the supporting component.
  • the fixed preselector contacts 2, 3, 4 - shown here for only one phase - are arranged.
  • Each of the fixed selector contacts is circular, concentric with the insulating housing 1.
  • Contact 2 has the function of contact "+" from FIG. 1, accordingly contact 3 takes over the function of contact "0" and contact 4 takes over the function of contact "-" from FIG. 1.
  • a longitudinally displaceable switching rod 5 is arranged, which carries the preselector contact bridge 6.
  • the preselector contact bridge 6 consists in detail of an annular contact carrier 7 enclosing the switching rod 5 and fastened thereon, on which radially movable, spring-mounted contact pieces 8, 9, 10, 11 are arranged. These contact pieces 8, 9, 10, 11 are pressed radially outwards by pairs of springs 12, 13, 14, 15 in such a way that a defined contact pressure is generated when they run onto the respective fixed contacts 2, 3, 4.
  • the radial path of the contact pieces 8, 9, 10, 11 is limited by respective stops 16 at the top and bottom of the contact carrier 7.
  • Figure 2 shows the selection according to the invention in the same switching position as in Figure 1, in which the contacts "+" and "0" are connected.
  • the selector rod 5 is moved downwards, this is indicated by an arrow in FIG. 2, the contact carrier 7 leaves the preselector contact 2 and runs down through the preselector contact 3 and remains in contact with it. It finally runs onto the preselector contact 4 and thus establishes the new connection of this preselector contact 4 with the function "-" with the preselector contact 3; the switchover is complete.
  • Figure 4 shows another embodiment of a preselector contact bridge.
  • the contact pieces 17, 18 are in turn pressed outwards by spring pairs 19 and 20; the path is limited by cross bolts 21 with an outer stop, which are guided in bores of the respective contact pieces 17, 18.
  • the two further contact pieces are delimited by further transverse bolts 22 in a plane offset by 90 degrees.
  • FIG. 5 shows a second embodiment of a preselector according to the invention in a side sectional view.
  • a tubular insulating material housing 23 is provided as the supporting component.
  • the fixed preselector contacts 24, 25, 26 are in turn arranged on the inside of the wall of this insulating material housing 23, which in turn are circular and concentric with the insulating material housing 23.
  • a longitudinally displaceable switching rod 27 is arranged inside the insulating material housing 23, which in turn carries a preselector contact bridge 28.
  • this preselector contact bridge 28 consists of an annular contact carrier 29 on which radially movable, spring-mounted contact pieces are arranged, of which only two contact pieces 30, 31 lying opposite one another are shown in the sectional view. Each of these contact pieces is pressed radially outwards by spring pairs, here the spring pairs 32, 33 are shown. The radial path of the individual contact pieces is in turn limited by upper and lower stops 34.
  • the individual contact pieces, here the contact pieces 30, 31 are tapered in their central region 35, 36. ie drawn in.
  • FIG. 5 An embodiment as in FIG. 4 with travel limitation by means of cross bolts provided with a stop is also possible.
  • the taper described in the respective central area is particularly important for the function of the second embodiment shown in FIG. This tapering results in a double-pole interruption and changeover function of the preselector. If the preselector is actuated, ie the switching rod 27 is moved downwards, the contact pieces 30, 31 leave both the contact 24 and the contact 25, and with further movement they run simultaneously onto both the contact 26 and the contact 25.
  • Figure 6 shows the basic circuit of such a double-pole switching preselector, acting here as a turner.
  • FIGS. 7 and 8 show a complete tap changer with a selection according to the invention, arranged on the side, here with the first embodiment shown in FIGS. 2 and 3 with a single break.
  • the actual tap changer is designed here as a load selector and is located in an insulating cylinder 37. Inside, a rotating isolating rod 38 runs longitudinally through the tap changer, which has a switching element 39.1, 39.2, 39.3 for each of the three phases with the movable contacts and others Switching means carries.
  • the fixed tap changer contacts which can be connected, are arranged in the wall of the insulating material cylinder 37. Since the function of such a load selector is well known, the remaining components are not discussed in detail.
  • the selector according to the invention is located in an insulating cylinder 1 on the side of the tap changer, fastened to it by a traverse 45. Inside this insulating cylinder 1 there is the switching rod 5, and for each of the three phases the three fixed selection contacts already described are arranged, ie the Contacts 2.1, 3.1, 4.1 in a horizontal plane for one phase, contacts 2.2., 3.2., 4.2 in a further horizontal plane for the second phase and contacts 2.3, 3.3, 4.3 finally for the third phase in a third horizontal plane , Corresponding to the respective contacts, a preselector contact bridge 6.1, 6.2, 6.3 is arranged for each phase.
  • the contact pieces of the preselector contact bridges 6.1, 6.2, 6.3 leave the corresponding contacts 2.1, 2.2, 2.3, the "+" contacts, run to the respective "0" in all three phases.
  • -Contacts 3.1, 3.2, 3.3 down and finally contact the respective "-" contacts 4.1, 4.2, 4.3.
  • the areas of the fixed preselector contacts are shielded by upper shields 40.1a, 40.2a, 40.3a and lower shields 40.1b, 40.2b.
  • the switching rod 5 is provided with a lever 41 which is mounted in a bearing 43 in the region of the tap changer head by means of a cross bolt 42.
  • This cross pin 42 is in turn connected to a crank 44 which pivots at its free end a pivoting movement of the Maltese drive of the tap changer.
  • the pivoting movement of the crank 44 which also marks the bearing point, is transferred to a pivoting movement of the lever 41 in the vertical direction, which is transmitted to the shift rod 5.
  • the actuating mechanism described is articulated on an upper crossmember 46, which at the same time realizes the upper fastening of the preselector on the tap changer.

Landscapes

  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Push-Button Switches (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Lock And Its Accessories (AREA)
  • Slide Switches (AREA)
  • Protection Of Transformers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Tumbler Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Circuit Breakers (AREA)
  • Breakers (AREA)
EP99927873A 1998-08-12 1999-06-04 Stufenschalter mit einem vorwähler Expired - Lifetime EP1105896B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19836463 1998-08-12
DE19836463A DE19836463C1 (de) 1998-08-12 1998-08-12 Stufenschalter mit einem Vorwähler
PCT/EP1999/003868 WO2000010182A1 (de) 1998-08-12 1999-06-04 Stufenschalter mit einem vorwähler

Publications (2)

Publication Number Publication Date
EP1105896A1 EP1105896A1 (de) 2001-06-13
EP1105896B1 true EP1105896B1 (de) 2002-04-10

Family

ID=7877255

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99927873A Expired - Lifetime EP1105896B1 (de) 1998-08-12 1999-06-04 Stufenschalter mit einem vorwähler

Country Status (19)

Country Link
US (1) US6849813B1 (ja)
EP (1) EP1105896B1 (ja)
JP (1) JP4588880B2 (ja)
KR (1) KR100407621B1 (ja)
CN (1) CN1123020C (ja)
AT (1) ATE216124T1 (ja)
AU (1) AU4506699A (ja)
BG (1) BG63834B1 (ja)
BR (1) BR9907917B1 (ja)
CA (1) CA2340262A1 (ja)
CZ (1) CZ297115B6 (ja)
DE (2) DE19836463C1 (ja)
HK (1) HK1036875A1 (ja)
HU (1) HU223889B1 (ja)
PL (1) PL192641B1 (ja)
RO (1) RO118989B1 (ja)
RU (1) RU2219609C2 (ja)
UA (1) UA53800C2 (ja)
WO (1) WO2000010182A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103855A1 (de) 2012-05-03 2013-11-07 Maschinenfabrik Reinhausen Gmbh Wähler für einen Stufenschalter

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19923722C1 (de) * 1999-05-22 2000-10-12 Reinhausen Maschf Scheubeck Kontaktanordnung an einem Vorwähler
NO316818B1 (no) * 2002-03-25 2004-05-18 Vetco Aibel As Bryteranordning for undersjoisk kraftdistribusjon
US7750257B2 (en) * 2004-06-03 2010-07-06 Cooper Technologies Company Molded polymer load tap changer
DE102005031359B3 (de) * 2005-06-30 2007-01-25 Siemens Ag Stufenschalter
JP2007265995A (ja) * 2006-03-13 2007-10-11 Visteon Global Technologies Inc 低電圧範囲用の電力スイッチ及び低電圧電気モータ用の階段型回転速度調整装置
CN1933055B (zh) * 2006-09-12 2010-08-04 武汉泰普变压器开关有限公司 一种变压器用无励磁笼形分接开关
DE102007023124B3 (de) * 2007-05-16 2008-10-02 Maschinenfabrik Reinhausen Gmbh Schaltanordnung
US7649147B2 (en) * 2007-09-14 2010-01-19 Riming Xiao Off-circuit tap changer device
CA2748578A1 (en) * 2008-12-29 2010-07-08 Abb Technology Ag An improved reversing switch and a method of retrofitting
EP2244272B1 (en) * 2009-04-20 2012-06-06 ABB Technology Ltd Measuring contact sequence in a tap changer
DE102009025358B4 (de) 2009-06-18 2013-06-20 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit einem Vorwähler
CN101692392B (zh) 2009-09-08 2011-05-11 武汉泰普变压器开关有限公司 一种变压器用无励磁笼形正反调压分接开关
DE102009060132B3 (de) * 2009-12-23 2011-05-12 Maschinenfabrik Reinhausen Gmbh Stufenschalter mit Polungsschalter an einem Regeltransformator
DE102010008973B4 (de) * 2010-02-24 2015-11-05 Maschinenfabrik Reinhausen Gmbh Stufenschalter des Hybridtyps mit Halbleiterschaltelementen
CN103534777B (zh) * 2011-03-25 2016-03-09 Abb技术有限公司 改进的抽头变换器
DE202012101475U1 (de) * 2012-04-20 2013-07-23 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE202012101477U1 (de) * 2012-04-20 2013-07-23 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102012103490B4 (de) * 2012-04-20 2015-11-12 Maschinenfabrik Reinhausen Gmbh Verteiltransformator zur Spannungsregelung von Ortsnetzen
DE102013102299B4 (de) * 2013-03-08 2014-12-04 Maschinenfabrik Reinhausen Gmbh Linearwähler
DE102013210136A1 (de) * 2013-05-30 2014-12-04 Siemens Aktiengesellschaft Elektrisches Schaltgerät
DE102013110656A1 (de) * 2013-09-26 2015-03-26 Maschinenfabrik Reinhausen Gmbh Stufenschalter
DE102014112763A1 (de) 2014-09-04 2016-03-10 Maschinenfabrik Reinhausen Gmbh Schaltanordnung für einen Regeltransformator, insbesondere Vorwähler
EP3086342A1 (en) 2015-04-21 2016-10-26 ABB Technology Ltd A fixed contact for a tap changer and a method for mounting a cable lug thereto
CN106710906B (zh) * 2017-01-20 2018-08-17 济南爱迪电气设备有限公司 一种配电变压器专用有载调压开关
EP3758034A1 (en) * 2019-06-25 2020-12-30 ABB Power Grids Switzerland AG Multi-phase selector-preselector apparatus for on-load tap changer

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DE1249990B (ja) 1967-09-14
NL215957A (ja) * 1957-04-01
NL123797C (ja) * 1961-06-22
NL130853C (ja) 1965-06-30
NL147874B (nl) * 1967-10-10 1975-11-17 Smit Nijmegen Electrotec Transformator met een regelschakelaar.
BE758459A (fr) 1969-11-03 1971-04-16 Reinhausen Maschf Scheubeck Pont de contact pour sélecteurs de gradins destinés à des transformateurs de réglage
DE2210642B2 (de) * 1972-03-06 1976-06-24 Transformatoren Union Ag, 7000 Stuttgart Umsteller fuer stufentransformatoren
DE7313686U (de) 1973-04-11 1973-07-12 Gebr Scheubeck Maschinenfabrik Reinhausen Kg Dreiphasiger stufenschalter
JPS50129918A (ja) * 1974-03-30 1975-10-14
KR830005690A (ko) * 1981-02-13 1983-09-09 에베하르트 피쉐에르 빌헤름 타페르트 탭변압기에 있어서 극성접촉자(polarity contact)을 가진 탭스위치
IN169357B (ja) 1986-07-05 1991-09-28 Reinhausen Maschf Scheubeck
DE3827385A1 (de) * 1988-08-12 1990-02-15 Reinhausen Maschf Scheubeck Zylindrischer stufenwaehler mit durch einen tragarm aus isolierstoff gefuehrter kontaktbruecke
DE3840528A1 (de) * 1988-12-01 1990-06-07 Reinhausen Maschf Scheubeck Einstufig betaetigbarer zylindrischer stufenwaehler fuer stufentransformatoren
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DE9308424U1 (de) * 1992-10-16 1994-02-17 Reinhausen Maschf Scheubeck Stufenwähler mit Mehrfach-Grobwähler für Stufenschalter
DE19923722C1 (de) * 1999-05-22 2000-10-12 Reinhausen Maschf Scheubeck Kontaktanordnung an einem Vorwähler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012103855A1 (de) 2012-05-03 2013-11-07 Maschinenfabrik Reinhausen Gmbh Wähler für einen Stufenschalter
WO2013164211A1 (de) 2012-05-03 2013-11-07 Maschinenfabrik Reinhausen Gmbh Wähler für einen stufenschalter
DE102012103855B4 (de) * 2012-05-03 2016-01-07 Maschinenfabrik Reinhausen Gmbh Wähler für einen Stufenschalter

Also Published As

Publication number Publication date
CN1123020C (zh) 2003-10-01
CZ20001327A3 (cs) 2000-08-16
BR9907917B1 (pt) 2013-05-28
BG104588A (en) 2001-01-31
BR9907917A (pt) 2001-09-11
EP1105896A1 (de) 2001-06-13
UA53800C2 (uk) 2003-02-17
KR20010071953A (ko) 2001-07-31
HU223889B1 (hu) 2005-03-29
WO2000010182A1 (de) 2000-02-24
DE19836463C1 (de) 1999-10-21
RU2219609C2 (ru) 2003-12-20
JP2002522918A (ja) 2002-07-23
DE59901215D1 (de) 2002-05-16
JP4588880B2 (ja) 2010-12-01
BG63834B1 (bg) 2003-02-28
CN1275240A (zh) 2000-11-29
AU4506699A (en) 2000-03-06
RO118989B1 (ro) 2004-01-30
HUP0100174A3 (en) 2002-09-30
HUP0100174A2 (hu) 2001-05-28
HK1036875A1 (en) 2002-01-18
PL351754A1 (en) 2003-06-16
KR100407621B1 (ko) 2003-11-28
CZ297115B6 (cs) 2006-09-13
US6849813B1 (en) 2005-02-01
PL192641B1 (pl) 2006-11-30
ATE216124T1 (de) 2002-04-15
CA2340262A1 (en) 2000-02-24

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