EP1620871B1 - Lastumschalter für einen stufenschalter - Google Patents

Lastumschalter für einen stufenschalter Download PDF

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Publication number
EP1620871B1
EP1620871B1 EP04718920A EP04718920A EP1620871B1 EP 1620871 B1 EP1620871 B1 EP 1620871B1 EP 04718920 A EP04718920 A EP 04718920A EP 04718920 A EP04718920 A EP 04718920A EP 1620871 B1 EP1620871 B1 EP 1620871B1
Authority
EP
European Patent Office
Prior art keywords
contact
permanent main
main contact
movable
erosion
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
EP04718920A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1620871A2 (de
Inventor
Günter Kloth
Silke Wrede
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 EP1620871A2 publication Critical patent/EP1620871A2/de
Application granted granted Critical
Publication of EP1620871B1 publication Critical patent/EP1620871B1/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
    • 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
    • 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
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/56—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing

Definitions

  • the invention relates to a diverter switch for a tap changer with power-switching permanent main contacts for each phase.
  • Such a diverter switch is from the DE 100 50 895 C1 known. It has for each phase to be switched on two permanent main contact pairs, which can be bridged by a single, movable, electrically conductive permanent main contact, which is pivotable in two different end positions, alternatively. In each case, one of the two permanent main contact pairs is bridged in the stationary state and performs the continuous current, such that at the beginning of each load switching the tap changer the previously the continuous current leading a permanent main contact pair is opened and at the end of each load switching - after the entire switching sequence - the previously opened other Permanent main contact pair is bridged and takes over the continuous current.
  • a centrally extending switching shaft is arranged in the interior of the diverter switch, through which the movable, electrically conductive permanent main contact - so the bridging contact, can be actuated.
  • Each permanent main contact pair consists of a first and a second permanent main contact, which are electrically isolated from each other.
  • One of these first permanent main contacts is electrically connected to one side A, the other of these first permanent main contacts to the other side B of the diverter switch.
  • the two second permanent main contacts are electrically connected to a common load dissipation of the diverter switch.
  • the movable permanent main contact has a ramp surface formed in such a way that it is permanently connected to the two second permanent main contacts of both permanent main contact pairs, which are electrically connected to the load dissipation, and slides or rolls on them. In a certain area he deviates from such a contour that laterally contact surfaces are formed so that he only electrically contacted in each of the two possible end positions alternatively one of the respective first permanent main contacts one of the two permanent main contact pairs.
  • the side A of the diverter switch is connected to the load lead, in the other end position, the side B of the diverter switch is connected to the load derivation.
  • the wiring of the respective first permanent main contacts of the two permanent main contact pairs, which are electrically connected to the side A or B, takes place in such a way that the movable permanent main contact, when it is pivoted into one of its end positions, the respective first permanent main contact, more precisely its individual contact blades, against the force of the respective contact springs to which they are hinged, presses outwards, so they spread apart.
  • the object of the invention is therefore to provide a diverter switch of the type mentioned, in which the described permanent main contact pairings can be operated in a simple manner and without affecting the electrical resistance.
  • the general idea underlying the invention is that the direction in which the resiliently articulated contact blades of the respective first permanent main contacts are deflectable against the corresponding spring force, at least approximately the Auf Economicscardi of the movable permanent main contact, more precisely the contour of the movable permanent main contact corresponds.
  • the movable permanent main contact strikes the respective contact blades precisely in its deflection direction; this is kinematically comparable to the collision of two railway buffers, one of which is spring-loaded. This is done Impact very quickly, ie with high contact closure or opening speed. This results in a good dielectric strength, since within a short time a relatively high distance from the movable permanent main contact is covered.
  • the supporting element of this diverter switch is a base plate 1, which receives and carries the movable permanent main contacts and the means for their operation for each phase.
  • a complete permanent main contact 2 is shown.
  • Fixed permanent main contact pairs 3, 4 are, cooperating with this, on the inner wall of an oil vessel, not shown, which encloses the entire diverter switch, attached.
  • three contact carriers 5, 6, 7 are provided for each phase.
  • the first permanent permanent main pair of contacts 3 consisting of fixed down main contacts 8 arranged at the bottom, which are electrically connected to one side A of the diverter switch, and arranged above fixed permanent main contacts 9, which lead to the common load dissipation of the diverter switch.
  • each of the permanent permanent main contacts 8 and 9 consists of a plurality of individual contact blades 8.1 and 9.1.
  • Each of the contact blades 8.1 and 9.1 is articulated resiliently by means of contact springs 10 and 11, respectively.
  • the second fixed permanent main contact pair 4 This consists quite analogous from below arranged fixed permanent main contacts 12, which are electrically connected to the other side B of the diverter switch and arranged over permanent permanent main contacts 13, which lead to the common load discharge.
  • the fixed permanent main contacts 9 and 13 are arranged on the first electrically conductive contact carrier 5 and form the common load dissipation.
  • the fixed permanent main contacts 8 are arranged on the second contact carrier 6 and connected to the side A of the diverter switch, and the fixed permanent main contacts 12 are electrically isolated therefrom, arranged on the third contact carrier 7 and connected to the side B of the diverter switch.
  • a common movable permanent main contact 16 this electrically conductive, is provided. He has in the upper part on its left side a ramp surface 17 which corresponds to the fixed permanent main contacts 9, and on its right side a ramp surface 18 which corresponds to the fixed permanent main contacts 13. In its lower part, it has on the left side a contact surface 19, which corresponds to the fixed permanent main contacts 8 and on the right side quite analogously another contact surface 20, which in turn corresponds to the fixed permanent main contacts 12.
  • the movable permanent main contact 16 has a bearing 21, not shown in detail, such that it is pivotable about a central position in the longitudinal axis of the diverter switch. By two double arrows, the Verschwenkweg the permanent main contact 16 is indicated in the figures.
  • the two ramp surfaces 17, 18 are, as known in the prior art, such spherical dimensioned that when pivoting the movable permanent main contact 16 to its bearing 21 constantly with the fixed permanent main contacts 9 and 13, as explained above, both with the electrical load dissipation of the diverter switch are connected, remain in contact; This takes place in the form of a sliding or rolling. In other words, the electrical connection of the movable permanent main contact 16 to the load dissipation remains permanent, regardless of the position of the movable permanent main contact 16th
  • the two respectively arranged below contact surfaces 19 and 20 of the movable permanent main contact 16 are formed such that they only in the pivoting of the movable permanent main contact 16 in one of its two end positions in contact with the respective corresponding permanent permanent main contacts 8 or 12 come into contact.
  • the articulation of the contact blades 8.1 or 12.1 on the contact springs 10 and 14 in such a way that the longitudinal axis of the contact springs 10, 14 each extending in the same direction as the direction of impact of the respective contact surface 19 or 20. This has the effect that the movable permanent main contact 16 when hitting the respective contact blades 8.1 or 12.1 in the respective end position this deflects exactly in its direction of movement against the spring force, without any emergence or a lateral spreading takes place.
  • FIG. 2 shows a section in the plane AA.
  • FIG. 2 is the coincidence of the direction of movement of movable permanent main contact 16 and the longitudinal direction of the corresponding contact springs 10 and 14 - depending on the end position - again shown in detail.
  • the direction of movement of the movable permanent main contact 16 when reaching an end position and the deflection direction of the contact blades 8.1 of the fixed permanent main contact 8, to which he encounters are illustrated by arrows.
  • the other end position of the permanent main contact 16, in which he meets in a very analogous manner to the contact blades 12.1 of the fixed permanent main contact 12 are indicated by a thin dashed line.
  • FIG. 4 shows a sectional view in the plane BB.
  • the fixed permanent main contact 8 has a specially designed top burnout contact blade 22, as well as the fixed permanent main contact 9 a corresponding AbbrandWalletlamelle 23.
  • the Abbrand.lamellen 22, 23 each have a AbbrandWalletcommunication 24th , 25 made of particularly erosion-resistant material, eg. As tungsten-copper, on. Accordingly, the movable permanent main contact 16 in the corresponding region of the contact with the AbbrandWalletlamellen 22, 23 each have a particular AbbrandWalletcommun 26, 27 with the same properties described.
  • the resilient fixed Abbrand.lamellen 22, 23 and the AbbrandCountein accounts 26, 27 on the movable permanent main contact 16 are geometrically formed so that they at a switching movement of the permanent main contact 16 on the corresponding side A or B, on the is switched to come as the first in contact with each other, ie before the other, not equipped with this special material, contact blades 8.1 and 9.1 are switched.
  • contact blades 8.1 and 9.1 are switched.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Contacts (AREA)
  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Protection Of Transformers (AREA)
  • Push-Button Switches (AREA)
  • Slide Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Control Of Electrical Variables (AREA)
EP04718920A 2003-03-19 2004-03-10 Lastumschalter für einen stufenschalter Expired - Lifetime EP1620871B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10312176A DE10312176B3 (de) 2003-03-19 2003-03-19 Lastumschalter für einen Stufenschalter
PCT/EP2004/002445 WO2004084241A2 (de) 2003-03-19 2004-03-10 Lastumschalter für einen stufenschalter

Publications (2)

Publication Number Publication Date
EP1620871A2 EP1620871A2 (de) 2006-02-01
EP1620871B1 true EP1620871B1 (de) 2008-09-17

Family

ID=32309076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04718920A Expired - Lifetime EP1620871B1 (de) 2003-03-19 2004-03-10 Lastumschalter für einen stufenschalter

Country Status (11)

Country Link
US (1) US6998547B2 (zh)
EP (1) EP1620871B1 (zh)
JP (1) JP4403175B2 (zh)
KR (1) KR101015495B1 (zh)
CN (1) CN100437854C (zh)
AT (1) ATE408886T1 (zh)
BR (1) BRPI0406208B1 (zh)
DE (2) DE10312176B3 (zh)
ES (1) ES2311808T3 (zh)
HK (1) HK1085836A1 (zh)
WO (1) WO2004084241A2 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005027527B3 (de) * 2005-06-15 2006-08-17 Maschinenfabrik Reinhausen Gmbh Kraftspeicher
DE102005027524B3 (de) * 2005-06-15 2006-10-12 Maschinenfabrik Reinhausen Gmbh Kraftspeicher
DE102010015051B4 (de) * 2010-04-15 2012-06-14 Maschinenfabrik Reinhausen Gmbh Mechanischer Schaltkontakt
DE102010020180A1 (de) 2010-05-11 2011-11-17 Maschinenfabrik Reinhausen Gmbh Lastumschalter für einen Stufenschalter
DE102010050264A1 (de) * 2010-11-02 2012-05-03 Maschinenfabrik Reinhausen Gmbh Mechanischer Schalter für einen Laststufenschalter
US9417639B2 (en) 2014-03-24 2016-08-16 Brandon & Clark, Inc. Non-bridging position tap changer control and method of operation
DE102014107273B4 (de) * 2014-05-23 2016-10-27 Maschinenfabrik Reinhausen Gmbh Schalter für eine Schaltvorrichtung und Lastumschalter für einen Laststufenschalter eines Stelltransformators
UA124231C2 (uk) * 2015-08-28 2021-08-11 Машіненфабрік Райнхаузен Гмбх Силовий перемикач для силового ступінчастого перемикача, а також основний перемикач тривалого навантаження і роз'єднувач для нього
CN112133584B (zh) * 2020-10-15 2023-03-31 施耐德万高（天津）电气设备有限公司 一种旋转型插入式触头

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL120901C (zh) 1963-05-17
SE335174B (zh) 1966-07-27 1971-05-17 Reinhausen Maschf Scheubeck
US3624319A (en) * 1970-04-16 1971-11-30 Westinghouse Electric Corp Transformer switch with improved rotary axial bridging contact structure
US3902030A (en) * 1973-08-31 1975-08-26 Laurentiv Popa Diverter switch for on-load changers
US4112274A (en) * 1976-02-04 1978-09-05 General Power Corp. Electrical control
DE3401297A1 (de) * 1984-01-16 1985-07-18 Transformatoren Union Ag, 7000 Stuttgart Lastwaehler fuer stufentransformatoren
IN169357B (zh) * 1986-07-05 1991-09-28 Reinhausen Maschf Scheubeck
DE3928359C1 (zh) * 1989-08-28 1991-01-24 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
DE4016428C1 (zh) * 1990-05-22 1991-11-07 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
DE4141142C1 (zh) * 1991-12-13 1993-04-08 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
SE500609C2 (sv) * 1992-07-09 1994-07-25 Asea Brown Boveri Lindningskopplare
DE19510809C1 (de) * 1995-03-24 1996-07-04 Reinhausen Maschf Scheubeck Lastumschalter eines Stufenschalters
DE19542880C1 (de) * 1995-11-17 1997-02-20 Reinhausen Maschf Scheubeck Fester Polungskontakt für Stufenschalter
DE10050895C1 (de) * 2000-10-13 2002-08-08 Reinhausen Maschf Scheubeck Lastumschalter für einen Stufenschalter
DE10050932C1 (de) * 2000-10-13 2002-06-13 Reinhausen Maschf Scheubeck Kraftspeicher für einen Stufenschalter
US6693248B1 (en) * 2002-10-28 2004-02-17 General Electric Company Methods and apparatus for transferring electrical power

Also Published As

Publication number Publication date
KR101015495B1 (ko) 2011-02-22
CN100437854C (zh) 2008-11-26
JP4403175B2 (ja) 2010-01-20
US6998547B2 (en) 2006-02-14
WO2004084241A3 (de) 2006-02-23
ES2311808T3 (es) 2009-02-16
US20050205394A1 (en) 2005-09-22
KR20050113593A (ko) 2005-12-02
ATE408886T1 (de) 2008-10-15
JP2006520535A (ja) 2006-09-07
EP1620871A2 (de) 2006-02-01
DE10312176B3 (de) 2004-06-09
CN1836299A (zh) 2006-09-20
BRPI0406208B1 (pt) 2016-10-25
WO2004084241A2 (de) 2004-09-30
BRPI0406208A (pt) 2005-08-09
HK1085836A1 (en) 2006-09-01
DE502004008089D1 (de) 2008-10-30

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