EP1620871A2 - Commutateur de reglage en charge pour combinateur - Google Patents

Commutateur de reglage en charge pour combinateur

Info

Publication number
EP1620871A2
EP1620871A2 EP04718920A EP04718920A EP1620871A2 EP 1620871 A2 EP1620871 A2 EP 1620871A2 EP 04718920 A EP04718920 A EP 04718920A EP 04718920 A EP04718920 A EP 04718920A EP 1620871 A2 EP1620871 A2 EP 1620871A2
Authority
EP
European Patent Office
Prior art keywords
contact
permanent main
erosion
movable
main contact
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
EP04718920A
Other languages
German (de)
English (en)
Other versions
EP1620871B1 (fr
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/fr
Application granted granted Critical
Publication of EP1620871B1 publication Critical patent/EP1620871B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 permanent main contacts that switch off for each phase.
  • Such a diverter switch is known from DE 100 50 895 C1.
  • it has two permanent main contact pairs that can alternatively be bridged by a single, movable, electrically conductive permanent main contact that can be pivoted into two different end positions.
  • One of the two permanent main contact pairs is bridged in the steady state and carries the continuous current in such a way that at the beginning of each load changeover of the tap changer, the permanent main contact pair that previously carried the continuous current is opened, and at the end of each load changeover - after the entire changeover sequence has ended - the other one opened so far Main contact pair is bridged and takes over the continuous current.
  • a central switching shaft is arranged in the interior of the diverter switch, through which the movable, electrically conductive permanent main contact - the bridging contact, can be actuated.
  • Each permanent main contact pair consists of a first and a second permanent main contact, which are electrically insulated from one another.
  • 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 derivation of the diverter switch.
  • the movable permanent main contact has a balancing designed contact surface that it is constantly connected to the two second permanent main contacts of both permanent main contact pairs, which are electrically connected to the load transfer, and slides or rolls on them.
  • connection of the 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 presses individual contact lamella outwards against the force of the respective contact springs to which they are articulated, thus spreading them apart.
  • the known solution also requires a very great deal high dimensional accuracy of both movable permanent contact and contact lamella; Even the smallest manufacturing tolerances can cause the friction to increase in such a way that the movable permanent main contact can no longer fully switch onto the lamellae of the respective fixed permanent main contact and the entire diverter switch does not reach its end position or only with difficulty.
  • 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 actuated in a simple manner and without impairing the electrical strength.
  • the general idea underlying the invention is that the direction in which the resiliently articulated contact lamellae of the first permanent main contacts can be deflected against the corresponding spring force corresponds at least approximately to the direction of impact of the movable permanent main contact, more precisely the contour of the movable permanent main contact.
  • the movable permanent main contact strikes the respective contact lamellae exactly in their deflection direction; this is roughly comparable kinematically to the collision of two railway buffers, one of which is sprung. This is done Impact very quickly, ie with a high contact closing or opening speed. This results in a good dielectric strength, since a relatively long distance from the movable permanent main contact is covered within a short time.
  • Fig. 1 shows a first diverter switch according to the invention with permanent main contacts in a schematic, perspective view, a number of components and switching means, which are not absolutely necessary to explain the invention, are omitted for reasons of better clarity
  • Fig. 2 is also a schematic sectional view of the fixed permanent main contacts in a first plane A-A according to Figure 1 in cooperation with the movable permanent main contact of this first diverter switch according to the invention
  • Fig. 3 shows a second diverter switch according to the invention in a schematic, perspective
  • FIG. 4 again shows a schematic sectional illustration of the fixed permanent main contacts in a second plane B-B according to FIG. 3 in cooperation with the movable permanent main contact of this second diverter switch according to the invention.
  • the schematic sectional illustration in the plane A-A according to FIG. 3 is identical to FIG. 2.
  • the load-bearing element of this diverter switch is a base plate 1, which receives and carries the movable permanent main contacts and the means for their actuation for each phase. Only such a complete permanent main contact 2 is shown here.
  • Fixed permanent main contact pairs 3, 4 are, cooperating with this, attached to the inner wall of an oil vessel, not shown, which encloses the entire diverter switch.
  • three contact carriers 5, 6, 7 are provided for each phase.
  • each of the fixed permanent main contacts 8 and 9 consists of a large number of individual contact lamellae 8.1 and 9.1.
  • Each of the contact lamellae 8.1 and 9.1 is articulated by means of contact springs 10 and 11, respectively.
  • the second fixed permanent main contact pair 4 On the right-hand side there is the second fixed permanent main contact pair 4.
  • each of the permanent permanent main contacts 12 and 13 consists of a large number of individual contact laminations 12.1 and 13.1, which in turn are articulated individually by contact springs 14 and 15.
  • the fixed permanent main contacts 9 and 13 are arranged on the first electrically conductive contact carrier 5 and form the common load transfer.
  • 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 which is electrically conductive, is provided. It has in the upper area on its left side a contact surface 17 which corresponds to the fixed permanent main contacts 9, and on its right side a contact surface 18 which corresponds to the fixed permanent main contacts 13. In its lower area, it has on the left side a contact surface 19 which corresponds to the fixed permanent main contacts 8 and, analogously, on the right side a further 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, such that it can be pivoted about a central position in the longitudinal axis of the diverter switch. The pivoting path of the permanent main contact 16 is indicated in the figures by two double arrows.
  • the two contact surfaces 17, 18 are, as is known from the prior art, dimensioned spherical in such a way that when the movable permanent main contact 16 is pivoted about its bearing 21, they are constantly connected to the fixed permanent main contacts 9 and 13, both of which, as explained above, with the electrical load transfer of the diverter switch are connected, remain in contact; this takes the form of sliding or rolling.
  • 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 16.
  • the two contact surfaces 19 and 20, respectively, of the movable permanent main contact 16 arranged underneath are designed such that they only come into contact with the respective one when the movable permanent main contact 16 is pivoted into one of its two end positions corresponding permanent permanent main contacts 8 or 12 come into contact.
  • the articulation of the contact lamellae 8.1 or 12.1 on the contact springs 10 or 14 takes place in such a way that the longitudinal axis of the contact springs 10, 14 each extend in the same direction as the direction of impact of the respective contact surface 19 or 20.
  • the effect of this is that the movable permanent main contact 16 deflects the respective contact lamella 8.1 or 12.1 in the respective end position exactly in its direction of movement against the spring force without opening or lateral spreading.
  • Figure 2 shows a section in the plane A-A.
  • the correspondence between the direction of movement of the movable permanent main contact 16 and the longitudinal direction of the corresponding contact springs 10 and 14 is shown again in detail, depending on the end position.
  • the direction of movement of the movable permanent main contact 16 when reaching an end position and the deflection direction of the contact lamellae 8.1 of the fixed permanent main contact 8, which it encounters, are illustrated by arrows.
  • the other end position of the permanent main contact 16, in which it meets the contact lamellae 12.1 of the fixed permanent main contact 12 in a completely analogous manner, is indicated by a thin dashed line.
  • FIGS. 3 and 4 A second, further developed diverter switch according to the invention is to be described below, as shown in FIGS. 3 and 4.
  • Identical parts are provided with identical reference symbols; the arrangement and mode of operation of the parts designated by the reference numerals 1 to 21 is unchanged from the first exemplary embodiment explained above, which is why a repetition is omitted here.
  • Figure 4 shows a sectional view in the plane B-B.
  • the fixed permanent main contact 8 here has a specially designed erosion contact lamella 22 arranged at the top, as does the fixed permanent main contact 9 a corresponding erosion contact lamella 23.
  • the erosion contact lamellae 22, 23 each have an erosion contact insert 24 , 25 made of particularly erosion-resistant material, e.g. B, tungsten copper, on.
  • the movable permanent main contact 16 in the corresponding area of contact with the erosion contact lamellae 22, 23 also has a particular erosion contact insert 26, 27 with the same properties described,
  • the resiliently arranged erosion contact lamellae 22, 23 and the erosion contact inserts 26, 27 on the movable permanent contact 16 are geometrically designed such that they move onto the corresponding side A or B when the permanent main contact 16 switches is switched, be the first to come into contact with one another, ie be switched in front of the other contact lamellae 8.1 or 9.1 not equipped with this special material.
  • the fixed erosion contact blades 22, 23 are the last to be out of contact with the corresponding erosion contact insert 26, 27 - only after all the other contact blades 8.1 and 9.1 are already out of contact have arrived.
  • the embodiment of the diverter switch shown in FIGS. 3 and 4 thus has two additional advantages. On the one hand, it is not necessary to equip all contact laminations with the expensive tungsten-copper material. On the other hand, in the case of inspections or the like, only the erosion contact blades 22, 23 and the erosion contact inserts 26, 27 need to be replaced in a simple manner; practically no wear occurs at the other contact pairs. In order to further facilitate the replacement of the erosion contact inserts 26, 27, in a special development of the invention, these are screwed separately to the movable permanent main contact 16 by means of screws 28, 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Contacts (AREA)
  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Push-Button Switches (AREA)
  • Slide Switches (AREA)
  • Control Of Electrical Variables (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Keying Circuit Devices (AREA)
  • Protection Of Transformers (AREA)

Abstract

L'invention concerne un commutateur de réglage en charge destiné à un combinateur. Ce commutateur comprend pour chaque phase à commuter deux paires de contacts principaux permanents, les contacts fixes étant pontés respectivement par un contact principal permanent mobile. Les contacts principaux permanents fixes sont constitués d'une pluralité de lamelles de contact articulées au moyen de ressorts de contact, de telle sorte que la direction d'élongation des lamelles de contact individuelles corresponde respectivement à la direction d'impact du contact principal permanent mobile.
EP04718920A 2003-03-19 2004-03-10 Commutateur de reglage en charge pour combinateur Expired - Lifetime EP1620871B1 (fr)

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 (fr) 2003-03-19 2004-03-10 Commutateur de reglage en charge pour combinateur

Publications (2)

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

Family

ID=32309076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04718920A Expired - Lifetime EP1620871B1 (fr) 2003-03-19 2004-03-10 Commutateur de reglage en charge pour combinateur

Country Status (11)

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

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
BR112018003926B1 (pt) * 2015-08-28 2024-03-05 Maschinenfabrik Reinhausen Gmbh Comutador de carga para um comutador de derivação de carga e comutador principal contínuo e comutador de desconexão para o mesmo
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 (fr) * 1963-05-17
SE335174B (fr) * 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 (fr) * 1986-07-05 1991-09-28 Reinhausen Maschf Scheubeck
DE3928359C1 (fr) * 1989-08-28 1991-01-24 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
DE4016428C1 (fr) * 1990-05-22 1991-11-07 Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
DE4141142C1 (fr) * 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004084241A2 *

Also Published As

Publication number Publication date
KR101015495B1 (ko) 2011-02-22
ES2311808T3 (es) 2009-02-16
US20050205394A1 (en) 2005-09-22
EP1620871B1 (fr) 2008-09-17
WO2004084241A2 (fr) 2004-09-30
DE502004008089D1 (de) 2008-10-30
KR20050113593A (ko) 2005-12-02
WO2004084241A3 (fr) 2006-02-23
ATE408886T1 (de) 2008-10-15
CN1836299A (zh) 2006-09-20
BRPI0406208B1 (pt) 2016-10-25
DE10312176B3 (de) 2004-06-09
HK1085836A1 (en) 2006-09-01
US6998547B2 (en) 2006-02-14
JP4403175B2 (ja) 2010-01-20
CN100437854C (zh) 2008-11-26
JP2006520535A (ja) 2006-09-07
BRPI0406208A (pt) 2005-08-09

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