EP3108492A1 - Dispositif de commutation comprenant un boîtier et un module de commutation interchangeable - Google Patents

Dispositif de commutation comprenant un boîtier et un module de commutation interchangeable

Info

Publication number
EP3108492A1
EP3108492A1 EP15705960.1A EP15705960A EP3108492A1 EP 3108492 A1 EP3108492 A1 EP 3108492A1 EP 15705960 A EP15705960 A EP 15705960A EP 3108492 A1 EP3108492 A1 EP 3108492A1
Authority
EP
European Patent Office
Prior art keywords
switching module
switching
switching device
housing
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
EP15705960.1A
Other languages
German (de)
English (en)
Other versions
EP3108492B1 (fr
Inventor
Alexander Reich
Simon Flotzinger
Nikolaus Unterreiner
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 EP3108492A1 publication Critical patent/EP3108492A1/fr
Application granted granted Critical
Publication of EP3108492B1 publication Critical patent/EP3108492B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • 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
    • H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
    • 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
    • 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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing

Definitions

  • Switching device with a housing and a replaceable switching module
  • the invention relates to a switching device, in particular an on-load tap-changer, with a housing and at least one replaceable switching module.
  • On-load tap changers are known from the prior art which use mechanical switching contacts which are arranged in oil or in a vacuum for switching from one winding tap of a tapped transformer to an adjacent winding tapping.
  • new on-load tap-changers use semiconductor switching elements for these switches. Both the maintenance and repair of such semiconductor switching elements are expensive, time-consuming and a great challenge.
  • the invention proposes a switching device, in particular an on-load tap-changer, comprising:
  • At least one fixed contact which is arranged in the interior of the housing
  • At least one guide rail which is arranged in the interior of the housing, wherein:
  • each switch module has at least one loose contact which can be releasably connected to at least one of the fixed contacts;
  • the switching module has at least one lower distribution plate, which is movably connected to at least one of the guide rails.
  • the switching device according to the invention with the exchangeable switching modules offers many advantages.
  • This switching device is compact, so consumes little space and is therefore particularly easy to transport before commissioning. This compactness also requires significantly less insulation or coolant.
  • the possibility of individually exchanging switching modules saves not only costs but also time. Due to the detachable arrangement, the switching modules can easily be pulled out of the housing during repairs or maintenance and replaced by new ones.
  • the switching device can be designed in any desired manner, for example as an on-load tap-changer for step transformers in the low, medium and high voltage range, as well as tap changers for tap-changers in power grid or
  • Each fixed contact and each loose contact may be formed in any manner and, for example, seen from one or more parts and be directly attached in the housing or a separate wall or directly on the switching module.
  • Each fixed contact and each loose contact may also have on the inner side a plurality of juxtaposed and juxtaposed, spring-mounted contact fingers.
  • Each fixed contact is designed to correspond to the associated loose contact and ensures a frictional, positive and electrically conductive connection between the two.
  • the movable connection between the housing and the switching module can be designed in any desired manner, for example via the friction between distributor plate and a guide rail or via rollers on the switching module or in the housing.
  • the housing may be formed in any manner, for example as a tank made of metal or plastic.
  • each fixed contact has a first end and a second end and the first end is arranged inside the housing and the second end outside the housing.
  • the switching module at least one clamping column, at least one upper and at least one lower biasing plate and at least one
  • Each tensioning column can be designed in any desired manner, for example made of glass fiber reinforced plastic, plastic or another insulating material.
  • the switching module column has at least one switching element and at least one cooling box.
  • Each switching element of the switching module column can be designed in any desired manner and, for example, have at least one semiconductor wafer cell which
  • the in particular has at least one thyristor and / or at least one IGBT.
  • switching elements can be connected to each other in parallel or in series. It can be provided that
  • the switching module has an upper distribution plate
  • the loose contact is arranged on a contact board and
  • the distribution plate may be formed in any manner, and for example made of glass fiber reinforced plastic, plastic or other insulating material.
  • each contact has opposite contact fingers, which are resiliently mounted and when contacting a first end of the fixed contact a frictional
  • a pressure distribution unit is arranged between each switching module column and the upper biasing plate.
  • the pressure distribution unit has a flange and a thread
  • a Belleville washer support is disposed in the upper bias plate
  • Disc springs are arranged between the flange and the cup spring support and a force is applied to the pressure distribution unit and thus to the switching module column via the cup springs. It can be provided that at least one slide rail is arranged on the lower side of the first distribution plate.
  • Each slide rail may be formed in any desired manner and, for example, made of Teflon or another material which has a low coefficient of friction. It can be provided that
  • the switching device is designed as an on-load tap changer and is provided or designed for connection or disconnection of windings of a control winding of a tapped transformer under load.
  • 1 shows a switching device with a replaceable switching module.
  • 2 shows a switching device with a switching module in section;
  • 3 shows a switching device with half-inserted switching module
  • Fig. 4a is a detail view of a fixed contact and a loose contact
  • 4b shows a further detailed view of the fixed contact and the loose contact
  • 5 shows a switching device with three switching modules
  • Fig. 6 is a biasing unit of the switching device.
  • the switching module 3 has switching elements 18 which serve to switch from one winding tap to an adjacent winding tap of a control winding in a tap-changer.
  • the switching elements 18 are designed as semiconductor disk cells, for example thyristors, IGBTs, etc. Between the switching elements 18 cooling cans 19 are arranged, which are thermally, mechanically and electrically conductively connected thereto.
  • the alternately arranged switching elements 18 and cooling boxes 19 form a switching module column 36, of which each switching module 3 may have four pieces.
  • the switching module columns 36 are disposed between an upper bias plate 15 and a lower bias plate 16.
  • the cooling boxes 19 have inside cooling channels, not shown here, which are hydraulically connected via lines 14 with each other and with the hollow clamping columns 13.
  • Above the upper bias plate 15 is an upper distribution plate 50 and below the lower bias plate 16 a lower distribution plate 51 is disposed.
  • the switching elements 18 may, on the one hand, be connected to each other in parallel or in series and, on the other hand, to the rear side 101 of the loose contacts 10.
  • the loose contacts 10 are also arranged in a contact board 11. In the embodiment shown here are in the contact board 1 1 eight Losgifte 10 next to or superimposed.
  • the front side 102 of each individual loose contact 10 consists of a plurality of contact fingers 12 which are arranged above and next to one another and which are resiliently mounted in such a way that two contact fingers 12 exert force in the mutually opposite direction (FIGS. 4a and 4b).
  • the housing 2 has on the rear wall 26 a plurality of fixed contacts 20, which extend from the interior to the outside.
  • the first ends 21 of the fixed contacts 20 are arranged inside and the second ends 22 outside of the housing 2.
  • guide rails 25 are mounted on the floor.
  • the front side 28 of the housing 2 is open and can be closed with a cover 29.
  • the second ends 22 of the fixed contacts 20 are connected via lines, with a control winding, not shown here, with different winding taps of a tapped transformer.
  • an ester is filled for cooling and insulation.
  • Fig. 2 is a sectional view of the switching device 1 is shown.
  • the switching module 3 is located in the interior of the housing 2. In this case, the switching module 3 rests on the guide rail 25 and is held by means of fixing means 30 via the lower distribution plate 51.
  • the contact fingers 12 of the Losuttone 10 are mechanically and electrically connected to the first ends 21 of the fixed contacts 20, so switched. Through this mechanical connection, the electrically conductive connection between the loose contacts 10 and the fixed contacts 20 is always ensured, ie the taps of the control winding of a tapped transformer and the switching elements 18 of the on-load tap-changer.
  • a first threaded rod 40 For connecting the loose contacts 10 with the fixed contacts 20, so when inserting the switching module 3, a first threaded rod 40 is used.
  • the first threaded rod 40 rests on the one hand on the first thrust bearing 41 on the front side 28 and on the other hand is guided in a first floating bearing 42 in the contact board 1 1 of the switching module 3.
  • the switching module 3 By rotation of the first threaded rod 40, the switching module 3 is pressed in the direction of the rear wall 26.
  • the loose contacts 10 are pressed onto the fixed contacts 20.
  • the first abutment 41 is arranged in a strut 49 of the housing 2.
  • a second threaded rod 43 is used to release the loose contacts 10 of the fixed contacts 20, so when removing the switching module 3, a second threaded rod 43 is used.
  • the second threaded rod 43 is guided on the one hand in a second movable bearing 45 on the front side 28 and on the other hand, in a second abutment 44 in the contact board 1 1 of the switching module 3.
  • the Losiquee 10 are deducted from the fixed contacts 20.
  • the second movable bearing 45 is arranged in the strut 49 of the housing 2.
  • the first and the second threaded rod 40, 43 can be removed after insertion or after removal from the switching device 1.
  • Fig. 3 shows the switching device 1 in which the switching module 3 is inserted halfway into the housing 2.
  • the switching module 3 slides out of the guide rails 25 via the lower distribution plate 51 or into it.
  • at least one slide rail 55 is arranged on the lower side 53 of the lower distribution plate 51. This is preferably formed of Teflon or other friction-reducing material. After pulling out the switching module 3, this can be pushed onto a transport aid 60, here as a mounting trolley.
  • a transport aid 60 here as a mounting trolley.
  • FIG. 4 a shows a detailed view of two loose contacts 10 of the switching module 3 and the fixed contacts 20, which are fastened in the rear wall 26 of the housing 2, in a non-connected or connected state.
  • 4b shows a detailed view of the loose contacts 10 and fixed contacts 20 in an activated state. This creates a non-positive and positive connection between each fixed contact 20 and 10 Loscard.
  • FIG. 5 shows a switching device 1 with three interchangeable switching modules 3, 3 ', 3 "which are each assigned to at least one control winding of one phase of a tapped transformer
  • One of the switching modules 3 is arranged outside of the housing 2 on a transport aid 60.
  • a handle 54 is arranged, with the extraction of the switching module 3 is facilitated.
  • FIG. 6 shows a detailed view of the switching module 3.
  • a pressure distribution unit 70 is introduced between the uppermost cooling box 19 and the upper biasing plate 15.
  • the pressure distribution unit 70 has a flange 71 in the area facing the cooling box 19.
  • the upper portion of the pressure distribution unit 70 has a thread 72, at its upper end a Nut 74 is arranged.
  • Between the flange 71 and the nut 74 cup springs 73 and a disc spring support 75 are arranged.
  • the pressure distribution unit 70 is pre-set under a press to a defined, required for the switching module 3, biasing force.
  • the plate springs 73 are pressed against the flange 71 during clamping on the disc spring support 75 and locked with the nut 74.
  • the pressure distribution unit 70 is screwed over the disc spring support 75 in the biasing plate 15 until the pressure distribution unit 70 rests against the uppermost cooling box 19 of the switching module column 36.
  • the pressure distribution unit 70 is then locked and secured against rotation. By loosening the nut 74, the defined bias of the plate springs 73 is transmitted to the switching module column 36.
  • each switching module column 30 is clamped by a separate pressure distribution unit 70, the two switching module columns 36 are mechanically decoupled from each other and height differences can thus be compensated.
  • the disc spring support 75 may have a larger diameter than the disc springs 73 and the flange 71 of the pressure distribution unit 70.
  • the pressure distribution unit 70 can be screwed upwards out of the upper biasing plate 15 and thus the biasing force on the switching module columns 36 are released.
  • individual switching elements 18 can be exchanged without the entire switching module 3 must be completely disassembled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

L'invention concerne un dispositif de commutation, en particulier un commutateur en charge, comprenant un boîtier et au moins un module de commutation interchangeable. Le dispositif de commutation (1), en particulier le commutateur en charge, comprend : - un boîtier (2) ; un module de commutation (3, 3', 3") interchangeable ; un contact fixe (20) qui est disposé à l'intérieur du boîtier (2) ; un rail de guidage (25) qui est disposé à l'intérieur du boîtier (2). Le module de commutation (3, 3', 3") comporte un contact lâche (10) qui peut être relié de manière détachable au contact fixe (20). Le module de commutation (3, 3', 3") comporte une plaque de distribution inférieure (51) qui est reliée de manière mobile au rail de guidage (25).
EP15705960.1A 2014-02-21 2015-02-13 Dispositif de commutation comprenant un boîtier et un module de commutation interchangeable Active EP3108492B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201410102263 DE102014102263B3 (de) 2014-02-21 2014-02-21 Laststufenschalter mit einem Gehäuse und einem austauschbaren Schaltmodul
PCT/EP2015/053120 WO2015124508A1 (fr) 2014-02-21 2015-02-13 Dispositif de commutation comprenant un boîtier et un module de commutation interchangeable

Publications (2)

Publication Number Publication Date
EP3108492A1 true EP3108492A1 (fr) 2016-12-28
EP3108492B1 EP3108492B1 (fr) 2019-06-12

Family

ID=52574129

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15705960.1A Active EP3108492B1 (fr) 2014-02-21 2015-02-13 Dispositif de commutation comprenant un boîtier et un module de commutation interchangeable

Country Status (10)

Country Link
US (1) US9972456B2 (fr)
EP (1) EP3108492B1 (fr)
JP (1) JP6522637B2 (fr)
KR (1) KR20160128310A (fr)
CN (1) CN105981119B (fr)
DE (1) DE102014102263B3 (fr)
RU (1) RU2673565C2 (fr)
UA (1) UA120845C2 (fr)
WO (1) WO2015124508A1 (fr)
ZA (1) ZA201604599B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2936136T3 (es) * 2018-09-17 2023-03-14 Microelettrica Scientifica Spa Grupo de agarre para un interruptor que tiene una estructura interna compacta
EP3716324B1 (fr) * 2019-03-25 2021-09-08 ABB S.p.A. Dispositif de commutation à semi-conducteur amélioré du type rétractable
DE102021100145B3 (de) * 2021-01-07 2022-04-07 Maschinenfabrik Reinhausen Gmbh Schaltmodul und laststufenschalter mit schaltmodul

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715543A (en) * 1971-01-12 1973-02-06 Westinghouse Electric Corp Rotary electrical switching contact assembly with hollow insulating arc barrier
DE2104766B1 (de) * 1971-02-02 1972-08-03 Maschinenfabrik Reinhausen Gebr Scheubeck Kg Lastumschalter fur Stufenschalter von Regeltransformatoren
US3783209A (en) * 1972-10-31 1974-01-01 Westinghouse Electric Corp Mechanism for holding and levering large draw out type circuit breakers
US4002865A (en) * 1975-04-02 1977-01-11 Westinghouse Electric Corporation Drawout type circuit interrupter with interlocked levering mechanism
JPS5452644U (fr) * 1977-09-21 1979-04-11
US4532386A (en) * 1983-10-05 1985-07-30 Rte Corporation Dual voltage switch
JPS61192431U (fr) * 1985-05-23 1986-11-29
JPS6398617U (fr) * 1986-12-18 1988-06-25
JP2000124042A (ja) * 1998-10-20 2000-04-28 Hitachi Ltd 変圧器及びそれに用いられるタップ切換装置
DE10102310C1 (de) * 2001-01-18 2002-06-20 Reinhausen Maschf Scheubeck Thyristor-Stufenschalter
DE602007012203D1 (de) * 2007-02-02 2011-03-10 Abb Research Ltd Schaltvorrichtung, deren Verwendung und Verfahren zum Umschalten
US7910845B2 (en) * 2007-05-04 2011-03-22 Eaton Corporation Removable racking system for an electrical switching apparatus
DE102007023124B3 (de) * 2007-05-16 2008-10-02 Maschinenfabrik Reinhausen Gmbh Schaltanordnung
US8153916B2 (en) 2008-08-14 2012-04-10 Cooper Technologies Company Tap changer switch
CN103563030B (zh) * 2011-03-25 2016-04-20 Abb技术有限公司 具有改进开关结构的分接头变换器
RU115121U1 (ru) * 2011-09-29 2012-04-20 Открытое акционерное общество Саратовский электромеханический завод "Электродеталь" Электрический переключатель
JP5875466B2 (ja) * 2012-05-31 2016-03-02 株式会社日立製作所 スイッチギヤまたはスイッチギヤの組立方法

Also Published As

Publication number Publication date
RU2016134011A (ru) 2018-03-26
US20160351352A1 (en) 2016-12-01
KR20160128310A (ko) 2016-11-07
CN105981119A (zh) 2016-09-28
EP3108492B1 (fr) 2019-06-12
RU2673565C2 (ru) 2018-11-28
WO2015124508A1 (fr) 2015-08-27
US9972456B2 (en) 2018-05-15
DE102014102263B3 (de) 2015-04-23
RU2016134011A3 (fr) 2018-10-12
ZA201604599B (en) 2017-08-30
UA120845C2 (uk) 2020-02-25
JP6522637B2 (ja) 2019-05-29
CN105981119B (zh) 2018-09-18
JP2017511973A (ja) 2017-04-27

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