EP0640241A1 - Stufenschalter. - Google Patents
Stufenschalter.Info
- Publication number
- EP0640241A1 EP0640241A1 EP93909911A EP93909911A EP0640241A1 EP 0640241 A1 EP0640241 A1 EP 0640241A1 EP 93909911 A EP93909911 A EP 93909911A EP 93909911 A EP93909911 A EP 93909911A EP 0640241 A1 EP0640241 A1 EP 0640241A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tap changer
- transformer
- contact
- housing
- rail
- 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
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
- H01H9/0044—Casings; Mountings; Disposition in transformer housing
Definitions
- the invention relates to a tap changer of the add-on type, which can be connected to a tap transformer in single or multi-phase design, in which the taps of the tap winding of each phase are led to the outside.
- Such a tap changer can be used particularly advantageously on cast-resin-insulated transformers.
- Cast resin insulated transformers of the type described are known, for example, from the company publication "Technical Information Cast Resin Transformers" from Starkstrom-Gerätebau GmbH, Regensburg, 1985. Such dry-type transformers, particularly in the range up to approximately 600 A, are increasingly preferred over clophen- or oil-insulated transformers because of their simpler construction and not least for reasons of environmental protection.
- the connecting lines and thus also the taps of an existing tap winding are led to connecting tabs on the rejected winding bars or directly on threaded sleeves on the cast resin winding and can be connected there with connecting tapes to a tap changer.
- step switch in any case not only on the electrical characteristics of the transformer, its number of stages, etc., but also on the respective mechanical and structural conditions, such as size, shape, type and location of the electrical connections and the mechanical fasteners among others have to be adjusted.
- the object of the invention is therefore to provide r a cultivation step switch which is mechanically fastened in a simple manner at tapped transformers, preferably g foolharzisol convinced tapped transformers, various types and constructive formation of electrically connected, along with the latter.
- tapped transformers preferably g confuseharzisol convinced tapped transformers
- various types and constructive formation of electrically connected along with the latter.
- the technical implementation of the tap changer using identically constructed single-phase tap changer modules has the advantage of being largely standardized.
- the tap changer modules have uniform connection elements. and fasteners by means of which they can be connected directly to connection and contact means on the cast resin transformer.
- the housings of the tap changer modules each have at least one cutout through which, in the assembled state, the connection and contact means of the transformer extend into the interior of the respective tap changer module and can be directly connected by it by forming the actual tap changer contacts.
- these connection elements are preferably electrode-like at their free end and arranged in a circle or spatially to one another along a line.
- FIG. 1 shows the arrangement of a modular tap changer according to the invention with a tap transformer in cast resin design in a schematic representation
- Fig. La shows an alternative possible arrangement
- Fig. 2 shows the interacting connecting and fastening elements in a perspective view
- Fig. 3. shows a second embodiment of these elements also in perspective
- Fig. 4 shows a third embodiment of these elements again in perspective
- Fig. 5 shows a modular according to the invention
- a three-phase step transformer gate 1 which is designed as a cast resin transformer, has a connection terminal 2.1, 2.2, 2.3 for each phase.
- These connection terminals 2.1, 2.2, 2.3 each have the same geometric assignment of electrical connection elements 2.1.1, 2.2.1 and 2.3.1, which are each connected to the corresponding taps of the step winding of the respective phase. They also have mechanical fasteners 2.1.2, 2.2.2 and 2.3.2.
- Each connection e terminal is a single-phase, identically structured tap changer module 3.1, 3.2 and 3.3. electrically and mechanically connected. The connection is made through corresponding electrical connection elements 3.1.1, 3.2.1 and 3.3.1 arranged on the respective tap changer module and corresponding mechanical fastening means 3.1.2, 3.2.2 and 3.3.2.
- Fig. La shows schematically another example of the arrangement of the drive shafts.
- the step switch module 3.1 has geometrically corresponding electrical connection elements 3.1.1, designed as contact sockets or clamps, which enclose the connection elements 2.1.1, and corresponding fastening means 3.1.2, in this case bores in a flange, so that the step switch module 3.1 by means of Nuts can be screwed to the respective connection terminal 2.1.1.
- the corresponding constructive design of the respective pairings of electrical connection elements and mechanical connecting means can be varied depending on the respective electrical requirements and loads and the mechanical and in particular also spatial conditions. In any case, it is ensured that only a single tap changer module is required, regardless of the number of phases of the transformer. Each tap changer module corresponds to a complete single-phase tap changer, and in particular also has its own energy accumulator for rapid triggering.
- Such step switch modules are particularly advantageous as single-phase load selectors, which are particularly space-saving due to the combination of step selection and uninterrupted load switching are producible. Furthermore, it is of course particularly advantageous to also provide the tap changer modules in dry construction, since this eliminates the need for a separate, otherwise necessary, sealing of the oil space.
- the tap changer modules are power-free changeover switches, linear changeover switches, for example, which further simplifies the entire arrangement since, inter alia, the energy store is dispensed with, but on the other hand it is necessary to switch off the transformer before switching from one step to another.
- connection terminal It is also advantageous to design the electrical connection elements on the connection terminal so that they extend into the interior of the connected tap changer module and are used there directly as contacts between which the switchover takes place, i.e. be wired.
- connection terminal 2.1 When the connection terminal 2.1 is unchanged from FIG. 2, the electrical connection elements 2.1.1, which are also arranged one above the other, are designed like electrodes at their free ends.
- the tap changer module 3.1 fastened to the connection terminal 2.1 does have corresponding fastening means 3.1.2, but there are no separate electrical connection elements.
- FIG. 3a shows an alternative arrangement of the electrical connection elements; this circular arrangement is also suitable for directly forming the fixed step contacts, which can then be connected in a manner known per se by a centrally mounted, rotatable contact bridge.
- Fig. 4 shows a further embodiment.
- the tap changer module 3.1 has a cutout 3.4 which faces the connection terminal 2.1.
- the electrical rejections are formed only as cast-in threaded sleeves 6.1.1 ... 6.5.2, with two electrical sleeves ⁇ .nl and 6.n.2 corresponding to each other corresponding to each electrical connection. Molded parts 7.1 ... 7.5, which are screwed together with the threaded sleeves lying next to each other in pairs, form both the stepped contacts 7.1.1 ...
- a cast resin transformer has, on the front of each winding 8, mutually arranged contact sockets 9, each of which is connected to a lead-out of the step winding, as has already been explained above.
- two threaded bushings 9 of the same potential lie horizontally next to one another and are bolted by bolts 10 to the stepped contact 11, which is designed as a molded piece, directly or via a further conductive adapter 12.
- Each of the identically designed tap contacts 11 arranged one below the other on a vertical line has two parallel contact cheeks 11.1 and 11.2 which extend parallel to one another into the interior of the housing of the tap changer.
- the two contact cheeks 11.1 and 11.2 are screwed to two housing parts 13.1, 13.2 arranged symmetrically from above; these form with two cover plates 14.1, 14.2, for example made of insulating material, and two horizontal guide bolts 15 the housing of the step scarf.
- the rear side of the housing facing away from the fixed contacts remains open; it is of course also possible instead of parallel horizontal spacer 15 to provide a closed end plate or the like ..
- At least one, here two, curved rails 16.1 and 16.2, at least one, here two, guide rails 17.1 and 17.2 and at least one discharge rail 18 are arranged between the horizontal spacer bolts 15, running vertically and parallel to one another.
- a further contact rail 19 is arranged, which has a contact resistance R and. a switch 20 is connected to the diverter rail 18.
- FIG. 6 shows the circuit diagram of such a tap changer according to FIG. 5.
- the energy accumulator 22 which carries a second contact bridge 23
- the second contact bridge 23 connects the other contact cheek 11.1 of the fixed step contact 11 to the load lead 18 via a second switch 24 , expediently by means of a he further contact bridge 25.
- Vacuum switches are advantageously used as switches 20 and 24, and their switching actuation can also be controlled by the contour of the curved rails 16.1 and 16.2 which are present anyway.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Lock And Its Accessories (AREA)
- Electrophonic Musical Instruments (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Housings And Mounting Of Transformers (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Breakers (AREA)
- Control Of Stepping Motors (AREA)
- Protection Of Transformers (AREA)
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924216034 DE4216034C1 (de) | 1992-05-15 | 1992-05-15 | Stufenschalter für einen vorzugsweise gießharzisolierten Stufentransformator |
DE4216034 | 1992-05-15 | ||
DE4237242A DE4237242A1 (de) | 1992-05-15 | 1992-11-04 | Stufenschalter für einen vorzugsweise gießharzisolierten Stufentransformator |
DE4237242 | 1992-11-04 | ||
PCT/EP1993/001114 WO1993023861A1 (de) | 1992-05-15 | 1993-05-06 | Stufenschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0640241A1 true EP0640241A1 (de) | 1995-03-01 |
EP0640241B1 EP0640241B1 (de) | 1996-09-11 |
Family
ID=25914818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93909911A Expired - Lifetime EP0640241B1 (de) | 1992-05-15 | 1993-05-06 | Stufenschalter |
Country Status (13)
Country | Link |
---|---|
US (1) | US5516992A (de) |
EP (1) | EP0640241B1 (de) |
JP (1) | JPH07508131A (de) |
AT (1) | ATE142819T1 (de) |
AU (1) | AU4065193A (de) |
BG (1) | BG61588B1 (de) |
CA (1) | CA2135803C (de) |
DE (2) | DE4237242A1 (de) |
HU (1) | HU216929B (de) |
RO (1) | RO113503B1 (de) |
RU (1) | RU2115187C1 (de) |
UA (1) | UA34442C2 (de) |
WO (1) | WO1993023861A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19847745C1 (de) * | 1998-10-16 | 2000-01-05 | Reinhausen Maschf Scheubeck | Stufenschalter |
UA94521C2 (ru) * | 2010-02-08 | 2011-05-10 | Виктор Владимирович Гребеников | Привод устройства регулирования напряжения силового трансформатора под нагрузкой |
CN103026432A (zh) * | 2010-04-07 | 2013-04-03 | Abb技术有限公司 | 室外干式变压器 |
DE102012103489B4 (de) * | 2012-04-20 | 2015-11-12 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter und dessen Verwendung zur Spannungsregelung in einem Verteiltransformator |
DE102012103490B4 (de) * | 2012-04-20 | 2015-11-12 | Maschinenfabrik Reinhausen Gmbh | Verteiltransformator zur Spannungsregelung von Ortsnetzen |
DE202012101477U1 (de) * | 2012-04-20 | 2013-07-23 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
DE102012104089A1 (de) * | 2012-04-27 | 2013-10-31 | Maschinenfabrik Reinhausen Gmbh | Verfahren zur Ausmittelung eines Laststufenschalters |
US9181934B2 (en) * | 2012-11-21 | 2015-11-10 | The Boeing Company | Rotary switch assembly for ion propulsion system |
WO2014079472A1 (en) * | 2012-11-26 | 2014-05-30 | Cameron International Corporation | Multiple switching device |
WO2014144501A2 (en) * | 2013-03-15 | 2014-09-18 | Cooper Technologies Company | Switching module for voltage regulator |
EP2797088A1 (de) * | 2013-04-23 | 2014-10-29 | ABB Technology AG | Spule für einen Trockentransformator und Trockentransformator |
EP2980820B1 (de) * | 2014-08-01 | 2016-09-28 | ABB Schweiz AG | Laststufenschalter für Trockenwandler und Trockenwandler damit |
DE102014112763A1 (de) * | 2014-09-04 | 2016-03-10 | Maschinenfabrik Reinhausen Gmbh | Schaltanordnung für einen Regeltransformator, insbesondere Vorwähler |
US9679710B1 (en) | 2016-05-04 | 2017-06-13 | Cooper Technologies Company | Switching module controller for a voltage regulator |
DE102018208612A1 (de) * | 2018-05-30 | 2019-12-05 | Siemens Aktiengesellschaft | Transformator |
CN116682656B (zh) * | 2023-07-27 | 2023-10-17 | 成都双星变压器有限公司 | 一种电气化铁路用的牵引变压器及其使用方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE580086C (de) * | 1931-10-02 | 1933-07-05 | Bernhard Jansen Dr Ing | Stufenwaehler |
US2036305A (en) * | 1934-04-25 | 1936-04-07 | Westinghouse Electric & Mfg Co | Regulating equipment |
NL258282A (de) * | 1959-01-07 | |||
US3177307A (en) * | 1961-09-06 | 1965-04-06 | Allis Chalmers Mfg Co | Tap changer rotary switch with radially spaced movable contact members and motion limiting means |
US3192328A (en) * | 1963-02-01 | 1965-06-29 | Mc Graw Edison Co | Movable switch contact assembly with self-aligning bridging plate members |
JPS5118609B1 (de) * | 1968-03-13 | 1976-06-11 | ||
US3628128A (en) * | 1969-03-11 | 1971-12-14 | Bbc Brown Boveri & Cie | Step-switching arrangement |
AT293541B (de) * | 1970-08-17 | 1971-10-11 | Esslinger Spezielektra | Anordnung de Klemmstellen für Anzapfungen an einer blanken Wicklung, insbesondere einer Drosselspulen-Wicklung |
DE2712484A1 (de) * | 1977-03-22 | 1978-09-28 | Reinhausen Maschf Scheubeck | Anbaustufenschalter fuer stufentransformatoren |
FR2518306B1 (fr) * | 1981-12-11 | 1986-11-28 | Transfix Soc Nouv | Transformateur electrique et procede pour sa fabrication |
US4504811A (en) * | 1982-11-12 | 1985-03-12 | Westinghouse Electric Corp. | Cable operated tap changer for a three-phase transformer |
US4562316A (en) * | 1984-06-07 | 1985-12-31 | Asea Electric, Inc. | High voltage linear tap changer |
JPS6210973A (ja) * | 1985-07-08 | 1987-01-19 | Nec Corp | シヤツタ機能を備えた電荷転送素子固体撮像素子 |
US4644112A (en) * | 1986-01-03 | 1987-02-17 | Asea Electric, Inc. | Linear transformer switch |
DE3630415A1 (de) * | 1986-09-06 | 1988-03-17 | Reinhausen Maschf Scheubeck | Als stufentransformator ausgebildeter giessharzisolierter transformator |
-
1992
- 1992-11-04 DE DE4237242A patent/DE4237242A1/de not_active Withdrawn
-
1993
- 1993-05-06 WO PCT/EP1993/001114 patent/WO1993023861A1/de active IP Right Grant
- 1993-05-06 US US08/313,206 patent/US5516992A/en not_active Expired - Fee Related
- 1993-05-06 AT AT93909911T patent/ATE142819T1/de not_active IP Right Cessation
- 1993-05-06 JP JP5519838A patent/JPH07508131A/ja active Pending
- 1993-05-06 RO RO94-01128A patent/RO113503B1/ro unknown
- 1993-05-06 DE DE59303768T patent/DE59303768D1/de not_active Expired - Fee Related
- 1993-05-06 CA CA002135803A patent/CA2135803C/en not_active Expired - Fee Related
- 1993-05-06 EP EP93909911A patent/EP0640241B1/de not_active Expired - Lifetime
- 1993-05-06 AU AU40651/93A patent/AU4065193A/en not_active Abandoned
- 1993-05-06 UA UA94005452A patent/UA34442C2/uk unknown
- 1993-05-06 HU HU9401368A patent/HU216929B/hu not_active IP Right Cessation
- 1993-05-06 RU RU94046072A patent/RU2115187C1/ru active
-
1994
- 1994-10-18 BG BG99118A patent/BG61588B1/bg unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9323861A1 * |
Also Published As
Publication number | Publication date |
---|---|
HUT68134A (en) | 1995-05-29 |
EP0640241B1 (de) | 1996-09-11 |
DE4237242A1 (de) | 1994-05-05 |
UA34442C2 (uk) | 2001-03-15 |
HU216929B (hu) | 1999-10-28 |
CA2135803C (en) | 2003-09-30 |
RU94046072A (ru) | 1996-12-27 |
WO1993023861A1 (de) | 1993-11-25 |
HU9401368D0 (en) | 1994-09-28 |
RU2115187C1 (ru) | 1998-07-10 |
JPH07508131A (ja) | 1995-09-07 |
BG99118A (bg) | 1995-07-28 |
US5516992A (en) | 1996-05-14 |
ATE142819T1 (de) | 1996-09-15 |
CA2135803A1 (en) | 1993-11-25 |
AU4065193A (en) | 1993-12-13 |
BG61588B1 (en) | 1997-12-30 |
RO113503B1 (ro) | 1998-07-30 |
DE59303768D1 (de) | 1996-10-17 |
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