EP2686857A1 - Laststufenschalter - Google Patents
LaststufenschalterInfo
- Publication number
- EP2686857A1 EP2686857A1 EP12705134.0A EP12705134A EP2686857A1 EP 2686857 A1 EP2686857 A1 EP 2686857A1 EP 12705134 A EP12705134 A EP 12705134A EP 2686857 A1 EP2686857 A1 EP 2686857A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resistance
- carrier
- resistor
- load tap
- load
- 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
- 239000011810 insulating material Substances 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000009795 derivation Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 abstract description 5
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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
- H01H9/0005—Tap change devices
- H01H9/0044—Casings; Mountings; Disposition in transformer housing
-
- 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
Definitions
- the invention relates to an on-load tap changer for uninterrupted switching between taps of a control winding of a tapped transformer.
- On-load tap changer has an insulating cylinder as the housing, solid fixed contacts, which are electrically connected to the taps of the control winding to be connected, are arranged in a circular manner in the wall of the insulating cylinder in a plurality of horizontal planes.
- a rotatable switching shaft is arranged, which has mechanical contacts for each horizontal plane of fixed stage contacts on a contact carrier, which are contacted with the fixed stage contacts.
- At least one of the movable contacts on the contact carrier is connected directly to a load dissipation; on the other hand, at least one further contact on the contact carrier is connected to the load discharge via an intermediate transfer resistor.
- the over-resistance is used in a known manner, during the load switching, d.
- DE 38 33 126 A1 shows a similar on-load tap changer type load switch, in which a switching resistor is designed as a wire helix, which is guided on a spacer around the central switch column around. Again, the switching resistance with the
- WO 2008/024067 A1 describes a special switching resistor for a
- This switching resistor is designed as a package consisting of individual modules.
- resistance wires are arranged in a planar frame parallel to each other, wherein there are gaps between the coiled resistance wires.
- multi-superimposed frame can be modularly configure the mentioned package of total over-resistance.
- These transfer resistors, more precisely the package, are attached to a frame which carries the actual diverter switch.
- overshoot resistors are therefore suitable for an on-load tap-changer with separate, movable selector and separate, fixed diverter switch to the actual
- the object of the invention is to provide an on-load tap-changer of the type mentioned, which has one or more switching resistors, which are modular, depending on the specific resistance values required, have a small footprint and directly to a rotatable switch column, the rotational movement upon actuation of the On-load tap-changer with executive, can be fixed in a simple and cost-effective manner.
- the invention is achieved by an on-load tap changer having the features of the first claim.
- the subclaims relate to particularly advantageous developments of the invention.
- the general inventive idea is to fix known wire helix by modular resistance holders and to attach these pre-assembled units on a resistance carrier, which in turn is attached to the switch column.
- the resistance carrier according to the invention has a contour which corresponds to the geometric shape of the rotatable switch column.
- a cylindrical switch column with a circular cross-section and thus corresponding to a shape of the resistor carrier as shells or cylinder segment, wherein the inner diameter of this cylinder segment substantially to the outer diameter of the
- Switch column corresponds. However, in the context of the invention, corresponding other geometric cross sections of switch column and resistance carrier are also possible.
- the advantage of the invention lies in particular in the simple, space-saving design with only a few components directly to the switch column. Furthermore, a pre-assembly of the entire
- FIG. 1 shows a wire coil for a switching resistance of a device according to the invention
- Figure 2 shows a modular resistor holder according to the invention
- Figure 3 is a resistance carrier according to the invention alone
- Figure 4 shows a resistance carrier according to the invention in the completed state
- Figure 5 shows such a resistance carrier, mounted on the switch column of a
- FIG. 1 shows individual wire helixes 1 made of resistance wire which, in each case connected to one another electrically by connecting parts 2, form a complete wire helix arrangement 3.
- Free contact ends 4 and 5 serve to electrically connect this wire helix arrangement; this will be discussed later.
- Different wire lengths and diameters can be selected to adapt to a wide variety of resistance values;
- the wire coil 3 is clamped and fixed by means of a respective two-part resistor holder 6 of insulating material to preferably two areas.
- FIG. 2 shows such a modular resistance holder 6 in two different perspective views.
- Each resistance holder 6 has chambers 6 a, each receiving a wire coil 1.
- Detent hole 8 are fixed clip-like, so that they enclose the respective wire coil 1. Between the described chambers 6a for receiving are formed webs 6b, which fix the position of the respective individual wire helix 1 and thus the entire wire turntable 3. For reasons of clarity, not all of these areas are provided with reference numerals. Depending on the required length of the resistance wire and thus the required number of wire coil 1 and individual chambers 6a may remain empty. On the function of the also shown
- Positionierstife 9 on the closed side of the resistor holder 6 will be discussed later.
- FIG. 3 shows a resistance carrier 10, to which the preassembled wire helix 3, fixed by the described mirror-symmetrically clamped resistance holders 6, can be fastened.
- the resistance member 10 is made of insulating material and has a cylinder-segment-like contour whose curvature is adapted to the diameter of the - not shown - switch column.
- the resistance member 10 is provided for the attachment of two separate pre-mounted contact resistors; however, the invention is not limited thereto. Ultimately, it depends on the particular circuit of the concrete on-load tap-changer, how many separate switching resistors per phase to be switched are required.
- the resistance carrier 10 has positioning bores 11, which correspond to the already explained positioning pins 9 of the resistance holders 6 to be mounted. Furthermore, openings 12 are provided which serve for fastening these resistance holders 6. Further connection angle 13 are provided, which will be explained later in more detail.
- Figure 4 shows a fully populated resistor carrier 10.
- two mounted complete transfer resistors Hin1 and Hin2 each consisting of a wire coil 3, fixed on both sides by a total of four resistor holder 6, wherein two of them are joined together.
- the actual attachment of the complete transfer resistors Stud1 and Stud2 carried by cable ties, which are guided and fixed by the openings 12 of the resistor carrier 10.
- other mounting options such as by means of a
- brackets still upper mounting grooves 17 and lower mounting grooves 18 are each provided on both sides of the cup-like resistor carrier 10.
- Resistance holder 6 consist of identical items, the here useless positioning pins can be seen on the outwardly directed resistance holders 6.
- FIG. 5 shows a completed switch column 19 of an on-load tap-changer according to the invention. Only indicated is a contact carrier 20 which is fixed to the switch column 19 and carries in known manner the movable contacts, by means of which upon rotation of the switch column 19, the fixed - not shown - contacts in the - also not shown - wall of the insulating cylinder of the On-load tap changer are connected in a known manner.
- Plastic pin positively and secured against rotation It is also possible within the scope of the invention to fasten the resistance carrier 10 directly to the switch column 19.
- the attachment itself can also be done in other ways.
- the on-load tap-changer has a particularly simple, inexpensive and reliable arrangement of the switching resistors.
- the wire helix 3 can be varied within wide limits in order to achieve a wide variety of resistance values.
- the resistance holders 6 consist only of a single identical part, two of which, rotated by 180 degrees, can be clipped together; Mounting errors are virtually eliminated. Of the
- Resistance carrier 10 is also simple. It can pick up multiple transient resistors - but it does not have to be. If only a single transition resistance is provided, the other area of the resistance carrier simply remains free.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details Of Resistors (AREA)
- Housings And Mounting Of Transformers (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Regulation Of General Use Transformers (AREA)
- Adjustable Resistors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011014325.4A DE102011014325B4 (de) | 2011-03-18 | 2011-03-18 | Laststufenschalter |
PCT/EP2012/052866 WO2012126685A1 (de) | 2011-03-18 | 2012-02-20 | Laststufenschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2686857A1 true EP2686857A1 (de) | 2014-01-22 |
EP2686857B1 EP2686857B1 (de) | 2014-09-03 |
Family
ID=45722649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12705134.0A Active EP2686857B1 (de) | 2011-03-18 | 2012-02-20 | Laststufenschalter |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP2686857B1 (de) |
CN (1) | CN103415904B (de) |
BR (1) | BR112013018969B1 (de) |
DE (1) | DE102011014325B4 (de) |
ES (1) | ES2525130T3 (de) |
HK (1) | HK1189420A1 (de) |
UA (1) | UA112177C2 (de) |
WO (1) | WO2012126685A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013107552B4 (de) * | 2013-07-16 | 2017-03-16 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
CN107546010B (zh) * | 2017-08-16 | 2019-06-04 | 芜湖市凯鑫避雷器有限责任公司 | 一种变压器调压绕组结构 |
CN109637858B (zh) * | 2018-12-12 | 2020-04-24 | 国网北京市电力公司 | 变压器开关组、变压器、变压器调容方法及装置 |
EP3761334B1 (de) * | 2019-07-01 | 2024-01-24 | Hitachi Energy Ltd | Stufenschalter in einem leistungstransformator |
DE102019126168A1 (de) * | 2019-09-27 | 2021-04-01 | Maschinenfabrik Reinhausen Gmbh | Widerstandsanordnung für stufenschalter und stufenschalter |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3546653A (en) * | 1969-06-02 | 1970-12-08 | Mc Graw Edison Co | Resistor assembly |
DE2434364C2 (de) * | 1974-07-17 | 1976-09-02 | Reinhausen Maschf Scheubeck | Lastumschalter mit ueberschaltwiderstaenden fuer stufenschalter von stufentransformatoren |
BE831951A (fr) * | 1975-07-31 | 1976-02-02 | Acec | Support de resistances pour commutateur sous charge d'une installationde reglage en charge de la tension des transformateurs |
IN169357B (de) * | 1986-07-05 | 1991-09-28 | Reinhausen Maschf Scheubeck | |
DE3833126C2 (de) * | 1988-09-29 | 1995-11-30 | Reinhausen Maschf Scheubeck | Lastwähler für Stufentransformatoren |
DE4231353C2 (de) * | 1991-09-19 | 1997-07-24 | Toshiba Kawasaki Kk | Stufenschalter |
DE9405427U1 (de) * | 1994-03-30 | 1995-04-27 | Reinhausen Maschf Scheubeck | Lastwähler mit Überschaltwiderständen |
DE19821775C1 (de) * | 1998-05-14 | 1999-10-14 | Reinhausen Maschf Scheubeck | Lastwähler |
WO2008024067A1 (en) * | 2006-08-25 | 2008-02-28 | Abb Technology Ltd. | A resistor for electric high-voltage apparatus and a method of mounting a resistor |
CN101807472B (zh) * | 2009-02-13 | 2012-08-08 | 上海华明电力设备制造有限公司 | 一种替换有载分接开关铜钨触头组的真空泡组 |
-
2011
- 2011-03-18 DE DE102011014325.4A patent/DE102011014325B4/de not_active Expired - Fee Related
-
2012
- 2012-02-20 EP EP12705134.0A patent/EP2686857B1/de active Active
- 2012-02-20 CN CN201280012203.1A patent/CN103415904B/zh active Active
- 2012-02-20 UA UAA201311093A patent/UA112177C2/uk unknown
- 2012-02-20 BR BR112013018969-0A patent/BR112013018969B1/pt not_active IP Right Cessation
- 2012-02-20 WO PCT/EP2012/052866 patent/WO2012126685A1/de active Application Filing
- 2012-02-20 ES ES12705134.0T patent/ES2525130T3/es active Active
-
2014
- 2014-03-07 HK HK14102305.0A patent/HK1189420A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2012126685A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2525130T3 (es) | 2014-12-17 |
HK1189420A1 (en) | 2014-06-06 |
BR112013018969B1 (pt) | 2020-10-13 |
CN103415904B (zh) | 2016-09-07 |
EP2686857B1 (de) | 2014-09-03 |
WO2012126685A1 (de) | 2012-09-27 |
CN103415904A (zh) | 2013-11-27 |
BR112013018969A2 (pt) | 2016-10-04 |
DE102011014325A1 (de) | 2012-09-20 |
UA112177C2 (uk) | 2016-08-10 |
DE102011014325B4 (de) | 2014-11-27 |
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Inventor name: REHKOPF, SEBASTIAN Inventor name: BOEGER, CHRISTIAN Inventor name: JATTA, MARTIN Inventor name: HOTTNER, TONI Inventor name: LEDERER, PHILIPP Inventor name: SCHLEPP, KLAUS Inventor name: STREMPEL, ROLF |
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