EP4046177A1 - Combinateur à prises et transformateur à changement de prises doté d'un combinateur à prises - Google Patents

Combinateur à prises et transformateur à changement de prises doté d'un combinateur à prises

Info

Publication number
EP4046177A1
EP4046177A1 EP20785740.0A EP20785740A EP4046177A1 EP 4046177 A1 EP4046177 A1 EP 4046177A1 EP 20785740 A EP20785740 A EP 20785740A EP 4046177 A1 EP4046177 A1 EP 4046177A1
Authority
EP
European Patent Office
Prior art keywords
changer
load tap
tap
plate
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.)
Pending
Application number
EP20785740.0A
Other languages
German (de)
English (en)
Inventor
Robert Hiltner
Christian Münzberg
Stefan Feldmeier
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 EP4046177A1 publication Critical patent/EP4046177A1/fr
Pending 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
    • H01H9/0044—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
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms
    • 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
    • H01H9/0038—Tap change devices making use of vacuum switches

Definitions

  • the invention relates to an on-load tap changer for uninterrupted load switching between different winding taps of a tap transformer.
  • the invention also relates to a step transformer with an on-load tap changer for uninterrupted load switching between different winding taps of the step transformer.
  • On-load tap-changers are known from the prior art and mostly have a diverter switch and a selector.
  • the diverter switch with the vacuum interrupters and the transition resistors is arranged in a cylindrical vessel.
  • the voter is made up of a large number of bars arranged in a circle. Contacts, which serve as connections for a regulating winding, are arranged on these bars in different levels. Inside the voter, two voter arms are attached to a switching column. These make contact with the contacts on the bars. Diverter switch and selector are connected to one another via a gearbox.
  • the contacts of the selector are connected to the winding taps of a control winding. Because the contacts are arranged in a circle, the lines to the control winding must be made very long in some cases.
  • the cables in the step transformer need a lot of space, as the prescribed isolation distances between the cables must be observed.
  • the object of the invention is to create an on-load tap-changer which is simple and compact and can therefore be installed in a tap-changer in a simple and space-saving manner.
  • Another object of the invention is to create a step transformer with an on-load tap changer that is simple and compact.
  • the invention proposes an on-load tap-changer for uninterrupted load switching between different winding taps of a tap-changer, comprising an on-load tap-changer plate, a selector and a diverter switch, the selector and diverter switch being mounted on the on-load tap-changer plate.
  • an on-load tap-changer plate By mounting the diverter switch and the selector and in particular the respective individual parts on an on-load tap-changer plate, the on-load tap-changer becomes smaller and more compact overall.
  • an on-load tap-changer plate can be fitted in a tapped transformer in a particularly space-saving manner and connected to other on-load tap-changer plates in different ways.
  • the diverter switch comprises a vacuum interrupter, a transition resistor and a bridge switch.
  • the diverter switch can be designed in any manner as required and, for example, comprise at least one additional or further vacuum interrupter and / or one additional or further transition resistor and / or one additional or further bridge switch.
  • the diverter switch can be designed in any manner as required and, for example, comprise at least one current-limiting element or a connection for a current-limiting element.
  • the current-limiting element can be designed as a transition resistor, reactance, varistor or the like.
  • the vacuum interrupter is mounted on a first side of the on-load tap-changer plate and the transition resistor and the bridge switch are mounted on a second, opposite side of the on-load tap-changer plate. This is particularly space-saving, as the essential parts are distributed on both sides of the on-load tap-changer plate. The installation space is optimally used.
  • the on-load tap-changer can be designed in any manner as required and, for example, have the vacuum interrupter and / or the transition resistor and / or the bridge switch arranged only on the first side or only on the second side.
  • the voter comprises a first voter arm, a second voter arm and voter contacts.
  • the selector contacts extend from a first side of the on-load tap-changer plate to a second side of the on-load tap-changer plate.
  • the voter includes a preselector.
  • first selector arm is mounted on the first side of the on-load tap-changer plate and the second selector arm and the preselector on the on the second, opposite side of the on-load tap-changer plate.
  • the selector can be designed in any desired manner as required and, for example, can be constructed in a rotary or linear manner.
  • the selector arms can be arranged on a first side of the on-load tap-changer plate and the preselector on the second side of the on-load tap-changer plate.
  • the preselector can also be designed to be rotary or linear.
  • the on-load tap-changer plate is cuboid and connections for the selector are arranged on one side in a wall element.
  • the targeted arrangement of the selector connections on one side makes it easier to connect them to the winding taps of a control winding of a step transformer.
  • the on-load tap-changer has three on-load tap-changer plates, each with a diverter switch and each with a selector.
  • the three on-load tap-changer plates are then mechanically connected to one another via a frame.
  • the diverter switches and selectors on the on-load tap-changer plates are operated via a common drive shaft by means of a Geneva wheel, driver, gear wheel or the like.
  • the frame can be designed in any way as required and consist, for example, of four rods and a top plate.
  • the on-load tap-changer plates are then positively and / or non-positively connected to the rods.
  • the on-load tap-changer plates can be arranged in relation to one another as required.
  • the on-load tap-changer plates can be arranged horizontally or vertically in different levels.
  • the on-load tap-changer plates can be arranged horizontally or vertically in a common plane.
  • the invention proposes a step transformer with an on-load tap changer which is arranged in the interior of the step transformer next to and / or above and / or below an active part.
  • the on-load tap-changer plate of the on-load tap-changer is aligned horizontally or vertically with respect to the active part.
  • a motor for actuating a drive shaft of the on-load tap changer is arranged inside the tap transformer or outside the tap transformer. It can be provided that a motor is connected directly to the drive shaft or indirectly to the drive shaft of the on-load tap-changer via a gear, angular gear or linkage.
  • the on-load tap-changer is fastened via a head plate on the yoke of the active part or on the housing, in particular the cover or a wall of the tap-changer.
  • FIG. 1a and 1b show a first embodiment of an on-load tap-changer
  • 3 to 14 show a step transformer with different embodiments and arrangements of the on-load tap changer.
  • FIGS. 1a and 1b show an on-load tap-changer 1 according to the invention.
  • This has an essentially rectangular on-load tap-changer plate 2, which is designed as a cuboid, rectangular or rectangular.
  • the on-load tap-changer plate 2 has a first side 3 and a second, opposite side 4.
  • a selector 5 and a diverter switch 6 are mounted on the on-load tap-changer plate 2.
  • the diverter switch 6 has a vacuum interrupter 7, a transition resistor 8 and a bridge switch 9.
  • the voter 5 has a first voter arm 5.1 and a second voter arm 5.2.
  • the selector 5 has selector contacts which are connected via corresponding connections 10 to winding taps, not shown here, of a regulating winding.
  • the selector 5 is designed to be rotatory in the embodiment shown here.
  • the selector contacts are arranged in a circle and extend from the first side 3 through the on-load tap-changer plate 2 to the second side 4.
  • the selector arms 5.1, 5.2 are rotatably mounted on a bearing axis and perform a rotary movement in which the corresponding selector contacts are contacted.
  • the first voter arm 5.1 is on the arranged on the first side 3 of the on-load tap-changer plate 2 and the second selector arm 5.2 is arranged on the second, opposite side 4.
  • the selector contacts are also arranged on both sides 3, 4 of the on-load tap-changer plate 2.
  • the individual parts of the diverter switch 6 are also arranged on the first side 3 and on the second side 4 of the on-load tap-changer plate 2 in this embodiment.
  • the bridge switch 9 is mounted on the second side 4.
  • the vacuum interrupter 7 and the transition resistor 8 are mounted on the first side 3.
  • the on-load tap-changer 1 has exactly one vacuum interrupter 7 and exactly one bridge switch 9.
  • several vacuum interrupters, several bridge switches and also further switches or switching contacts can be mounted on the on-load tap-changer plate 2.
  • the transition resistor 8 has a modular design and can be expanded, i.e. enlarged or reduced, depending on the requirements.
  • the on-load tap-changer plate 2 consists of an insulating material such as plastic, polyamide, polyphthalamide with glass fibers, GRP or hard paper.
  • the on-load tap-changer plate 2 can be designed as a plastic injection molding.
  • the on-load tap-changer plate 2 has wall elements 11, 12 on the outer edges.
  • the connections 10 of the selector 5 and in particular the selector contacts are arranged in a first wall element 11 of the on-load tap-changer plate 2.
  • the connection for the star point is arranged in an opposite, second wall element 12 of a second outer edge of the on-load tap-changer plate 2. Because all connections 10 of the selector 5 are arranged in a wall element 11, that is to say on one side of the on-load tap-changer plate 2, the on-load tap-changer 2 can be aligned or placed particularly optimally in the direction of the control winding.
  • the connection of the selector 5 to the control winding is particularly simple.
  • any current-limiting element can also be arranged or mounted on the on-load tap-changer plate 2.
  • This can be a reactance in the form of a coil or winding or a varistor.
  • connections can be provided on the on-load tap-changer plate, which make it possible, for example, to connect a reactance which is arranged in the immediate vicinity of the on-load tap-changer plate.
  • FIG. 2 shows the on-load tap-changer 1 according to the invention with three on-load tap-changer plates 2. These are mechanically connected to one another via four rods 20 and a top plate 21. The rods 20 and the top plate 21 form a frame 22.
  • a motor 23 for actuating the on-load tap-changer 1 is arranged on the top plate 21.
  • the motor 23 drives a drive shaft 24 which extends through the three on-load tap-changer plates 2 and actuates the respective diverter switch 6 and selector 5.
  • the three on-load tap-changer plates 2 are arranged horizontally one above the other in three planes. However, it is also possible to arrange the three on-load tap-changer plates 2 next to one another in one plane. Furthermore, it is possible that only a single on-load tap-changer plate 2 and a top plate 21 are combined.
  • a motor 23, which actuates the on-load tap-changer 1 via the drive shaft 24, is then likewise arranged on the top plate 21.
  • the connections 10 of the individual selector 5 are arranged on one side of the on-load tap-changer plate or aligned in a common direction.
  • FIG. 3 shows a first embodiment of a step transformer 30 with an on-load tap-changer 1 according to the invention.
  • the on-load tap-changer 1 comprises three on-load tap-changer plates 2, which are horizontally aligned and arranged one above the other next to an active part 31.
  • the motor 23 is arranged on the top plate 21 in the interior of the step transformer 30.
  • the power supply of the motor 23 via the control unit 14 takes place via a cable 32 which is led from the inside of the step transformer 30 to the outside.
  • the on-load tap-changer 1 is attached to the yoke 33 of the active part 31 or to the cover 34 of the tap-changer 30.
  • the connections 10 of the selector are preferably directed towards the active part 31 and thus towards the taps of the control winding.
  • FIG. 4 shows a further embodiment of a step transformer 30, in which the motor 23 of the on-load tap changer 1 is arranged outside the step transformer 30; here on the cover 34.
  • the motor 23 can also be attached to any other outer wall of the step transformer 30. Then, however, the motor is connected to the on-load tap-changer 2 and in particular its drive shaft 24 via a linkage or angular gear.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the cover 34 via the head plate 21.
  • FIG. 5 shows a further embodiment of a step transformer 30 with an on-load tap changer 1.
  • the on-load tap-changer 1 is arranged above the active part 31.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged vertically next to one another.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the cover 34 via the head plate 21.
  • the engine 23 of the On-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • FIG. 6 shows a further embodiment of a step transformer 30 with an on-load tap changer 1.
  • the on-load tap-changer 1 is arranged below the active part 31.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged vertically next to one another.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the bottom part via the top plate 21.
  • the motor 23 of the on-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • FIG. 7 shows a further embodiment of a step transformer 30 with an on-load tap changer 1.
  • the on-load tap-changer 1 is arranged above the active part 31.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged horizontally next to one another in one plane.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30. This arrangement of the on-load tap-changer plates 2 in one plane is particularly space-saving.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the cover 34 via the head plate 21.
  • the motor 23 of the on-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • FIG. 8 shows another embodiment of a step transformer 30 with an on-load tap-changer 2.
  • the on-load tap-changer 2 is arranged below the active part 31.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged horizontally next to one another in one plane.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the bottom part via the top plate 21.
  • the motor 23 of the on-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • FIG. 9 shows a further embodiment of a step transformer 30 with an on-load tap-changer 1.
  • the on-load tap-changer 1 is arranged next to the active part 31.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged horizontally one below the other in one plane.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30.
  • This arrangement variant is also particularly space-saving.
  • the on-load tap-changer 1 can therefore be attached particularly close to the active part 31.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the cover 34 via the head plate 21.
  • the motor 23 of the on-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • Figure 10 shows a further embodiment of a step transformer 30 with a On-load tap-changer 1.
  • the on-load tap-changer 1 is arranged below the active part 31.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged horizontally next to one another in one plane.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the bottom part via the top plate 21.
  • the motor 23 of the on-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • FIG. 11 shows a further embodiment of a step transformer 30 with an on-load tap changer 1.
  • the on-load tap-changer 1 is arranged above the active part 31.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged horizontally next to one another in one plane.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the cover 34 via the head plate 21.
  • the motor 23 of the on-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • FIG. 12 shows a further embodiment of a step transformer 30 with an on-load tap changer 1.
  • the on-load tap-changer 1 is arranged in front of, behind or next to the active part 31.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged horizontally next to one another in one plane.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30.
  • This arrangement variant is also particularly space-saving.
  • the on-load tap-changer 1 can therefore be attached particularly close to the active part 31.
  • the on-load tap-changer 1 can be fastened via the head plate 21 to the yoke 33 of the active part 31, the cover 34 or a wall.
  • the motor 23 of the on-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • FIG. 13 shows a further embodiment of a step transformer 30 with an on-load tap-changer 1.
  • the on-load tap-changer 1 is arranged next to the active part 31 in the upper area.
  • the on-load tap-changer 1 has three on-load tap-changer plates 2 which are arranged horizontally one behind the other.
  • the motor 23 is arranged on the head plate 21 in the interior of the step transformer 30.
  • This arrangement variant is also particularly space-saving.
  • the on-load tap-changer 1 can therefore be attached particularly close to the active part 31.
  • the housing of the step transformer 30 can be designed to be particularly space-saving.
  • the volume below the on-load tap-changer 1 can be dispensed with.
  • the on-load tap-changer 1 can be attached to the yoke 33 of the active part 31 or to the cover 34 via the head plate 21.
  • the motor 23 of the on-load tap-changer 1 can also be arranged outside the tap-changer 30.
  • FIG. 14 shows a further embodiment of a step transformer 30 with three on-load tap-changers 1.
  • Each on-load tap-changer 1 has a top plate 21 and an on-load tap-changer plate 2.
  • a motor 23 is arranged on each head plate 21. All motors 23 are connected to a control unit 14 outside the step transformer 30.
  • the individual on-load tap-changers 1 can be arranged in different ways in the vicinity of the active part. This embodiment is also particularly space-saving.
  • the housing of the step transformer 30 can be designed to be particularly space-saving.
  • the on-load tap changer 1 can also be arranged outside the step transformer 30. This is then screwed or attached to the step transformer in its own housing.
  • the motor 23 can be arranged outside on the housing of the on-load tap-changer 1 or in the housing of the on-load tap-changer 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Control Of Electrical Variables (AREA)
  • Protection Of Transformers (AREA)

Abstract

Un combinateur à prises (1) permettant de changer entre différentes prises d'enroulement d'un transformateur à changement de prises (30) sans interruption, comprenant : - une plaque de combinateur à prises (2), - un sélecteur (5), - un commutateur de charge (6), dans lequel : - le sélecteur (5) et le commutateur de charge (6) sont montés sur la plaque de combinateur à prises (2).
EP20785740.0A 2019-11-19 2020-10-01 Combinateur à prises et transformateur à changement de prises doté d'un combinateur à prises Pending EP4046177A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019131169.1A DE102019131169B3 (de) 2019-11-19 2019-11-19 Laststufenschalter und Stufentransformator mit Laststufenschalter
PCT/EP2020/077539 WO2021099022A1 (fr) 2019-11-19 2020-10-01 Combinateur à prises et transformateur à changement de prises doté d'un combinateur à prises

Publications (1)

Publication Number Publication Date
EP4046177A1 true EP4046177A1 (fr) 2022-08-24

Family

ID=72717880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20785740.0A Pending EP4046177A1 (fr) 2019-11-19 2020-10-01 Combinateur à prises et transformateur à changement de prises doté d'un combinateur à prises

Country Status (9)

Country Link
US (1) US20220392717A1 (fr)
EP (1) EP4046177A1 (fr)
JP (1) JP2023501215A (fr)
KR (1) KR20220098748A (fr)
CN (1) CN114667581A (fr)
BR (1) BR112022007590A2 (fr)
DE (1) DE102019131169B3 (fr)
MX (1) MX2022006034A (fr)
WO (1) WO2021099022A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020122453A1 (de) 2020-08-27 2022-03-03 Maschinenfabrik Reinhausen Gmbh Laststufenschaltermodul
DE102020131285A1 (de) 2020-11-26 2022-06-02 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
CN113838702B (zh) * 2021-09-18 2024-01-16 中国南方电网有限责任公司超高压输电公司检修试验中心 有载分接开关的切换芯子和有载分接开关

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743864C1 (de) * 1997-10-04 1999-04-15 Reinhausen Maschf Scheubeck Stufenschalter
DE102011013749B4 (de) * 2011-03-12 2015-03-19 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102012103490B4 (de) * 2012-04-20 2015-11-12 Maschinenfabrik Reinhausen Gmbh Verteiltransformator zur Spannungsregelung von Ortsnetzen
DE102012105152B4 (de) * 2012-06-14 2015-11-12 Maschinenfabrik Reinhausen Gmbh Laststufenschalter zur unterbrechungslosen Umschaltung zwischen verschiedenen Wicklungsanzapfungen eines Stufentransformators
DE102014100949B4 (de) * 2014-01-28 2016-12-29 Maschinenfabrik Reinhausen Gmbh Laststufenschalter nach dem Reaktorschaltprinzip
DE102016104500B3 (de) * 2016-03-11 2017-05-04 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE102016117526B3 (de) * 2016-09-16 2018-02-15 Maschinenfabrik Reinhausen Gmbh Lasststufenschalter, Regeltransformator mit Laststufenschalter und Verfahren zum Schalten eines Laststufenschalters
CN206947194U (zh) * 2017-03-31 2018-01-30 宁波安德奥电力设备有限公司 直线式永磁真空有载分接开关

Also Published As

Publication number Publication date
KR20220098748A (ko) 2022-07-12
WO2021099022A1 (fr) 2021-05-27
DE102019131169B3 (de) 2021-02-18
US20220392717A1 (en) 2022-12-08
JP2023501215A (ja) 2023-01-18
MX2022006034A (es) 2022-06-22
CN114667581A (zh) 2022-06-24
BR112022007590A2 (pt) 2022-07-05

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