EP3427283A1 - Sélecteur pour un commutateur d'étage de charge et commutateur d'étage de charge avec commutateur de charge et sélecteur - Google Patents

Sélecteur pour un commutateur d'étage de charge et commutateur d'étage de charge avec commutateur de charge et sélecteur

Info

Publication number
EP3427283A1
EP3427283A1 EP17710696.0A EP17710696A EP3427283A1 EP 3427283 A1 EP3427283 A1 EP 3427283A1 EP 17710696 A EP17710696 A EP 17710696A EP 3427283 A1 EP3427283 A1 EP 3427283A1
Authority
EP
European Patent Office
Prior art keywords
contact
insulating plate
moving contact
selector
driver
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
EP17710696.0A
Other languages
German (de)
English (en)
Other versions
EP3427283B1 (fr
Inventor
Christian Hammer
Alfred Bieringer
Nikolaus Unterreiner
Hubert Zwirglmaier
Andreas Stocker
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
Priority to PL17710696T priority Critical patent/PL3427283T3/pl
Publication of EP3427283A1 publication Critical patent/EP3427283A1/fr
Application granted granted Critical
Publication of EP3427283B1 publication Critical patent/EP3427283B1/fr
Priority to HRP20201132TT priority patent/HRP20201132T1/hr
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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/44—Driving mechanisms, i.e. for transmitting driving force to the contacts using Geneva movement
    • 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

Definitions

  • the invention relates to a selector for an on-load tap-changer and an on-load tap changer having a diverter switch and a selector.
  • No. 6,693,247 B1 describes an on-load tap-changer which functions according to the reactor switching principle.
  • the on-load tap changer has a base plate and a cover plate, between which a motor, a transmission and the contact device are arranged.
  • the fixed contacts are arranged in a circle on the base plate and are connected by different contact units, which are operated via the transmission.
  • the contacting of the fixed contacts with the winding tappings takes place on the back of the base plate.
  • the gearbox is essentially attached to the cover plate, which is made of steel.
  • a formulation of the type "A is attached to B” corresponds to a formulation of the type "A is connected to B"
  • a formulation of the type "A is connected to B” means "A is directly conducting with B electrically conductive connected "and” A is indirectly, so via C, electrically connected to B “, and has a formulation of the type” A is connected to B “meaning" A is directly electrically connected to B ".
  • the invention proposes according to a first aspect, a selector for an on-load tap changer with a diverter switch, comprising
  • an insulating plate having a first side and a second, opposite side;
  • a first terminal connected to the first moving contact and connectable to a first branch or load branch of the diverter switch
  • Each moving contact can be selectively connected to each of the fixed contacts.
  • this selector allows both moving contacts to make a fixed contact simultaneously in the stationary state.
  • the entire on-load tap-changer is at a defined potential and thus has a high surge voltage resistance.
  • This voter is inexpensive due to fewer components and still safe. All parts of the selector are attached to only one insulating plate. This particularly space-saving design makes it possible to considerably reduce the size of the corresponding transformer, which is designed, for example, as a local network transformer. This fact reduces the overall cost of a system. Furthermore, this simple structure allows a particularly fast assembly of the voter.
  • the fixed contacts are easily inserted into the insulating plate. The installation of the moving contacts is also easy to carry out, as they are easy to install from every side.
  • Each fixed contact can be connected or connected to an associated winding tap of a control winding of a transformer or a controllable coil.
  • the moving contacts and fixed contacts are designed such that each moving contact can be selectively connected to each of the fixed contacts.
  • This selector can be formed as desired in any manner, for example, such that it has at least one or no additional insulating plate and / or at least one or no additional moving contact and / or at least one or no additional connection.
  • Each fixed contact on the first side has a first contact area for the first moving contact and on the second side has a second contact area for the second moving contact.
  • the contact areas of the fixed contacts correspond to the geometry of the moving contacts and thus ensure an electrically conductive connection, which is in particular form-fitting.
  • the contact areas may be formed, for example, as simple straight or curved pins.
  • the voter includes
  • a first Geneva wheel rotatably mounted on the insulating plate about an axis and carrying the first moving contact
  • a second Geneva wheel which is rotatably mounted about the axis on the insulating plate and carries the second moving contact
  • the axis is perpendicular to the two sides of the insulating plate.
  • each moving contact can be fastened by additional means, such as compression and / or tension springs, on the respective Geneva wheel in order to ensure a movable or floating bearing.
  • additional means such as compression and / or tension springs, on the respective Geneva wheel in order to ensure a movable or floating bearing.
  • the bearing axes may be formed as separate items or as a sprayed-on part of the insulating plate.
  • the voter includes
  • a common drive shaft which extends through the insulating plate and the driver and is rotatably mounted on the insulating plate;
  • the first driver has a first cam and the second driver has a second cam; -
  • Each cam engages in the respective Maltese wheel, so that with a complete rotation of a driver, the respective Geneva wheel rotates only a fraction of a complete rotation.
  • the drivers can have additional cams as needed, so that when turning a driver through 360 ° the respective Maltese wheel is operated accordingly more often.
  • the selector may have at least one or no additional drive shaft as needed.
  • the first cam is offset from the second cam, so that an alternate operation of the Geneva wheels takes place.
  • the drivers and thus arranged on these cams are offset at an angle to each other. The angle is so great that an offset actuation of the individual moving contacts takes place.
  • connections are connected to the moving contacts directly or via a stranded wire;
  • the terminals are connected to a contact shaft and / or a contact ring; and or
  • Each moving contact is formed one or more parts;
  • Each moving contact is movably mounted on the respective Maltese wheel; and or
  • Each fixed contact is connected to a line or with a line in one piece as a curved conductor is formed.
  • the fixed contact and the line can be connected by soldering, welding or another joining method.
  • both parts can also consist of a wire which has two contact areas for the moving contacts by deforming at one end.
  • the lines are attached to the insulating plate by means of a retaining ring and / or a mounting rail; and or
  • the lines are clipped to the insulating plate, plugged, snapped or snapped; and or
  • the cables are embedded or molded or injected or melted in or on the insulating plate.
  • the embedding of the lines in the insulating plate can be done as desired in any manner, for example by injection molding or low pressure casting.
  • the first Geneva wheel is rotatably mounted on a first bearing axis
  • the second Geneva wheel is rotatably mounted on a second bearing axis
  • the bearing axes and the insulating plate are integrally formed.
  • the invention proposes, according to a second aspect, an on-load tap-changer comprising
  • a diverter switch with a first load branch or branch which is connected or connected to the first connection and a second load branch or Branch connected or connected to the second connector.
  • the diverter switch is connected via a load dissipation to the ground potential.
  • FIG. 1 is a first page of a preferred embodiment of a selector for one
  • FIG. 2 a second page of the selector
  • FIG. Figure 3 shows the first side of the selector with a first Geneva wheel removed, a first embodiment of the first moving contact of the selector and a first embodiment of the fixed contacts of the selector;
  • FIG. Figure 4 shows the second side of the selector with a second Geneva wheel removed, a first embodiment of the second moving contact of the selector and the fixed contacts;
  • FIG. Fig. 5 is a detail view of drivers of the selector
  • FIG. 6 shows the first embodiment of the first moving contact and the first embodiments of the fixed contacts
  • FIG. 7 shows a second embodiment of the first moving contact and a second Embodiments of the fixed contacts
  • FIG. 8 shows a third embodiment of the first moving contact and a third embodiment of the fixed contacts
  • FIG. 9 a circuit diagram of an on-load tap-changer with diverter switch and selector.
  • a selector 10 with an insulating plate 1 1 is shown.
  • the insulating plate 1 1 consists of an insulating material such as plastic or fiber reinforced plastic (eg a mixture of polyamide or polyphthalamide with glass fibers).
  • the insulating plate 1 1 is substantially rectangular and has a first side 20 and a second, opposite side 30.
  • the fixed contacts 18 extend from the first side 20 through the insulating plate 1 1 to the second side 30.
  • the fixed contacts 18 are preferably made of copper and are additionally silvered.
  • a first Geneva wheel 23 with a movably mounted on it, first moving contact 21 is mounted on the first side 20 of the insulating plate 1 1, a first Geneva wheel 23 with a movably mounted on it, first moving contact 21 is mounted on the first side 20 of the insulating plate 1 1, a first Geneva wheel 23 with a movably mounted on it, first moving contact 21 is mounted.
  • the first Geneva wheel 23 is rotatably mounted about a shaft 41 on a first bearing axis 24.
  • the bearing axis 24 is exemplified as a separate, mechanically formed with the insulating plate 1 1 part. However, the bearing axis 24 can be sprayed with in the production of the insulating plate 1 1 and be formed with this as a unit.
  • a first driver 25 is arranged, which is actuated via a drive shaft 43, which is inserted through the insulating plate 1 1.
  • the first driver 25 a first cam 26 which engages in the first Geneva wheel 23 and this rotates.
  • the first driver 25 is rotated by correspondingly actuating the drive shaft 43 by 360 °.
  • the first Geneva wheel 23 is turned only piecemeal, ie by a fraction of a complete rotation, during a complete rotation of the first driver 25.
  • the continuous rotational movement of the first driver 25 is converted into a stepwise or piecewise rotation of the first Geneva wheel 23.
  • the combination of a Maltese wheel 23 and a driver 25 also enables a blocking function of both parts against each other in the idle state, ie before or after the operation of the selector 10.
  • the first moving contact 21 Prior to the actuation of the first Geneva wheel 23, the first moving contact 21 always contacts one of the fixed contacts 18 and electrically conductively connects it to a first terminal 27 (FIG 9) of a first branch 12 of the diverter switch 14.
  • the selector 10 is actuated, the first Geneva wheel becomes Turned 23 while the first moving contact 21 switched from this fixed contact 18 to a neighboring fixed contact 18.
  • Each fixed contact 18 has a first and a second contact region 22, 32.
  • the contacting of the fixed contacts 18 with the first moving contact 21 takes place on the first side 20 via the respective first contact region 22.
  • FIG. 2 the opposite side of the selector 10 is shown.
  • the fixed contacts 18 can be seen, which are connected via the lines 19 with the winding taps 16.
  • a second Geneva wheel 33 with a second moving contact 31 is mounted on the second side 30.
  • the second Geneva wheel 33 is rotatably mounted on a second bearing axle 34 about the axis 41.
  • a second driver 35 is disposed adjacent to the second Geneva wheel 33 and is actuated by the same drive shaft 43 as the first driver 25. In this case, the second driver 35, a second cam 36 which engages in the second Geneva wheel 33 and this rotates.
  • the first cam 26 is arranged offset to the second cam 36 and the drivers 25, 35 and thus the cams 26, 36 are arranged offset.
  • the drive shaft 43 is rotated by the staggered arrangement of the cam 26, 36 and driver 25, 35 a time-staggered actuation of the Geneva wheels 23, 33 and thus the moving contacts 21, 31 achieved.
  • the second moving contact 31 Prior to actuation of the second Geneva wheel 33, the second moving contact 31 always contacts one of the fixed contacts 18 and electrically conductively connects it to a second terminal 37 (FIG 9) of a second branch 13 of the diverter switch 14. Upon actuation of the selector 10, the second Geneva wheel becomes 33 turned while the second moving contact 31 switched from this fixed contact 18 to an adjacent fixed contact 18. In the embodiment described here, before the actuation of the selector 10, ie in the stationary state, the first and the second moving contact 21, 31 contact the same fixed contact 18. However, this can also vary as needed. The contacting of the fixed contacts 18 with the second moving contact 31 takes place on the second side 30 via the respective second contact region 32. In FIG. 3 again shows the first side 20 of the selector 10, but without the first Geneva wheel 23.
  • the fixed contacts 18 with their respective first contact regions 22 can be seen.
  • the lines 19, which connect the fixed contacts 18 with the respective winding tappings 16, run alternately on the first and second sides 20, 30 of the insulating plate 11.
  • the lines 19 are exemplified on the first side 20 with a first retaining ring 29 attached to the insulating plate 1 1.
  • the attachment can also be done in other ways.
  • the lines 19 can be snapped into sprayed latching contours or snap connections or integrated into the insulating plate 1 1 directly by injecting.
  • the lines 19 are mounted by way of example by means of additional fastening rails 40 on both sides 20, 30 of the insulating plate 1 1.
  • the attachment of the lines can also be done as previously described by snapping, gluing, etc.
  • the fixed contacts 18 and the lines 19 can also be made in one piece.
  • FIG. 4 again the second side 30 of the selector 10 is shown, but without the second Geneva wheel 33.
  • the fixed contacts 18 are shown with their respective second contact areas 32.
  • the lines 19 are attached by way of example on the second side 30 with a second retaining ring 39 on the insulating plate 1 1.
  • the attachment can also be done in other ways.
  • the lines 19 can be snapped into sprayed latching contours or snap connections or integrated into the insulating plate 1 1 directly by injecting.
  • the drivers 25, 35 are shown.
  • the cams 26, 36 face each other, but may also be differently oriented depending on the design and operative connection with the respective Geneva wheel 23, 33.
  • the drivers 25, 35 and thus the cams 26, 36 are offset by approximately 180 °.
  • the operation of the drive shaft 43, the individual Geneva wheels 23, 33 rotated with a time delay and thus the moving contacts 21, 31 actuated at different times.
  • the first embodiment of the first moving contact 21 and the first embodiment of the fixed contacts 18 are shown enlarged.
  • the moving contact 21 is formed on its front or contact side such that its contour is optimally adapted to the first contact region 22 of the fixed contact 18 and contacts it optimally.
  • the contour of the moving contact 21, 31 in conjunction with the geometry of the fixed contact 18 even allows a locking function.
  • the moving contact 21 is mounted by means of a compression spring 42 in the direction of the axis 41 resiliently and / or floating. Thus, a contact pressure is always generated when switching to a FestWallet18.
  • the electrically conductive connection between the moving contact 21 and its connection 27 is realized by way of example via a stranded wire 44, which is connected to an axial contact 49.
  • the axial contact 49 is fixedly connected to the first Geneva wheel 23 via a driver and rotates therewith.
  • the first terminal 27 is connected to a rotationally fixed, electrically conductive, silvered disc 50.
  • the disc 50 and the axial contact 49 are slidingly connected to each other electrically conductive.
  • the second moving contact 31, the second contact areas 32 and the second terminal 37 are formed on the second side 30 analogous to the first moving contact 21, the first contact area 22 and the first terminal 27.
  • FIG. 7 shows a detailed view of a second embodiment of the first moving contact 21 and a second embodiment of the fixed contacts 18.
  • a contact shaft 45 serves as a bearing for the first Geneva wheel 23 and contacting for the first terminal 27.
  • the contact shaft 45 has two opposite contact surfaces 46 running at right angles to the contact shaft 45.
  • Each first contact region 22 has two opposite, perpendicular to the contact shaft 45 extending contact surfaces 47.
  • These contact surfaces 46, 47 can each be individually contacted by a moving contact 21 or a multi-part moving contact 21 grinding.
  • the individual parts of the moving contact 21 are movable, resiliently mounted (floating) and on the Geneva wheel 23, not shown here, arranged or supported by this.
  • moving contact 21 is constructed spring-loaded, ie, the contact force is generated via the bias of the contact spring plate.
  • the material of which the moving contact is made for example, is electrically conductive and resilient and preferably CuSn6 or CuCrI Zr.
  • FIG. 8 shows a detailed view of a third embodiment of the first moving contact 21 and a third embodiment of the fixed contacts 18.
  • a contact ring 48 is used for contacting the first terminal 27.
  • the contact ring 48 has two opposite, concentrically around the contact shaft 45 extending contact surfaces 46.
  • Each first contact region 22 has two opposite contact surfaces 47 extending parallel to the contact shaft 45. These contact surfaces 46, 47 can be contacted by the multi-part moving contact 21 grinding.
  • moving contact 21 The individual parts of the moving contact 21 are movable, resiliently mounted (floating) and on the Geneva wheel 23, not shown here, arranged.
  • moving contact 21 is constructed spring-loaded, ie contact force is generated via the bias of the contact spring plate.
  • the material that makes up the moving contact is electrically conductive and resilient, and preferably CuSn6 or CuCrI Zr.
  • FIG. 9 an on-load tap changer 15 with a selector 10 according to the invention and a diverter switch 14 is shown schematically.
  • the selector 10 has a first side 20 and a second side 30 with fixed contacts 18 arranged on a circle.
  • the fixed contacts 18 are each electrically connected via a line 19 to an associated winding tap 16 of a control winding 17 of a control transformer.
  • the first moving contact 21 is electrically conductively connected via the first terminal 27 to the first branch 12 of the diverter switch 14.
  • the second moving contact 31 is electrically conductively connected via the second connection 27 to the second branch 13 of the diverter switch 14.
  • the diverter switch 14 is also electrically connected to a load dissipation 51 and thus the ground potential. Inside the diverter switch, the switchover takes place under load by means of different switching means 52 from the first branch to the second branch and vice versa.

Landscapes

  • Slide Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Manufacture Of Switches (AREA)
  • Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Networks Using Active Elements (AREA)
  • Processing Of Color Television Signals (AREA)
  • Push-Button Switches (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

L'invention concerne un sélecteur (10) pour un commutateur d'étage de charge (15) avec un commutateur de charge (14), comprenant : une plaque d'isolation (11) avec une première face (20) et une seconde face opposée (30) ; plusieurs contacts fixes (18) qui s'étendent de la première face (20) à la seconde face (30) à travers la plaque d'isolation (11) ; un premier contact mobile (21) sur la première face (20) ; un second contact mobile (31) sur la seconde face (30) ; un premier branchement (27) qui est relié au premier contact mobile (21) ; un second branchement (37) qui est relié au contact mobile (31) ; chaque contact mobile (21, 31) pouvant être relié au choix à chacun des contacts fixes (18).
EP17710696.0A 2016-03-11 2017-03-08 Sélecteur pour un commutateur d'étage de charge et commutateur d'étage de charge avec commutateur de charge et sélecteur Active EP3427283B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL17710696T PL3427283T3 (pl) 2016-03-11 2017-03-08 Wybierak dla przełącznika zaczepów pod obciążeniem oraz przełącznik zaczepów pod obciążeniem z przełącznikiem obciążenia i wybierakiem
HRP20201132TT HRP20201132T1 (hr) 2016-03-11 2020-07-17 Selektor za regulacijsku sklopku pod opterećenjem i regulacijska sklopka pod opterećenjem s komutacijskim ormarom i selektorom

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016104499.7A DE102016104499B3 (de) 2016-03-11 2016-03-11 Wähler für einen Laststufenschalter und Laststufenschalter mit Lastumschalter und Wähler
PCT/EP2017/055391 WO2017153447A1 (fr) 2016-03-11 2017-03-08 Sélecteur pour un commutateur d'étage de charge et commutateur d'étage de charge avec commutateur de charge et sélecteur

Publications (2)

Publication Number Publication Date
EP3427283A1 true EP3427283A1 (fr) 2019-01-16
EP3427283B1 EP3427283B1 (fr) 2020-05-06

Family

ID=58277266

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17710696.0A Active EP3427283B1 (fr) 2016-03-11 2017-03-08 Sélecteur pour un commutateur d'étage de charge et commutateur d'étage de charge avec commutateur de charge et sélecteur

Country Status (15)

Country Link
US (1) US10643802B2 (fr)
EP (1) EP3427283B1 (fr)
JP (1) JP7066620B2 (fr)
KR (1) KR102355954B1 (fr)
CN (1) CN108463868B (fr)
AU (1) AU2017229313B2 (fr)
BR (1) BR112018016707A2 (fr)
DE (1) DE102016104499B3 (fr)
ES (1) ES2805352T3 (fr)
HR (1) HRP20201132T1 (fr)
MX (1) MX2018010952A (fr)
PL (1) PL3427283T3 (fr)
PT (1) PT3427283T (fr)
WO (1) WO2017153447A1 (fr)
ZA (1) ZA201804552B (fr)

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DE102018112013A1 (de) * 2018-05-18 2019-11-21 Maschinenfabrik Reinhausen Gmbh Kontaktsystem für einen laststufenschalter
EP3761333B1 (fr) * 2019-07-01 2023-08-30 Hitachi Energy Switzerland AG Agencement d'entraînement pour un changeur de prise
EP3761332B8 (fr) * 2019-07-01 2023-12-06 Hitachi Energy Ltd Changeur de prise en charge comprenant une barrière d'isolation
DE102019130462B4 (de) * 2019-11-12 2022-03-24 Maschinenfabrik Reinhausen Gmbh Wähler für Laststufenschalter sowie Laststufenschalter damit
KR102401801B1 (ko) * 2020-09-07 2022-05-25 (주) 모노인더스트리 자동 제어 무부하 탭 절환기
US20230411088A1 (en) * 2021-02-16 2023-12-21 Hitachi Energy Switzerland Ag Switching system for an on-load tap changer, on-load tap changer and method for switching a tap connection of an on-load tap changer
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Also Published As

Publication number Publication date
CN108463868A (zh) 2018-08-28
US10643802B2 (en) 2020-05-05
JP7066620B2 (ja) 2022-05-13
AU2017229313A1 (en) 2018-10-25
PT3427283T (pt) 2020-07-01
WO2017153447A1 (fr) 2017-09-14
PL3427283T3 (pl) 2020-10-19
BR112018016707A2 (pt) 2018-12-26
KR20180121559A (ko) 2018-11-07
JP2019509634A (ja) 2019-04-04
ES2805352T3 (es) 2021-02-11
DE102016104499B3 (de) 2017-04-27
US20190096596A1 (en) 2019-03-28
AU2017229313B2 (en) 2021-07-08
ZA201804552B (en) 2019-05-29
CN108463868B (zh) 2020-08-07
MX2018010952A (es) 2018-11-22
EP3427283B1 (fr) 2020-05-06
HRP20201132T1 (hr) 2020-10-30
KR102355954B1 (ko) 2022-01-25

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