EP3579260B1 - Système de contacts pour un dispositif changeur de prises électriques en charge - Google Patents

Système de contacts pour un dispositif changeur de prises électriques en charge Download PDF

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Publication number
EP3579260B1
EP3579260B1 EP19382453.9A EP19382453A EP3579260B1 EP 3579260 B1 EP3579260 B1 EP 3579260B1 EP 19382453 A EP19382453 A EP 19382453A EP 3579260 B1 EP3579260 B1 EP 3579260B1
Authority
EP
European Patent Office
Prior art keywords
contacts
electrical contact
electrical
contact
changer device
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.)
Active
Application number
EP19382453.9A
Other languages
German (de)
English (en)
Other versions
EP3579260A1 (fr
Inventor
Javier Larrieta Zubia
Ibon Larracoechea Zuluaga
Luis del Río Etayo
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.)
Ormazabal Corporate Technology AIE
Original Assignee
Ormazabal Corporate Technology AIE
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 Ormazabal Corporate Technology AIE filed Critical Ormazabal Corporate Technology AIE
Priority to SI201930306T priority Critical patent/SI3579260T1/sl
Priority to RS20220795A priority patent/RS63519B1/sr
Publication of EP3579260A1 publication Critical patent/EP3579260A1/fr
Application granted granted Critical
Publication of EP3579260B1 publication Critical patent/EP3579260B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/18—Contacts characterised by the manner in which co-operating contacts engage by abutting with subsequent sliding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/56—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
    • 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
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • 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

Definitions

  • the invention relates to a system of electrical contacts for application in on-load tap changer devices, and specifically to the association of these contacts with the rest of the components of the tap changer device, as well as to the arrangement of said contacts which has an effect on the compact size of the tap changer device and on the electrical connection established between same.
  • a tap changer device for application in transformers can consist of an off-load or on-load tap changer, i.e., it can allow changing taps with the transformer being de-energized or energized.
  • the tap changer device increases or reduces the number of turns of the primary winding by means of the change between taps, thereby changing the transformation ratio, or in other words varying the voltage in the secondary winding of the transformer.
  • a tap changer device which can be a three-phase or single-phase device, comprises for each phase a plurality of electrical contacts, which are associated with taps, switching means, and at least one selection means for selecting said taps, such that the actuation of the switching means and the actuation of the tap selection means are intrinsically coordinated to perform the connection-disconnection between these electrical contacts and the taps, thereby obtaining the changing of said taps.
  • Patent application US2015/311006 A1 relates to a tapping arrangement for a transformer, the arrangement comprising a plurality of fixed contacts, a movable rotary contact, a transition rotor with pairs of transition contacts, an interrupter coupling assembly and driving motor(s) are compacted into a single vacuum chamber.
  • patent application EP3086343 A1 relates to an on-load tap changer device, which allows the automatic regulation of voltage in the secondary winding of high-voltage electrical equipment by selecting the number of turns of the primary winding by means of an on-load tap changer device.
  • the present invention solves the aforementioned drawbacks by providing a system of contacts for an on-load tap changer device as set forth in claim 1 and envisaged for being used in a distribution transformer, obtaining as a result a compact tap changer device, having a reduced volume and weight, which allows an automatic voltage control and ultimately does not make it necessary to vary the constructive arrangement of the transformer.
  • the system of contacts object of the present invention comprises:
  • first electrical contact and the second electrical contact are incorporated in a plate fixed to the structure of the tap changer device, leaving at least one of their ends projecting from the fixed plate free, where said plate can be made of insulating material, with said first and second electrical contacts facing and in correspondence with the third electrical contact which is mobile and arranged in the tap selection means. More specifically, the first and second electrical contacts are facing at their free end the third electrical contact on the longitudinal axis of said first and second electrical contacts, whereby being able to establish an axial electrical contact. Likewise, the longitudinal axis of the first and second electrical contacts is parallel to the axis of the tap selection means where the third electrical contact is assembled.
  • the electrical contact which is established between the first/second electrical contact and the third electrical contact is axial and sliding, where it is the third electrical contact which slides over the first and second electrical contacts.
  • Said third electrical contact is assembled integrally with the tap selection means comprising a rotational movement.
  • This third electrical contact comprises two contacts with an annular geometry which can be concentric and two other contacts with a geometry in the form of an annular sector, with one of the contacts with an annular geometry being at the same potential as one of the contacts with a geometry in the shape of an annular sector and the other contact with an annular geometry at the same potential as the other contact with a geometry in the shape of an annular sector.
  • the first and the second electrical contacts comprise at least one elastic means, for example, a spring, axially pushing at least one end of said first and second electrical contacts against the third electrical contact, thereby assuring connection between the electrical contacts and at the same time providing mechanical adaptability.
  • elastic means for example, a spring
  • the system of contacts (1) for application in a tap changer device comprises for each phase at least a first electrical contact (2, 3), which can comprise a pair of contacts attached by conductive means (26) and associated with at least one tap (6, 7, 8, 9, 10, 11, 12, 13, 14, 15) of the tap changer device, a second electrical contact (4, 5) associated with at least one switching means (22, 23), and a third electrical contact (16, 17, 18, 19) associated with at least one tap selection means (20).
  • the first electrical contacts (2, 3) and the second electrical contacts (4, 5) are incorporated in a plate (21) fixed to the structure of the tap changer device, leaving at least one of their ends projecting from said plate (21) free, which plate (21) can be made of an insulating material, with the free end of said first and second electrical contacts (2, 3, 4, 5) facing and in correspondence with the third electrical contacts (16, 17, 18, 19) on a longitudinal axis (27) of the first and second electrical contacts (2, 3, 4, 5), as shown in Figure 3 .
  • the electrical connection of the first and second contacts (2, 3, 4, 5) with the third electrical contacts (16, 17, 18, 19) is axial, given that the first and second contacts (2, 3, 4, 5) comprise a movement in the direction of their longitudinal axis (27) and are facing in the same axial direction the third electrical contacts (16, 17, 18, 19), and furthermore sliding, given that the third electrical contacts (16, 17, 18, 19) slide over the first and second contacts (2, 3, 4, 5), the third electrical contacts (16, 17, 18, 19) comprising a rotational movement as they are integral with the tap selection means (20) having this same movement.
  • the third electrical contacts (16, 17) comprise an annular geometry and the third electrical contacts (18, 19) comprise a geometry in the form of an annular sector, with the contacts (16) and (17) being concentric. Electrical contact (16) is at the same potential as electrical contact (18), and electrical contact (17) is at the same potential as electrical contact (19).
  • the first and second electrical contacts (2, 3, 4, 5) comprise at least one elastic means (24) axially pushing at least one end (25) of said first and second contacts (2, 3, 4, 5) against the third electrical contact (16, 17, 18, 19), thereby assuring the connection between contacts.

Landscapes

  • Breakers (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Push-Button Switches (AREA)
  • Ticket-Dispensing Machines (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (5)

  1. Système de contacts (1) pour un dispositif changeur de prise en charge, où le système (1) comprend :
    - au moins un premier contact électrique (2, 3) par phase associé à au moins une prise (6, 7, 8, 9, 10, 11, 12, 13, 14, 15) également agencée pour chaque phase,
    - au moins un deuxième contact électrique (4, 5) par phase associé à au moins un moyen de commutation (22, 23) également agencé pour chaque phase, et
    - au moins un troisième contact électrique (16, 17, 18, 19) par phase associé à au moins un moyen de sélection de prise (20) également agencé pour chaque phase,
    dans lequel
    - le premier contact électrique (2, 3) et le deuxième contact électrique (4, 5) sont incorporés dans une plaque (21) fixée à la structure du dispositif changeur de prise, laissant libre au moins une de leurs extrémités dépassant de la plaque (21), l'extrémité libre desdits premier et deuxième contacts électriques (2, 3, 4, 5) faisant face et en correspondance avec le troisième contact électrique (16, 17, 18, 19) sur un axe longitudinal (27) des premier et deuxième contacts électriques (2, 3, 4, 5), l'axe longitudinal (27) des premier et deuxième contacts (2, 3, 4, 5) étant parallèle à un axe (28) du ou des moyens de sélection de prise (20) ;
    caractérisé en ce que
    le contact électrique des premier et deuxième contacts (2, 3, 4, 5) avec le troisième contact électrique (16, 17, 18, 19) est axial et coulissant ;
    - et en ce que les premier et deuxième contacts électriques (2, 3, 4, 5) comprennent au moins un moyen élastique (24) poussant axialement au moins une extrémité (25) desdits premier et deuxième contacts (2, 3, 4, 5) contre le troisième contact électrique (16, 17, 18, 19).
  2. Système de contacts (1) selon la revendication 1, caractérisé en ce que le troisième contact électrique (16, 17, 18, 19) est mobile et solidaire du ou des moyens de sélection de prise (20) comprenant un mouvement de rotation.
  3. Système de contacts (1) selon la revendication 2, caractérisé en ce que le troisième contact électrique (16, 17, 18, 19) comprend deux contacts (16, 17) à géométrie annulaire et deux contacts (18, 19) à géométrie sous la forme d'un secteur annulaire.
  4. Système de contacts (1) selon la revendication 3, caractérisé en ce que les contacts électriques (16, 17) à géométrie annulaire sont concentriques, l'un desdits contacts électriques (16, 17) étant au même potentiel que le contact (18) à géométrie de secteur annulaire et l'autre étant au même potentiel que l'autre contact (19) à géométrie de secteur annulaire.
  5. Système de contacts (1) selon la revendication 4, caractérisé en ce que le premier contact électrique (2, 3) comprend une paire de contacts attachés par des moyens conducteurs (26).
EP19382453.9A 2018-06-04 2019-06-03 Système de contacts pour un dispositif changeur de prises électriques en charge Active EP3579260B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201930306T SI3579260T1 (sl) 2018-06-04 2019-06-03 Sistem kontaktov za napravo bremenskega odcepnega preklopnika
RS20220795A RS63519B1 (sr) 2018-06-04 2019-06-03 Sistem kontakata za uređaj za promenu izvoda transformatora pod opterećenjem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201830837U ES1216144Y (es) 2018-06-04 2018-06-04 Sistema de contactos para dispositivo cambiador de tomas electricas en carga

Publications (2)

Publication Number Publication Date
EP3579260A1 EP3579260A1 (fr) 2019-12-11
EP3579260B1 true EP3579260B1 (fr) 2022-06-01

Family

ID=62995868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19382453.9A Active EP3579260B1 (fr) 2018-06-04 2019-06-03 Système de contacts pour un dispositif changeur de prises électriques en charge

Country Status (7)

Country Link
EP (1) EP3579260B1 (fr)
ES (2) ES1216144Y (fr)
HU (1) HUE059542T2 (fr)
PL (1) PL3579260T3 (fr)
PT (1) PT3579260T (fr)
RS (1) RS63519B1 (fr)
SI (1) SI3579260T1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1867147A (en) * 1930-06-10 1932-07-12 Bbc Brown Boveri & Cie Tap changing switch and system
DE102011113718A1 (de) 2011-09-17 2013-03-21 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
DE202012101475U1 (de) 2012-04-20 2013-07-23 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
EP2981982B1 (fr) * 2012-12-03 2017-06-14 Min Chen Système de changement de prises de transformateurs et procédés d'utilisation du système
CN103400715B (zh) * 2013-08-08 2015-09-30 贵州长征电气有限公司 多档位位置信号传送装置
EP3086343B1 (fr) * 2015-04-21 2018-11-14 Ormazabal Corporate Technology, A.I.E. Changeur de prises en charge

Also Published As

Publication number Publication date
RS63519B1 (sr) 2022-09-30
SI3579260T1 (sl) 2022-10-28
EP3579260A1 (fr) 2019-12-11
PT3579260T (pt) 2022-07-26
ES1216144Y (es) 2018-10-24
ES1216144U (es) 2018-08-03
ES2924507T3 (es) 2022-10-07
HUE059542T2 (hu) 2022-11-28
PL3579260T3 (pl) 2022-09-19

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