EP0014988B1 - Kontaktanordnung für Stufenwähler von Stufentransformatoren - Google Patents

Kontaktanordnung für Stufenwähler von Stufentransformatoren Download PDF

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Publication number
EP0014988B1
EP0014988B1 EP80100816A EP80100816A EP0014988B1 EP 0014988 B1 EP0014988 B1 EP 0014988B1 EP 80100816 A EP80100816 A EP 80100816A EP 80100816 A EP80100816 A EP 80100816A EP 0014988 B1 EP0014988 B1 EP 0014988B1
Authority
EP
European Patent Office
Prior art keywords
contact
run
ramps
bridge
contact bridge
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.)
Expired
Application number
EP80100816A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0014988A1 (de
Inventor
Alexander Bleibtreu
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
Original Assignee
Maschinenfabrik Reinhausen GmbH
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 filed Critical Maschinenfabrik Reinhausen GmbH
Priority to AT80100816T priority Critical patent/ATE1793T1/de
Publication of EP0014988A1 publication Critical patent/EP0014988A1/de
Application granted granted Critical
Publication of EP0014988B1 publication Critical patent/EP0014988B1/de
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a contact arrangement for step selectors of step transformers, as described in the preamble of claim 1.
  • Such contact arrangements are known: DE-AS 1 665 192.
  • contact bridges of this type there is an essential advantage that the contact bridges can be produced from flat material by simple stamping.
  • these contact bridges it is readily possible with these contact bridges to design them in such a way that there are four contact points for each individual contact bridge, that is to say two at each end, the contact points of the two ends of the individual contact bridge then being able to be arranged at right angles to one another.
  • the main advantage of the new contact arrangement lies in the following:
  • the contact arrangement is suitable for high currents. Nevertheless, the contact bridges can be designed as simple stamping parts, and simple round bars can still be used as counter contacts.
  • a four-point support is guaranteed for each individual contact bridge despite doubling the number of contact bridges, especially since, as in the case of the single-bridge arrangement, the two-point support of one end of each individual bridge can be offset at right angles to the two-point support of its other end.
  • the two contact points are formed in the area of the V-shaped indentation on the narrow side of the individual contact bridge, the widened contact surfaces prevent the contact bridges from contacting the contact rod with a relatively narrow surface.
  • the contact rod at the contact point is worked out relatively quickly by a high surface load. Furthermore, since they are designed as simple embossed parts, the individual contact bridges can easily be shaped in such a way that the electrodynamic current forces effective between the opposing contact bridges can be exploited well for the contact pressure amplification.
  • the contact arrangement essentially consists of two opposing contact bridges 1, 2, of which only the two upper ones are shown in FIG. 1 for the sake of clarity, of a slip ring 3 on which the contact bridges 1 and 2 are always present and from a rod-shaped counter-contact 4.
  • the contact bridges 1 and 2 are pivotable in the direction of the arrow, that is to say laterally. They form the rod-shaped counter-contact between themselves, forming two contact points 5 and 6 (FIG. 4).
  • the V-shaped indentation 7 is used, which is provided on the angled ends 8, 9 of the two contact bridges 1, 2, that is to say on their narrow side.
  • contact surfaces 10 and 11 are provided on both sides of the V-shaped indentation (see also FIG. 2).
  • these run-up surfaces are only provided on one of the opposing contact bridges, namely on contact bridge 2, and they are significantly widened compared to the material thickness 12 of contact bridge 2 (FIG. 2). They also serve as a stop for the other contact bridge 1, so that this as soon as the contact surfaces 10 or 11 on the contact rod 4 run up, is taken. If the opposing contact bridges 1 and 2 are pressed apart when they run onto the contact rod 4 (compare FIG. 3), then the surfaces 13 of the contact bridges 2 abut the steps 14 of the other contact bridges 1, so that these are also pressed apart and effortlessly onto the contact rod 4 can accumulate.
  • the upper contact bridge 1 is provided with a recess 15 so that it connects to the slip ring 3 with the two webs 16, 17 that result at the end is present.
  • the lower contact bridge 2 is cranked into the recess 15 with its narrowed end 18, and the narrowed end is also formed by a recess 19 so that a two-point support takes place.
  • an embossing can of course also be carried out.
  • the contact bridges 1, 2 are cranked in the central area so that there is as small a distance as possible between the individual contact bridges arranged in parallel and opposite one another, so that the electrodynamic forces can be used for the contact pressure amplification. It should also be mentioned that the springs producing the contact pressure are not shown for the sake of clarity. They are arranged in the usual way.

Landscapes

  • Contacts (AREA)
  • Housings And Mounting Of Transformers (AREA)
EP80100816A 1979-02-27 1980-02-19 Kontaktanordnung für Stufenwähler von Stufentransformatoren Expired EP0014988B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100816T ATE1793T1 (de) 1979-02-27 1980-02-19 Kontaktanordnung fuer stufenwaehler von stufentransformatoren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2907654A DE2907654C2 (de) 1979-02-27 1979-02-27 Kontaktanordnung für Stufenwähler von Stufentransformatoren
DE2907654 1979-02-27

Publications (2)

Publication Number Publication Date
EP0014988A1 EP0014988A1 (de) 1980-09-03
EP0014988B1 true EP0014988B1 (de) 1982-11-10

Family

ID=6064035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100816A Expired EP0014988B1 (de) 1979-02-27 1980-02-19 Kontaktanordnung für Stufenwähler von Stufentransformatoren

Country Status (4)

Country Link
EP (1) EP0014988B1 (enrdf_load_stackoverflow)
JP (1) JPS55117214A (enrdf_load_stackoverflow)
AT (1) ATE1793T1 (enrdf_load_stackoverflow)
DE (1) DE2907654C2 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115842252B (zh) * 2022-11-30 2023-09-22 温州宏丰特种材料有限公司 一种电触头组件及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE632255A (enrdf_load_stackoverflow) * 1962-05-11
DE1283327B (de) * 1965-12-03 1968-11-21 Siemens Ag Kontaktanordnung fuer Schaltgeraete
DE1665192B1 (de) * 1968-02-15 1971-10-07 Reinhausen Maschf Scheubeck Kontaktanordnung fuer Stufenwaehler,Wender oder Umsteller an Regeltransformatoren

Also Published As

Publication number Publication date
DE2907654B1 (de) 1980-09-04
EP0014988A1 (de) 1980-09-03
JPH0143411B2 (enrdf_load_stackoverflow) 1989-09-20
ATE1793T1 (de) 1982-11-15
DE2907654C2 (de) 1981-07-09
JPS55117214A (en) 1980-09-09

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