EP2016603B1 - Leistungsschalter, insbesondere hochstromschalter - Google Patents

Leistungsschalter, insbesondere hochstromschalter Download PDF

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Publication number
EP2016603B1
EP2016603B1 EP07728883.5A EP07728883A EP2016603B1 EP 2016603 B1 EP2016603 B1 EP 2016603B1 EP 07728883 A EP07728883 A EP 07728883A EP 2016603 B1 EP2016603 B1 EP 2016603B1
Authority
EP
European Patent Office
Prior art keywords
pole
insulating body
circuit breaker
power switch
unit
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
EP07728883.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2016603A1 (de
Inventor
Ralf-Peter Kurth
Clemens RÜTHNICK
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2016603A1 publication Critical patent/EP2016603A1/de
Application granted granted Critical
Publication of EP2016603B1 publication Critical patent/EP2016603B1/de
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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring

Definitions

  • the invention relates to a circuit breaker, in particular a high-current switch, having at least one pole unit with a pole head and a pole carrier and a contact system arranged therebetween, and a drive unit for initiating a switching movement in a moving contact of the contact system, each pole head and each pole carrier of the pole unit each by means of a support means are attached with two juxtaposed support elements on a retaining wall of the circuit breaker.
  • Such a circuit breaker is known for example from the Siemens publication "Siemens HG 11.11, 1999".
  • the high-current switch disclosed there as a circuit breaker comprises three pole units, each having a pole head and a pole carrier, and a drive unit for initiating a switching movement into a moving contact of a contact system of the respective pole unit.
  • Each pole head and each pole carrier with the contact system arranged therebetween are fastened to a retaining wall of the circuit breaker by means of two support elements arranged next to one another.
  • two mutually adjacent support elements are provided for pole head and pole carrier in order to ensure sufficient stability in the large transverse forces due to the high currents to the pole units.
  • Another power switch which has a one-piece receiving device for the pole unit, is from the WO 02/39557 known.
  • Object of the present invention is to develop a circuit breaker of the type mentioned, which has improved stability and insulation properties in a structurally simple construction.
  • both the support means of the pole head and the support means of the pole carrier instead of the two support elements comprise a single integrally formed insulating body.
  • the support means comprises a metal retaining plate, which is fastened on the one hand to the insulating body and on the other hand to the retaining wall.
  • a metal retaining plate is a simple way of fastening the insulating body realized on the retaining wall of the circuit breaker with distribution of mechanical stress.
  • fastening elements for fastening the insulating body to the pole unit are provided in the insulating body of the metallic retaining plate opposite.
  • FIG. 1 shows a high-current switch as a circuit breaker for high current applications in a cross-sectional view.
  • the circuit breaker 1 comprises three pole units for the three phases of an alternating current to be switched, of which only one polar unit is shown in FIG. 2.
  • the pole unit 2 comprises a pole head 3 and a pole carrier 4, between which a contact system 5 in the form of a vacuum interrupter 5 for switching a current between a first terminal 6 of the pole head 3 and a second terminal 7 of the pole carrier 4 is arranged.
  • a moving contact 8 the vacuum interrupter 5 is coupled via a drive linkage 9 to a drive unit 10 of the circuit breaker, wherein the drive unit 10 is designed to initiate a switching movement in the moving contact 8 of the contact system 5.
  • the pole unit 2 is secured by means of support means 11 and 12 and holding devices 13 and 14, respectively, to a retaining wall 15 of the circuit breaker.
  • the support means 11 and 12 are used for electrical insulation of the pole unit 2 relative to the retaining wall 15 and the drive unit 10 of the circuit breaker and for mechanical stabilization of the entire arrangement.
  • FIG. 2 shows a cross-sectional view of the support device 11 from FIG. 1 wherein the support means 12 has the same construction.
  • the support device 11 comprises a one-piece insulating body 16 with an oval formation made of cast resin, which by means of two juxtaposed screw 17, 18 on the pole unit 2 from FIG. 1 is fastened, and two juxtaposed screw 19 and 20 is fixed to a metallic support plate 21, which in turn is screwed by means of a fastening means 22 in the form of a screw with the holding device 13 of the circuit breaker.
  • the insulating body 16 has in the exemplary embodiment an oval cross-section with an approximately twice as long longitudinal extent compared to its transverse extent and is also on its outside with circumferential ribs 23 provided, which serve to increase the tracking resistance of the insulator.
  • FIG. 3 shows a perspective view of the insulating body and the support means 11 of FIG. 2 in which in particular the circumferential ribs 23 can be seen, as well as the attachment of the metallic support plate 21 through the screw 19 and 20 of the insulator. From the metal retaining plate out the screw 22 extends to attach the support means to the retaining wall of the circuit breaker.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP07728883.5A 2006-05-10 2007-05-08 Leistungsschalter, insbesondere hochstromschalter Active EP2016603B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202006007974U DE202006007974U1 (de) 2006-05-10 2006-05-10 Leistungsschalter, insbesondere Hochstromschalter
PCT/EP2007/054430 WO2007128814A1 (de) 2006-05-10 2007-05-08 Leistungsschalter, insbesondere hochstromschalter

Publications (2)

Publication Number Publication Date
EP2016603A1 EP2016603A1 (de) 2009-01-21
EP2016603B1 true EP2016603B1 (de) 2019-06-26

Family

ID=36934341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07728883.5A Active EP2016603B1 (de) 2006-05-10 2007-05-08 Leistungsschalter, insbesondere hochstromschalter

Country Status (5)

Country Link
EP (1) EP2016603B1 (es)
CN (2) CN200993926Y (es)
DE (1) DE202006007974U1 (es)
ES (1) ES2747258T3 (es)
WO (1) WO2007128814A1 (es)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147829A (en) * 1981-03-06 1982-09-11 Tokyo Shibaura Electric Co Vacuum breaker
CH678126A5 (en) * 1989-01-30 1991-07-31 Sprecher Energie Ag Medium=voltage vacuum switch with rolling contact arrangement - has switch surrounded by section of external connector which extends into insulating housing with aperture for contact plunger
DE10056646C1 (de) 2000-11-09 2002-03-28 Siemens Ag Aufnahmeeinrichtung für Schaltröhren von Leistungsschalteranlagen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2016603A1 (de) 2009-01-21
DE202006007974U1 (de) 2006-08-17
CN200993926Y (zh) 2007-12-19
ES2747258T3 (es) 2020-03-10
CN101432833A (zh) 2009-05-13
WO2007128814A1 (de) 2007-11-15

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