WO1993009555A1 - Entrainement de pole de disjoncteur - Google Patents

Entrainement de pole de disjoncteur Download PDF

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Publication number
WO1993009555A1
WO1993009555A1 PCT/AT1992/000133 AT9200133W WO9309555A1 WO 1993009555 A1 WO1993009555 A1 WO 1993009555A1 AT 9200133 W AT9200133 W AT 9200133W WO 9309555 A1 WO9309555 A1 WO 9309555A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
switching
lever
pole
lifting element
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.)
Ceased
Application number
PCT/AT1992/000133
Other languages
German (de)
English (en)
Inventor
Viktor Jung
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.)
Andritz Hydro GmbH Austria
Original Assignee
Andritz Hydro GmbH Austria
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 Andritz Hydro GmbH Austria filed Critical Andritz Hydro GmbH Austria
Publication of WO1993009555A1 publication Critical patent/WO1993009555A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H01H33/60—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
    • H01H2033/6667—Details concerning lever type driving rod arrangements

Definitions

  • the invention relates to a drive for a pole of a circuit breaker, in particular for a vacuum holder or an SF6 switch, a switch contact of the pole being movable by means of a pre-lifting element having a contact force spring, and the pre-lifting element being connected to a switching rod via a link lever the switching drive is coupled.
  • Circuit breakers are used to automatically switch on and off any currents up to the rated switching capacity of the circuit breaker. As with all switching elements used in networks, an above-average level of reliability is required. This requirement is one of the most important criteria when designing the individual parts of the circuit breaker. In the "Taschenbuch der Elektrotechnik", by
  • Insulating rod is equipped, is moved.
  • the pre-stroke element which is directly connected to the movable switch contact, is equipped with a contact force spring and an opening spring.
  • the other end of the pre-lifting element is connected to the articulation lever.
  • the linkage lever is moved via an isolating rod, which is the connection to the other drive linkage and the shift drive.
  • the invention is therefore based on the object of providing a drive for a pole of a circuit breaker which meets all the requirements for the operational reliability of switching elements in networks and which can be produced, operated and maintained as economically as possible. Another task is to design the circuit breaker in such a way that as few parts of the drive linkage as possible are live to avoid unnecessary ones
  • the drive of a pole of a circuit breaker is characterized according to the invention in that the pre-lifting element is articulated to a known insulating rod, which is connected directly to the movable switching contact, via a first angled articulation lever, both the pre-lifting element and the insulating rod each having an associated one first or
  • Articulated lever is articulated, and that the pivot point of the second articulated lever is provided in its corner region and is movably mounted there, and that the leg end of the articulated lever facing away from the forward lifting element is movably connected to the drive via a drive linkage.
  • the advantage of this embodiment is that by arranging a second articulated lever, the pre-lifting element can only assume certain positions corresponding to the switching position. The driving force is deflected by means of the two link levers so that it always acts centrally on the movable switching contact, which is a precise
  • the dead center of the switching movement is arranged between the on or off switching position of the drive elements.
  • the advantage of this development is that the contact force is to be applied solely by the pre-lifting element and its contact force spring.
  • the drive and the drive linkage are therefore only briefly loaded during the switching on and off. If the respective dead point is exceeded, the drive and the drive linkage are completely relieved and can even be completely dismantled. This brings great advantages for maintenance and repair work.
  • the illustration shows an insulating rod 4 which is connected directly to the movable switching contact and drives it.
  • This insulating rod 4 is articulated at the other end to a leg end 12 of the angled first articulation lever 1.
  • the first articulation lever is rotatably mounted in its corner area 11 and is articulated to the pre-lifting element 3 at the other leg end 13.
  • the pre-lifting element 3 which is equipped with a contact force spring, is also connected in an articulated manner at the end facing away from the first articulation lever to a leg end 23 of a second articulation lever 2.
  • the second link lever 2 is also angular and rotatably supported in its corner region 21. With that facing away from the pre-lifting element 3,
  • the second link lever 2 is articulated to the drive via a drive rod 5.
  • the elements of the switching drive move over the switching dead center, which is arranged between the switching end positions, and engage in the respective end position. This brings the essential
  • the contact force is to be applied solely by the contact force spring of the pre-lifting element 3.
  • the drive can therefore also be serviced, repaired or even dismantled and replaced when the circuit breaker is switched on.
  • Another major advantage is that the insulating rod 4 is arranged immediately after the movable switch contact, which the number of live parts in

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention a pour objet de créer un entraînement de pôle de disjoncteur qui réponde à toutes les exigences de fiabilité relatives aux éléments de commutation dans des réseaux. L'illustration montre une tige isolante (4) qui est reliée au contact de commutation mobile et qui entraîne celui-ci. Cette tige isolante (4) s'articule, à son autre extrémité, sur un premier levier articulé (1) de forme angulaire. Ce levier articulé (1) est monté pivotant et s'articule de même sur l'élément d'avance (3). L'élément d'avance (3) s'articule à son autre extrémité, sur un deuxième levier articulé angulaire (2) qui est également monté pivotant. Ce deuxième levier articulé (2) s'articule sur l'entraînement par l'intermédiaire d'une tige d'entraînement (5). L'invention permet, pour la première fois, de produire un entraînement qui réponde à toutes les exigences de fiabilité, étant donné que tous les éléments présentent une grande simplicité de conception et sont de ce fait insensibles aux perturbations.
PCT/AT1992/000133 1991-10-29 1992-10-28 Entrainement de pole de disjoncteur Ceased WO1993009555A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA2144/91 1991-10-29
AT214491A ATA214491A (de) 1991-10-29 1991-10-29 Antrieb für einen pol eines leistungsschalters

Publications (1)

Publication Number Publication Date
WO1993009555A1 true WO1993009555A1 (fr) 1993-05-13

Family

ID=3528715

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1992/000133 Ceased WO1993009555A1 (fr) 1991-10-29 1992-10-28 Entrainement de pole de disjoncteur

Country Status (2)

Country Link
AT (1) ATA214491A (fr)
WO (1) WO1993009555A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025375A (en) * 1960-04-04 1962-03-13 Gen Electric Electric circuit breaker having a sealed interrupting unit
DE2018968A1 (de) * 1969-04-21 1970-11-12 General Electric Co., Schenectady, N.Y. (V.St.A.) Hochspannungsieistungsschalter
DE2717958A1 (de) * 1977-04-20 1978-10-26 Siemens Ag Antriebsvorrichtung fuer elektrische schaltgeraete mit druckkontakten

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025375A (en) * 1960-04-04 1962-03-13 Gen Electric Electric circuit breaker having a sealed interrupting unit
DE2018968A1 (de) * 1969-04-21 1970-11-12 General Electric Co., Schenectady, N.Y. (V.St.A.) Hochspannungsieistungsschalter
DE2717958A1 (de) * 1977-04-20 1978-10-26 Siemens Ag Antriebsvorrichtung fuer elektrische schaltgeraete mit druckkontakten

Also Published As

Publication number Publication date
ATA214491A (de) 1996-07-15

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