EP0896350B1 - Disjoncteur de puissance pour haute tension avec deux contacts d'arc mobiles en directions opposées - Google Patents

Disjoncteur de puissance pour haute tension avec deux contacts d'arc mobiles en directions opposées Download PDF

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Publication number
EP0896350B1
EP0896350B1 EP19980250239 EP98250239A EP0896350B1 EP 0896350 B1 EP0896350 B1 EP 0896350B1 EP 19980250239 EP19980250239 EP 19980250239 EP 98250239 A EP98250239 A EP 98250239A EP 0896350 B1 EP0896350 B1 EP 0896350B1
Authority
EP
European Patent Office
Prior art keywords
contact piece
arcing contact
drive
circuit breaker
arcing
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 - Lifetime
Application number
EP19980250239
Other languages
German (de)
English (en)
Other versions
EP0896350A3 (fr
EP0896350A2 (fr
Inventor
Volker Lehmann
Heiner Marin
Ekkehard Dr. Anke
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 EP0896350A2 publication Critical patent/EP0896350A2/fr
Publication of EP0896350A3 publication Critical patent/EP0896350A3/fr
Application granted granted Critical
Publication of EP0896350B1 publication Critical patent/EP0896350B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/904—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism characterised by the transmission between operating mechanism and piston or movable contact
    • 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
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions
    • 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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle

Definitions

  • the invention is in the field of high-voltage circuit breakers and is to be applied in the structural design of the drive mechanism with which the auxiliary contacts used for arc quenching are driven in opposite directions.
  • circuit breakers of this type the two, often referred to as arcing contact, coaxially opposed auxiliary contacts are coaxially surrounded by the two Treasurestrom prominence scholaren, one of which is arranged fixed and the other is designed to be axially driven.
  • Such circuit breakers usually work with a gaseous extinguishing agent which flows through the separation region of the contact pieces in the case of switching and whose flow can be influenced by special pressure chambers and nozzles. This is u.a. an insulating nozzle, which is disposed within the Treasurestrom prominence Symposiume and surrounding the arcing contact pieces and which is firmly connected to both the permanent-current driving contact piece and with the driven arcing contact piece.
  • circuit breaker of this kind can be used as a reversing gear and a crank whose rotating part is formed by the gear which is driven by the connected to the insulating nozzle rack (EP 0 696 040 A1).
  • the linear movement of the toothed rack is transmitted sinusoidally to the second arcing contact.
  • the known deflection gears provide either a rigid coupling of the second oppositely driven arcing contact piece to the complete stroke movement of the first driven arcing contact piece or only a temporary coupling by means of an inaccurately working locking mechanism.
  • the invention is therefore the object of the deflection so to design that it is a permanent positive engagement between driving first arcing contact and oppositely driven second arcing contact a drive of the second arcing contact piece on only part of the Switching stroke of the driving first contact piece allows and during this drive phase, the opposite driven second arcing contact at a predeterminable place to undergo a pronounced maximum aggravation.
  • the gear wheel forms the drive of a linear switching mechanism that is designed in the manner of an externally driven, single-stage Maltese cross gear; It is also essential that the switch of this switching mechanism is arranged in a housing with which the second arcing contact piece is firmly connected and at the same time forms the movable part of the sliding contact.
  • the design of the rear derailleur is expedient in such a way that the gear is provided with a drive pin and a centrally arranged, semi-cylindrical approach, and that the switching part of the switching mechanism consists of an elongated board, at one longitudinal edge of a perpendicular to the longitudinal edge extending slot are provided for engagement with the drive pin and on both sides of the slot each having a circular recess for engagement with the semi-cylindrical projection of the gear.
  • the switch forms a rotatable disc about an axis, performs in a trained according to the invention, the switch switch from a linear movement.
  • the invention makes use of the advantages of a Geneva shift, namely a drive of the switch on only a part of the stroke or the rotational movement of the driving wheel and a secure locking of the switch positions.
  • FIG. 1 shows, on the basis of FIG. 2 of EP 0 313 813 B1, a detail of the stationary current contact 5 of a high-voltage circuit breaker, into which one end of an insulating nozzle 8 projects from the left, this insulating nozzle surrounding the second arc contact piece 7 driven in the opposite direction.
  • a rack 27 is fixed, in which a stationary arranged gear 25 engages.
  • a housing 20 is arranged in the illustrated embodiment at the end of the oppositely driven second arcing contact piece 7, which is connected via two sliding contacts 14 and 15 and associated bus bars 16 and 17 with the Treasurestromnem scholar 5, wherein the sliding contacts at the same time the sliding bearing for form the arcing contact piece 7.
  • the housing 20 is arranged between a holding plate 31 and a cover plate 30, which are both connected to the busbars 16 and 17.
  • the holding plate takes on the bearing 29 for the gear 25.
  • the housing 20 forms in the lower part of a cheek 21 for guiding the rack 27.
  • the gear 25 has a drive pin 26 which is arranged in the outer region of the gear radially opposite to a semi-cylindrical projection 28.
  • Semi-cylindrical projection 28 and drive pin 26 engage in response to the rotational movement of the gear 25 in engagement with an elongated board 22 which is recessed into the housing 20.
  • the one longitudinal edge of the board 22 extends parallel to the axis of the arcing contact piece 7 and perpendicular to the axis of the gear 25.
  • the elongated board 22 is provided in the region of this longitudinal edge with a slot 23 extending perpendicular thereto, in which the drive pin 26 of the gear 25 can engage.
  • On both sides of the slot 23 each have a semicircular recess 24 is provided for engagement with the semi-cylindrical projection 28.
  • the arc contact piece 7 is fixedly connected to the housing 20 via one eye.
  • Figure 1 shows the reversing gear in a position corresponding to the closed position of the continuous current contacts of the high-voltage circuit breaker.
  • the rack 27 is moved to the left, whereby the gear 25 performs a rotational movement.
  • the board 22 and thus the housing 20 and the arcing contact piece 7 remain so long in the rest position, as the semi-cylindrical projection 28 is in engagement with the semicircular recess 24.
  • the drive pin 26 engages the slot 23
  • the board 10 is first moved slowly and then with increasing speed and after passing through a maximum with decreasing speed to the right until the drive pin 26 leaves the slot 23.
  • the maximum drive speed of the arcing contact piece 7 and the phase of the axial displacement of the arcing contact piece 7 with respect to the turn-off as a whole can be varied within certain limits and thus optimized.
  • the new deflection gear is a self-contained assembly, which is flat and therefore does not interfere with the adjusting gas flow in the fixed permanent current contact 5 adjusting itself.
  • the reversing gear is characterized by few parts and a relatively small mass, which favors low energy consumption.

Landscapes

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

Claims (2)

  1. Disjoncteur de haute tension comprenant une première pièce (5) de contact en courant permanent pouvant être entraînée axialement et une deuxième pièce de contact en courant permanent fixe et une première et une deuxième pièce (7), de contact d'arc entourées co-axialement des pièces de contact permanent et se faisant face co-axialement l'une à l'autre, ainsi qu'une buse (8), en matière isolante qui est solidaire tant de la première pièce de contact en courant permanent pouvant être entraînée que de la première pièce de contact d'arc électrique,
       dans lequel pour entraîner les deux pièces de contact d'arc électrique dans des sens opposés le mouvement d'entraînement de la pièce de contact de courant permanent pouvant être entraîné peut être transmis par un élément d'entraînement fixé à la buse (8) en matière isolante au moyen d'un mécanisme de renvoi, à la deuxième pièce (7) de contact d'arc, guidée dans un contact (14,15) glissant, l'élément d'entraînement étant constitué en crémaillère (27) et engrenant dans un pignon (25) entraînant la deuxième pièce (7) de contact d'arc,
       caractérisé,
       en ce que le pignon (25) forme la roue d'entraînement d'un mécanisme (26,22,23,24,28) de commutation linéaire entraîné de l'extérieur et conformé en mécanisme à croix de Malte à un seul pas, dont l'interrupteur (22) est disposé dans un boîtier (20) dont la deuxième pièce (7) de contact d'arc est solidaire et qui forme la partie mobile du contact (14,15) glissant.
  2. Disjoncteur de haute tension suivant la revendication 1,
       caractérisé,
       en ce que le pignon (25) est muni d'un tourillon (26) d'entraînement et d'un talon (28) hémicylindrique disposé de manière centrée et en ce que l'interrupteur du mécanisme de commutation est constitué d'une platine (22) oblongue sur l'un des grands côtés de laquelle est prévue une fente (23) s'étendant perpendiculairement au grand côté pour la pénétration du tourillon (26) d'entraînement et il est prévu des deux côtés de la fente respectivement un évidement (24) hémicirculaire pour la pénétration du talon (28) hémicylindrique.
EP19980250239 1997-06-26 1998-06-26 Disjoncteur de puissance pour haute tension avec deux contacts d'arc mobiles en directions opposées Expired - Lifetime EP0896350B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29711407U DE29711407U1 (de) 1997-06-26 1997-06-26 Hochspannungs-Leistungsschalter mit zwei entgegengesetzt antreibbaren Lichtbogenkontaktstücken
DE29711407U 1997-06-26

Publications (3)

Publication Number Publication Date
EP0896350A2 EP0896350A2 (fr) 1999-02-10
EP0896350A3 EP0896350A3 (fr) 1999-03-17
EP0896350B1 true EP0896350B1 (fr) 2005-09-21

Family

ID=8042376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980250239 Expired - Lifetime EP0896350B1 (fr) 1997-06-26 1998-06-26 Disjoncteur de puissance pour haute tension avec deux contacts d'arc mobiles en directions opposées

Country Status (2)

Country Link
EP (1) EP0896350B1 (fr)
DE (2) DE29711407U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015214485A1 (de) * 2015-07-30 2017-02-16 Siemens Aktiengesellschaft Anordnung und ein Verfahren zum Antreiben einer elektrischen Schalteinrichtung
CN115662849B (zh) * 2022-10-31 2023-12-01 正泰电气股份有限公司 触头结构及具有其的断路器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH664233A5 (de) * 1984-06-07 1988-02-15 Sprecher Energie Ag Antriebsvorrichtung fuer ein elektrisches schaltgeraet, insbesondere fuer einen trennschalter.
CH675175A5 (fr) * 1987-10-27 1990-08-31 Bbc Brown Boveri & Cie
DE4427163A1 (de) * 1994-08-01 1996-02-08 Abb Management Ag Druckgasschalter

Also Published As

Publication number Publication date
EP0896350A3 (fr) 1999-03-17
DE59813066D1 (de) 2006-02-02
EP0896350A2 (fr) 1999-02-10
DE29711407U1 (de) 1997-09-04

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