EP1149396A1 - Disjoncteur haute tension, en particulier disjoncteur a gaz sous pression - Google Patents

Disjoncteur haute tension, en particulier disjoncteur a gaz sous pression

Info

Publication number
EP1149396A1
EP1149396A1 EP00903551A EP00903551A EP1149396A1 EP 1149396 A1 EP1149396 A1 EP 1149396A1 EP 00903551 A EP00903551 A EP 00903551A EP 00903551 A EP00903551 A EP 00903551A EP 1149396 A1 EP1149396 A1 EP 1149396A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
fork
switching contact
switching
contact
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.)
Granted
Application number
EP00903551A
Other languages
German (de)
English (en)
Other versions
EP1149396B1 (fr
Inventor
Thomas Chyla
Peter Stenzel
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP1149396A1 publication Critical patent/EP1149396A1/fr
Application granted granted Critical
Publication of EP1149396B1 publication Critical patent/EP1149396B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H33/02—Details
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • H01H33/245—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring using movable field electrodes
    • 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
    • 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

  • High-voltage circuit breakers in particular compressed gas circuit breakers
  • the invention relates to a high-voltage circuit breaker, in particular a compressed gas circuit breaker, with two mutually opposing switching contacts, which are surrounded in the switched-on state by an insulating nozzle, to which a shielding electrode is arranged coaxially, the second switching contact, upon actuation of the drivable first switching contact, moving in opposite directions executes and the shielding electrode is controllable due to a coupling by means of a linkage with the second switching contact in the direction of movement of the first switching contact at a speed which is smaller in magnitude than the speed of the first switching contact.
  • Such a high-voltage circuit breaker is known, for example, from DE 196 22 460 C2.
  • the two opposing switching contacts are surrounded by an insulating nozzle when switched on.
  • the insulating material nozzle is connected to the drivable first switch contact.
  • the second switching contact is coupled to the insulating material nozzle by means of a linkage and a deflection lever in such a way that when the first switching contact is actuated, the second switching contact executes a movement opposite to it.
  • the shielding electrode is arranged coaxially with the insulating material nozzle. To extend the opposite movement during a switching operation, the shielding electrode is coupled to the bellcrank.
  • a transmission rod rigidly connected to the insulating material nozzle is used to couple the insulating material nozzle to the bellcrank.
  • Another transmission rod is used to drive the shielding electrode. Due to the use of the bellcrank, these transmission rods are arranged eccentrically and on one side, which causes an asymmetrical loading of the insulating nozzle and the shielding electrode.
  • forces occur that lead to tilting and tilting of the shielding electrode.
  • additional guide devices are necessary.
  • the shielding electrode In order to be able to absorb the forces that occur, the shielding electrode must be designed to be sufficiently mechanically stable. These mechanical requirements force an increase in the moving masses, which is not necessary from the electrical engineering point of view.
  • the present invention has for its object to provide a high-voltage circuit breaker of the type mentioned, the moving parts have a reduced mass to be accelerated.
  • the insulating material nozzle is connected to two tie rods diametrically opposite one another with respect to the central axis of the switch, which extend parallel to the second switching contact and are firmly connected on the side facing away from the insulating material nozzle to an axially displaceably arranged first holder are arranged on the pivotable two connecting rods, each of which is connected in an articulated manner to one leg of a fork which is rotatably guided in a fixed bearing and has a lever on its side which is essentially opposite the legs and with which a pivotable one Coupling lever is connected to the the second switching contact carrying, axially displaceable
  • the angle ⁇ between the legs of the fork and the arm to which the coupling lever is pivotally connected should expediently be greater than 90 °.
  • the contact rod carrying the second switching contact covers a sufficiently large distance in its axial displacement, so that a highly resilient insulating distance is formed between the two mutually opposing switching contacts between them.
  • Contact rod carrying the switching contact takes place via a joint arranged on the contact rod.
  • any known design can be used as a joint, by means of which an axial displacement of the contact rod carrying the second switching contact is achieved when the coupling lever is pivoted.
  • a movement of the shielding electrode which is arranged coaxially to the insulating material nozzle and which is not connected to the insulating material nozzle and controls the electric field in the switching path is achieved in the event of an opposite movement of the second switching contact during a switch-off process, by the
  • a further connecting rod is pivotally attached to the fork, which is pivotally connected to a second holder arranged axially displaceably on the first holder, on which two connecting rods are fixedly arranged and are connected to the shielding electrode.
  • Fixed stock can be reached.
  • this can be arranged at a distance from the outer circumference of a fixed tube guiding the contact rod, on which the first holder is arranged to be axially displaceable.
  • the coupling lever which is pivotably connected to the lever of the fork and is connected to the contact rod, is advantageously introduced into the latter via an elongated hole within the fixed tube.
  • the coupling lever can also be guided into the fixed tube via the open end face thereof. This is particularly expedient if the fixed bearing which rotates the fork is not arranged on the outer circumference of the fixed tube, but rather on the end face thereof.
  • Figure 1 is a partial view of a gas circuit breaker in
  • Section and Figure 2 is a partial view of the gas circuit breaker after
  • FIG. 1 shows a compressed gas circuit breaker in the area of two mutually opposite switching contacts 1, 2 and the contact rod 3 carrying the second switching contact 2. While the compressed gas circuit breaker is shown in the switch-on position to the left of the central axis 4, with the exception of some components in the lower area, the right becomes the central axis 4 the compressed gas circuit breaker is shown in the open position.
  • FIG. 1 shows, the two mutually opposite switching contacts 1, 2 are surrounded in the switched-on state by an insulating nozzle 5, to which a shielding electrode 6 is arranged coaxially. While the insulating material nozzle 5 is connected to the first drivable switching contact 1, ie executes the movement of the first driving contact switch 1 during a switching operation, the shielding electrode 6 is not connected to the insulating material nozzle 5. So that the second switching contact 2 executes a movement opposite to the first drivable switching contact 1 when it is actuated when the switching operation is to be carried out, the insulating nozzle 5 is provided with two tie rods 7 diametrically opposite one another with respect to the central axis 4, 8 connected, which extend parallel to the contact rod 3.
  • tie rods 7, 8 are firmly connected to a holder 9.
  • This is arranged axially displaceably on a fixed tube, in that the contact rod 3 carrying the second switching contact 2 is arranged axially displaceably.
  • two connecting rods 11, 12 are pivotally arranged on the axially displaceable holder 9, each of which is connected in an articulated manner to a leg 13, 14 of a fork 15 which is rotatably guided in a fixed bearing 16 which is on the end face 17 of the contact rod 3 axially displaceably receiving tube 10 is arranged.
  • the fork 15 which is shown on both sides of the central axis 4 in the switched-off position of the compressed gas circuit breaker, has a lever 18 on its side opposite the legs 13, 14, to which a coupling lever 19 is pivotally connected, which is connected to the second switching contact 2 carrying contact rod 3 is connected.
  • the pull rods 7, 8 are carried along when the first drivable switch contact 1 is actuated via the insulating material nozzle 5. Since an axial displacement of the holder 9 on the fixed tube 10 takes place simultaneously with the entrainment of the tie rods 7, 8, the connecting rods 11, 12 which are pivotably arranged on the holder 9 are also taken along. Starting from the fact that each of the connecting rods 11, 12 is connected to a leg 13, 14 of the fork 15 rotatably guided in the fixed bearing 16, the fork 15 is pivoted in the Fixed bearing 16. While the legs 13, 14 of the fork 15 move in the direction of the axially displaceable holder 9, the lever 18 essentially opposite the legs 13, 14 moves in the opposite direction.
  • each connecting rod 21, 22 is articulated on each leg 13, 14 of the fork 15, which pivotally with a second bracket 23 arranged axially displaceably on the first bracket 9th communicates.
  • Two push rods 24, 25 are now fixedly arranged on this, which are connected to the shielding electrode 6 arranged coaxially to the insulating material nozzle 5.
  • the connecting rods 21, 22 and the push rods 24, 25 are moved in the direction of the switching path 20 by the legs 13, 14 of the fork 15. Since the push rods 24, 25 are connected to the shielding electrode 6, this therefore executes a movement whose direction corresponds to that of the first switching contact 1. Because the connecting rods 21, 22, which are articulated to the legs 13, 14 of the fork 15, are fastened to them in the central region of the legs 13, 14, not only the amount of the speed of the shielding is electrode 6 smaller than that of the first switching contact 1, but also the distance covered by the shielding electrode 6.
  • the fixed bearing 16 which rotatably guides the fork 15, is arranged on the end face 17 of the fixed tube 10
  • this fixed bearing 16 is provided according to FIG. It is thereby achieved that, despite the necessity of the fork 15 for the movement sequence of the second switching contact 2 and the shielding electrode 6 (FIG. 1), it is not necessary to enlarge the viewing chambers in the axial direction.
  • the fixed bearing 16 guiding the fork 15 is arranged at a distance from the fixed tube 10 and fastened to its end face 17.
  • the coupling lever 19, which is pivotally connected to the lever 18 of the fork 15 and is connected to the contact rod 3, is introduced into the fixed tube 10 via an elongated hole 20 therein.
  • the angle ⁇ between the lever 18 and the leg 13 and thus the leg 14 ( Figure 1) of the fork 15 is greater than 90 °, so that the contact rod 3 travels a sufficiently large distance to allow the switching contacts 1,

Landscapes

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

Abstract

L'invention concerne un disjoncteur haute tension comportant deux contacts de commutation (1, 2) en vis-à-vis, qui, à l'état "en circuit" sont entourés d'une douille en matière isolante (5), une électrode de blindage (6) étant disposée coaxialement par rapport à cette douille. Un premier contact de commutation (1) pouvant être entraîné est, par l'intermédiaire de la douille en matière isolante (5) et d'une tringlerie, en connexion avec le second contact de commutation (2), de telle sorte que ce dernier, lors de l'actionnement du premier contact de commutation (1), exécute un déplacement en sens contraire, par rapport à celui-ci, et l'électrode de blindage (6) est en liaison active avec le second contact de commutation (2) de telle sorte que, lors d'un processus de mise hors circuit, elle exécute un déplacement qui commande le champ électrique sur le trajet de commutation (20).
EP00903551A 1999-01-15 2000-01-14 Disjoncteur haute tension, en particulier disjoncteur a gaz sous pression Expired - Lifetime EP1149396B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29901205U DE29901205U1 (de) 1999-01-15 1999-01-15 Hochspannungsleistungsschalter, insbesondere Druckgasleistungsschalter
DE29901205U 1999-01-15
PCT/DE2000/000175 WO2000042627A1 (fr) 1999-01-15 2000-01-14 Disjoncteur haute tension, en particulier disjoncteur a gaz sous pression

Publications (2)

Publication Number Publication Date
EP1149396A1 true EP1149396A1 (fr) 2001-10-31
EP1149396B1 EP1149396B1 (fr) 2003-04-23

Family

ID=8068418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00903551A Expired - Lifetime EP1149396B1 (fr) 1999-01-15 2000-01-14 Disjoncteur haute tension, en particulier disjoncteur a gaz sous pression

Country Status (4)

Country Link
US (1) US6410873B1 (fr)
EP (1) EP1149396B1 (fr)
DE (2) DE29901205U1 (fr)
WO (1) WO2000042627A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19928080C5 (de) * 1999-06-11 2006-11-16 Siemens Ag Hochspannungsleistungsschalter mit einem Abströmkanal
DE19948687C1 (de) * 1999-09-30 2001-02-15 Siemens Ag Hochspannungsleistungsschalter
EP1930930B1 (fr) * 2006-12-06 2013-08-28 ABB Technology AG Transmission pour un disjoncteur à haute tension
FR2953639B1 (fr) 2009-12-09 2012-01-13 Areva T & D Sas Disjoncteur a haute tension a ecran amovible pour l'amelioration du gradient de champ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659065A (en) * 1970-03-06 1972-04-25 Westinghouse Electric Corp Fluid-blast circuit interrupter with delayed moving contact travel
DE2831134C2 (de) 1978-07-13 1980-08-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Metallgekapseltes, druckgasisoliertes Hochspannungsschaltgerät
DE4427163A1 (de) 1994-08-01 1996-02-08 Abb Management Ag Druckgasschalter
DE19622460C2 (de) 1996-05-24 1998-04-02 Siemens Ag Hochspannungs-Leistungsschalter mit zwei antreibbaren Schaltkontaktstücken
DE19702822C1 (de) 1997-01-17 1998-03-26 Siemens Ag Hochspannungs-Leistungsschalter mit einer Feldelektrode
DE19727850C1 (de) * 1997-06-26 1998-09-17 Siemens Ag Hochspannungs-Leistungsschalter mit zwei entgegengesetzt antreibbaren Lichtbogenkontaktstücken
DE59802323D1 (de) 1997-01-17 2002-01-17 Siemens Ag Hochspannungs-leistungsschalter mit einer axial verschiebbaren feldelektrode

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0042627A1 *

Also Published As

Publication number Publication date
US6410873B1 (en) 2002-06-25
DE50001862D1 (de) 2003-05-28
DE29901205U1 (de) 1999-05-12
WO2000042627A1 (fr) 2000-07-20
EP1149396B1 (fr) 2003-04-23

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