EP0809268A2 - Disjoncteur haute tension dÔté d'une tuyère en matière isolante - Google Patents

Disjoncteur haute tension dÔté d'une tuyère en matière isolante Download PDF

Info

Publication number
EP0809268A2
EP0809268A2 EP97250162A EP97250162A EP0809268A2 EP 0809268 A2 EP0809268 A2 EP 0809268A2 EP 97250162 A EP97250162 A EP 97250162A EP 97250162 A EP97250162 A EP 97250162A EP 0809268 A2 EP0809268 A2 EP 0809268A2
Authority
EP
European Patent Office
Prior art keywords
clamping ring
nozzle
insulating material
circuit breaker
voltage circuit
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
EP97250162A
Other languages
German (de)
English (en)
Other versions
EP0809268A3 (fr
EP0809268B1 (fr
Inventor
Ingolf Reiher
Heiner Marin
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 EP0809268A2 publication Critical patent/EP0809268A2/fr
Publication of EP0809268A3 publication Critical patent/EP0809268A3/fr
Application granted granted Critical
Publication of EP0809268B1 publication Critical patent/EP0809268B1/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
    • H01H33/7015—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
    • 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
    • H01H33/02—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
    • H01H33/70—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
    • H01H33/901—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 making use of the energy of the arc or an auxiliary arc

Definitions

  • the invention relates to a high-voltage circuit breaker with a first and a second arcing contact piece, which are located coaxially opposite one another, at least the first of which can be driven by a switch drive in the course of a switching movement and which are separated by a separating path in the switched-off state and with a hollow cylindrical insulating material nozzle.
  • which is connected to the first arcing contact piece and serves to blow an arc, possibly burning between the arcing contact pieces, with an extinguishing gas, and to which a component which is arranged on the side of the isolating path opposite the switch drive and which is to be driven in the switching case is coupled.
  • a high-voltage circuit breaker is known with two coaxially opposing arcing contact pieces and with an insulating nozzle which is connected to a drivable arcing contact piece.
  • the other arcing contact piece is driven by means of a deflecting gear by a drive element which in turn is connected to the switch drive and bridges the separating distance between the arcing contact pieces.
  • the second drivable arcing contact piece can also be coupled to the switch drive by means of the insulating material nozzle. For this purpose, it is necessary to attach a transmission element to the insulating material nozzle itself.
  • the insulating material nozzle consists of a plastic with limited strength and is exposed to the corrosive effects of the arc or hot extinguishing gases.
  • the forces to be transmitted are very high when switching Large, so that the coupling must be mechanically stable.
  • the present invention is therefore based on the object of providing a high-voltage circuit breaker of the type mentioned at the outset, which allows stable connection of a component to be driven to the insulating material nozzle.
  • the insulating nozzle on its first end facing away from the drive side has a bead arranged on a lateral surface, behind which a first clamping ring pushed on from the first end of the insulating nozzle with temporary radial elastic deformation of the first clamping ring and / or the Is snapped end of the nozzle and that a second clamping ring is provided which supports the first clamping ring and / or the nozzle end to prevent unlocking of the first clamping ring and that the component to be driven can be coupled to at least one of the clamping rings.
  • the nozzle end itself is protected against deformation on the one hand, and on the other hand the coupling of a component to be driven to the insulating nozzle is made possible without the need to drill holes in the nozzle which could possibly impair the stability of the nozzle body. Since all components have to be pushed on from the first end of the insulating nozzle, because the other end of the insulating nozzle has a larger diameter, elastic deformability must be provided, which allows the first clamping ring to be pushed behind the bulge of the insulating nozzle. After this clamping ring has been pushed on, the second clamping ring is put on and, if necessary, connected to the first clamping ring by means of screws or another type of fastening.
  • the first clamping ring is pushed onto the outside of the nozzle.
  • the first clamping ring is either widened and / or the first end of the nozzle is compressed radially. This is made possible by radial slots at the end of the nozzle.
  • the second clamping ring is put on, which in this case has to prevent the radial compression of the nozzle end or the expansion of the first clamping ring.
  • the second clamping ring has a nozzle which is either inserted into the interior of the nozzle end or is inserted into a groove running around the end face of the nozzle body. The second clamping ring prevents the first clamping ring from being pushed over the bead and thus being able to be unlocked.
  • the first clamping ring can be fastened by expanding the nozzle at its end or by compressing the first clamping ring.
  • the second clamping ring is either also inserted into a circumferential groove made on the end face of the insulating material nozzle or is placed on the outside of the nozzle body.
  • the second clamping ring allows, in particular, the coupling of a transmission element, in particular an insulating rod, which can transmit a drive movement over the separation path over to the second arcing contact piece.
  • a deflecting gear in the form of a lever can be provided behind the second arcing contact piece, which lever can be actuated by the insulating rod, so that the second arcing contact piece is moved away from the first arcing contact piece when it is switched off.
  • FIG. 1 shows a first arcing contact piece 1 in a half section and a second arcing contact piece 2, the first arcing contact piece 1 being designed as a tulip contact and the second arcing contact piece 2 as a contact pin.
  • the first arcing contact 1 is connected to a switch drive, not shown, which moves the first arcing contact 1 in the direction of arrow 13 during the switch-off process.
  • the first arcing contact 1 is connected to a metallic hollow cylinder 14 which carries an insulating nozzle 3.
  • Another insulating material nozzle body 15 is placed directly on the first arcing contact piece 1. When switching, the insulating material nozzle 3 moves together with the first arcing contact piece 1.
  • first and the second arcing contact pieces 1, 2 are separated from one another, then in the isolating path 4 an arc is drawn between them, which expands the extinguishing gas located there, for example SF 6 .
  • the hot quenching gas can flow out into a heating chamber 16, from which it flows back at a suitable time, for example directly after a current zero crossing of the current to be switched, in order to blow the arc.
  • the continuous current is carried by the continuous current contact pieces 17, 18.
  • the insulating material nozzle 3 bridges the isolating section 4 both in the switched-on state and in the switched-off state.
  • the body of the insulating material nozzle is surrounded by a field electrode 5, which is pressed towards the isolating section by means of a spring 19, in order to ensure a dielectric favorable design of the electrical field between the contacts in the switched-on state.
  • the spring 19 is supported on the first clamping ring 8, which is attached to the first end 6 of the insulating nozzle 3.
  • the spring 19 could also be supported on an outer bead of the insulating nozzle itself.
  • the field electrode 5 is pushed back so far by the continuous current contact piece 17 that this continuous current contact piece can come into contact with the other continuous current contact piece 18.
  • the field electrode 5 is guided and contacted in the continuous current contact piece 17 by means of a sliding contact.
  • a drive rod 20 is also coupled to the first end 6 of the insulating material nozzle 3 and actuates a deflection gear in the form of a two-armed lever 21, to the other arm of which the second arcing contact piece 2 is coupled.
  • first clamping ring 8 which can be pushed over the bead 7 from the first end 6 of the insulating nozzle 3 and engages behind the bead 7. This is achieved either by an elastic design of the nozzle, for example by radial slots at the end of the nozzle, or by slitting the first clamping ring 8.
  • a second clamping ring 10 is fastened to the first clamping ring 8, which stabilizes both the nozzle body 3 and the first clamping ring 8 in such a way that no elastic deformation and therefore no Sliding over the first clamping ring 8 over the bead 7 is more possible.
  • a drive rod 20 can then be coupled to the second clamping ring 10 or the first clamping ring 8 in a mechanically highly loadable manner.
  • the second clamping ring 10 has a connecting piece 11 which engages in the groove 12 on the end face of the nozzle body 3 and prevents radial deformation of the nozzle body both towards the inside and towards the outside.

Landscapes

  • Circuit Breakers (AREA)
EP97250162A 1996-05-24 1997-05-23 Disjoncteur haute tension dôté d'une tuyère en matière isolante Expired - Lifetime EP0809268B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29609909U DE29609909U1 (de) 1996-05-24 1996-05-24 Hochspannungs-Leistungsschalter mit einer Isolierstoffdüse
DE29609909U 1996-05-24

Publications (3)

Publication Number Publication Date
EP0809268A2 true EP0809268A2 (fr) 1997-11-26
EP0809268A3 EP0809268A3 (fr) 1998-12-02
EP0809268B1 EP0809268B1 (fr) 2004-08-18

Family

ID=8024802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97250162A Expired - Lifetime EP0809268B1 (fr) 1996-05-24 1997-05-23 Disjoncteur haute tension dôté d'une tuyère en matière isolante

Country Status (2)

Country Link
EP (1) EP0809268B1 (fr)
DE (2) DE29609909U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001024211A1 (fr) * 1999-09-30 2001-04-05 Siemens Aktiengesellschaft Disjoncteur haute tension
EP2325859A1 (fr) 2009-11-24 2011-05-25 ABB Technology AG Commutateur à haute tension isolé du gaz
WO2016151002A1 (fr) * 2015-03-25 2016-09-29 Siemens Aktiengesellschaft Buse isolante et dispositif de commutation électrique pourvu dune buse isolante
CN109192597A (zh) * 2018-10-11 2019-01-11 西安西电开关电气有限公司 断路器及其双动传动装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29609909U1 (de) * 1996-05-24 1996-08-22 Siemens AG, 80333 München Hochspannungs-Leistungsschalter mit einer Isolierstoffdüse
DE19631323C1 (de) * 1996-08-01 1997-10-16 Aeg Energietechnik Gmbh Druckgasschalter
EP1686602B2 (fr) * 2005-02-01 2021-04-07 ABB Power Grids Switzerland AG Dispositif de montage d'un buse pour un disjoncteur électrique
DE102019214432B4 (de) * 2019-09-23 2024-02-08 Siemens Energy Global GmbH & Co. KG Baugruppe für einen Hochspannungs-Leistungsschalter und entsprechender Hochspannungs-Leistungsschalter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491675A1 (fr) * 1980-10-07 1982-04-09 Alsthom Atlantique Dispositif de coupure a double mouvement des contacts
CH675175A5 (fr) * 1987-10-27 1990-08-31 Bbc Brown Boveri & Cie
DE29609909U1 (de) * 1996-05-24 1996-08-22 Siemens AG, 80333 München Hochspannungs-Leistungsschalter mit einer Isolierstoffdüse

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001024211A1 (fr) * 1999-09-30 2001-04-05 Siemens Aktiengesellschaft Disjoncteur haute tension
EP2325859A1 (fr) 2009-11-24 2011-05-25 ABB Technology AG Commutateur à haute tension isolé du gaz
CN102074406A (zh) * 2009-11-24 2011-05-25 Abb技术有限公司 气体绝缘高压开关
US8263892B2 (en) 2009-11-24 2012-09-11 Abb Technology Ag Gas-insulated high-voltage switch
CN102074406B (zh) * 2009-11-24 2015-06-17 Abb技术有限公司 气体绝缘高压开关
WO2016151002A1 (fr) * 2015-03-25 2016-09-29 Siemens Aktiengesellschaft Buse isolante et dispositif de commutation électrique pourvu dune buse isolante
CN109192597A (zh) * 2018-10-11 2019-01-11 西安西电开关电气有限公司 断路器及其双动传动装置

Also Published As

Publication number Publication date
DE59711853D1 (de) 2004-09-23
DE29609909U1 (de) 1996-08-22
EP0809268A3 (fr) 1998-12-02
EP0809268B1 (fr) 2004-08-18

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