EP1218906A1 - Disjoncteur haute tension - Google Patents

Disjoncteur haute tension

Info

Publication number
EP1218906A1
EP1218906A1 EP00982936A EP00982936A EP1218906A1 EP 1218906 A1 EP1218906 A1 EP 1218906A1 EP 00982936 A EP00982936 A EP 00982936A EP 00982936 A EP00982936 A EP 00982936A EP 1218906 A1 EP1218906 A1 EP 1218906A1
Authority
EP
European Patent Office
Prior art keywords
arcing contact
contact piece
region
nozzle arrangement
circuit breaker
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
EP00982936A
Other languages
German (de)
English (en)
Other versions
EP1218906B1 (fr
Inventor
Heiner Marin
Volker Lehmann
Ralf Bergmann
Hold Dienemann
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7925066&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1218906(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1218906A1 publication Critical patent/EP1218906A1/fr
Application granted granted Critical
Publication of EP1218906B1 publication Critical patent/EP1218906B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • H01H33/70—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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow

Definitions

  • the invention relates to a high-voltage circuit breaker with a first arcing contact piece and a second arcing contact piece, which face each other, of which at least the first arcing contact piece can be driven, and with an insulating nozzle arrangement which is connected to the first drivable arcing contact piece and has an axial outflow channel for guiding a quenching gas, and with a boiler room in which quenching gas heated by an arc between the two arcing contact pieces can be stored and which is connected to the outflow duct of the insulating nozzle arrangement by means of an annular duct, the outflow duct being blocked by the second arcing contact piece in the switched-on state, the outflow duct of the insulating nozzle arrangement having a first, the free end of the first arcing contact piece facing substantially cylindrical region and adjacent one, in diameter compared to the e rsten area has expanded second area.
  • Such a high-voltage circuit breaker is known, for example, from WO 99/44213.
  • an arc is drawn between the arcing contact pieces in the arcing space surrounded by the insulating nozzle arrangement during the switching-off process and the quenching gas SF6 located there is heated by the arcing.
  • the heated and thereby expanded quenching gas is diverted through a heating duct into a boiler room, where it is available for subsequent blowing of the arc. If the current to be switched passes zero, the arc extinguishes and the quenching gas pressure in the arc chamber drops, so that at this point the high-pressure quenching gas flows from the heating chamber via the ring channel to the arc chamber between the arcing contact pieces and can successfully prevent the arc from reigniting there ,
  • the attenuation of the opening of the insulating nozzle arrangement by the second arcing contact piece means that the quenching gas heated by the arc cannot initially flow out through the outflow opening, but rather flows as completely as possible to the boiler room.
  • the essential portion of the energy required for blowing the arc is provided by the arc itself, ie by the arc gas generated by the arc.
  • a large arc room has so far been viewed as cheap for blowing the arc.
  • the diameter of the second arcing contact piece was dimensioned large, in particular for higher voltages, in order to be able to carry out peaks and edges there with a large radius of curvature, so that dielectric problems could be avoided at this point.
  • the present invention is therefore based on the object of improving the switching capacity in the case of a high-voltage circuit breaker of the type mentioned at the outset, in particular at high currents, such as occur, for example, in the event of a terminal short circuit.
  • the object is achieved in that the distance between the first arcing contact piece and the second area minus the width, which the ring channel has at its confluence with the outflow channel of the insulating nozzle arrangement, is greater than twice the diameter of the outflow channel in its first area, whereby the diameter of the outflow channel in the first region is less than 30 mm, in particular less than 25 mm.
  • An advantageous embodiment of the invention provides that the second arcing contact piece is assigned a field electrode for shielding the electrical field, which can be driven at a speed different from the speed of the insulating nozzle arrangement.
  • the second arcing contact piece is additionally dielectrically shielded and, in particular, because the field electrode can be driven at a different speed than the insulating nozzle arrangement, an optimum dielectric configuration is made possible at all times during the switching process.
  • the speed profile of the field electrode can be optimally matched to the movement of the insulating nozzle arrangement.
  • the field electrode can be moved either by means of its own drive, for example by means of an electrodynamic drive, or by means of a gear through the switch drive.
  • a further advantageous embodiment provides that the second arcing contact piece is designed as a cylindrical pin, which is rounded at its end facing the first arcing contact piece.
  • the arcing contact piece is designed as a cylindrical pin which, at its end facing the first arcing contact piece, has a first section with a reduced diameter compared to the other sections.
  • a further advantageous embodiment of the invention provides that the second arcing contact piece can be driven by means of a transmission element coupled to the insulating nozzle arrangement and a gear connected to it.
  • the second arcing contact piece can be driven by means of the switch drive via the transmission element and a transmission, and the speed profile of the second arcing contact piece can also be determined via the design of the transmission.
  • the arc time during which the first region of the outflow opening is still blocked by the second arcing contact piece can also be determined by means of the movement profile of the second arcing contact piece.
  • Field electrode is drivable.
  • the gear unit can be designed in such a way that the field electrode can be driven together with the second arcing contact piece or with a movement profile other than this.
  • an optimal dielectric arrangement can be generated at any time during the switching process.
  • the invention can also be advantageously configured in that the insulating nozzle arrangement consists of PTFE.
  • the insulating nozzle arrangement is made of PTFE (polytetrafluoroethylene)
  • PTFE polytetrafluoroethylene
  • the insulating nozzle arrangement consists of a main nozzle and an auxiliary nozzle directly surrounding the first arcing contact piece, the annular channel being formed between the main nozzle and the auxiliary nozzle.
  • the invention also relates to a high-voltage circuit breaker with a first arcing contact piece and a second arcing contact piece, which face each other, at least the first arcing contact piece being drivable, and with an insulating nozzle arrangement which is connected to the drivable first arcing contact piece and which has an axial outflow channel for guiding a quenching gas.
  • Extinguishing gas heated between the arcing contact pieces can be stored and is connected to the outflow duct of the insulating nozzle arrangement by means of at least one duct, the outflow duct of the insulating nozzle arrangement having a first, essentially cylindrical region, at its end opposite the first arcing contact piece with respect to the diameter the second region is expanded by the second region, the first region being blocked by the second arcing contact piece in the switched-on state, the length of the first region being greater than twice the diameter of the first region and the diameter of the first region being less than 30 mm, in particular is less than 25 mm.
  • Such an embodiment of the invention can provide, for example, that the channel which connects the heating chamber and the outflow channel of the insulating nozzle arrangement is designed in the form of a plurality of partial channels which open out on the circumferential surface of the outflow opening and over its circumference.
  • the length of the first cylindrical region of the outflow opening of the insulating nozzle arrangement is equal to the distance between the first arcing contact piece and the first region of the outflow opening, since in this case it is not necessary to deduct the width of an annular duct opening into the outflow duct.
  • FIG. 1 shows the interrupter unit of a high-voltage circuit breaker, partly schematically in section, with a second arcing contact piece tapered in its front area
  • FIG. 2 shows an arrangement with a non-tapered second one
  • Arcing contact piece which is drivable and with a drivable field electrode
  • FIG. 3 shows the arrangement from FIG. 1 with an outflow channel which is connected to the boiler room by means of a plurality of channels distributed over its circumference.
  • two arcing contact pieces 1, 2 coaxially face each other in an insulating circuit breaker housing 18, which is made, for example, of porcelain or a composite material.
  • the first arcing contact piece 1 can be driven by means of a switch drive (not shown), which can be designed, for example, as a hydraulic drive or as a spring-loaded drive, or also as an electrodynamic drive, while the second arcing contact piece 2, which has the shape of a contact pin, is designed to be stationary.
  • a main nozzle 3a is firmly connected as part of an insulating nozzle arrangement 3, which consists of polytetraflurethylene.
  • the insulating nozzle arrangement 3 has an outflow channel 6, which in the switched-on state when the two arcing contact pieces 1, 2 are in contact with one another stand handle, is penetrated by the second arcing contact piece 2 and blocked.
  • the insulating nozzle arrangement in the region of the main nozzle 3a has a first, essentially cylindrical region 6a, which extends from the end face of the first arcing contact piece 1 through the first nozzle 3b to the beginning of a second region 6b, which has an enlarged diameter compared to the first region 6a extends.
  • the outflow channel has an insignificantly larger diameter than the second arcing contact piece 2 in its second section.
  • the end of the second arcing contact piece can have a first section 7 with a reduced diameter compared to the second section 8.
  • This first section 7 of the second arcing contact piece 2 serves, on the one hand, to partially dam the outflow channel 6 at the end of the switch-off movement, after which the complete dam is given up by the second section 8, and thus an extinguishing gas flow through the outflow channel 6 in several steps on the other hand, to create a design that is as dielectric as possible at the end of the second arcing contact piece 2 that faces the first arcing contact piece 1.
  • a first continuous current contact piece 12 and a second continuous current contact piece 13 are arranged radially outside of the insulating nozzle arrangement 3 and surrounding it, which are also in contact with one another in the switched-on state and carry the nominal current.
  • a heating chamber 16 is formed, which is connected via an annular channel 15 to the outflow channel 6 of the nozzle or between the Arc contact pieces 1, 2 formed arc space is connected.
  • An arcing 4 can occur between the arcing contact pieces 1, 2 during the stopping movement, which in the
  • the quenching gas can then flow out through the annular duct 15 into the heating chamber 16 and is temporarily stored there until the arc 4 extinguishes due to a current zero crossing of the current to be switched and the quenching gas flows out of the heating chamber 16 through the annular duct 15 into the arc chamber 5, in order to be there bring about rapid cooling and thus prevent the back ignition of an arc 4.
  • the outflow channel 6 is still blocked by the second arcing contact 2.
  • the diameter of the first region 6a of the outflow channel 6 corresponds essentially to the outer diameter of the second region 8 of the second arcing contact piece 2.
  • the length of the first area 6a of the outflow channel 6, measured from the end face of the first arcing contact piece 1 to the beginning of the enlarged area 6b of the outflow channel 6 of the insulating nozzle arrangement 3, corresponds to at least twice the diameter of the first area 6a of the outflow opening 6.
  • the outflow opening 6 is blocked for a sufficiently long time by the second section 8 of the second arcing contact piece 2 in order to adequately heat extinguishing gas by the arc 4 before the outflow opening is opened. Opening 6 and thus allow sufficient storage of extinguishing gas in the boiler room 16.
  • Ring channel 15 measured in the axial direction of the outflow channel 6, the less PTFE surface is available for the action of the arc 4. This width of the arc is therefore taken into account when dimensioning the length of the first region 6a of the outflow opening 6.
  • a second phase of the switch-off movement begins with the separation of the second section 8 of the second arcing contact piece 2 from the first region 6a of the outflow duct 6.
  • the first section 7 with a reduced diameter of the second arcing contact piece 2 is still located in the first region 6a of the outflow channel 6, so that the outflow opening is only partially blocked and an extinguishing gas flow through the outflow channel 6 is started.
  • the diameter of the first section 6a of the outflow channel 6 is chosen to be less than 30 mm, a particularly strong pressure increase in the arc space or in the outflow channel 6 is achieved, which has a positive effect on the switching capacity at high currents.
  • the dimensioning of the diameter ⁇ 25 mm has proven to be particularly advantageous.
  • FIG. 2 Another embodiment of the invention is shown in FIG. 2, the main focus being that the second arcing contact piece 2a does not have several sections with different diameters, but is only rounded at its end facing the first arcing contact piece 1, and that second arcing contact piece 2a can be driven separately by means of a gear 22, the gear 22 being driven by means of a transmission element 21 in the form of a rod fastened to the insulating nozzle arrangement 3.
  • a field electrode 20 is provided which surrounds the second arcing contact piece 2a and shields it dielectrically and which can also be driven by means of the gear 22.
  • the gear mechanism 22 has various levers 23, 24, which allow different movement profiles for the electrode 20 and the second arcing contact piece 2a. Because of the more precise description of the transmission 22, reference is made to the German utility model 299 01 205.0.
  • FIG. 3 shows an embodiment which essentially corresponds to that shown in FIG. 1, but with the second arcing contact piece 2a without an Most, reduced diameter section 7, but is only formed with an end rounding.
  • the channels or an annular channel run between the insulating nozzle arrangement and the first arcing contact piece.

Landscapes

  • Circuit Breakers (AREA)

Abstract

L'invention concerne un disjoncteur haute tension comportant deux pièces de contact d'arc (1, 2, 2a), au moins une de ces pièces pouvant être actionnée. Au moyen de la pièce de contact d'arc actionnable, un dispositif de buses d'isolation (3) présentant un canal d'écoulement (6) est mis en mouvement, ce canal d'écoulement étant fermé à l'état de fonctionnement par la deuxième pièce de contact d'arc (2, 2a). La longueur et le diamètre du canal d'écoulement (6), ainsi qu'éventuellement le mouvement de la deuxième pièce de contact d'arc (2, 2a) sont coordonnés de manière que le souffle automatique soit optimisé pour l'extinction de l'arc.
EP00982936A 1999-09-30 2000-09-26 Disjoncteur haute tension Revoked EP1218906B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19948687A DE19948687C1 (de) 1999-09-30 1999-09-30 Hochspannungsleistungsschalter
DE19948687 1999-09-30
PCT/DE2000/003431 WO2001024211A1 (fr) 1999-09-30 2000-09-26 Disjoncteur haute tension

Publications (2)

Publication Number Publication Date
EP1218906A1 true EP1218906A1 (fr) 2002-07-03
EP1218906B1 EP1218906B1 (fr) 2003-04-23

Family

ID=7925066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00982936A Revoked EP1218906B1 (fr) 1999-09-30 2000-09-26 Disjoncteur haute tension

Country Status (4)

Country Link
EP (1) EP1218906B1 (fr)
AU (1) AU1991701A (fr)
DE (2) DE19948687C1 (fr)
WO (1) WO2001024211A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110402475B (zh) * 2017-03-02 2021-10-15 Abb电网瑞士股份公司 具有改进鲁棒性的高压电路断路器

Family Cites Families (3)

* 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
DE19809088C1 (de) * 1998-02-25 1999-09-30 Siemens Ag Hochspannungsleistungsschalter mit einer Isolierstoffdüse
DE29901205U1 (de) * 1999-01-15 1999-05-12 Siemens AG, 80333 München Hochspannungsleistungsschalter, insbesondere Druckgasleistungsschalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0124211A1 *

Also Published As

Publication number Publication date
DE19948687C1 (de) 2001-02-15
WO2001024211A1 (fr) 2001-04-05
EP1218906B1 (fr) 2003-04-23
DE50001913D1 (de) 2003-05-28
AU1991701A (en) 2001-04-30

Similar Documents

Publication Publication Date Title
EP1766646B1 (fr) Ampoule sous vide et ensemble de contacts pour un disjoncteur a vide
EP2946394B1 (fr) Ensemble de coupure
DE2215656B2 (de) Elektrischer Druckgasschalter
EP1105898B1 (fr) Sectionneur de puissance haute tension pourvu d'une unite disjoncteur
EP3469618B1 (fr) Unité coupe-circuit pour disjoncteur
EP1306868B1 (fr) Sectionneur de puissance haute tension à buse isolante
DE2812945C2 (de) Druckgasschalter
DE19803974C1 (de) Kontaktanordnung für einen elektrischen Leistungsschalter
EP1226597B1 (fr) Disjoncteur a gaz comprime
DE3015946A1 (de) Blaskolbenschalter
WO2016151002A1 (fr) Buse isolante et dispositif de commutation électrique pourvu dune buse isolante
EP0743665B1 (fr) Disjoncteur
EP2309526B1 (fr) Commutateur de puissance avec des branches de courant nominal parallèles
WO2007082399A1 (fr) Chambre de coupure pour un disjoncteur à haute tension à isolation gazeuse
EP1218906B1 (fr) Disjoncteur haute tension
EP3039703B1 (fr) Disjoncteur haute tension à isolation gazeuse
EP1913621A1 (fr) Disjoncteur a autosoufflage pourvu d'un corps de commande
EP0664553B1 (fr) Disjoncteur de puissance haute tension à chambre d'échauffement
DE3930550C2 (de) Schaltkammer für SF¶6¶-Leistungsschalter
EP1772882A1 (fr) Interrupteur à gaz comprimé équipé d'un pilotage du champ électrique
DE102014216171A1 (de) Elektrische Schalteinrichtung
DE19522581C1 (de) Elektrischer Druckgas-Leistungsschalter
EP1225610A1 (fr) Agencement de contacts d'arc pour disjoncteur
DE1590493B1 (de) Sicherungstrennschalter
WO2009056438A1 (fr) Disjoncteur haute tension à arc de coupure rotatif

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020301

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH DE FR IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20030423

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030423

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 50001913

Country of ref document: DE

Date of ref document: 20030528

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030723

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 1218906E

Country of ref document: IE

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: ABB SCHWEIZ AG, INTELLECTUAL PROPERTY CH-LC/IP

Effective date: 20040122

Opponent name: AREVA ENERGIETECHNIK GMBH

Effective date: 20040123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040401

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20061016

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO