EP0807945A1 - Hochspannungsschalter mit Einschaltwiderstand - Google Patents

Hochspannungsschalter mit Einschaltwiderstand Download PDF

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Publication number
EP0807945A1
EP0807945A1 EP97400884A EP97400884A EP0807945A1 EP 0807945 A1 EP0807945 A1 EP 0807945A1 EP 97400884 A EP97400884 A EP 97400884A EP 97400884 A EP97400884 A EP 97400884A EP 0807945 A1 EP0807945 A1 EP 0807945A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
contact
mobile
assembly
fixed
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
EP97400884A
Other languages
English (en)
French (fr)
Other versions
EP0807945B1 (de
Inventor
Michel Perret
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.)
Grid Solutions SAS
Original Assignee
GEC Alsthom T&D SA
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 GEC Alsthom T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0807945A1 publication Critical patent/EP0807945A1/de
Application granted granted Critical
Publication of EP0807945B1 publication Critical patent/EP0807945B1/de
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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/166—Impedances connected with contacts the impedance being inserted only while closing the switch

Definitions

  • the present invention relates to a high voltage circuit breaker comprising for each pole, a cylindrical casing filled with insulating gas inside which are arranged the cut-off members and a resistor, arranged axially, associated with means for its temporary insertion when closing the circuit breaker.
  • a first object of the invention is to provide a circuit breaker of the aforementioned type in which the means for inserting the resistor are lightened, which makes it possible to reduce the power of the control.
  • Another object of the invention is to produce a circuit breaker of the aforementioned type in which the means for inserting the resistor are of reduced volume, which makes it possible to reduce the diameter of the envelopes used.
  • the present invention relates to a circuit breaker according to the claims.
  • circuit breaker pole will be described, it being understood that the invention applies to a three-phase circuit breaker comprising three identical poles.
  • reference 1 designates an insulating envelope, for example made of ceramic, filled with a gas with good dielectric properties such as sulfur hexafluoride SF6.
  • the breaking chamber comprises a fixed assembly comprising a fixed metal cylinder 2 connected to a first outlet not shown.
  • a resistance 3 called “closing” is disposed axially in the casing 1; it consists of a stack of discs 3A surrounded by a lateral insulating sheath 4; a first end of the stack is connected to the first socket mentioned above; the other end of the stack is terminated by a metal flange 6.
  • a metal tube 7 constituting the fixed main contact of the circuit breaker; to the same cylinder 2 is fixed, by metal arms 8, a metallic tubular portion 9, the end 9A of which is made of an alloy resistant to the effects of the electric arc.
  • This tubular portion 9-9A constitutes the arcing contact, fixed, of the circuit breaker.
  • the mobile assembly of the circuit breaker comprises a circular metal flange 15 disposed perpendicular to the axis of the envelope.
  • This metal flange carries a ring of contact fingers 16 constituting the main movable contacts which cooperate with the tube 7.
  • the fingers 16 are protected by a corona hood 16A.
  • the flange is connected to two coaxial cylinders whose common axis is the axis of the envelope.
  • These cylinders, referenced 17 and 18, define a blowing volume V1 in which a fixed blowing piston, not shown, is arranged.
  • One of the cylinders, the inner cylinder 17 for example, is mechanically connected to an operating rod, not shown; the other cylinder, 18, is electrically connected by sliding contacts, not shown, to a second outlet not shown.
  • the inner cylinder 17 is extended on the other side of the flange 15 by a cylindrical portion 17A provided internally with sliding contacts 17B.
  • the cylindrical portions 17A and 20 define an annular volume V2 in which the end of a blowing nozzle 22 made of insulating material moves.
  • the nozzle 22 has, like the conventional circuit breaker nozzles, a neck 22A, but it ends in a crown 22B constituting a shoulder facilitating its sliding in volume V2.
  • a spring 24 rests on the one hand on the shoulder 22B and on the other hand on a shoulder 20A at the end of the cylindrical portion 20.
  • the nozzle 22 is secured, by a ring 26 to a metallic tubular portion 30 constituting a semi-mobile arcing contact cooperating with the fixed arcing contact 9-9A.
  • the portion 30 is terminated at one end by a contact piece 30A made of an alloy resistant to the effects of the electric arc.
  • the flange 15 has passages 15A for the passage of the blowing gas from volume V1 to volume V2 during an opening operation.
  • the circuit breaker works as follows.
  • the circuit breaker In normal operating conditions, the circuit breaker is in the configuration of Fig. 1.
  • the permanent current flows through the first socket, the cylinder 2, the tube 7, the fingers 16, the flange 15, the tube 18 and the second socket.
  • the tripping of the circuit breaker is produced by the displacement of the mobile assembly, under the action of the circuit breaker control, not shown, to the right of Fig. 1.
  • a first phase shown in Fig.2
  • the mobile assembly moved a few tens of mm to the right.
  • the semi-mobile sub-assembly constituted by the nozzle (22) and the contact arc (30-30A) remains in the position they occupied in the configuration of FIG. 1. This allows the main contacts 7 and 16 to separate, the current switching in the arcing contacts 9-9A and 30-30A. In this movement, the spring 24 is compressed.
  • the contacts 16 After an additional stroke of the moving element, the contacts 16 have passed the insertion electrode 13, and the arcing contacts 9-9A and 30-30A are about to separate, since the spring being completely compressed, the arcing contact 30-30A of the semi-mobile sub-assembly is driven by the mobile assembly.
  • the pressure in the volume V2 decreases rapidly and, under the effect of the spring, the semi-mobile sub-assembly constituted by the nozzle 22 and the arcing contact 30-30A returns to its initial position relative to the mobile assembly.
  • the circuit breaker is, in the tripped position, in the configuration of Fig. 5.
  • the voltage is held between the ends of the contacts 9A and 30A, as well as between the end of the corona hoods 16A and the electrode 13, thanks to sufficient isolation distances.
  • the distance between the end of the cover (16A) of the movable main contact (16) and the electrode (13) is less than the distance between the respective ends 9A and 30A of the arcing contacts 9 and 30. It is this feature which will allow the temporary insertion of the resistor during the closing operation of the circuit breaker.
  • a closing maneuver results in a movement to the left of the moving assembly.
  • the distance between the respective ends of the 9A and 30A of the arcing contacts becomes less than the isolation distance (Fig.7), an arc strikes between these contacts, which has the consequence of shorting the resistance 3.
  • the dimensions of the various elements of the circuit breaker and the value of the speed of movement of the mobile assembly are chosen so that the insertion time is between 8 and 10 milliseconds, which is the range prescribed by network users.
  • the mobile assembly returns to its initial position (Fig. 1).

Landscapes

  • Circuit Breakers (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP97400884A 1996-05-13 1997-04-21 Hochspannungsschalter mit Einschaltwiderstand Expired - Lifetime EP0807945B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9605910A FR2748597B1 (fr) 1996-05-13 1996-05-13 Disjoncteur a haute tension avec insertion de resistance a la fermeture
FR9605910 1996-05-13

Publications (2)

Publication Number Publication Date
EP0807945A1 true EP0807945A1 (de) 1997-11-19
EP0807945B1 EP0807945B1 (de) 2003-03-05

Family

ID=9492065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400884A Expired - Lifetime EP0807945B1 (de) 1996-05-13 1997-04-21 Hochspannungsschalter mit Einschaltwiderstand

Country Status (8)

Country Link
US (1) US5841614A (de)
EP (1) EP0807945B1 (de)
AT (1) ATE233943T1 (de)
BR (1) BR9703144A (de)
CA (1) CA2206950C (de)
DE (1) DE69719401T2 (de)
ES (1) ES2191156T3 (de)
FR (1) FR2748597B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837889A2 (de) * 2006-03-24 2007-09-26 Siemens Aktiengesellschaft Unterbrechereinheit mit Einschaltwiderstand

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2770678B1 (fr) * 1997-10-30 1999-12-31 Gec Alsthom T & D Sa Disjoncteur de generateur a commande mecanique unique
FR2783088B1 (fr) * 1998-09-09 2000-10-13 Alstom Technology Interrupteur avec un systeme d'insertion d'une resistance a longue duree d'insertion
FR2793945B1 (fr) * 1999-05-17 2001-06-22 Alstom Sectionneur haute tension a contact mobile deplace a grande vitesse
US7078643B2 (en) * 2003-12-15 2006-07-18 Rostron Joseph R Capacitor switch with internal retracting impedance contactor
US7736529B2 (en) * 2007-10-12 2010-06-15 Honeywell International Inc Azeotrope-like compositions containing sulfur hexafluoride and uses thereof
EP2387057B1 (de) * 2010-05-12 2012-05-23 ABB Technology AG Gasisolierter Hochspannungsschalter
US8431842B2 (en) * 2011-01-06 2013-04-30 Tai-Her Yang Sequential switching device with surrounding distinctive joint points structure
KR101797021B1 (ko) * 2014-10-23 2017-11-13 엘에스산전 주식회사 초고압 차단기의 투입 저항 지지 구조
CN107706044A (zh) * 2017-10-26 2018-02-16 平高集团有限公司 一种动触头组件及断路器灭弧室、断路器
EP3748658B1 (de) * 2019-06-04 2022-03-23 General Electric Technology GmbH Kontaktanordnung für einschaltwiderstände

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450501A1 (fr) * 1979-03-02 1980-09-26 Alsthom Cgee Dispositif d'insertion de resistance a la fermeture d'un appareil d'interruption
DE3411445A1 (de) * 1984-02-06 1985-08-08 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Hochspannungsschalter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2663456B1 (fr) * 1990-06-14 1996-04-26 Alsthom Gec Disjoncteur a varistance incorporee.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450501A1 (fr) * 1979-03-02 1980-09-26 Alsthom Cgee Dispositif d'insertion de resistance a la fermeture d'un appareil d'interruption
DE3411445A1 (de) * 1984-02-06 1985-08-08 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Hochspannungsschalter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837889A2 (de) * 2006-03-24 2007-09-26 Siemens Aktiengesellschaft Unterbrechereinheit mit Einschaltwiderstand
EP1837889A3 (de) * 2006-03-24 2007-11-28 Siemens Aktiengesellschaft Unterbrechereinheit mit Einschaltwiderstand

Also Published As

Publication number Publication date
FR2748597B1 (fr) 1998-06-12
ES2191156T3 (es) 2003-09-01
ATE233943T1 (de) 2003-03-15
CA2206950A1 (fr) 1997-11-13
CA2206950C (fr) 2000-02-29
DE69719401T2 (de) 2004-01-15
US5841614A (en) 1998-11-24
EP0807945B1 (de) 2003-03-05
FR2748597A1 (fr) 1997-11-14
BR9703144A (pt) 1998-06-23
DE69719401D1 (de) 2003-04-10

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