EP0239932A1 - Hochspannungsdruckgaslastschalter - Google Patents

Hochspannungsdruckgaslastschalter Download PDF

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Publication number
EP0239932A1
EP0239932A1 EP87104480A EP87104480A EP0239932A1 EP 0239932 A1 EP0239932 A1 EP 0239932A1 EP 87104480 A EP87104480 A EP 87104480A EP 87104480 A EP87104480 A EP 87104480A EP 0239932 A1 EP0239932 A1 EP 0239932A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
contacts
circuit breaker
blowing
communication
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
EP87104480A
Other languages
English (en)
French (fr)
Other versions
EP0239932B1 (de
Inventor
Edmond Thuries
Denis Dufournet
Satoru Yanabu
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.)
Alstom Holdings SA
Original Assignee
Alstom SA
GEC Alsthom 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 Alstom SA, GEC Alsthom SA filed Critical Alstom SA
Publication of EP0239932A1 publication Critical patent/EP0239932A1/de
Application granted granted Critical
Publication of EP0239932B1 publication Critical patent/EP0239932B1/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
    • H01H33/70—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
    • 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
    • H01H2033/902—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 with the gases from hot space and compression volume following different paths to arc space or nozzle, i.e. the compressed gases do not pass through hot volume
    • 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
    • H01H2033/908—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 using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume

Definitions

  • the present invention relates to a pressurized dielectric gas circuit breaker, of the type comprising a blowing chamber and a thermal volume.
  • the blowing chamber comprises means such as a cylinder and piston for compressing the gas at the time of the opening operation and directing it, through a blowing nozzle on the arc to be cut.
  • Thermal volume is meant a volume opening to an area close to that where the arc shape at the time of r breaker opening.
  • the gas of this volume is heated by the arc and its pressure increases.
  • the energy thus accumulated is generally used to contribute to the blowing of the arc and / or constitute an additional energy for the operation of the circuit breaker.
  • the arc In the case where the current to be cut is low (nominal current or lower), the arc is low and the thermal volume plays a negligible role in breaking the arc which must then be ensured by the blowing chamber.
  • the gas heated by the arc is sent directly to the arc to be cut.
  • this gas does not have all the dielectric qualities required for perfect arc cutting, due to the impurities it contains and the ionization of some of its molecules.
  • An object of the invention is to use the energy of the arc to send a jet of fresh gas onto the arc and not a hot and polluted gas.
  • An object of the invention is to push fresh gas without mechanical means.
  • the circuit breaker includes an insulating jacket. 1 and contains a dielectric gas such as sulfur hexafluoride under a pressure of a few bars.
  • the breaking chamber includes a fixed assembly and a set mobile.
  • the fixed assembly comprises a metal block 2 connected to a power outlet not shown; on the block 2 is fixed a part 3 comprising a tubular part 3A at the end of which is arranged a ring 4 constituting the fixed main contact of the circuit breaker.
  • a cylindrical piece 6 in the thickness of which are formed channels such as 7 which pass through it parallel to its axis.
  • the annular volume between the cylinders 6 and 3A is designated by 8.
  • the channels 7 communicate with the volume 8 by an annular volume 9 formed between the parts 3 and 6.
  • a tubular part 14 At the end of the tube 6, and on the interior side, is fixed a tubular part 14 to which is subjected a ring of arcing contact fingers 15.
  • an insulating tip 16 terminated by an annular electrode 17 with floating potential.
  • the fixed main contact is extended by an insulating nozzle 19 defining with the insulating nozzle 16 a passage 20.
  • the passage 20 communicates with the passage 8 by means of a movable valve 21, coming into contact under the action of a spring 22 with a step 6A of the tube 6.
  • the passage 20 also communicates, by a passage 24, with a blowing volume 25 delimited by an insulating cylinder 26, a semi-mobile piston 27 and a crown 3B forming part of the part 3.
  • the piston moves under the action of a spring 28 placed in a tubular housing 29.
  • the piston is extended by a guide cylinder 30.
  • a ring 33 guides the cylinder 30.
  • References 34 and 35 designate pressure balancing holes.
  • the insulating part 16 and the fingers 15 define a volume thermal 36 opening onto the area where an arc forms when the circuit breaker opens.
  • the thermal volume 36 is closed by the tubular end part of the movable part 40 constituting the movable arcing contact.
  • the thermal volume 36 remains closed by means of a socket 37 pushed by a spring 38.
  • the socket 37 has an end 37A of insulating material.
  • the tube 40 constituting the movable arcing contact is terminated by a tip 40A of alloy resistant to wear due to the arcing.
  • the movable part of the switching chamber carries a set of permanent contact fingers 41, cooperating with contact 4.
  • the fingers 41 are protected by a scent-proof cover 42 also serving as a pusher for the tube 26.
  • the mobile assembly is connected by sliding contacts not shown to an outlet not shown.
  • the circuit breaker works as follows.
  • FIG. 3A Reference is made to FIG. 3A.
  • the arc A1 which gushes out, during the separation of the arcing contacts, between the fingers 15 and the electrode 17, produces in the thermal chamber 36 an increase in pressure insufficient to move the valve 21.
  • Arc A2 which is established between electrode 17 and movable arc contact 40 is cut off by the jet of compressed gas coming from blowing volume 25 and which passes through passage 20.
  • FIG. 3B Reference is made to FIG. 3B.
  • the pressure generated by the arc A1 is so high that it succeeds in overcome the pressure of the spring 22 and the back pressure of the volume 25.
  • the valve 21 opens under the action of the gas contained in the channels 8 and which are pushed by the pressure generated in the volume 36.
  • the gas of the channels 8 is fresh thanks to the volume of gas 7 which isolates the gas from the channels of the thermal chamber 36.
  • the gas from the channels 8 flows through the blowing nozzle 20 and comes to cut the arc A2.
  • the fresh compressed gas in volume 25 can then escape through passages 24 and 20, and ensure the dielectric strength of the device.
  • the invention thus makes it possible to use the thermal energy of the arc under the best conditions.
  • the invention applies to high voltage circuit breakers.

Landscapes

  • Circuit Breakers (AREA)
EP87104480A 1986-04-01 1987-03-26 Hochspannungsdruckgaslastschalter Expired - Lifetime EP0239932B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8604606 1986-04-01
FR8604606A FR2596574B1 (fr) 1986-04-01 1986-04-01 Disjoncteur a haute tension a gaz dielectrique sous pression

Publications (2)

Publication Number Publication Date
EP0239932A1 true EP0239932A1 (de) 1987-10-07
EP0239932B1 EP0239932B1 (de) 1991-01-16

Family

ID=9333732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104480A Expired - Lifetime EP0239932B1 (de) 1986-04-01 1987-03-26 Hochspannungsdruckgaslastschalter

Country Status (12)

Country Link
US (1) US4754109A (de)
EP (1) EP0239932B1 (de)
JP (1) JP2514030B2 (de)
CN (1) CN1005942B (de)
BR (1) BR8701457A (de)
DE (1) DE3767340D1 (de)
DK (1) DK168777B1 (de)
ES (1) ES2019593B3 (de)
FR (1) FR2596574B1 (de)
GR (1) GR3001705T3 (de)
IE (1) IE60331B1 (de)
PT (1) PT84595B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2646961A1 (fr) * 1989-05-11 1990-11-16 Alsthom Gec Disjoncteur a moyenne tension a autosoufflage
WO2010112058A1 (en) * 2009-03-30 2010-10-07 Abb Research Ltd Circuit breaker
WO2011018426A1 (fr) * 2009-08-14 2011-02-17 Areva T&D Sas Chambre de coupure pour disjoncteur a moyenne ou haute tension a energie de manœuvre reduite

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641409B1 (fr) * 1989-01-02 1996-04-26 Alsthom Gec Disjoncteur a haute et moyenne tension a gaz de soufflage
FR2647255B1 (fr) * 1989-05-17 1993-04-23 Alsthom Gec Disjoncteur a haute tension a gaz dielectrique de soufflage
JPH04284319A (ja) * 1991-03-13 1992-10-08 Hitachi Ltd ガス遮断器
FR2766609B1 (fr) * 1997-07-24 1999-09-24 Gec Alsthom T & D Sa Interrupteur a gaz a volume d'expansion thermique compressible
GB2332566B (en) * 1997-12-19 2001-09-19 Rolls Royce Power Eng Electrical circuit breaker
JP4855825B2 (ja) * 2006-04-27 2012-01-18 株式会社東芝 パッファ形ガス遮断器
JP5482613B2 (ja) * 2010-10-05 2014-05-07 株式会社日立製作所 ガス遮断器
CN102945768B (zh) * 2012-11-07 2015-04-22 中国西电电气股份有限公司 一种断路器灭弧装置
CN104299841B (zh) * 2014-04-25 2016-11-23 国家电网公司 灭弧室及使用该机构的断路器
EP3407370B1 (de) * 2017-05-24 2020-04-01 General Electric Technology GmbH Druckgasschalter mit optimierter gasspeicherkammer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385212A1 (fr) * 1977-03-24 1978-10-20 Mitsubishi Electric Corp Interrupteur de circuit
FR2575596A1 (fr) * 1985-01-02 1986-07-04 Alsthom Atlantique Disjoncteur a gaz comprime a double coupure thermodynamique et une pluralite de directions de soufflage
FR2576144A1 (fr) * 1985-01-16 1986-07-18 Alsthom Atlantique Disjoncteur a haute tension, a gaz comprime, a faible energie de manoeuvre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710051A1 (de) * 1976-06-24 1978-01-05 Sprecher & Schuh Ag Druckgasschalter
FR2576143B1 (fr) * 1985-01-16 1987-12-24 Alsthom Atlantique Disjoncteur a haute tension, a gaz comprime, a energie de manoeuvre assistee par l'effet thermique de l'arc et a double mouvement
FR2576142B1 (fr) * 1985-01-16 1987-12-24 Alsthom Atlantique Disjoncteur a haute tension, a gaz comprime, a energie de manoeuvre assistee par l'effet thermique de l'arc

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385212A1 (fr) * 1977-03-24 1978-10-20 Mitsubishi Electric Corp Interrupteur de circuit
FR2575596A1 (fr) * 1985-01-02 1986-07-04 Alsthom Atlantique Disjoncteur a gaz comprime a double coupure thermodynamique et une pluralite de directions de soufflage
FR2576144A1 (fr) * 1985-01-16 1986-07-18 Alsthom Atlantique Disjoncteur a haute tension, a gaz comprime, a faible energie de manoeuvre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2646961A1 (fr) * 1989-05-11 1990-11-16 Alsthom Gec Disjoncteur a moyenne tension a autosoufflage
WO2010112058A1 (en) * 2009-03-30 2010-10-07 Abb Research Ltd Circuit breaker
US8502101B2 (en) 2009-03-30 2013-08-06 Abb Research Ltd Circuit breaker
WO2011018426A1 (fr) * 2009-08-14 2011-02-17 Areva T&D Sas Chambre de coupure pour disjoncteur a moyenne ou haute tension a energie de manœuvre reduite

Also Published As

Publication number Publication date
DK163087A (da) 1987-10-02
EP0239932B1 (de) 1991-01-16
CN1005942B (zh) 1989-11-29
DK168777B1 (da) 1994-06-06
ES2019593B3 (es) 1991-07-01
FR2596574A1 (fr) 1987-10-02
FR2596574B1 (fr) 1988-05-20
DK163087D0 (da) 1987-03-31
IE60331B1 (en) 1994-06-29
PT84595B (pt) 1989-11-30
IE870832L (en) 1987-10-01
US4754109A (en) 1988-06-28
DE3767340D1 (de) 1991-02-21
BR8701457A (pt) 1988-01-05
PT84595A (fr) 1987-04-01
JPS62237626A (ja) 1987-10-17
CN87102445A (zh) 1987-10-14
GR3001705T3 (en) 1992-11-23
JP2514030B2 (ja) 1996-07-10

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