EP1843376A1 - Chambre de coupure d'un interrupter à haute tension avec chambre de réchauffement de taille variable - Google Patents

Chambre de coupure d'un interrupter à haute tension avec chambre de réchauffement de taille variable Download PDF

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Publication number
EP1843376A1
EP1843376A1 EP06405144A EP06405144A EP1843376A1 EP 1843376 A1 EP1843376 A1 EP 1843376A1 EP 06405144 A EP06405144 A EP 06405144A EP 06405144 A EP06405144 A EP 06405144A EP 1843376 A1 EP1843376 A1 EP 1843376A1
Authority
EP
European Patent Office
Prior art keywords
piston
heating volume
storage space
gas
switching chamber
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
EP06405144A
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German (de)
English (en)
Other versions
EP1843376B1 (fr
Inventor
Christian Franck
Martin Seeger
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.)
ABB Research Ltd Switzerland
Original Assignee
ABB Research Ltd Switzerland
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Filing date
Publication date
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Application filed by ABB Research Ltd Switzerland filed Critical ABB Research Ltd Switzerland
Priority to EP06405144A priority Critical patent/EP1843376B1/fr
Priority to DE502006003878T priority patent/DE502006003878D1/de
Priority to AT06405144T priority patent/ATE433191T1/de
Priority to CNA2007800124869A priority patent/CN101416263A/zh
Priority to PCT/CH2007/000132 priority patent/WO2007112605A1/fr
Publication of EP1843376A1 publication Critical patent/EP1843376A1/fr
Priority to US12/245,297 priority patent/US20090078680A1/en
Publication of EP1843376B1 publication Critical patent/EP1843376B1/fr
Application granted granted Critical
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
    • 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 switching chamber of a high voltage switch with a heating volume according to the preamble of claim 1.
  • the invention also relates to a switch with such a switching chamber.
  • the gas-insulated high-voltage switch is used in a high-voltage electrical network to turn on and off currents that range from very small inductive and capacitive currents through normal load currents to medium and large short-circuit currents.
  • To extinguish an arc formed when switching off an insulating gas is used with good arc extinguishing properties in this switch, which is compressed during the turn-off and subsequently as arc gas inflates the arc until it goes out at the zero crossing of the current to be interrupted.
  • a compression means operated by the switch drive and therefore drive energy required compression device and / or the switching arc itself, whose energy is used to store hot arc gases under pressure in a heating volume (so-called Adblasflam).
  • a switching chamber of the type mentioned with a flexibly designed heating volume is described in DE 44 12 249 A1 , A part of the boundary wall of the heating volume is formed by a piston which is displaceably mounted counter to a restoring force in a hollow cylinder.
  • the volume of the heating volume is such that when switching off small currents in its interior, an extinguishing gas pressure is built up, which is sufficient to blow an associated low-performance switching arc in general can successfully.
  • a high quenching gas pressure is built up in the heating volume, which shifts the piston against the restoring force and increases the heating volume.
  • extinguishing gas of high pressure and high temperature is then available from an enlarged volume.
  • the hollow cylinder is connected to an expansion space of the switching chamber.
  • the object is to provide a switching chamber of the type mentioned above, which is characterized by installation in a gas-insulated high-voltage switch despite low drive power by a good switching capacity.
  • a part of the wall of a heating volume forming piston is designed as a differential piston and has on its side facing away from the heating volume on a piston step, which acts in an expansion space first working surface and in a insulating gas filled storage space acting second working surface forms.
  • a channel connecting the heating volume with the storage space is further guided, which is open when the Isoliergastik in the storage space is greater than the quenching gas pressure in the heating volume.
  • This value corresponds to a density value which is achieved with a heating volume which is greater from the beginning, but whose volume would be too great to produce an extinguishing gas pressure when switching off small to medium currents, which has a sufficient magnitude for successful arc blowing.
  • the first working surface should be dimensioned such that, above a limit value of the extinguishing gas pressure prevailing in the heating volume, the restoring force is smaller than a counterforce formed from the difference between extinguishing gas pressure and gas pressure in the expansion space.
  • the restoring force is generated in general by a force acting on the piston compression spring, which is arranged in a simple manufacturing manner in the storage space or in the expansion space.
  • the first working surface is formed by an axially extending piston extension and contains the expansion space an axially aligned subspace in which the first working surface is slidably guided.
  • the piston extension is tubular and the subspace has a volume designed as a hollow cylinder, then the interrupter chamber is characterized by a high degree of operational reliability, since operationally important properties, in particular gas tightness, mechanical and dielectric strength and current carrying capacity, are achieved with simple means be optimized.
  • the outer surface of the hollow cylinder is formed by a metal tube bounding the heating volume to the outside and the inner surface by the insulating nozzle, it is possible to resort to already existing components for cost-effective production of the switching chamber.
  • a non-return valve is arranged in a connection provided between storage space and expansion space, which is blocked in the storage space when an excess pressure is formed, the storage space can quickly be filled again with fresh insulating gas after a switch-off operation.
  • FIGURE shows a plan view of a guided along an axis section through a designated for a gas-insulated high-voltage switch switching chamber according to the invention, in which the switching chamber is shown above the axis with the switch closed and below the axis when opening the switch.
  • the switching chamber of a high-voltage circuit breaker shown in the single figure contains a filled with a compressed insulating gas, such as based on sulfur hexafluoride, nitrogen, oxygen or carbon dioxide or mixtures of these gases, for example air, housing 1 and a housing 1 and received by the housing
  • a compressed insulating gas such as based on sulfur hexafluoride, nitrogen, oxygen or carbon dioxide or mixtures of these gases, for example air
  • the arcing contact 3 can be moved along the axis A, whereas the arcing contact 4 is generally fixedly held in the housing 1, but optionally also along the axis Axis can be moved.
  • the two arcing contacts 3, 4 are coaxially covered by an insulating nozzle 5 and a heating volume 6 for storing quenching gas.
  • the heating volume 6 is designed in the manner of a torus with a rectangular cross-section in the circumferential direction.
  • the heating volume 6 can generally accommodate approximately 1 to 2 liters of pressurized extinguishing gas.
  • a heating channel 7 which connects a when opening the switch by separating the AbbrandWallete 3, 4 and formed by the insulating 5 radially bounded arc zone 8 with the heating volume 6.
  • a part of the wall of the heating volume 6 is formed by a differential piston 9, which can be displaced gas-tight in an axially symmetrical annular space 11 against a restoring force F applied by a compression spring 10.
  • the piston 9 has a marked by the reference numeral 1 A ring-shaped working surface having an effective cross-sectional size of the A 1 to its 6 the heating volume defining side.
  • the working surface A 2 acts in an expansion space 12, in which the insulating gas has a pressure p 0
  • the piston surface A 1 - A 2 in a filled with fresh insulating gas storage space 13.
  • the heating volume 6 and the storage space 13 with each other combines.
  • the storage space 13 is designed as an annular chamber and is bounded radially by two coaxially arranged hollow cylinders and axially by two end bodies.
  • the internal hollow cylinder is formed by a molded into the insulating nozzle 5 tubular piston extension 51 which limits an axially guided portion of the heating channel 7 to the outside.
  • the outer hollow cylinder is formed by two telescopically displaceable, tubular extensions 52 and 91, of which the extension 52 is also formed in the insulating nozzle 5, while the extension 91 is formed in the piston 9.
  • the two end faces provided for the axial delimitation are formed on the one hand by a radially guided section 92 of the piston 9 and on the other hand by a radially guided section 53 of the insulating nozzle 5.
  • the piston section 92 forms the working surface A 1 -A 2 .
  • the compression spring 10 is disposed in the storage space 13 and is supported at one end on the portion 92 and the other end on the portion 53.
  • a check valve 15 is arranged, which is oriented such that it is locked in the storage volume 13 when an overpressure.
  • the working surface A 1 is formed by the piston extension 91 and is guided displaceably in an axially aligned subspace 16 of the expansion space 12.
  • the subspace 16 is evidently a volume designed as a hollow cylinder.
  • the outer surface of the hollow cylinder is formed by a heating volume 6 to the outside limiting and generally used to guide operating currents metal tube 17, the inner surface of the parts 52, 53 of the insulating 5th
  • the left end of the arcing contact 4 is inserted in an electrically conductive manner into the right end of the tubular arc contact 3.
  • the two arc contacts 3, 4 separate from each other and this forms a footing on the two ends of the arcing contacts arc L, which generates in the arc zone 8 hot high pressure gases.
  • the temperature and pressure of the arc gases are determined by the arc work and are therefore proportional to the duration of the arc current determined by the current zero crossing and approximately the square of the current to be switched off.
  • the pressure of the arc gases in the arc zone 8 is generally greater than in the heating volume 6. In the heating channel 7, therefore, hot gas flows from the arc zone 8 into the heating volume 6. If the heating effect of the arc L decreases as it approaches the zero crossing of the current, then there is a flow reversal. Gas stored in the heating volume 6 with a pressure p 1 flows as extinguishing gas via the heating channel 7 into the arc zone 8 and there blows the arc L at least until it is extinguished in the current zero crossing.
  • the volume of the heating volume 6 is determined so that when switching off small to medium currents in the heating volume 6, a sufficient amount of compressed extinguishing gas is generally available for extinguishing an arc. Additional extinguishing gas can be fed from a at a small extinguishing gas pressure p 1 connected to the heating volume 6 compression space 18 a weakly dimensioned piston-cylinder compression device.
  • the piston 9 is then guided under the restoring action of a slightly prestressed compression spring 10 standing against a stop 19 held on the metal tube 17.
  • the biasing force F 1 of the spring is adjusted so that it keeps the piston 9 at stop 19 below a limit value p 1 G of the quenching gas pressure p 1 in the heating volume 6.
  • the storage space 13 is then connected to the insulating gas filled expansion space 12, in which the insulating gas is maintained at a pressure p 0 .
  • the preload force F 1 must therefore be A 1 ⁇ (p 1 G - po).
  • the piston is moved more or less far to the right.
  • the movement of the piston 9 to the right is limited by a stop formed by the extension 52.
  • a force applied by the piston 9 must be greater than the force applied by the compression spring 9 restoring force F.
  • the piston 9 by differential action of the pressures p 1 in the heating volume 6 and p 0 force generated in subspace 12 is A 2 ⁇ (p 1 -p 0 ). Therefore, the piston area A 2 should be dimensioned so that over the entire path I, the spring force F prevailing at a location of the path is smaller or highest equal to the differential force acting on the piston 9.

Landscapes

  • Circuit Breakers (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Constitution Of High-Frequency Heating (AREA)
EP06405144A 2006-04-05 2006-04-05 Chambre de coupure d'un interrupter à haute tension avec chambre de réchauffement de taille variable Expired - Lifetime EP1843376B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP06405144A EP1843376B1 (fr) 2006-04-05 2006-04-05 Chambre de coupure d'un interrupter à haute tension avec chambre de réchauffement de taille variable
DE502006003878T DE502006003878D1 (de) 2006-04-05 2006-04-05 Schaltkammer eines Hochspannungsschalters mit einem Heizvolumen veränderbarer Grösse
AT06405144T ATE433191T1 (de) 2006-04-05 2006-04-05 Schaltkammer eines hochspannungsschalters mit einem heizvolumen veränderbarer grösse
PCT/CH2007/000132 WO2007112605A1 (fr) 2006-04-05 2007-03-09 Chambre de coupure d'un disjoncteur haute tension doté d'une grandeur variable de volume de chauffage
CNA2007800124869A CN101416263A (zh) 2006-04-05 2007-03-09 具有变尺寸加热腔的高压开关的电弧室
US12/245,297 US20090078680A1 (en) 2006-04-05 2008-10-03 Arc chamber of a high-voltage switch with a heating volume of variable size

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06405144A EP1843376B1 (fr) 2006-04-05 2006-04-05 Chambre de coupure d'un interrupter à haute tension avec chambre de réchauffement de taille variable

Publications (2)

Publication Number Publication Date
EP1843376A1 true EP1843376A1 (fr) 2007-10-10
EP1843376B1 EP1843376B1 (fr) 2009-06-03

Family

ID=36917380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06405144A Expired - Lifetime EP1843376B1 (fr) 2006-04-05 2006-04-05 Chambre de coupure d'un interrupter à haute tension avec chambre de réchauffement de taille variable

Country Status (6)

Country Link
US (1) US20090078680A1 (fr)
EP (1) EP1843376B1 (fr)
CN (1) CN101416263A (fr)
AT (1) ATE433191T1 (fr)
DE (1) DE502006003878D1 (fr)
WO (1) WO2007112605A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2791959B1 (fr) 2011-12-13 2016-03-09 ABB Technology AG Disjoncteur doté d'une injection de fluide
EP2791958B1 (fr) 2011-12-13 2016-06-15 ABB Technology AG Disjoncteur doté d'une injection de fluide

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2009347593B2 (en) 2009-06-12 2015-01-15 Abb Technology Ag Dielectric insulation medium
DE202009009305U1 (de) 2009-06-17 2009-11-05 Ormazabal Gmbh Schalteinrichtung für Mittel-, Hoch- oder Höchstspannung mit einem Füllmedium
FR2949170B1 (fr) * 2009-08-14 2011-11-25 Areva T & D Sas Chambre de coupure pour disjoncteur a moyenne ou haute tension a energie de manoeuvre reduite
DE102010020979A1 (de) * 2010-05-12 2011-11-17 Siemens Aktiengesellschaft Druckgas-Leistungsschalter
RU2621900C2 (ru) 2010-12-14 2017-06-08 Абб Текнолоджи Аг Диэлектрическая изолирующая среда
WO2013087687A1 (fr) 2011-12-13 2013-06-20 Abb Technology Ag Disjoncteur doté d'une injection de fluide
WO2013087700A1 (fr) 2011-12-13 2013-06-20 Abb Technology Ag Environnement de convertisseur haute tension rendu étanche et isolé au gaz pour plateformes en mer
US9343252B2 (en) 2014-08-27 2016-05-17 Eaton Corporation Arc extinguishing contact assembly for a circuit breaker assembly
US9305726B2 (en) 2014-08-27 2016-04-05 Eaton Corporation Arc extinguishing contact assembly for a circuit breaker assembly
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
DE102018211621A1 (de) * 2018-07-12 2020-01-16 Siemens Aktiengesellschaft Gasisolierter Schalter
CN110838421B (zh) * 2018-08-15 2022-03-29 平高集团有限公司 断路器及其灭弧室
CN110838420A (zh) * 2018-08-15 2020-02-25 平高集团有限公司 断路器及其灭弧室

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE710178C (de) * 1940-05-04 1941-09-05 Studiengesellschaft Fuer Hochl Druckgasschalter mit einem im Schaltergehaeuse eingebauten Differentialpumpkolben
DE716929C (de) * 1937-08-24 1942-02-02 Sachsenwerk Licht & Kraft Ag Stroemungsschalter
DE1916811A1 (de) * 1969-03-28 1970-10-08 Siemens Ag Elektrischer Leistungsschalter
DE4412249A1 (de) * 1994-04-06 1995-10-12 Siemens Ag Elektrischer Hochspannungs-Leistungsschalter mit einem Heizraum und einem Kompressionsraum

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2821482B1 (fr) * 2001-02-27 2003-04-04 Alstom Disjoncteur incluant un canal de vidange de la chambre de compression par piston

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE716929C (de) * 1937-08-24 1942-02-02 Sachsenwerk Licht & Kraft Ag Stroemungsschalter
DE710178C (de) * 1940-05-04 1941-09-05 Studiengesellschaft Fuer Hochl Druckgasschalter mit einem im Schaltergehaeuse eingebauten Differentialpumpkolben
DE1916811A1 (de) * 1969-03-28 1970-10-08 Siemens Ag Elektrischer Leistungsschalter
DE4412249A1 (de) * 1994-04-06 1995-10-12 Siemens Ag Elektrischer Hochspannungs-Leistungsschalter mit einem Heizraum und einem Kompressionsraum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2791959B1 (fr) 2011-12-13 2016-03-09 ABB Technology AG Disjoncteur doté d'une injection de fluide
EP2791958B1 (fr) 2011-12-13 2016-06-15 ABB Technology AG Disjoncteur doté d'une injection de fluide

Also Published As

Publication number Publication date
ATE433191T1 (de) 2009-06-15
WO2007112605A1 (fr) 2007-10-11
EP1843376B1 (fr) 2009-06-03
DE502006003878D1 (de) 2009-07-16
CN101416263A (zh) 2009-04-22
US20090078680A1 (en) 2009-03-26

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