EP2887367A1 - Gasisolierter Hochspannungsschutzschalter - Google Patents

Gasisolierter Hochspannungsschutzschalter Download PDF

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Publication number
EP2887367A1
EP2887367A1 EP13198479.1A EP13198479A EP2887367A1 EP 2887367 A1 EP2887367 A1 EP 2887367A1 EP 13198479 A EP13198479 A EP 13198479A EP 2887367 A1 EP2887367 A1 EP 2887367A1
Authority
EP
European Patent Office
Prior art keywords
section
circuit breaker
contact
nozzle throat
breaker according
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.)
Withdrawn
Application number
EP13198479.1A
Other languages
English (en)
French (fr)
Inventor
Martin Seeger
Emmanouil Panousis
Arthouros Iordandis
Bernardo Galletti
Daniel Over
Vincent Dousset
Joerg Lehmann
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 Technology AG
Original Assignee
ABB Technology 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
Application filed by ABB Technology AG filed Critical ABB Technology AG
Priority to EP13198479.1A priority Critical patent/EP2887367A1/de
Publication of EP2887367A1 publication Critical patent/EP2887367A1/de
Withdrawn legal-status Critical Current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
    • H01H33/70—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
    • H01H33/703—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 having special gas flow directing elements, e.g. grooves, extensions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers

Definitions

  • the invention relates to a gas-insulated high-voltage circuit breaker according to the introductory part of claim 1.
  • the circuit breaker is equipped with a contact assembly which in coaxial arrangement comprises two arcing contact members movable relative to one another along an axis.
  • a first of the two arcing contact members is realized as an axially extended contact pin.
  • the second contact member is realized as a contact tulip with an axially extended flow duct which forms a flexible nozzle throat and which receives the contact pin during current making.
  • the invention supplies a gas-insulated high-voltage circuit breaker with a contact assembly comprising in coaxial arrangement two arcing contact members movable relative to one another along an axis, a first of which being realized as an axially extended contact pin and a second as a first contact tulip with an axially extended flow duct which forms a flexible nozzle throat and which receives the contact pin during current making:
  • a contact assembly comprising in coaxial arrangement two arcing contact members movable relative to one another along an axis, a first of which being realized as an axially extended contact pin and a second as a first contact tulip with an axially extended flow duct which forms a flexible nozzle throat and which receives the contact pin during current making:
  • pressurized arc-extinguishing gas flows from an arcing zone, which takes a switching arc, through the nozzle throat of the contact tulip to an expansion room and applies an axially aligned first force to a root of the switching arc
  • the contact tulip comprises a swirl chamber for creating a predominantly circumferentially aligned second force and for applying the second force to the root of the switching arc.
  • the current breaking process uses the combined effect of the axially aligned first force due to the gas flowing through the nozzle throat of the contact tulip to the expansion volume and the circumferentially aligned second force which the swirl chamber creates. These two forces displace the root of the switching arc.
  • the switching arc attaches downstream from the nozzle throat of the contact tulip and rotates predominantly circumferentially on the inner wall of the contact tube.
  • the column of the switching arc rotates around the axis and stabilizes a loop which elongates the length of the arc. This enhances the cooling and the resistance of the switching arc and thus the interruption performance of the circuit breaker.
  • the second force is a mechanical force caused by a predominantly circumferentially aligned flow of arc-extinguishing gas, a predominantly circumferentially aligned electromagnetic force or a combination of these two forces.
  • the swirl chamber can comprises at least two slits which are arranged in a section of a tubular wall of the contact tube, wherein the at least two slits connect a by-pass flow duct with the interior of the contact tulip, wherein the by-pass flow duct surrounds at least an annular tip section of the contact tulip facing a nozzle throat of a first insulating nozzle, and wherein the at least two slits are predominantly extended along the axis and open out into the interior of the contact tulip with an outlet that is inclined with respect to the direction of the radius of the tubular wall.
  • At least two slits can extend to an end face of the annular tip section of the contact tulip.
  • the flow cross-section of a section of the at least two slits, which section is positioned in the annular tip section, can be negligible with respect to the flow cross-section of the flexible nozzle throat.
  • the flow cross-section of a section of the at least two slits, which section is positioned in the annular tip section can be somewhat smaller than the flow cross-section of the flexible nozzle throat.
  • An outside surface of the annular tip section can then be surrounded with a gas-tight jacket.
  • a first electric insulating layer can be arranged downstream from the flexible nozzle throat on an inside surface of the contact tulip.
  • the first electric insulating layer can axially extend from a diverging to a tubular section of the flow duct which sections join the flexible nozzle throat.
  • the first insulating layer prevents the root of the switching arc to stay on the nozzle throat or on the diverging section of the flow duct of the contact tulip and ensures a sufficient axial extension of the arc and thus an effective interaction of the swirl flow and the switching arc within the swirl chamber.
  • the first electric insulating layer can axially extend downstream the diverging section only on the tubular section. The first insulating layer then ensures the attachment of the root downstream from the nozzle throat and the diverging section and thus ensures the formation of a maximized loop and of a large length of the switching arc.
  • a second electric insulating layer can extend upstream from the flexible nozzle throat to an outside surface of the annular tip section of the contact tulip.
  • At least one of the first and the second electric insulating layers can comprise a thickness of some 100 ⁇ m to some mm and can preferably be manufactured from a thermoplastic or duroplastic material, like PTFE or epoxy.
  • the swirl chamber can comprises a guide arrangement for controlling the predominantly circumferentially aligned flow of arc-extinguishing gas.
  • the guide arrangement can be realized by means of blades which are arranged on an inner surface of the swirl chamber.
  • the guide arrangement can also be realized by means of the design of the at least two slits, and the inclination of the slits can vary from an outer to an inner surface of the swirl chamber.
  • a further contact tulip can be arranged downstream from a nozzle throat in a flow duct of a second insulating nozzle.
  • the further contact tulip can comprise a swirl chamber for creating a predominantly circumferentially aligned third force in the interior of the further current tulip during breaking of the current and for applying the third force to another root of the switching arc.
  • the embodiments of the gas-insulated high-voltage circuit breaker according to the invention shown in the figures comprise a tubular housing 10 which is extended along an axis A.
  • the housing 10 is filled with a dielectric insulating medium having arc-extinguishing properties, in particular a gas on the basis of sulfur hexafluoride, nitrogen or carbon dioxide or a mixture comprising one or more of these gases.
  • a dielectric insulating medium having arc-extinguishing properties in particular a gas on the basis of sulfur hexafluoride, nitrogen or carbon dioxide or a mixture comprising one or more of these gases.
  • the insulating gas is pressurized up to some bar, for instance five to eight bar.
  • a further dielectric insulating medium may it be gaseous and/or liquid, can in particular be a dielectric insulation gas or arc quenching gas.
  • Such dielectric insulation medium can for example encompass media comprising an organofluorine compound, such organofluorine compound being selected from the group consisting of: a fluoroether, an oxirane, a fluoroamine, a fluoroketone, a fluoroolefin and mixtures and/or decomposition products thereof.
  • organofluorine compound such organofluorine compound being selected from the group consisting of: a fluoroether, an oxirane, a fluoroamine, a fluoroketone, a fluoroolefin and mixtures and/or decomposition products thereof.
  • fluoroether oxirane
  • fluoroamine fluoroketone
  • fluoroolefin refer to at least partially fluorinated compounds.
  • fluoroether encompasses both hydrofluoroethers and perfluoroethers
  • oxirane encompasses both hydrofluorooxiranes and perfluorooxiranes
  • fluoroamine encompasses both hydrofluoroamines and perfluoroamines
  • fluoroketone encompasses both hydrofluoroketones and perfluoroketones
  • fluoroolefin encompasses both hydrofluoroolefins and perfluoroolefins. It can thereby be preferred that the fluoroether, the oxirane, the fluoroamine and the fluoroketone are fully fluorinated, i.e. perfluorinated.
  • the dielectric insulation medium is selected from the group consisting of: a (or several) hydrofluoroether(s), a (or several) perfluoroketone(s), a (or several) hydrofluoroolefin(s), and mixtures thereof.
  • fluoroketone as used in the context of the present invention shall be interpreted broadly and shall encompass both fluoromonoketones and fluorodiketones or generally fluoropolyketones. Explicity, more than a single carbonyl group flanked by carbon atoms may be present in the molecule. The term shall also encompass both saturated compounds and unsaturated compounds including double and/or triple bonds between carbon atoms.
  • the at least partially fluorinated alkyl chain of the fluoroketones can be linear or branched and can optionally form a ring.
  • the dielectric insulation medium comprises at least one compound being a fluoromonoketone and/or comprising also heteroatoms incorporated into the carbon backbone of the molecules, such as at least one of: a nitrogen atom, oxygen atom and sulphur atom, replacing one or more carbon atoms.
  • the fluoromonoketone in particular perfluoroketone, can have from 3 to 15 or from 4 to 12 carbon atoms and particularly from 5 to 9 carbon atoms. Most preferably, it may comprise exactly 5 carbon atoms and/or exactly 6 carbon atoms and/or exactly 7 carbon atoms and/or exactly 8 carbon atoms.
  • the dielectric insulation medium comprises at least one compound being a fluoroolefin selected from the group consisting of: hydrofluoroolefins (HFO) comprising at least three carbon atoms, hydrofluoroolefins (HFO) comprising exactly three carbon atoms, trans-1,3,3,3-tetrafluoro-1-propene (HFO-1234ze), 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf), trans-1,2,3,3,3 pentafluoroprop-1-ene (HFO-1225ye (E-isomer)), cis-1,2,3,3,3 pentafluoroprop-1-ene (HFO-1225ye (Z-isomer)) and mixtures thereof.
  • HFO hydrofluoroolefins
  • HFO hydrofluoroolefins
  • HFO hydrofluoroolefins
  • the dielectric insulation medium can further comprise a background gas or carrier gas different from the organofluorine compound (in particular different from the fluoroether, the oxirane, the fluoroamine, the fluoroketone and the fluoroolefin) and can in embodiments be selected from the group consisting of: air, N 2 , O 2 , CO 2 , a noble gas, H 2 ; NO 2 , NO, N 2 O; fluorocarbons and in particular perfluorocarbons, such as CF 4 ; CF 3 I, SF 6 ; and mixtures thereof.
  • a background gas or carrier gas different from the organofluorine compound in particular different from the fluoroether, the oxirane, the fluoroamine, the fluoroketone and the fluoroolefin
  • a background gas or carrier gas different from the organofluorine compound (in particular different from the fluoroether, the oxirane, the fluoroamine, the fluoroketone and the fluoro
  • the housing 10 encloses a contact assembly with two contact members 20, 30 which by means of a drive D can be moved relative to each other along the axis A.
  • the contact member 20 comprises in coaxial arrangement a centrally positioned arcing contact which is realized as a contact tulip 21, two insulating nozzles 40 and 50 and a heating volume 60 for storing arc-extinguishing gas.
  • the contact member 30 comprises a centrally positioned arcing contact which is realized as contact pin 31.
  • the contact tulip 21 is arranged downstream from a throat 42 of a flow duct 41 passing through the insulating nozzle 40 from left to right along the axis A and comprises an annulus of contact fingers 22 which are arranged largely parallel to the axis A.
  • the contact fingers 22 comprise free ends which form an annular tip section 23 of the contact tulip 21.
  • the contact fingers In a current-making position of the circuit breaker the contact fingers are elastically deformed and their free ends rest with contact force on a free end 32 of the contact pin 31.
  • the contact fingers 22 by means of their spring properties are forced to move inwardly, such that their free ends support each other.
  • the annular tip section 23 of the contact tulip 21 then forms a flexible nozzle throat 24 of a flow duct 25 which passes through the contact tulip 21 along the axis A.
  • the flow cross-section of the nozzle throat 24 is A 24 .
  • the insulating nozzles 40 and 50 are preferably manufactured of a polymer on the basis of a polytetrafluorethylene (PTFE).
  • the insulating nozzle 40 encircles the annular tip section 23 of the contact tulip 21 and together with the surrounding insulating nozzle 50 borders the ring-shaped heating volume 60 and a heating channel 61 which connects the heating volume 60 with an arcing zone Z that during the breaking of a current includes a switching arc S.
  • a flow duct 41 which forms a nozzle throat 42 of the insulating nozzle 40 and a flow duct 51 which forms a nozzle throat 52 of the insulating nozzle 50 border the arcing zone Z radially.
  • the flow cross-section of the nozzle throat 42 resp. 52 is A 42 resp. A 52 .
  • the housing 10 encloses one or more further components, like control valves, current terminals and nominal contacts.
  • the nominal contacts surround the insulating nozzles 40, 50, the contact tulip 21, the contact pin 31 and the heating volume 60.
  • the drive D moves the contact member 20 to the left.
  • the contact pin 31 which can be realized as a stationary or a as movable part passes the flow ducts 25, 41 and 51.
  • the switching arc S appears as soon as the contact tulip 21 and the contact pin 31 separate.
  • the switching arc S generates pressurized arcing gas in the arcing zone Z.
  • a flow of hot pressurized arcing gas L 0 (shown with dotted arrows) is guided via the heating channel 61 to the heating volume 60 in which the pressurized hot arcing gas is mixed with cool insulating gas and stored as arc-extinguishing gas.
  • the arc-extinguishing gas flow L 2 is guided oppositely through the flow channel 51 to the expansion room 11 and hereby passes the nozzle throat 52. Both arc-extinguishing gas flows L 1 and L 2 blow the switching arc S until the arc is extinguished and the current is broken.
  • the contact tulip 21 is arranged in the flow duct section 43. Furthermore, due to the predetermined diameter of the contact pin 31 the flow cross-section A 24 of the nozzle throat 24 is smaller than the flow cross-section A 42 of the nozzle throat 42.
  • the contact member 20 comprises a by-pass flow duct 44.
  • the by-pass flow duct 44 connects a part of the flow duct section 43 which is arranged between the annular tip section 23 of the contact tulip 21 and the nozzle throat 42 to a section of the flow duct 25 which is arranged downstream the nozzle throat 24.
  • the arc-extinguishing gas flow L 1 downstream the nozzle throat 42 splits into an partial arc-extinguishing gas flow L 11 which passes the nozzle throat 24 and a partial arc-extinguishing gas flow L 12 which passes the by-pass flow duct 44.
  • the sum of the flow cross-sections A 24 of the nozzle throat 24 and A 44 of the by-pass flow duct 44 is larger than the flow cross-section A 42 of the nozzle throat 42. This ensures a quick removal of the hot arcing gas from the flow duct section 43 resp. from the arcing zone Z.
  • Fig.1 shows that the arc-extinguishing gas flow L 11 passes the flow duct 25. Due to an axially aligned mechanical force F 1 the arc-extinguishing gas flow L 11 moves a root of the switching arc S which is attached to the contact tulip 21 downstream in a section of the flow duct 25 which joins the nozzle throat 24. Fig.1 further shows a swirl chamber 70 comprising means for creating a predominantly circumferentially aligned force F 2 for moving the root of the switching arc S.
  • the root of the switching arc S is forced to attach downstream and to rotate circumferentially on the inner wall of the contact tube 21.
  • the column of the switching arc S rotates around the axis A and stabilizes a loop L which elongates the length of the arc. This enhances the cooling and the resistance of the switching arc S and thus the interruption performance of the circuit breaker.
  • the predominantly circumferentially aligned force F 2 is a mechanical force which is caused by a flow L 120 of predominantly circumferentially aligned arc-extinguishing gas.
  • the flow L 120 passes the swirl chamber 70 from the by-pass duct 44 to the interior of the contact tulip 21 and together with the axially aligned gas flow L 11 induces a spirally wound swirl flow SF which is shown in figures 2 to 6 .
  • Such a predominantly circumferentially aligned force F 2 can also be an electromagnetic force caused by an external magnetic field of a current coil or of a permanent magnet applied to the switching arc S.
  • the swirl chamber 70 comprises eight slits 71. These slits are arranged in a tubular wall of the contact tube 21 and connect the by-pass flow duct 44 to the interior of the contact tulip 21.
  • the slits 71 are predominantly extended along the axis A and open out into the interior of the contact tulip 21 with an outlet 72 that is inclined with respect to the radius R of the tubular wall with an angle ⁇ .
  • the slits 71 are inclined with a constant angle ⁇ against the radius R.
  • the outlet 72 comprises the inclination angle ⁇ and the gas flow L 12 enters the interior of the swirl chamber 70 with the inclination angle ⁇ .
  • typical values of the angle ⁇ range between 30° and 90°.
  • the swirl flow SF moves the arc root attached to the inner wall of the contact tulip 21 and drives the switching arc S to the axis A. Furthermore, the arc attachment only occurs far downstream the tip of the contact tulip 21 facing the nozzle throat 42 of the insulating nozzle 40.
  • the movement of the root and of the switching arc S can be controlled with the magnitude of the flow component L 120 in comparison to the magnitude of the gas flow L 11 .
  • the swirl flow SF comprises a suction effect and stabilizes the switching arc S centrally to the axis A.
  • the rotation of the root always leads to a movement of the root and also of the switching arc S and causes an efficient cooling of the arc and thus to an improved switching performance.
  • Fig.3 show that the slits 71 extend to an end face of the annular tip section 23 of the contact tulip 21 which according to fig.1 faces the nozzle throat 42 of the insulating nozzle 40.
  • the annular tip section 23 forms the flexible nozzle throat 24 and extends from the afore-defined end face somewhat downstream the nozzle throat 24.
  • the flow cross-section of the section of the slits 71 positioned in the annular tip section 23 is somewhat smaller than the flow cross-section A 24 of the flexible nozzle throat 24.
  • the swirl chamber 70 then extends from the end face of the annular tip section 23 of the contact tulip 21 downstream.
  • the swirl flow SF is formed in and downstream the nozzle throat 24.
  • the flow cross-section of a section of the slits 71 positioned in the annular tip section 23 is negligible with respect to the flow cross-section A 24 of the flexible nozzle throat 24.
  • the negligible flow cross-section of the slits 71 in the annular tip section 23 avoids nearly any gas flow in the annular tip section 23 and thus avoids the formation of the swirl flow SF in the nozzle throat 24.
  • the swirl chamber 70 is arranged downstream the nozzle throat 24 and the swirl flow SF is formed only downstream the nozzle throat 24.
  • annular tip section 23 is surrounded with a gas-tight jacket 73.
  • a jacket forms an axially aligned gas flow L 110 which assists the gas flow L 11 in driving the root of the switching arc S into the swirl chamber 70.
  • an electric insulating layer is arranged downstream from the flexible nozzle throat 24 on an inside surface of the contact tulip 21.
  • Such an insulating layer is shown in figures 5 and 6 and is marked with the reference sign 74.
  • the electric insulating layer 74 axially extends from a diverging section 26 to a tubular section 27 of the flow duct 25.
  • the diverging section 26 joins the flexible nozzle throat 24 and the tubular section 27 joins the diverging section 26.
  • the layer 74 prevents the root of the switching arc S to stay on the nozzle throat 24 of the flow duct 25 and ensures a sufficient axial extension of the arc and thus an effective interaction of the swirl flow SF and the switching arc S within the swirl chamber 70.
  • the electric insulating layer 74 axially extends downstream from the diverging section 26 only on the tubular section 27.
  • the layer 74 then ensures the attachment of the root within the flow duct 25 only somewhat downstream the nozzle throat 24 and thus ensures the formation of a maximized loop L of the switching arc S.
  • the interaction between the switching arc S and the swirl flow (not shown) in the swirl chamber 70 is then also very effective.
  • a further electric insulating layer 74' extends upstream from the flexible nozzle throat 24 to an outside surface of the annular tip section 23 of the contact tulip.
  • Fig.7 shows an embodiment of the circuit breaker according to the invention in which the swirl chamber 70 comprises a guide arrangement for controlling the swirl flow.
  • a guide arrangement comprise preferably blades 75 which are arranged on an inner surface of the swirl chamber 70 and which force the gas flow L 120 to enter the swirl chamber 70 with the afore-defined specific angle ⁇ .
  • the control function of the guide arrangement can also be achieved with slits 71' whose inclination is varied from the outer to the inner surface of the swirl chamber 70.
  • Fig.8 shows an embodiment of the circuit breaker according to the invention in which a contact tulip 33 with a flow duct 34 and a flexible nozzle throat 35 is arranged in the section 53 of the flow duct 51 of the insulating nozzle 50 and in which a by-pass flow duct 54 connects a part of the flow duct section 53 which part is arranged between a tip of the contact tulip 33 and the nozzle throat 52 to a section of the flow duct 34 which is arranged downstream the nozzle throat 35.
  • the arc-extinguishing gas flow L 2 downstream the nozzle throat 52 splits into an partial arc-extinguishing gas flow L 21 which passes the nozzle throat 35 and a partial arc-extinguishing gas flow L 22 which passes the by-pass flow duct 54.
  • the sum of the flow cross-sections of the nozzle throat 35 and of the by-pass flow duct 54 is larger than the flow cross-section A 52 of the nozzle throat 52. This ensures a quick removal of the hot arcing gas from the flow duct section 53 resp. from the arcing zone Z.
  • the contact tulip 33 comprises a swirl chamber 80 with inclined slits which connect the by-pass flow duct 54 with the interior of the contact tulip 33.
  • the gas flow L 22 feeds a gas flow L 220 which passes the inclined slits and which enters the interior of the contact tulip 33 predominantly circumferentially aligned.
  • one of the two roots of the switching arc S is firstly attached to the end 32 of the contact pin 31.
  • the contact pin 31 passes the flexible nozzle throat 35 the afore-identified root displaces from the contact pin 31 to the contact tulip 33 and is attached on the inside of the contact tulip 33.
  • the axially aligned gas flow L 21 moves the root downstream as shown in fig.8 with an axially aligned force F 4 .
  • the gas flow L 220 acts with a predominantly circumferentially extended force F 3 on the root of the switching arc.
  • the root of the switching arc S is forced to attach downstream and to rotate circumferentially on the inner wall of the contact tube 33.
  • the column of the switching arc S rotates around the axis and stabilizes a loop which elongates the length of the arc. This enhances the cooling and the resistance of the switching arc S and thus the interruption performance of the circuit breaker additionally.
  • the swirl chamber 70 resp. 80 can also comprise inclined holes of preferably circular or elliptical design which form the predominantly circumferentially adjusted gas flow L 120 resp. L 220 .
  • the afore-mentioned gas flow can also be formed with a combination of inclined slits and inclined holes.

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  • Circuit Breakers (AREA)
EP13198479.1A 2013-12-19 2013-12-19 Gasisolierter Hochspannungsschutzschalter Withdrawn EP2887367A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13198479.1A EP2887367A1 (de) 2013-12-19 2013-12-19 Gasisolierter Hochspannungsschutzschalter

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Application Number Priority Date Filing Date Title
EP13198479.1A EP2887367A1 (de) 2013-12-19 2013-12-19 Gasisolierter Hochspannungsschutzschalter

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EP2887367A1 true EP2887367A1 (de) 2015-06-24

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017045811A1 (de) * 2015-09-18 2017-03-23 Siemens Aktiengesellschaft Mittel- oder hochspannungsschaltanlage mit einem gasdichten isolierraum
WO2018158440A1 (en) * 2017-03-02 2018-09-07 Abb Schweiz Ag High-voltage circuit breaker with improved robustness
WO2018177824A1 (en) * 2017-03-31 2018-10-04 General Electric Technology Gmbh A switching chamber for a gas-insulated circuit breaker comprising an optimized thermal channel
CN111630621A (zh) * 2017-12-20 2020-09-04 Abb电网瑞士股份公司 断路器以及执行电流分断操作的方法

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Publication number Priority date Publication date Assignee Title
US3417216A (en) * 1965-04-16 1968-12-17 Gen Electric Arc controlling electrodes for switches and gaps
GB1246175A (en) * 1969-02-14 1971-09-15 Reyrolle A & Co Ltd Improvements relating to contacts for electric circuit-breakers
US3891814A (en) * 1972-02-28 1975-06-24 Siemens Ag Apparatus for arc quenching
EP0228099B1 (de) 1985-12-03 1991-11-27 ABB SACE S.p.A. Lichtbogenschaltkammer, insbesondere für mit Flüssigkeit gelöschte Lastschalter
US5898149A (en) 1995-09-30 1999-04-27 Asea Brown Boveri Ag Power circuit-breaker
EP0836209B1 (de) 1996-10-09 2004-08-04 ABB Schweiz AG Leistungsschalter
EP1630841B1 (de) 2004-08-23 2010-10-06 ABB Technology AG Schaltkammer und Hochleistungsschalter
WO2013153110A1 (en) * 2012-04-11 2013-10-17 Abb Technology Ag Circuit breaker

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417216A (en) * 1965-04-16 1968-12-17 Gen Electric Arc controlling electrodes for switches and gaps
GB1246175A (en) * 1969-02-14 1971-09-15 Reyrolle A & Co Ltd Improvements relating to contacts for electric circuit-breakers
US3891814A (en) * 1972-02-28 1975-06-24 Siemens Ag Apparatus for arc quenching
EP0228099B1 (de) 1985-12-03 1991-11-27 ABB SACE S.p.A. Lichtbogenschaltkammer, insbesondere für mit Flüssigkeit gelöschte Lastschalter
US5898149A (en) 1995-09-30 1999-04-27 Asea Brown Boveri Ag Power circuit-breaker
EP0836209B1 (de) 1996-10-09 2004-08-04 ABB Schweiz AG Leistungsschalter
EP1630841B1 (de) 2004-08-23 2010-10-06 ABB Technology AG Schaltkammer und Hochleistungsschalter
WO2013153110A1 (en) * 2012-04-11 2013-10-17 Abb Technology Ag Circuit breaker

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017045811A1 (de) * 2015-09-18 2017-03-23 Siemens Aktiengesellschaft Mittel- oder hochspannungsschaltanlage mit einem gasdichten isolierraum
CN108028147A (zh) * 2015-09-18 2018-05-11 西门子公司 具有气密绝缘空间的中压或高压开关设备
US10373785B2 (en) 2015-09-18 2019-08-06 Siemens Aktiengesellschaft Switchgear with a gas-tight insulating space
WO2018158440A1 (en) * 2017-03-02 2018-09-07 Abb Schweiz Ag High-voltage circuit breaker with improved robustness
CN110402475A (zh) * 2017-03-02 2019-11-01 Abb瑞士股份有限公司 具有改进鲁棒性的高压电路断路器
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
WO2018177824A1 (en) * 2017-03-31 2018-10-04 General Electric Technology Gmbh A switching chamber for a gas-insulated circuit breaker comprising an optimized thermal channel
CN111630621A (zh) * 2017-12-20 2020-09-04 Abb电网瑞士股份公司 断路器以及执行电流分断操作的方法
CN111630621B (zh) * 2017-12-20 2024-04-02 日立能源有限公司 断路器以及执行电流分断操作的方法

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