EP2343721A1 - Commutateur à haute tension isolé du gaz - Google Patents

Commutateur à haute tension isolé du gaz Download PDF

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Publication number
EP2343721A1
EP2343721A1 EP10150168A EP10150168A EP2343721A1 EP 2343721 A1 EP2343721 A1 EP 2343721A1 EP 10150168 A EP10150168 A EP 10150168A EP 10150168 A EP10150168 A EP 10150168A EP 2343721 A1 EP2343721 A1 EP 2343721A1
Authority
EP
European Patent Office
Prior art keywords
volume
pressure relief
relief valve
insulating gas
expansion volume
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Withdrawn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
EP10150168A
Other languages
German (de)
English (en)
Inventor
Daniel Ohlsson
Martin Kriegel
Navid Mahdizadeh
Timo Kehr
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
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Priority to EP10150168A priority Critical patent/EP2343721A1/fr
Priority to CN2010106246312A priority patent/CN102117713A/zh
Priority to US12/983,035 priority patent/US20110163069A1/en
Publication of EP2343721A1 publication Critical patent/EP2343721A1/fr
Withdrawn legal-status Critical Current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
    • H01H33/88—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
    • H01H2033/906—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 with pressure limitation in the compression volume, e.g. by valves or bleeder openings
    • 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
    • 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
    • H01H33/91—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 the arc-extinguishing fluid being air or gas

Definitions

  • the present invention relates to a high voltage switch according to the preamble of claim 1.
  • a switch of the aforementioned type is generally a circuit breaker, which dominated in the voltage range of about 70 kV breaking currents of more than 10 kA.
  • Such a switch has a switch housing which is filled with an arc-containing insulating gas, such as based on sulfur hexafluoride and / or nitrogen and / or carbon dioxide, of generally up to a few bar pressure.
  • an arc-containing insulating gas such as based on sulfur hexafluoride and / or nitrogen and / or carbon dioxide, of generally up to a few bar pressure.
  • a arc zone receiving the switching arc is blown with quenching gas, which is generated by compression of insulating gas in a driven by the drive of the switch piston-cylinder compression device.
  • additional extinguishing gas stored in a heating volume is used, which is compressed as a result of the thermal effect of the switching arc.
  • the described switches each contain an insulating gas filled with an arc-quenching properties, a housing forming a storage space for the insulating gas, and a drive.
  • a housing forming a storage space for the insulating gas
  • a drive In the housing an actuatable by the drive contact arrangement and a heating volume and a frictionally coupled to the contact arrangement piston-cylinder compression device are arranged.
  • the heating volume and the Compression space of the compression device are connected to each other via a check valve and communicate with each other if the pressure in the compression chamber is higher than in the heating volume. If the pressure in the compression chamber exceeds a predetermined pressure limit, as is generally the case when a large short-circuit current is interrupted, then a pressure relief valve is activated, and compressed insulating gas is expanded from the compression space into the storage space after the response has been triggered.
  • the object is to provide a switch of the type mentioned, which is characterized by a good switching capability despite a weakly dimensioned drive.
  • the compression volume is small and can thus provide for interrupting a small current with a low driving force sufficient for successful thermal blowing of the switching arc amount of compressed, used as extinguishing gas insulating gas.
  • compressed insulating gas from the compression space communicates with the expansion volume above a response pressure of the first pressure relief valve holding the driving force at a low level.
  • a larger amount of extinguishing gas is then available when the driving force is kept low than when a small current is interrupted, and thus the arc zone can be successfully solidified dielectrically even when a large current is interrupted.
  • a second pressure relief valve may be provided.
  • the first expansion volume can be connected via the second pressure relief valve directly to the storage space.
  • the first expansion volume via the second pressure relief valve may be directly connected to a second expansion volume.
  • the second expansion volume can be connected via a third pressure relief valve directly to the storage space or with a third expansion volume.
  • At least two axially spaced cylinder barrels may be secured to a cylinder radially outwardly bounding the compression space, of which the first separates the compression space and the first extension volume and, together with the second cylinder base, determines the height of the first extension volume extended along the axis.
  • the first pressure relief valve and the second check valve may be held on the first cylinder bottom
  • a second pressure relief valve and the third check valve may be held on the second cylinder bottom.
  • At least one third cylinder bottom may be fastened to the hollow cylinder, which together with the second cylinder bottom determines the height of a second expansion volume which extends along the axis and holds a fourth check valve and an optionally provided third pressure relief valve.
  • FIGS. 1 to 3 Two embodiments of the high-voltage switch according to the invention are each designed as a circuit breaker and each contain a substantially tubular housing 10 and a housing 10 received, largely axially symmetrical contact arrangement with two along an axis A relative to each other sliding contact pieces 20 and 30th
  • the housing 10 is filled with a compressed insulating gas, such as based on sulfur hexafluoride or a gas mixture containing sulfur hexafluoride, thus forming a storage space 11 for the insulating gas.
  • a compressed insulating gas such as based on sulfur hexafluoride or a gas mixture containing sulfur hexafluoride, thus forming a storage space 11 for the insulating gas.
  • the contactor 20 has in coaxial arrangement a hollow arcing contact 21 and a hollow arcing contact surrounding the hollow rated current contact 22, whereas the contact piece 30 in a coaxial arrangement embodied as a pin arcing contact 31 and the arcing contact 31 surrounding hollow rated current contact 32.
  • the contact piece 20 is guided in a gas-tight manner along the axis A in a fixed, metal hollow body 40 and is connected via a hollow contact carrier 23 of the arcing contact 21 with an insulator, not shown, located at ground potential drive D of the switch.
  • the hollow body 40 includes an axially aligned, the rated current contact 22 coaxially comprehensive, fixed hollow cylinder 41 and two cylinder bottoms 42, 43 which are mutually axially offset on the inner wall of the hollow cylinder 41 are fixed.
  • a central opening is provided in the cylinder bottoms, in which the hollow contact carrier 23 of the arcing contact 21 is mounted gas-tight while maintaining its axial displaceability.
  • a metal sleeve 24 is fixed, which carries at its the switching piece 30 facing the end of an insulating material, such as PTFE, existing auxiliary nozzle 51.
  • This Isolieragisdüse surrounds the arc-free trained free end of the arcing contact 21.
  • the drive D facing the end of the sleeve 24 is formed as a radially outwardly guided wall 25.
  • At the outer edge of the wall 25 of the hollow cylindrical rated current contact 22 is arranged. This contact can be seen jointlessly connected to the outer edge of the wall, but can also be attached directly to the edge of the wall 25.
  • the switching piece 30 facing the end of the rated current contact 22 carries on its inside a typically PTFE-containing insulating nozzle 50, the bottleneck is closed by the arcing contact 31 when the switch is closed.
  • the sleeve 24, the wall 25, the rated current contact 22 and held in the rated current contact 22 end of the Isolierdüse 50 limit a heating volume H for receiving hot, ionized gas, which is generated by a resulting upon opening of the switch switching arc S.
  • the heating volume H communicates via a limited by the insulating nozzle 50 and the Hilfsisolierdüse 51 heating channel 52 with one of the constriction and the diffuser of the insulating nozzle 50 radially and the two open arcing contacts 21 and 31 axially limited, the switching arc S receiving arc zone L.
  • the rated current contact 22 slides gas-tight and electrically conductive in the hollow cylinder 41.
  • the hollow cylinder 41, the cylinder base 42, the contact carrier 23 and the wall 25 of the sleeve 24 therefore limit a compression space K of a piston-cylinder compression device with one of the parts 41 and 42 fixed hollow cylinder and one of the parts 23 and 25 formed and moved by the drive D piston.
  • the compression chamber K communicates via a arranged in the wall 25 check valve RV 1 with the heating volume H, if the pressure in the compression chamber K is equal to or higher than in the heating volume H.
  • the switch according to FIGS. 1 and 2 acts as follows: Is the switch - as in the left half of Fig.1 respectively. Fig.2 shown - closed, the check valves RV 1 , RV 2 and RV 3 are open: Therefore, communicate the heating volume H, the compression space K and the expansion volume E 1 with storage space 11 and these spaces are filled with fresh insulating gas.
  • the two switching pieces 20, 30 separate and forms between the two arcing contacts 21, 31 a burning in the arc zone L switching arc S.
  • the heating power of the switching arc S is generally insufficient to be able to interrupt the current successfully.
  • the pressure built up by the switching arc S in the heating volume H is then too small to successfully blow through the switching arc S with the quenching gas present in the heating volume at the zero crossing of the current to be disconnected and thus be able to interrupt the current.
  • a sufficiently high pressure is generated by means of the piston-cylinder compression device.
  • the size of the compression space K decreases when turned off due to the downward movement of the contact carrier 23 and the associated, formed by the wall 25 and the contact carrier 23 piston. This reduction is also achieved if, when switched off by a drive D 'in the switching piece 30 initiated force is transmitted via a connected to the switching piece 30 and the insulating nozzle 50 deflection gear on the contact piece 20.
  • the pressure buildup of the quenching gas by mechanical forces depends on the size of the compression chamber K.
  • D At a given stroke of the piston of the compression device resp. of the drive D, D 'and for a given size of the heating volume H thus builds a higher pressure in the quenching gas when using a small sized compression chamber K than when using a larger compression space K. Since the successful interruption of a small current only a small Amount of sufficient compressed extinguishing gas is required, the size of the compression space K can be kept relatively small.
  • the overpressure valve OV 1 opens. After opening communicates the compression chamber K via this pressure relief valve with the expansion volume E 1 , thus limiting the pressure in the compression chamber K.
  • the compressed insulating gas flowing from the compression chamber K into the expansion volume E 1 increases the insulating gas pressure in the expansion volume E 1 and ensures that the check valve RV 3 closes.
  • the pressure in the heating volume H drops.
  • the check valve RV 1 opens as soon as the pressure in the compression chamber K and in the expansion volume E 1 communicating therewith is greater than the pressure in the heating volume H.
  • Compressed extinguishing gas now flows out of the compression space K enlarged by the expansion volume E 1 over the heating volume H and the heating channel 52 into the arc zone L. Quantity, pressure and quality of the thus provided extinguishing gas sufficient to cool the switching arc S at the zero crossing of the current by blowing sufficiently strong and thus successfully interrupt the large current.
  • the expansion volume E 1 therefore increases the relatively small volume of the compression space K optimized for switching off small currents when switching a large current current. Since this extinguishing gas is achieved by the large volume of the enlarged by the expansion volume E 1 compression space K and not by an excessively high pressure in the compression chamber K, a retroactive on the drive high pressure is avoided. In addition, it is thus avoided that when interrupting a large current compressed insulating gas from the compression chamber K is guided directly into the storage space 11.
  • the drive of the switch can therefore be dimensioned advantageously smaller than in a switch according to the prior art.
  • the pressure relief valve OV 2 limits the pressure in the expansion volume E 1 If this pressure exceeds a predetermined response value, which is typically equal to or slightly greater than the corresponding response value of the pressure relief valve OV 1 , it opens. After opening, the expansion volume E 1 communicates directly with the storage space 11 and thus limits the pressure in the compression space K.
  • a cylinder base 44 is additionally attached to the hollow cylinder 41, which together with the cylinder bottom 43, the aligned along the axis A height an expansion volume E 2 determined.
  • a check valve RV 4 and a pressure relief valve OV 3 are arranged in the cylinder bottom 44.
  • the pressure in the expansion volume E 1 a predetermined set pressure, opens - as in the right half of the Figure 3 is shown - also the pressure relief valve OV 2 . After opening this valve, the expansion volume E 1 communicates with the expansion volume E 2 and thus limits the pressure in the expansion volume E 1 . At the same time, the compressed insulating gas flowing into the expansion volume E 2 increases the insulating gas pressure in the expansion volume E 2 and ensures that the check valve RV 4 closes.
  • the response pressure of the pressure relief valve OV 2 is generally equal to the response value of the pressure relief valve OV. 1
  • an additional amount of extinguishing gas can be provided.
  • the overpressure valve OV 3 limits the pressure in the expansion volume E 2 . If this pressure exceeds a predetermined response value, which is typically equal to or slightly greater than the corresponding response value of the overpressure valve OV 2 , it opens. After opening, the expansion volume E 2 communicates directly with the storage space 11 or with an optionally provided further expansion volume and thus limits the pressure in the expansion volume E 2 .
  • the pressure relief valves OV 1 , OV 2 , OV 3 may have different response pressures, so that depending on the current strength or pressure build-up in the heating volume H resp. so that depending on the prevailing conditions when interrupting the current to be disconnected successively a different number of expansion volumes can be switched on.
  • the compression space K and the expansion volume E 1 respectively.
  • at least a first of the extension volumes may be coaxial with the compression space K and / or a second one of the extension volumes include.
  • the lying between the adjoining rooms, such as K and E 1 , valves, eg RV 2 and OV 1 can then be arranged in an axially aligned wall, for example, the hollow cylinder 41.

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  • Circuit Breakers (AREA)
EP10150168A 2010-01-06 2010-01-06 Commutateur à haute tension isolé du gaz Withdrawn EP2343721A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10150168A EP2343721A1 (fr) 2010-01-06 2010-01-06 Commutateur à haute tension isolé du gaz
CN2010106246312A CN102117713A (zh) 2010-01-06 2010-12-31 气体绝缘高压开关
US12/983,035 US20110163069A1 (en) 2010-01-06 2010-12-31 Gas-insulated high-voltage switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10150168A EP2343721A1 (fr) 2010-01-06 2010-01-06 Commutateur à haute tension isolé du gaz

Publications (1)

Publication Number Publication Date
EP2343721A1 true EP2343721A1 (fr) 2011-07-13

Family

ID=42112256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10150168A Withdrawn EP2343721A1 (fr) 2010-01-06 2010-01-06 Commutateur à haute tension isolé du gaz

Country Status (3)

Country Link
US (1) US20110163069A1 (fr)
EP (1) EP2343721A1 (fr)
CN (1) CN102117713A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3840005A1 (fr) * 2019-12-20 2021-06-23 ABB Power Grids Switzerland AG Interrupteur à piston à deux voies

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2686859B1 (fr) * 2011-03-17 2014-11-26 ABB Technology AG Disjoncteur haute tension à isolation dans le gaz
DE102011083594A1 (de) * 2011-09-28 2013-03-28 Siemens Aktiengesellschaft Leistungsschalterunterbrechereinheit
CN103000445B (zh) * 2012-12-07 2015-10-14 益和电气集团股份有限公司 降低断路器操作功的弹性释压***
EP3404689B1 (fr) * 2017-05-19 2023-08-16 General Electric Technology GmbH Disjoncteur comprenant une chambre de compression améliorée
HUE050927T2 (hu) * 2017-06-20 2021-01-28 General Electric Technology Gmbh Elektromos nagyfeszültségû megszakító
EP3503152B1 (fr) * 2017-12-22 2020-10-14 ABB Power Grids Switzerland AG Disjoncteur haute ou moyenne tension isolé au gaz
EP3503153B1 (fr) 2017-12-22 2021-09-01 ABB Power Grids Switzerland AG Disjoncteur haute ou moyenne tension isolé au gaz
EP3806252B1 (fr) * 2018-05-24 2024-06-05 Mitsubishi Electric Corporation Appareil de commutation à isolation gazeuse
CN114420482B (zh) * 2022-01-06 2023-12-08 平高集团有限公司 一种隔离动触头组件及具有隔离断口的高压开关设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694987A1 (fr) * 1992-08-21 1994-02-25 Alsthom Gec Disjoncteur à haute tension ayant une chambre de coupure à volume de soufflage variable.
EP0766278A2 (fr) * 1995-09-30 1997-04-02 Asea Brown Boveri Ag Disjoncteur
DE29706202U1 (de) * 1997-03-27 1997-06-05 Siemens AG, 80333 München Druckgasleistungsschalter
DE19910166A1 (de) * 1999-02-24 2000-09-21 Siemens Ag Hochspannungsleistungsschalter mit einer Kompressionseinrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438635A1 (de) * 1984-09-26 1986-04-03 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
CN1008415B (zh) * 1985-09-30 1990-06-13 Bbc勃朗勃威力有限公司 气吹开关
FR2720188B1 (fr) * 1994-05-19 1996-06-14 Gec Alsthom T & D Sa Disjoncteur à autocompression réduite.
EP0741399B1 (fr) * 1995-05-04 1999-01-20 ANSALDO INDUSTRIA S.p.A. Interrupteur haute tension à gaz diélectrique du type à auto soufflage
FR2748598B1 (fr) * 1996-05-13 1998-06-05 Gec Alsthom T & D Sa Disjoncteur a haute tension a auto-soufflage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694987A1 (fr) * 1992-08-21 1994-02-25 Alsthom Gec Disjoncteur à haute tension ayant une chambre de coupure à volume de soufflage variable.
EP0766278A2 (fr) * 1995-09-30 1997-04-02 Asea Brown Boveri Ag Disjoncteur
DE29706202U1 (de) * 1997-03-27 1997-06-05 Siemens AG, 80333 München Druckgasleistungsschalter
DE19910166A1 (de) * 1999-02-24 2000-09-21 Siemens Ag Hochspannungsleistungsschalter mit einer Kompressionseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3840005A1 (fr) * 2019-12-20 2021-06-23 ABB Power Grids Switzerland AG Interrupteur à piston à deux voies

Also Published As

Publication number Publication date
CN102117713A (zh) 2011-07-06
US20110163069A1 (en) 2011-07-07

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