EP2593954A1 - Appareillage de chambre de coupure pour deux electrodes de contact confinees - Google Patents
Appareillage de chambre de coupure pour deux electrodes de contact confineesInfo
- Publication number
- EP2593954A1 EP2593954A1 EP11730684.5A EP11730684A EP2593954A1 EP 2593954 A1 EP2593954 A1 EP 2593954A1 EP 11730684 A EP11730684 A EP 11730684A EP 2593954 A1 EP2593954 A1 EP 2593954A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- collars
- electrodes
- openings
- contact
- continuous
- 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
Links
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 23
- 239000000969 carrier Substances 0.000 claims description 8
- 238000005304 joining Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 21
- 238000010891 electric arc Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910018503 SF6 Inorganic materials 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
-
- 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
- H01H33/91—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 switchgear apparatus for two confined contact electrodes, particularly in circuit breakers or switches for high voltage equipment.
- Many devices include an insulator cover joining to each other the contact carriers in which the contact electrodes slide and which surrounds these electrodes.
- a main function of this insulator cover is to maintain a good coaxiality of the electrodes and thus facilitate the opening and closing maneuvers contacts.
- Their use is particularly common with electrodes arranged on a horizontal axis, which the forces of gravity can bend.
- a known measure is to have openings at the back of the electrodes to evacuate the gases at overpressure too high that the electric arc produced at the opening of the contacts. The hot gases are then found in the volume surrounding the electrodes and around the hood.
- a primary object of the invention is to limit the heating of the electrodes during the ordinary service of the apparatus, the contacts being closed, despite the confinement of which the cover is responsible.
- the invention relates to a switchgear apparatus comprising two contact electrodes movable between a closed position and an open position, two contact carriers supporting the electrodes and a cover joining the contact carriers and surrounding portions view of the electrodes, the cover comprising a dielectric main portion and two collars connecting ends of the main portion to the contact-holders, characterized in that the collars are provided with openings communicating a volume inside the cover and an external volume surrounding the interior volume.
- the openings are formed through the collars, which can be made of conductive material easy to machine, allowing convection of the gas through the hood, and therefore a continuous renewal of the hot gas inside the hood by cooler external gas.
- the arrangement of the openings through the collars rather than the main portion of the cap confers marked advantages: the openings can be easily created in the collars, either by machining, the collars being often metallic, or from the manufacture of the collars , by molding or other method, if the collars are metal or polymeric or composite material, while maintaining sufficient mechanical strength through a greater freedom of design collars; while drilling the main portion of the hood, which seemed more appropriate since it is a thinner cylinder and overlooking the center of the confined volume, had actually resulted in greater disadvantages, since this main portion is the lowest of the hood , and that it is normally built in insulating fibers: its drilling would necessarily affect the mechanical strength of the hood as a whole, as well as its dielectric strength, the tips of the fibers cut by the
- the collars are for this purpose provided with continuous partitions extending in radially protruding, which separate the openings of neighboring volumes where the hot gases are released and thus shelter the openings: the volume surrounding the hood is almost not invaded by the hot gases, which therefore do not have the possibility of cross it.
- the invention can be improved in several other aspects. If the collars each comprise a support ring on the contact carriers and an inner support portion of the main portion of the cover, the continuous partitions being joined to the support rings and the openings extending between the continuous partitions and the inner portions. , an anterior socket can be joined to the continuous partition, surrounding the inner portion, the openings then also extending between the inner portion and the anterior socket: the anterior socket contributes to better shelter the openings, while promoting the holding dielectric of the apparatus.
- the inner portions are joined to the continuous partitions (by a separate means such as screws) and the openings extend between ribs established on the continuous partitions and on which the inner portions rest.
- Anterior bushings may include a rounded bead protruding toward the main portion of the bonnet at a free end.
- the contact carriers each comprise an outer edge defining a gas flow path from a recessed, posterior end of the electrodes, the curbs opening in front of the continuous walls, and the collars comprise a posterior socket joined to the continuous septum and surrounding one end of the outer curbs.
- the inner portions of the collars may further carry a field electrode, the field electrodes surrounding the contact electrodes and the openings also extending between the contact electrodes and the field electrodes.
- the openings extend to an angular portion of one of the collars and to an opposite angular portion to the previous one of the other collars.
- FIG. 1 illustrates a first embodiment of the invention in the open state of the contacts
- FIG. 2 a variant of this embodiment
- FIG. 3 a perspective view of a collar
- FIG. 1 and FIG. 4 a view of the invention in the closed state of the contacts.
- FIG. 1 and FIG. 4 are considered first.
- the breaking chamber comprises a moving contact electrode (1) and a fixed contact electrode (2) coaxial with the preceding one.
- the electrodes (1 and 2) are supported by fixed contact carriers (3 and 4) which comprise in particular sleeves (5 and 6) in which the electrodes (1 and 2) are engaged and which are provided with elastic strips (7). and 8) electrically connecting the electrodes (1 and 2).
- the entire apparatus is arranged in a tank, not shown.
- the gaseous content is generally SF6 sulfur hexafluoride or other highly dielectric gas.
- the electrodes (1 and 2) have outer contact portions (19 and 20), as well as internal contact portions (21 and 22) surrounded by the preceding ones, which remain in contact with each other longer than the previous ones at the opening. of the device and between which an arc (23) is caused to develop at the opening of the contacts.
- An arc-blowing nozzle (24) of dielectric material connects the electrodes (1 and 2) surrounds the inner contact portions (21 and 22) and confines the arc (23).
- the blowing of the arc (23) is provided by known means, for example by the expansion of the gas first contained in a chamber (25) compressed between a partition (26) of the sleeve (5) and the electrode ( 1) mobile, and which is projected in front of the electrode (1) towards the arc
- the centering of the electrodes (1 and 2) is provided by a cover (29) comprising a main portion (30) of cylindrical shape and two collars (31 and 32) respectively fixed to the contact-holders (3 and 4).
- the main portion (30) is dielectric, the collars (31 and 32) may be of conductive material; they are almost identical.
- Each of them comprises a support ring (33 or 34) making the connection to the sleeves (5 or 6), a continuous partition (35 or 36) flat and extending around the support ring (33 or 34), protruding beyond the main portion (30) radially (perpendicular to the axis of the electrodes (1 or 2)), an anterior bushing (37 or 38) cylindrical and extending from the outer edge of the partition continuous (35 or 36) towards the other collar (32 or 31), and a rear sleeve (39 or 40) also cylindrical and opposite to the previous one, extending from the outer edge of the continuous partition (35 or 36), and surrounding the end of the sleeve (15 or 16), which arrives not far from the partition (35 or 36).
- Ribs (41 or 42) - better visible in Figure 3 - standing on the continuous partitions (35 or 36) on the side of the anterior bushings (37) serve to support an inner portion (43 or 44) of the collars (31). or 32).
- the ends of the main portion (30) of the cover (29) are crimped into these inner portions (43 and 44).
- the cover (29) is unitary, screws (59 or 60) joining the inner portions (43 or 44) to the continuous partitions (35 or 36).
- the inner portions (43 or 44) each further support a field electrode (45 or 46), which surrounds the anterior end of the outer portion (19 or 20) of one of the contact electrodes (1 or 2) without the to touch.
- the field electrodes (45 and 46) are directed towards each other.
- the cover (29) is traversed by openings (47 or 48) which extend through each collar (31 or 32) and comprise first portions (49 or 50), between the continuous partition (35 or 36) and the inner portion (43 or 44), and between the ribs (41 or 42), a second portion (51 or 52) between the anterior sleeve (37 or 38) and the inner portion (43 or 44), and a third portion ( 53 or 54) at the end of the anterior bushing (37 or 38), at a beaded end, inwardly protruding (55 or 56) whose shape is rounded.
- the operation of the invention is as follows. When the contacts are closed, the gas contained in the hood (29) heats up and a convection occurs through the openings (47 and 48): the lighter hot gas leaves the interior volume (57) confined by the hood (29) through the upper openings, and gas from the outer volume (58) surrounding the hood (29) replaces it by the lower openings. A satisfactory ventilation of the electrodes (1 and 2) is thus obtained.
- the openings (47) of one of the collars (31) are located at the top, and the openings (48) of the other collars (32) are located at the bottom, or more generally the openings of the collars are placed only at opposite angular sectors on the circumferences of the collars (31 and 32), which imposes a diagonal path to the ventilation gas passing through the middle of the interior volume (57), and guarantees good ventilation.
- This variant can be realized by adding plugs (61 and 62) filling the sections of the other openings between the ribs (41 and 42).
- FIG. 2 represents the convection movement by the arrows (63), as well as the evacuation movements of the hot gases associated with the cutting of the electric arc by the arrows (64 and 65).
- the embodiment of FIG. convective movements symmetrical to those of the arrows (63).
- the collars (31 and 32) can be manufactured at low cost by molding aluminum.
- the openings (47, 48) are sized large enough to allow the desired convection flow rate.
- the sinuous shape of the openings is not particularly sought after but arises from the existence of the anterior bushings (37, 38) and the field electrodes (45, 46) in the illustrated embodiments; rectilinear openings could be chosen in the absence of these elements.
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1055800A FR2962847B1 (fr) | 2010-07-16 | 2010-07-16 | Appareillage de chambre de coupure pour deux electrodes de contact confinees |
PCT/EP2011/061818 WO2012007447A1 (fr) | 2010-07-16 | 2011-07-12 | Appareillage de chambre de coupure pour deux electrodes de contact confinees |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2593954A1 true EP2593954A1 (fr) | 2013-05-22 |
EP2593954B1 EP2593954B1 (fr) | 2015-03-11 |
EP2593954B2 EP2593954B2 (fr) | 2022-03-16 |
Family
ID=43608707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11730684.5A Active EP2593954B2 (fr) | 2010-07-16 | 2011-07-12 | Appareillage de chambre de coupure pour deux électrodes de contact confinées |
Country Status (6)
Country | Link |
---|---|
US (1) | US9524836B2 (fr) |
EP (1) | EP2593954B2 (fr) |
JP (1) | JP5784116B2 (fr) |
CN (1) | CN103109339B (fr) |
FR (1) | FR2962847B1 (fr) |
WO (1) | WO2012007447A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3001329B1 (fr) | 2013-01-24 | 2015-02-27 | Alstom Technology Ltd | Appareillage electrique a double mouvement de contacts comportant un dispositif de renvoi a deux leviers |
DE102013223632A1 (de) | 2013-11-20 | 2015-05-21 | Siemens Aktiengesellschaft | Schaltanordnung sowie Verfahren zur Montage einer Schaltanordnung |
EP2975710B1 (fr) | 2014-07-18 | 2017-09-06 | General Electric Technology GmbH | Disjoncteur comportant un tube creux isolant |
FR3030869B1 (fr) * | 2014-12-19 | 2017-02-10 | Alstom Technology Ltd | Disjoncteur comprenant un capot d'echappement de gaz a ouverture obturable |
JP6478836B2 (ja) * | 2015-06-29 | 2019-03-06 | 株式会社東芝 | ガス遮断器 |
CN106710952B (zh) * | 2017-02-23 | 2018-07-31 | 思源电气股份有限公司 | 具有改善重合闸故障电流开断性能的气体断路器 |
EP3407370B1 (fr) * | 2017-05-24 | 2020-04-01 | General Electric Technology GmbH | Interrupteur à gaz comprimé comprenant une chambre de stockage de gaz optimisée |
ES2929798T3 (es) * | 2017-06-29 | 2022-12-01 | Abb Schweiz Ag | Seccionador bajo carga aislado en gas y aparellaje que comprende un seccionador bajo carga aislado en gas |
CN109256290B (zh) * | 2018-10-11 | 2020-11-24 | 西安西电开关电气有限公司 | 双动开关设备及其断口传动装置 |
EP3840005B1 (fr) * | 2019-12-20 | 2022-09-21 | Hitachi Energy Switzerland AG | Interrupteur à piston à deux voies |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5362180A (en) | 1976-11-17 | 1978-06-03 | Tokyo Shibaura Electric Co | Single pressure type gas breaker |
US4393291A (en) * | 1979-10-12 | 1983-07-12 | Brush Switchgear Limited | Gas blast interrupters |
EP0069819B1 (fr) * | 1981-07-09 | 1987-04-29 | Sprecher Energie AG | Disjoncteur à gaz comprimé |
EP0075668B1 (fr) * | 1981-09-30 | 1987-01-07 | Sprecher Energie AG | Disjoncteur à gaz comprimé |
US4445018A (en) * | 1982-01-07 | 1984-04-24 | Mcgraw-Edison Company | Energy efficient floating head puffer interrupter |
US4663504A (en) * | 1983-04-11 | 1987-05-05 | Raychem Corporation | Load break switch |
JPS6379032U (fr) * | 1986-11-13 | 1988-05-25 | ||
US4841108A (en) * | 1987-11-06 | 1989-06-20 | Cooper Industries, Inc. | Recloser plenum puffer interrupter |
JP2507987Y2 (ja) | 1989-04-12 | 1996-08-21 | 株式会社東芝 | ガス遮断器 |
DE4103119A1 (de) * | 1991-01-31 | 1992-08-06 | Siemens Ag | Druckgasschalter |
JP2555076Y2 (ja) * | 1991-11-25 | 1997-11-19 | 日新電機株式会社 | パッファ形ガス遮断器 |
WO1995027300A1 (fr) * | 1994-04-05 | 1995-10-12 | Abb Power T & D Company Inc. | Ecran d'interstice destine a un rupteur mobile |
US5478980A (en) | 1994-04-05 | 1995-12-26 | Abb Power T&D Company, Inc. | Compact low force dead tank circuit breaker interrupter |
DE69507453T2 (de) * | 1995-05-04 | 1999-09-02 | Ansaldo Ind S P A | Hochspannungsschalter mit dielektrischem Gas mit Selbst-Beblasung |
DE29509015U1 (de) * | 1995-05-24 | 1995-08-03 | Siemens AG, 80333 München | Hochspannungs-Leistungsschalter mit einem feststehenden Heizvolumen |
DE19641550A1 (de) * | 1996-10-09 | 1998-04-16 | Asea Brown Boveri | Leistungsschalter |
JP4174094B2 (ja) * | 1998-01-29 | 2008-10-29 | 株式会社東芝 | ガス遮断器 |
DE19816505A1 (de) * | 1998-04-14 | 1999-10-21 | Asea Brown Boveri | Leistungsschalter |
US6495785B1 (en) | 2000-06-29 | 2002-12-17 | Abb Power T&D Company Inc. | Non-glue mounting of non-metallic tubes |
JP4218216B2 (ja) * | 2001-02-22 | 2009-02-04 | 株式会社日立製作所 | ガス遮断器 |
DE10125101A1 (de) * | 2001-05-23 | 2002-11-28 | Abb Patent Gmbh | Selbstblas-Löschkammer eines Hochspannungs-Leistungsschalters |
US20050045595A1 (en) * | 2003-09-03 | 2005-03-03 | Christian Daehler | Pressure-limiting valve for a puffer interrupter assembly |
EP1768150B1 (fr) | 2005-09-26 | 2010-02-17 | ABB Technology AG | Disjoncteur à haute tension avec pouvoir de coupure ameliorée |
US7333209B2 (en) | 2005-11-09 | 2008-02-19 | Honeywell International, Inc. | Fiber optic gyroscope asynchronous demodulation |
ATE407442T1 (de) * | 2006-02-28 | 2008-09-15 | Abb Research Ltd | Schaltkammer eines hochspannungsschalters mit einem heizvolumen zur aufnahme von schaltlichtbogenerzeugtem löschgas |
ATE457520T1 (de) * | 2006-12-06 | 2010-02-15 | Abb Research Ltd | Hochspannungsschalter mit einem isoliergasgefüllten metallbehälter |
EP2369608B1 (fr) | 2010-03-26 | 2012-08-29 | ABB Research Ltd. | Disjoncteur haute tension |
-
2010
- 2010-07-16 FR FR1055800A patent/FR2962847B1/fr active Active
-
2011
- 2011-07-12 US US13/805,930 patent/US9524836B2/en active Active
- 2011-07-12 WO PCT/EP2011/061818 patent/WO2012007447A1/fr active Application Filing
- 2011-07-12 CN CN201180035060.1A patent/CN103109339B/zh active Active
- 2011-07-12 EP EP11730684.5A patent/EP2593954B2/fr active Active
- 2011-07-12 JP JP2013519066A patent/JP5784116B2/ja active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012007447A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP5784116B2 (ja) | 2015-09-24 |
EP2593954B2 (fr) | 2022-03-16 |
CN103109339B (zh) | 2015-08-19 |
US20130126481A1 (en) | 2013-05-23 |
FR2962847A1 (fr) | 2012-01-20 |
CN103109339A (zh) | 2013-05-15 |
US9524836B2 (en) | 2016-12-20 |
FR2962847B1 (fr) | 2012-08-17 |
EP2593954B1 (fr) | 2015-03-11 |
JP2013534351A (ja) | 2013-09-02 |
WO2012007447A1 (fr) | 2012-01-19 |
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