EP0239068B1 - Disjoncteur à gaz diélectrique sous pression - Google Patents
Disjoncteur à gaz diélectrique sous pression Download PDFInfo
- Publication number
- EP0239068B1 EP0239068B1 EP87104299A EP87104299A EP0239068B1 EP 0239068 B1 EP0239068 B1 EP 0239068B1 EP 87104299 A EP87104299 A EP 87104299A EP 87104299 A EP87104299 A EP 87104299A EP 0239068 B1 EP0239068 B1 EP 0239068B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stationary
- tubular assembly
- tube
- chamber
- assembly
- 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.)
- Expired - Lifetime
Links
Images
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
- H01H33/903—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 and assisting the operating mechanism
Definitions
- the present invention relates to a pressurized dielectric gas circuit breaker as described in the preamble of one of the independent claims and comprising a thermal volume.
- thermal volume denotes a volume whose gas heats up under the action of the cutting arc and whose pressure consequently increases.
- the thermal energy thus obtained is used to compress the blowing volume, thereby allowing a reduction in the energy required to operate the circuit breaker.
- a circuit breaker having a thermal volume and a blowing volume has been described in American patent N ° 4486632. But, in this circuit breaker, the hot gases of the thermal volume mix with the fresh gases of the blowing volume, and then reduce their power of 'extinction.
- blow-out piston circuit breaker surrounding the thermal volume.
- the hot gas To exert its action, the hot gas must travel a fairly long path before arriving in the blowing cylinder. The action of the hot gas is thus reduced and delayed.
- An object of the present invention is to provide a circuit breaker which does not have these drawbacks.
- reference 1 designates the axis of the circuit breaker.
- the latter comprises a sealed insulating envelope 2 filled with a dielectric gas such as sulfur hexafluoride, under a pressure of a few bars.
- a fixed assembly comprising a substantially tubular metal assembly 3 connected to a fixed block 4 electrically connected to an outlet not shown.
- the tube 3 has at its end a thinned part 6 terminated by an insulating part or made of metal resistant to the arc.
- the tube 3 is also provided at its end with a metal part 11 constituting the fixed main contact of the circuit breaker, and with an insulating blowing nozzle 12.
- the blowing volume 15 of the circuit breaker is delimited by a portion 3A of the external surface of the tube 3, by a semi-mobile cylinder 16 and by a ring 3B surrounding the tube 3 and forming a piston.
- the crown 3B and the tube 3 preferably constitute a single piece coming from machining.
- Seals 17 and 18 seal the volume 15 and guide the cylinder 16.
- the piston 3B therefore divides the cylinder 16 into two chambers, one constituting the blowing volume, the other reference 35.
- the chamber 35 is delimited by the cylinder 16, the piston 3B, the part 3 and the bottom of the cylinder 16A .
- the cylinder 16 is extended by an insulating cylindrical part 16B coming, when the circuit breaker is closed, in abutment with a cover 20 forming part of the movable assembly.
- the latter further comprises main contact fingers 21 and a tube 22 whose end 22A constitutes the movable arcing contact of the circuit breaker.
- the cover 20 and the fingers 21 are fixed to a ring 22B machined from the tube 22.
- the blowing volume 15 communicates with the arc zone by channels such as 30 formed in the thickness of the tube 3 and opening, on one side, into the annular space 31 comprised between the insulating portions 7 and 12 and, on the other side, in the volume 15 by openings 32 made in the piston 3B.
- the volume 35 communicates, through passages 36 made in the thickness of the tube 3 with the thermal volume 9. It is noted that the channels 30 and the passages 36 have no communication with each other, so that the hot gas of the thermal volume 9 and the fresh gas from the blowing volume 15 cannot mix.
- piston 3B is fitted with a 3D valve which does not allow the passage of gas only from the outside to the inside of the volume 15.
- the circuit breaker works as follows: In the engaged position ( Figure 1) the current flows through the block 4, the tube 3, the contacts 11 and 21 and the tube 22.
- Volume 15 is compressed and fresh gas is sent through channels 30 and volume 31 on arc A.
- the volume 15 has become zero.
- the gases escape through holes 3C and 22C.
- the 3D valve opens, making it easier to fill the blowing volume 15.
- FIG. 5 shows that the semi-mobile assembly can be placed on the mobile assembly.
- the elements common to this figure and to the preceding figures have been given the same reference numbers with the addition of a premium (') and the references of the fixed and mobile assemblies have been swapped.
- a fixed tube 41 serving as a stop for the semi-mobile equipment.
- the spring 25 then comes into abutment on a ring 22 'coming with the tube 22.
- Holes 3E, 41A and 3C are used to dissipate the gases after opening the circuit breaker.
- Figure 6 is an alternative embodiment in which the passages 36 are closed by valves such as 36A, opening only in the direction from volume 9 to volume 35. In this way the energy of thermal origin contained in the gas heated by the arc remains inside the volume 35 and is entirely used to assist in the compression of the volume 15. In addition, the hot gas does not disturb the blowing by the fresh gas.
- FIGS 7 to 9 illustrate an alternative embodiment of the invention.
- the elements common to these figures and to Figures 1 to 4 have been given the same reference numbers.
- the breaking chamber comprises an arcing contact 41, tubular and semi-mobile; semi-mobile means that the tube can make a certain displacement compared to the tube 3.
- the contact 41 compresses a spring 42, because it is pushed back by the movable contact 22.
- the contact 41 closes the thermal volume 9.
- contact fingers 43 which come to bear, with a slight pressure, on the tube 41. These fingers are mechanically and electrically secured to the fixed tube 3.
- the overpressure in the volume 9 is eliminated by the calibrated holes 45.
- the 3D valve opens making it easier to fill the volume 15.
- the valve 16C opens on tripping and allows, when cutting small currents, to avoid creating a vacuum in the volume generated for the movement of 16. In the event of a large current the overpressure due to the arc closes this valve.
- FIGS 10 to 12 illustrate an alternative embodiment of the invention.
- the breaking chamber comprises a fixed tube 50 connected by a block 51 to a socket, not shown.
- the tube is provided at its end opposite the block 51 with a portion 52 forming a fixed main contact and with a blowing nozzle 53.
- the tubes 50 and 54 delimit a thermal volume 56. This chamber is closed by an insulating part 57 defining with the nozzle an annular blowing channel 60.
- a semi-mobile cylinder 61 terminated by a bottom 62 surrounds the tube 50.
- the tube 61 slides in leaktight fashion on a first crown 50A (coming from molding or forging with tube 50).
- a spring 63 is disposed between the crown 50A and the bottom 62; the room delimited by the elements 50, 50A, 61 and 62 is designated by 64.
- a tubular insulating cover 65 extends the cylinder 61. It defines with the bottom 62 the tube 50 and a second ring 50B, a blowing chamber 66.
- the chamber 64 communicates with the thermal volume 56 by passages 67 made in the tube 50.
- the blowing chamber 66 communicates with the annular blowing channel through passages 68.
- the movable assembly comprises a tube 70, the end 70A of which constitutes the movable arcing contact and contact fingers 71 protected by a cover 72.
- the cover 72 cooperates with the cover 65 to ensure, when the circuit breaker is closed, the compression of the spring 63.
- circuit breaker The operation of the circuit breaker is identical to that described with reference to FIGS. 1 to 4.
- the thermal energy of the arc creates, in thermal volume 56, an overpressure which is transmitted from chamber 56 to chamber 64 and which is added to that of the spring. to compress the gas from the blowing chamber 66.
- a valve 62A opens, favoring the filling of the chamber 66.
- the invention applies to high voltage circuit breakers (greater than 45 kV) and to medium voltage.
Landscapes
- Circuit Breakers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8604393 | 1986-03-26 | ||
FR8604393A FR2596575B1 (fr) | 1986-03-26 | 1986-03-26 | Disjoncteur a gaz dielectrique sous pression |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0239068A1 EP0239068A1 (fr) | 1987-09-30 |
EP0239068B1 true EP0239068B1 (fr) | 1992-05-20 |
Family
ID=9333594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87104299A Expired - Lifetime EP0239068B1 (fr) | 1986-03-26 | 1987-03-24 | Disjoncteur à gaz diélectrique sous pression |
Country Status (11)
Country | Link |
---|---|
US (1) | US4774388A (es) |
EP (1) | EP0239068B1 (es) |
JP (1) | JP2571779B2 (es) |
CN (1) | CN1005877B (es) |
BR (1) | BR8701375A (es) |
DE (1) | DE3779159D1 (es) |
DK (1) | DK169157B1 (es) |
ES (1) | ES2031463T3 (es) |
FR (1) | FR2596575B1 (es) |
IE (1) | IE59598B1 (es) |
PT (1) | PT84574B (es) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0308626B1 (de) * | 1987-09-24 | 1993-03-10 | Licentia Patent-Verwaltungs-GmbH | Selbstblasschalter |
DE3810091A1 (de) * | 1988-03-25 | 1989-10-05 | Licentia Gmbh | Sf(pfeil abwaerts)6(pfeil abwaerts)-eindruckschalter |
JP2519713Y2 (ja) * | 1988-05-27 | 1996-12-11 | 株式会社明電舎 | ガス負荷断路器 |
FR2638564B1 (fr) * | 1988-11-02 | 1990-11-30 | Alsthom Gec | Disjoncteur a haute tension a gaz dielectrique sous pression |
DE58908837D1 (de) * | 1988-12-23 | 1995-02-09 | Licentia Gmbh | SF6-Eindruckschalter. |
FR2641409B1 (fr) * | 1989-01-02 | 1996-04-26 | Alsthom Gec | Disjoncteur a haute et moyenne tension a gaz de soufflage |
FR2647255B1 (fr) * | 1989-05-17 | 1993-04-23 | Alsthom Gec | Disjoncteur a haute tension a gaz dielectrique de soufflage |
FR2660792B1 (fr) * | 1990-04-04 | 1992-06-12 | Alsthom Gec | Disjoncteur a haute ou moyenne tension a contacts d'arc en bout. |
DE29509015U1 (de) * | 1995-05-24 | 1995-08-03 | Siemens AG, 80333 München | Hochspannungs-Leistungsschalter mit einem feststehenden Heizvolumen |
DE19547522C1 (de) * | 1995-12-08 | 1997-01-16 | Siemens Ag | Hochspannungs-Leistungsschalter mit einem Gasspeicherraum |
CN1057814C (zh) * | 1996-02-14 | 2000-10-25 | 胜利石油管理局井下作业公司 | 疏松砂岩地层的防砂工艺方法 |
FR2764728B1 (fr) * | 1997-06-12 | 1999-09-24 | Gec Alsthom T & D Sa | Disjoncteur a resistance de fermeture |
WO2007051320A1 (de) * | 2005-11-03 | 2007-05-10 | Abb Research Ltd | Selbstblasschalter mit gasvorkompression |
EP1826792B1 (de) * | 2006-02-28 | 2008-09-03 | ABB Research Ltd | Schaltkammer eines Hochspannungsschalters mit einem Heizvolumen zur Aufnahme von schaltlichtbogenerzeugtem Löschgas |
CN101828242B (zh) * | 2007-10-16 | 2013-03-13 | Abb研究有限公司 | 带有由溢流阀控制的减压通道的气体绝缘的高压功率开关 |
DE102008039813A1 (de) * | 2008-08-25 | 2010-03-04 | Siemens Aktiengesellschaft | Hochspannungs-Leistungsschalter mit einer Schaltstrecke |
FR2937179A1 (fr) * | 2008-10-09 | 2010-04-16 | Areva T & D Sa | Chambre de coupure pour disjoncteur haute tension a soufflage d'arc ameliore |
CN102945768B (zh) * | 2012-11-07 | 2015-04-22 | 中国西电电气股份有限公司 | 一种断路器灭弧装置 |
FR3008541B1 (fr) * | 2013-07-15 | 2015-08-21 | Alstom Technology Ltd | Disjoncteur a soufflage par effet piston optimise |
EP3039703B1 (de) * | 2013-08-28 | 2018-05-02 | ABB Schweiz AG | Gasisolierter hochspannungsschalter |
US10026571B1 (en) * | 2017-03-31 | 2018-07-17 | General Electric Technology Gmbh | Switching chamber for a gas-insulated circuit breaker comprising an optimized thermal channel |
CN109411288B (zh) * | 2018-11-20 | 2024-04-05 | 许继(厦门)智能电力设备股份有限公司 | 一种提高高压断路器断口绝缘性能的辅助结构 |
CN111725024B (zh) * | 2020-06-29 | 2022-10-18 | 西安西电开关电气有限公司 | 一种高压断路器及其灭弧室 |
CN111799128B (zh) * | 2020-07-17 | 2022-07-29 | 西安西电开关电气有限公司 | 一种压气缸系统及其大容量开关设备 |
CN112289628B (zh) * | 2020-10-20 | 2023-02-24 | 西安西电开关电气有限公司 | 一种双压力膨胀室灭弧室 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH600538A5 (es) * | 1976-04-22 | 1978-06-15 | Bbc Brown Boveri & Cie | |
DE2710051A1 (de) * | 1976-06-24 | 1978-01-05 | Sprecher & Schuh Ag | Druckgasschalter |
US4253002A (en) * | 1977-03-24 | 1981-02-24 | Mitsubishi Denki Kabushiki Kaisha | Self-extinguishing type circuit interrupter |
DE3265381D1 (en) * | 1981-06-12 | 1985-09-19 | Bbc Brown Boveri & Cie | High-voltage power circuit breaker |
FR2576142B1 (fr) * | 1985-01-16 | 1987-12-24 | Alsthom Atlantique | Disjoncteur a haute tension, a gaz comprime, a energie de manoeuvre assistee par l'effet thermique de l'arc |
FR2576143B1 (fr) * | 1985-01-16 | 1987-12-24 | Alsthom Atlantique | Disjoncteur a haute tension, a gaz comprime, a energie de manoeuvre assistee par l'effet thermique de l'arc et a double mouvement |
-
1986
- 1986-03-26 FR FR8604393A patent/FR2596575B1/fr not_active Expired
-
1987
- 1987-03-23 DK DK147987A patent/DK169157B1/da not_active IP Right Cessation
- 1987-03-24 EP EP87104299A patent/EP0239068B1/fr not_active Expired - Lifetime
- 1987-03-24 DE DE8787104299T patent/DE3779159D1/de not_active Expired - Fee Related
- 1987-03-24 CN CN87102963.4A patent/CN1005877B/zh not_active Expired
- 1987-03-24 ES ES198787104299T patent/ES2031463T3/es not_active Expired - Lifetime
- 1987-03-25 JP JP62071316A patent/JP2571779B2/ja not_active Expired - Fee Related
- 1987-03-25 IE IE77587A patent/IE59598B1/en not_active IP Right Cessation
- 1987-03-26 PT PT84574A patent/PT84574B/pt not_active IP Right Cessation
- 1987-03-26 US US07/030,304 patent/US4774388A/en not_active Expired - Lifetime
- 1987-03-26 BR BR8701375A patent/BR8701375A/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN87102963A (zh) | 1987-10-07 |
FR2596575A1 (fr) | 1987-10-02 |
DE3779159D1 (de) | 1992-06-25 |
US4774388A (en) | 1988-09-27 |
EP0239068A1 (fr) | 1987-09-30 |
BR8701375A (pt) | 1987-12-22 |
ES2031463T3 (es) | 1992-12-16 |
DK169157B1 (da) | 1994-08-29 |
DK147987A (da) | 1987-09-27 |
DK147987D0 (da) | 1987-03-23 |
JPS62234825A (ja) | 1987-10-15 |
JP2571779B2 (ja) | 1997-01-16 |
IE59598B1 (en) | 1994-03-09 |
PT84574B (pt) | 1989-11-30 |
IE870775L (en) | 1987-09-26 |
PT84574A (fr) | 1987-04-01 |
FR2596575B1 (fr) | 1988-05-20 |
CN1005877B (zh) | 1989-11-22 |
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