EP0807946B1 - Disjoncteur à haute tension à auto-soufflage - Google Patents
Disjoncteur à haute tension à auto-soufflage Download PDFInfo
- Publication number
- EP0807946B1 EP0807946B1 EP97401034A EP97401034A EP0807946B1 EP 0807946 B1 EP0807946 B1 EP 0807946B1 EP 97401034 A EP97401034 A EP 97401034A EP 97401034 A EP97401034 A EP 97401034A EP 0807946 B1 EP0807946 B1 EP 0807946B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- gas
- fixed
- tube
- ring
- 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
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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
- H01H33/905—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 compression volume being formed by a movable cylinder and a semi-mobile piston
Definitions
- the present invention relates to a self-blowing circuit breaker comprising an envelope filled with a pressurized dielectric gas, two cooperating arcing contacts, one of which is part of a contact assembly mobile secured to an operating member and adapted to be moved axially in the envelope between a closed position and a position opening, the movable contact assembly comprising a first tube carrying its end the movable arcing contact and a second tube coaxial with the first tube, carrying at the end a permanent movable and delimiting contact, on both sides a crown connecting the first tube and the second tube, a blowing closed by a blowing nozzle and a compression chamber communicating with the blowing chamber and closed by a piston.
- Patent application FR 2 696 274 describes such a circuit breaker.
- the piston is semi-mobile and there is provided a means for immobilizing the piston during a first part of the movement of the movable contact assembly when the circuit breaker opens and a means to, on the contrary, drive axially this same piston during a second part of the displacement of this set.
- the means for axially driving the movable contact assembly to during this second part of the displacement is constituted by an organ drive integral with the movable contact assembly which causes a stop secured to the piston.
- This stop is arranged on the path of the organ training.
- the piston is held in a fixed position by a spring placed between the piston and the drive member and pushing the piston which is retained by a crown in abutment against a fixed member, the crown being integral with a tube itself secured to the piston.
- the organ drive slides in a lumen of the tube connecting the piston to the crown until it comes to a stop at the end of the resulting light, then the piston in the second part of the trip.
- the spring urging the semi-mobile piston causes a permanent effort on the control rod and causes a increase in the operating energy required.
- EP 0 126 929 describes a compressed gas switch according to the preamble of claim 1 having a slightly different structure in the sense that there is no second tube but an annular piston 12, linked to a tube 8, carrying a nominal current contact 5 and sliding directly into an external cylindrical housing 14.
- This arrangement ensures the automatic recoil of the free piston under the effect increase in pressure in the compression chamber at the time of the opening maneuver and thereby limits the increase in pressure, it thus brings the advantages of the semi-mobile piston of the first document cited in the introduction but without the control rod being subject to additional effort.
- the object of the invention is therefore to propose a circuit breaker having a structure as defined in the introduction, incorporating a free piston with its advantages but overcoming the drawback mentioned above.
- the subject of the invention is therefore a self-blowing circuit breaker comprising an envelope filled with a dielectric gas under pressure, two arcing contacts cooperating with each other, one of which is part of a fixed mobile contact assembly an actuator and adapted to be moved axially in the envelope between a closed position and an open position, the movable contact assembly comprising a first tube carrying to its end of the movable arcing contact and a second tube coaxial with the first tube, carrying at the end a permanent movable and delimiting contact, on both sides a crown connecting the first tube and the second tube, a blowing closed by a blowing nozzle and a compression chamber communicating with the blowing chamber and closed by a piston, characterized in that said annular piston located between the two said tubes is mounted at free sliding between a fixed front stop and a thrust spring, one of which end is supported on the piston and whose other end is in fixed support, this fixed support 18 being located on the other side of said front stop fixed relative to said arcing contacts, said piston comprising on the side
- Figures 1 to 6 partially show a circuit breaker according to the invention in its different positions during an opening maneuver, from the closed state in figure 1 to the complete opening in figure 6.
- Figure 7 is an enlarged view of a detail of the previous figures showing the piston with its recess and the ring, allowing damping when the piston returns.
- circuit breaker comprising an example is described.
- for each phase an insulating envelope.
- the invention applies also to earthed metal casing circuit breakers comprising a separate envelope for each phase or a single envelope for all three phases.
- reference 1 designates an envelope insulating, preferably porcelain, delimiting an expansion chamber 2 filled with a gas having good dielectric properties, for example hexafluoride of sulfur under a pressure of a few bars.
- the circuit breaker includes a fixed assembly and a contact assembly mobile.
- the fixed assembly includes an arcing contact 3 and a permanent contact fixed consisting of a circular series of fingers 4. These fixed arcing contacts 3 and permanent 4 are linked to a first socket 5.
- the movable contact assembly includes an operating part 6 insulation passing through chamber 2 and connected, at one of its ends, to a mechanism not shown. Its other end is linked to a whole metal of movable contacts comprising two coaxial tubes 7 and 8. These two tubes 7 and 8 are interconnected by a metal crown 9.
- the tube internal 7 carries the movable arcing contact 10 and the external tube 8 carries the contact mobile permanent 11 which cooperates, in the closed position of the circuit breaker such that shown in Figure 1, by its outer periphery with the fingers 4 of the contact permanent fixed.
- a nozzle blowing 12 made of insulating material.
- the space between the permanent movable contact 11, the arcing contact mobile 10, the crown 9 and the blowing nozzle 12 constitutes a blowing 13. Furthermore, the tubes 7 and 8, an annular piston 14 located between the two tubes, and the metal crown 9 define a compression chamber 15. This compression chamber 15 is separated from the blowing chamber 13 by the metal crown 9 fitted with one-way valves 16 authorizing the passage of gas from the compression chamber 15 to the blowing 13.
- Permanent contact fingers 17, linked to a bottom plate 18 connected to a second outlet not shown, are in electrical contact sliding with the outer tube 8.
- the annular piston 14 is mounted to slide freely between a stop fixed front and a thrust spring 19, one end of which bears on the piston and the other against the fixed bottom plate 18.
- the annular piston 14 also slides along three fixed tie rods 20 (only one is visible in the figures) whose head 21 serves as a fixed front stop for the piston 14.
- the fixed tie rods 20 are fixed to a fixed sleeve 22 linked to the plate bottom 18. This sleeve 22 guides the spring 19.
- the piston 14 is equipped with a valve 23 allowing the passage of the gas from the expansion chamber 2 towards the compression chamber 15 and not in the reverse. It also includes an annular recess 24 clearly visible on the Figures 3, 4 and 5.
- a floating ring 25 is housed at the bottom of this recess 24, pushed by the piston against a washer fixed 26, itself pressing against the head 21 of the tie rods 20.
- the floating ring 25 is pierced with three 120 ° holes for the passage tie rods and also orifices 27 interposed between the through holes of the tie rods 20.
- the floating ring 25 is mounted between the fixed washer 26 and a member rear retainer 28 constituting a flange of a barrel 29.
- This barrel 29 is immobilized axially on the tie rod 20 by a shoulder 30 of the tie rod and by the head 21 of the tie rod 20.
- the head 21 is actually a screw head tightening the fixed washer 26 and barrel 29 against the shoulder 30 of the tie rod 20.
Description
Claims (2)
- Disjoncteur à auto-soufflage comprenant une enveloppe (1) remplie d'un gaz diélectrique sous pression, deux contacts d'arc (3, 10) coopérant entre eux, l'un (10) faisant partie d'un ensemble de contact mobile solidaire d'un organe de manoeuvre (6) et adapté pour être déplacé axialement dans l'enveloppe entre une position de fermeture et une position d'ouverture, l'ensemble de contact mobile comprenant un premier tube (7) portant à son extrémité le contact d'arc mobile (10) et un second tube (8) coaxial au premier tube, portant en extrémité un contact permanent mobile (11) et délimitant, de part et d'autre d'une couronne (9) reliant le premier tube (7) et le second tube (8), une chambre de soufflage (13) fermée par une buse de soufflage (12) et une chambre de compression (15) communiquant avec la chambre de soufflage (13) et fermée par un piston (14), caractérisé en ce que ledit piston (14), annulaire et située entre les deux dits tubes (7, 8), est monté à coulissement libre entre une butée avant fixe (21) et un ressort de poussée (19) dont une extrémité prend appui sur le piston (14) et dont l'autre extrémité est en appui fixe, cet appui fixe (18) étant situé de l'autre côté de ladite butée avant fixe (21) par rapport aux dits contacts d'arc (3, 10) ledit piston comprenant du côté opposé à l'appui du ressort de poussée (19), un évidement annulaire (24) dans lequel est logée, en position d'appui du piston contre ladite butée avant, une bague (25), ladite bague étant montée flottante entre une rondelle fixe (26) solidaire de ladite butée avant (21) et un organe de retenu arrière (28) et étant percée d'au moins un orifice (27), obturé par ladite rondelle fixe (26) lorsqu'elle est en position de butée avant formant un clapet anti-retour permettant l'introduction de gaz dans ledit évidement (24) lors du recul du piston sous la pression du gaz dans ladite chambre de compression (15) lors d'une ouverture du disjoncteur, le mouvement avant de retour du piston sous la poussée dudit ressort de poussée (19) étant amorti par le matelas de gaz comprimé par ladite bague (25) pénétrant dans ledit évidement.
- Disjoncteur selon la revendication 1, caractérisé en ce que ledit piston (14) est monté coulissant sur des tirants fixes (20), liés audit appui fixe (18) du ressort de poussée (19), et dont la tête (21) sert de butée avant fixe pour ledit piston (14), et en ce que ledit organe de retenu arrière (28) de ladite bague flottante (25) est situé sur chaque tirant (20).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9605912A FR2748598B1 (fr) | 1996-05-13 | 1996-05-13 | Disjoncteur a haute tension a auto-soufflage |
FR9605912 | 1996-05-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0807946A1 EP0807946A1 (fr) | 1997-11-19 |
EP0807946B1 true EP0807946B1 (fr) | 2001-12-12 |
Family
ID=9492067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97401034A Expired - Lifetime EP0807946B1 (fr) | 1996-05-13 | 1997-05-07 | Disjoncteur à haute tension à auto-soufflage |
Country Status (7)
Country | Link |
---|---|
US (1) | US5898150A (fr) |
EP (1) | EP0807946B1 (fr) |
DE (1) | DE69708966T2 (fr) |
EG (1) | EG21480A (fr) |
ES (1) | ES2167691T3 (fr) |
FR (1) | FR2748598B1 (fr) |
PT (1) | PT807946E (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4174094B2 (ja) * | 1998-01-29 | 2008-10-29 | 株式会社東芝 | ガス遮断器 |
US6310311B1 (en) * | 1999-08-05 | 2001-10-30 | Gary Hakes | Integrated bushing component |
FR2799571B1 (fr) * | 1999-10-07 | 2001-12-21 | Schneider Electric High Voltag | Disjoncteur a autoexpansion a clapet de surpression et de remplissage |
FR2808618B1 (fr) | 2000-05-03 | 2002-06-14 | Alstom | Disjoncteur comportant, dans une enveloppe remplie d'un gaz dielectrique sous pression, un ensemble mobile |
EP1675145A1 (fr) * | 2004-12-23 | 2006-06-28 | ABB Technology AG | Disjoncteur à haute puissance avec joint contre les gaz d'arc |
FR2892851B1 (fr) * | 2005-11-03 | 2013-12-06 | Areva T & D Sa | Chambre de coupure de courant a double chambre de compression |
FR2922043B1 (fr) | 2007-10-03 | 2009-12-11 | Areva T & D Sa | Chambre de coupure de disjoncteur a double volume de compression |
KR101013709B1 (ko) * | 2008-12-03 | 2011-02-10 | 엘에스산전 주식회사 | 수배전반의 고속 투입 스위치 |
KR101309317B1 (ko) * | 2009-09-10 | 2013-09-30 | 엘에스산전 주식회사 | 가스 차단기용 밸브 및 그를 이용한 가스 차단기 |
EP2343721A1 (fr) * | 2010-01-06 | 2011-07-13 | ABB Research Ltd. | Commutateur à haute tension isolé du gaz |
CN102592876B (zh) * | 2012-03-01 | 2014-10-01 | 广东金晖隆开关有限公司 | 吹气灭弧负荷开关 |
KR102491405B1 (ko) * | 2016-08-26 | 2023-01-20 | 히타치 에너지 스위처랜드 아게 | 스위치 및 스위치를 분리하기 위한 방법 |
CN111199849B (zh) * | 2019-12-26 | 2021-12-17 | 河南平高电气股份有限公司 | 灭弧室的动触头组件及使用该动触头组件的动触头装配 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2696274A (en) * | 1953-06-15 | 1954-12-07 | Southern Lightweight Aggregate | Air and gas treatment system |
DE3127678A1 (de) * | 1981-07-14 | 1983-02-10 | BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau | Hochspannungs-leistungsschalter |
DE3141324C2 (de) * | 1981-10-17 | 1986-02-06 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | Leistungsschalter |
SE432321B (sv) * | 1982-08-16 | 1984-03-26 | Asea Ab | Elektrisk brytare med gasformigt sleckmedel |
DE3322597A1 (de) * | 1983-05-31 | 1984-12-06 | BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau | Druckgasschalter |
US4609798A (en) * | 1984-07-27 | 1986-09-02 | Alsthom | Means for assembling two enclosures of an electrical cutout apparatus |
FR2638564B1 (fr) * | 1988-11-02 | 1990-11-30 | Alsthom Gec | Disjoncteur a haute tension a gaz dielectrique sous pression |
SE466979B (sv) * | 1990-09-11 | 1992-05-04 | Asea Brown Boveri | Hoegspaenningsbrytare av sjaelvblaasande typ |
FR2696274B1 (fr) * | 1992-09-29 | 1994-11-04 | Alsthom Gec | Disjoncteur à haute tension à auto-soufflage ayant une chambre de coupure à compression de gaz réduite. |
AR029905A1 (es) * | 2000-04-05 | 2003-07-23 | Ods Properties Inc | Un metodo y una disposicion para reconocer un apostador |
-
1996
- 1996-05-13 FR FR9605912A patent/FR2748598B1/fr not_active Expired - Fee Related
-
1997
- 1997-05-07 DE DE69708966T patent/DE69708966T2/de not_active Expired - Fee Related
- 1997-05-07 EP EP97401034A patent/EP0807946B1/fr not_active Expired - Lifetime
- 1997-05-07 PT PT97401034T patent/PT807946E/pt unknown
- 1997-05-07 ES ES97401034T patent/ES2167691T3/es not_active Expired - Lifetime
- 1997-05-09 US US08/853,254 patent/US5898150A/en not_active Expired - Fee Related
- 1997-05-10 EG EG39997A patent/EG21480A/fr active
Also Published As
Publication number | Publication date |
---|---|
FR2748598B1 (fr) | 1998-06-05 |
EP0807946A1 (fr) | 1997-11-19 |
DE69708966T2 (de) | 2002-08-01 |
US5898150A (en) | 1999-04-27 |
DE69708966D1 (de) | 2002-01-24 |
PT807946E (pt) | 2002-05-31 |
ES2167691T3 (es) | 2002-05-16 |
FR2748598A1 (fr) | 1997-11-14 |
EG21480A (fr) | 2001-11-28 |
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