EP0526296B1 - Disjoncteur à haute et moyenne tension à gaz de soufflage - Google Patents
Disjoncteur à haute et moyenne tension à gaz de soufflage Download PDFInfo
- Publication number
- EP0526296B1 EP0526296B1 EP92402038A EP92402038A EP0526296B1 EP 0526296 B1 EP0526296 B1 EP 0526296B1 EP 92402038 A EP92402038 A EP 92402038A EP 92402038 A EP92402038 A EP 92402038A EP 0526296 B1 EP0526296 B1 EP 0526296B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- volume
- ring
- tube
- piston
- 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
- 230000005484 gravity Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 description 10
- 229910018503 SF6 Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
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
-
- 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
Definitions
- the present invention relates to a circuit breaker usable in high or medium voltage of the type in which a gas with good dielectric properties such as sulfur hexafluoride SF6 provides insulation and is also used for blowing the arc.
- a gas with good dielectric properties such as sulfur hexafluoride SF6 provides insulation and is also used for blowing the arc.
- a circuit breaker of the aforementioned type represented in axial half-section in FIG. 1, and comprising for each phase, a cylindrical insulating envelope (1) filled with pressurized SF6 gas, a contact main stationary (2), a fixed arcing contact (3, 3A) and a movable assembly connected to an operating member and comprising a main movable contact (5.5A), a movable arcing contact (4, 4A) , a blowing cylinder (5) associated with a blowing nozzle (6) and cooperating with a first piston (13), a second piston (14) integral with the movable assembly and sliding in a second fixed cylinder (8B) with the end of which the first piston is disposed, the second piston having a large cross-section with respect to the cross-section of the blowing cylinder, the volume (V2) between the two pistons being associated with means (15) for setting in communication with low pressure drops with the arc zone, said second piston being pierced with or
- the arcing contact consists of a first end (4A) of a metal tube (4) coaxial with the casing of the circuit breaker, the second end (4B) of said tube being connected to the operating member.
- said second piston (14) being an annular piston external to said tube and integral with the latter, the means for establishing communication with low pressure losses being constituted by said tube (4) pierced with large openings (15) at its periphery, the interior of said tube being closed substantially in line with the second piston by a part (17).
- the first piston (13) is semi-mobile relative to the second cylinder (8B) and carries a slide (11); the slide (11) can take two extreme positions in which it obstructs or releases openings (10) of the second cylinder (8B) opening into the volume contiguous to the envelope (1).
- the second piston (14) carries a valve (16) subject to closing when the pressure on the face of the second piston located on the side of the arc zone is greater than the pressure on the other face.
- An object of the present invention is to simplify the construction of the circuit breaker and to lighten the moving assembly; this can be done by removing the slider mentioned above. But it must be able to retain its function which is to avoid overpressures which may occur, when the circuit breaker is reset, in the volume V2 between the first and the second piston. This problem is solved by means of a ring which takes advantage of the inertia to keep closed, on tripping of the circuit breaker, openings connecting the volume V2 and the volume V0 contiguous to the envelope, and to open these openings when the circuit breaker is reset.
- the invention therefore relates to a circuit breaker according to claim 1.
- the ring moves from the second position to the first position by gravity.
- the ring moves from the second position to the first position under the action of a spring disposed inside the ring and bearing on a fixed part of the circuit breaker.
- the race of the ring is limited by a stud secured to the ring and engaging in a slot made in a fixed part of the circuit breaker.
- the openings can be made in the second cylinder, the ring then sliding in this second cylinder.
- the openings may alternatively be made in the tube constituting the movable arcing contact; the ring then slides inside this tube.
- the circuit breaker of Figure 2 differs from that of Figure 1 in that the slider 11 has been removed; this deletion causes that the part 11B which serves as a guide, the seal 12 and the valve 13.
- the piston is now a ring 13A provided with a unidirectional valve 13B which opens when the pressure in the volume V2 becomes greater than that prevailing in the blowing volume V1.
- the chimneys 10 of FIG. 1 are deleted and replaced by simple openings 10A.
- the stop 14B which has not proved to be essential, has been eliminated.
- This ring has a sufficient width to close the orifices 10A when the circuit breaker is in the on position (position shown in FIG. 2) and a diameter close to the inside diameter of the tube 8B; the ring carries spherical bosses 40A and 40B to slide with gentle friction inside the tube 8B.
- the ring carries millings 40C so as not to obstruct the holes 14C in the pistons 14 and which serve to limit the pressure exerted on this piston during the triggering maneuver.
- the ring is preferably made of steel
- the moving assembly is moved to the right of the figure, but, due to its inertia, the ring 40 remains practically stationary, ensuring the closing of the orifices 10A and thus allowing the pressure in the volume V3 to climb up to the limit set by the losses due to the small orifices 14C, and thus to assist in the triggering maneuver.
- the ring then falls on the piston 14 which has moved to the right in FIG. 2.
- the variant shown in Figure 3 relates to a circuit breaker with vertical or horizontal chamber.
- the openings 10A are eliminated; volume V3 is closed by a bottom 4F; 4D openings are made in the tube 4, to the right of the volume V2, to make this volume V2 communicate with the volume V4 inside the tube 4B and release the overpressure in this volume V2; to facilitate this evacuation, the closing disc 17 may have holes 17A.
- the volume V6 communicates with the volume Vo and with the volume V5 between the cylinders 4B and 8B.
- the orifices 4D cooperate with a ring 41 placed inside the tube 4, to which a slight projection 4E has been given to limit the stroke of the ring 41.
- FIG. 4 illustrates an alternative embodiment of the invention, usable for circuit breakers whose breaking chamber is arranged horizontally.
- the ring 42 is provided with an annular groove 42A in which is housed a low power spring 42B bearing on the one hand in the bottom of the housing 42A, on the other hand against the projection of the part 8.
- the ring carries a stud 42C engaging in a slot 8E of the tube 8B to limit the stroke of the ring 40.
- FIG. 4 can be applied to the ring of FIG. 3.
- the invention makes it possible to simplify the construction of circuit breakers while retaining the properties of tripping aid and energy saving on resetting.
Landscapes
- Circuit Breakers (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Pens And Brushes (AREA)
- Valve Device For Special Equipments (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Percussive Tools And Related Accessories (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Gas-Insulated Switchgears (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9109355A FR2679696B1 (fr) | 1991-07-24 | 1991-07-24 | Disjoncteur a haute et moyenne tension a gaz de soufflage. |
FR9109355 | 1991-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0526296A1 EP0526296A1 (fr) | 1993-02-03 |
EP0526296B1 true EP0526296B1 (fr) | 1995-11-02 |
Family
ID=9415478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92402038A Expired - Lifetime EP0526296B1 (fr) | 1991-07-24 | 1992-07-15 | Disjoncteur à haute et moyenne tension à gaz de soufflage |
Country Status (11)
Country | Link |
---|---|
US (1) | US5258589A (zh) |
EP (1) | EP0526296B1 (zh) |
JP (1) | JP2562098B2 (zh) |
CN (1) | CN1028392C (zh) |
AT (1) | ATE129829T1 (zh) |
BR (1) | BR9202835A (zh) |
CA (1) | CA2074433C (zh) |
DE (1) | DE69205757T2 (zh) |
DK (1) | DK0526296T3 (zh) |
ES (1) | ES2078699T3 (zh) |
FR (1) | FR2679696B1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007033170A1 (de) * | 2007-07-17 | 2009-01-22 | Volkswagen Ag | Bremsleuchte mit wenigstens einer Waschflüssigkeitsdüse |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111896067B (zh) * | 2020-08-05 | 2022-04-12 | 中车青岛四方车辆研究所有限公司 | 风缸、容积测量系统及容积测量方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55114942U (zh) * | 1979-02-09 | 1980-08-13 | ||
FR2575595B1 (fr) * | 1985-01-02 | 1987-01-30 | Alsthom Atlantique | Disjoncteur a haute tension a gaz comprime |
FR2619246B1 (fr) * | 1987-08-03 | 1989-11-17 | Alsthom | Disjoncteur a haute ou moyenne tension a gaz sous pression a energie de coupure prelevee sur celle de l'arc |
FR2641409B1 (fr) | 1989-01-02 | 1996-04-26 | Alsthom Gec | Disjoncteur a haute et moyenne tension a gaz de soufflage |
-
1991
- 1991-07-24 FR FR9109355A patent/FR2679696B1/fr not_active Expired - Fee Related
-
1992
- 1992-07-15 DE DE69205757T patent/DE69205757T2/de not_active Expired - Fee Related
- 1992-07-15 AT AT92402038T patent/ATE129829T1/de not_active IP Right Cessation
- 1992-07-15 EP EP92402038A patent/EP0526296B1/fr not_active Expired - Lifetime
- 1992-07-15 DK DK92402038.1T patent/DK0526296T3/da active
- 1992-07-15 ES ES92402038T patent/ES2078699T3/es not_active Expired - Lifetime
- 1992-07-22 CA CA002074433A patent/CA2074433C/fr not_active Expired - Fee Related
- 1992-07-23 BR BR929202835A patent/BR9202835A/pt not_active Application Discontinuation
- 1992-07-23 US US07/917,333 patent/US5258589A/en not_active Expired - Fee Related
- 1992-07-24 CN CN92108676.8A patent/CN1028392C/zh not_active Expired - Fee Related
- 1992-07-24 JP JP4198475A patent/JP2562098B2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007033170A1 (de) * | 2007-07-17 | 2009-01-22 | Volkswagen Ag | Bremsleuchte mit wenigstens einer Waschflüssigkeitsdüse |
Also Published As
Publication number | Publication date |
---|---|
JP2562098B2 (ja) | 1996-12-11 |
ATE129829T1 (de) | 1995-11-15 |
FR2679696B1 (fr) | 1993-09-24 |
CN1028392C (zh) | 1995-05-10 |
ES2078699T3 (es) | 1995-12-16 |
JPH05190065A (ja) | 1993-07-30 |
DE69205757D1 (de) | 1995-12-07 |
EP0526296A1 (fr) | 1993-02-03 |
CA2074433C (fr) | 1996-06-25 |
DE69205757T2 (de) | 1996-04-04 |
DK0526296T3 (da) | 1995-12-04 |
CN1068911A (zh) | 1993-02-10 |
CA2074433A1 (fr) | 1993-01-25 |
US5258589A (en) | 1993-11-02 |
BR9202835A (pt) | 1993-03-23 |
FR2679696A1 (fr) | 1993-01-29 |
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