EP0359224A1 - Hochspannungsschalter mit gasförmigem Dielektrikum zum Beblasen - Google Patents
Hochspannungsschalter mit gasförmigem Dielektrikum zum Beblasen Download PDFInfo
- Publication number
- EP0359224A1 EP0359224A1 EP89116944A EP89116944A EP0359224A1 EP 0359224 A1 EP0359224 A1 EP 0359224A1 EP 89116944 A EP89116944 A EP 89116944A EP 89116944 A EP89116944 A EP 89116944A EP 0359224 A1 EP0359224 A1 EP 0359224A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- contact
- circuit breaker
- 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.)
- Granted
Links
- 238000005422 blasting Methods 0.000 title 1
- 238000007664 blowing Methods 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000011810 insulating material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910018503 SF6 Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000000926 separation method Methods 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
- H01H33/7007—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein the flow is a function of the current being interrupted
-
- 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 circuit breaker in which the breaking chamber is filled with dielectric gas, such as sulfur hexafluoride, and in which the energy of the arc is used, thanks to the increase in pressure it gives to gas, to reduce the energy required for cutting.
- dielectric gas such as sulfur hexafluoride
- the invention relates more particularly to a circuit breaker having a blowing cylinder and a second chamber in which an additional pair of contacts is capable of generating, when the circuit breaker is opened, a secondary arc used to help provide energy for the opening maneuver
- Such a circuit breaker is known for example from French patent No. 8701545.
- a problem to be solved in this type of circuit breaker is that the pressure remains low in the blowing cylinder for breaking small currents (low operating energy) and that the pressure is high for breaking large currents without increasing the maneuvering energy.
- the subject of the invention is a high-voltage circuit breaker with pressurized dielectric gas, of the type comprising at least one breaking chamber comprising an insulating envelope filled with said gas inside which are placed a fixed assembly comprising a fixed main contact and a fixed arcing contact, a movable assembly comprising in particular a movable main contact and a movable arcing contact, the breaking chamber further comprising a blowing cylinder opening into a blowing nozzle and a pair of secondary contacts, characterized in that said blowing cylinder is delimited by a first cylinder constituting the movable arcing contact, a second cylinder constituting the fixed main contact and a first piston sliding between said first and said second cylinder, said first piston being returned by a spring abutting against a part secured to the fixed assembly, the cylinder constituting the movable arcing contact and a tube linked to the fixed assembly and coaxial with the aforementioned cylinder delimiting, on the other side of the piston closing the blow cylinder, a variable volume
- FIG. 1 shows a breaking chamber comprising a casing 1, made of an insulating material such as ceramic, filled with a dielectric gas such as sulfur hexafluoride under a pressure of a few bars.
- a breaking chamber comprising a casing 1, made of an insulating material such as ceramic, filled with a dielectric gas such as sulfur hexafluoride under a pressure of a few bars.
- a dielectric gas such as sulfur hexafluoride under a pressure of a few bars.
- the movable assembly comprises a cylinder or tube 5, metallic, serving as a movable arc contact, terminated by a tip 5A made of an alloy resistant to the effects of the arc.
- the cylinder 5 is driven by a metal tube 6, for example made of aluminum, fixed to an operating rod, not shown. Tubes 5 and 6 are not attached to each other; on the contrary, a certain travel between them is possible; the drive is done by two steps 5B and 6B of the tubes 5 and 6. The travel is limited by a stop 6C.
- a metal tube 7, concentric with the cylinder 5, serves as a movable main contact.
- blowing nozzle 8 made of insulating material. It is in electrical contact with a metal block 9 made of aluminum for example, secured to the fixed assembly, by contact fingers 10.
- the cylinder 5 and the tube 7 are joined by an insulating ring 12, pierced with holes 12A.
- the volume 20 delimited by the tubes 5 and 7 is closed by a piston 14, made of an insulating material, for example polytetrafluoroethylene.
- the piston 14 is made semi-mobile relative to the fixed equipment. To this end, the piston 14 is integral with a portion of cylinder 15 terminated by a step 15A, which can slide along the inner wall of cylinder 7.
- the stroke of the cylinder is limited by a stop on one end 16A forming a step of a cylinder 16 fixed to the block 9.
- the piston 14 optionally comprises a valve 14A allowing the passage of gas only from the inside to the outside of the volume 20.
- the piston 14 comprises a seal 18 and a guide 19.
- a pair of auxiliary contacts includes: a fixed tubular contact 30, provided with an end 30A of arc-resistant material, and fixed to the tube 16, - a tubular contact 31, provided with a wear end 31A, fixed to a guide block made of insulating material 32, and provided with sliding contacts 31B cooperating with the tube 5.
- the insulating block is guided in the annular space between the tubes 5 and 16 thanks to a portion 32A coming to bear against the tube 16.
- This portion is provided with orifices 33 to allow the free passage of gas in the annular space 35 between the tube 16 and exhibits 31 and 32.
- the insulating part 32 is provided with a latching system, for example with balls 36 and springs 37, cooperating with grooves 38 and 39 formed in the tube 5.
- a stop 40 of the tube 16 limits the travel of the parts 31 and 32 .
- the annular space 35 is closed by an insulating piston 42, fixed to the tube 5 and having a guide segment 43 and a valve 44 allowing the passage of gas only from the outside to the inside of the volume 35.
- the tube 5 has holes 46 at its end.
- the tube 6 has holes 47.
- the part 9 carries a contact 48 cooperating with one end 49 of the tube 5 to place the tube 5 at the same potential as the rest of the moving assembly at the end of the opening stroke.
- the circuit breaker works as follows:
- the vacuum generated in the volume 35 causes the valve 44 to open and the pressure in the volume 35 to be maintained. There is therefore no loss of pneumatic energy by suction.
- the arc 60 which is established between the contacts 30 and 31 either at the same time as the arc 50, either slightly before or slightly after, creates an overpressure sufficiently low to not move the piston 14 relative to the stop 16A.
- the part 32A After a certain stroke, the part 32A abuts on the stop 40.
- the tube 5 continuing its stroke, the balls 36 leave the groove 39 and come to be positioned on the groove 38 (FIG. 3) at the end of the opening maneuver.
- the contact 48 puts the end 49 of the tube 5, and therefore the contact 31, at the potential of the part 9, of the tube 16 and therefore of the contact 30.
- the tube 6 is actuated to the left of the figure.
- the stop 6C drives the tube 5 and the contacts 30 and 31 come into contact, without creating an arc since they are at the same potential thanks to the contact of the parts 48 and 49.
- the slight overpressure in the volume 35 is evacuated, by the holes 46 and 47 which come into coincidence, towards the volume 70 inside the tube 5.
- Figure 4 shows the circuit breaker being opened by moving the tube 6 to the right of the figure.
- the very high intensity arc 60 causes rapid heating of the volume 35 and of the volume 35B surrounded by the contacts 30, 31, the piston 22 and the cylinder 5.
- the compression of the volume 20 then results not only from the displacement of the piston due to the movement of the movable element of the breaking chamber, but also from the relative displacement of the piston 14 relative to the movable element.
- the overpressure in the volume 35 causes the valves 14A and 44 to close.
- a second effect of the increase in pressure in volumes 35 and 35B is to exert a force on the insulating piston 42 and thus to make a contribution to the operating energy.
- the hot gas of volume 35 passes through the orifices 33 of the part 32A.
- the circuit breaker of the invention requires only a low operating energy for all the current values to be cut. For short-circuit currents, the blowing action is extremely energetic.
Landscapes
- Circuit Breakers (AREA)
- Burglar Alarm Systems (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Organic Insulating Materials (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89116944T ATE98811T1 (de) | 1988-09-16 | 1989-09-13 | Hochspannungsschalter mit gasfoermigem dielektrikum zum beblasen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8812115 | 1988-09-16 | ||
FR8812115A FR2639147B1 (fr) | 1988-09-16 | 1988-09-16 | Disjoncteur a haute tension a gaz dielectrique utilise pour le soufflage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0359224A1 true EP0359224A1 (de) | 1990-03-21 |
EP0359224B1 EP0359224B1 (de) | 1993-12-15 |
Family
ID=9370074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89116944A Expired - Lifetime EP0359224B1 (de) | 1988-09-16 | 1989-09-13 | Hochspannungsschalter mit gasförmigem Dielektrikum zum Beblasen |
Country Status (10)
Country | Link |
---|---|
US (1) | US4945197A (de) |
EP (1) | EP0359224B1 (de) |
JP (1) | JP2837188B2 (de) |
CN (1) | CN1018683B (de) |
AT (1) | ATE98811T1 (de) |
BR (1) | BR8904656A (de) |
CA (1) | CA1317619C (de) |
DE (1) | DE68911440T2 (de) |
ES (1) | ES2047078T3 (de) |
FR (1) | FR2639147B1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992011652A1 (de) * | 1990-12-24 | 1992-07-09 | Licentia Patent-Verwaltungs-Gmbh | Druckgasschalter |
FR2715499A1 (fr) * | 1994-01-25 | 1995-07-28 | Gec Alsthom T & D Sa | Disjoncteur à auto-soufflage à piston semi-mobile verrouillé pneumatiquement. |
EP1973133A2 (de) * | 2007-03-22 | 2008-09-24 | Korea Electro Technology Research Institute | Trennschalter unter Verwendung eines Kontaktbogens |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2647255B1 (fr) * | 1989-05-17 | 1993-04-23 | Alsthom Gec | Disjoncteur a haute tension a gaz dielectrique de soufflage |
FR2647949B1 (fr) * | 1989-05-31 | 1994-02-18 | Gec Alsthom Sa | Disjoncteur a haute tension a gaz dielectrique de soufflage |
FR2661549B1 (fr) * | 1990-04-25 | 1996-07-19 | Alsthom Gec | Disjoncteur a moyenne ou haute tension a contacts d'arc en bout. |
FR2756413B1 (fr) * | 1996-11-28 | 1998-12-31 | Gec Alsthom T & D Sa | Disjoncteur a piston semi-mobile |
FR2922043B1 (fr) * | 2007-10-03 | 2009-12-11 | Areva T & D Sa | Chambre de coupure de disjoncteur a double volume de compression |
CN101825894B (zh) * | 2010-04-30 | 2012-07-18 | 北京航空航天大学 | 一种六氟化硫高压断路器状态智能监测与健康管理系统 |
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 |
FR3039924B1 (fr) * | 2015-08-07 | 2019-05-10 | Supergrid Institute | Appareil de coupure mecanique d'un circuit electrique |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2349263A1 (de) * | 1973-10-01 | 1975-04-03 | Bbc Brown Boveri & Cie | Elektrischer schalter |
DE3141324A1 (de) * | 1981-10-17 | 1983-05-05 | BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau | Leistungsschalter |
FR2610763A1 (fr) * | 1987-02-09 | 1988-08-12 | Alsthom | Disjoncteur a faible energie de manoeuvre |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1988
- 1988-09-16 FR FR8812115A patent/FR2639147B1/fr not_active Expired - Lifetime
-
1989
- 1989-09-11 US US07/405,155 patent/US4945197A/en not_active Expired - Fee Related
- 1989-09-13 ES ES89116944T patent/ES2047078T3/es not_active Expired - Lifetime
- 1989-09-13 DE DE89116944T patent/DE68911440T2/de not_active Expired - Fee Related
- 1989-09-13 EP EP89116944A patent/EP0359224B1/de not_active Expired - Lifetime
- 1989-09-13 CA CA000611256A patent/CA1317619C/fr not_active Expired - Fee Related
- 1989-09-13 AT AT89116944T patent/ATE98811T1/de not_active IP Right Cessation
- 1989-09-14 JP JP1239734A patent/JP2837188B2/ja not_active Expired - Lifetime
- 1989-09-15 CN CN89107100A patent/CN1018683B/zh not_active Expired
- 1989-09-15 BR BR898904656A patent/BR8904656A/pt not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2349263A1 (de) * | 1973-10-01 | 1975-04-03 | Bbc Brown Boveri & Cie | Elektrischer schalter |
DE3141324A1 (de) * | 1981-10-17 | 1983-05-05 | BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau | Leistungsschalter |
FR2610763A1 (fr) * | 1987-02-09 | 1988-08-12 | Alsthom | Disjoncteur a faible energie de manoeuvre |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992011652A1 (de) * | 1990-12-24 | 1992-07-09 | Licentia Patent-Verwaltungs-Gmbh | Druckgasschalter |
FR2715499A1 (fr) * | 1994-01-25 | 1995-07-28 | Gec Alsthom T & D Sa | Disjoncteur à auto-soufflage à piston semi-mobile verrouillé pneumatiquement. |
EP0667633A1 (de) * | 1994-01-25 | 1995-08-16 | Gec Alsthom T & D Sa | Selbstbeblasener Leistungsschalter mit pneumatisch festlegbarem halbbeweglichem Kolben |
US5567923A (en) * | 1994-01-25 | 1996-10-22 | Gec Alsthom T&D Sa | Puffer circuit-breaker having a pneumatically-locked semi-moving piston |
EP1973133A2 (de) * | 2007-03-22 | 2008-09-24 | Korea Electro Technology Research Institute | Trennschalter unter Verwendung eines Kontaktbogens |
EP1973133A3 (de) * | 2007-03-22 | 2009-11-11 | Korea Electro Technology Research Institute | Trennschalter unter Verwendung eines Kontaktbogens |
Also Published As
Publication number | Publication date |
---|---|
CN1041239A (zh) | 1990-04-11 |
JPH02121219A (ja) | 1990-05-09 |
DE68911440D1 (de) | 1994-01-27 |
DE68911440T2 (de) | 1994-04-07 |
BR8904656A (pt) | 1990-04-24 |
ATE98811T1 (de) | 1994-01-15 |
JP2837188B2 (ja) | 1998-12-14 |
FR2639147A1 (fr) | 1990-05-18 |
FR2639147B1 (fr) | 1990-12-14 |
ES2047078T3 (es) | 1994-02-16 |
CA1317619C (fr) | 1993-05-11 |
CN1018683B (zh) | 1992-10-14 |
EP0359224B1 (de) | 1993-12-15 |
US4945197A (en) | 1990-07-31 |
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