EP2572364A1 - Buse a soufflage d'arc electrique - Google Patents
Buse a soufflage d'arc electriqueInfo
- Publication number
- EP2572364A1 EP2572364A1 EP11724145A EP11724145A EP2572364A1 EP 2572364 A1 EP2572364 A1 EP 2572364A1 EP 11724145 A EP11724145 A EP 11724145A EP 11724145 A EP11724145 A EP 11724145A EP 2572364 A1 EP2572364 A1 EP 2572364A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composite material
- inorganic filler
- nozzle
- total mass
- nozzle according
- 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
- 238000007664 blowing Methods 0.000 title claims abstract description 20
- 238000010891 electric arc Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 64
- 239000000203 mixture Substances 0.000 claims description 43
- 239000011256 inorganic filler Substances 0.000 claims description 40
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 40
- 239000002131 composite material Substances 0.000 claims description 36
- 238000011144 upstream manufacturing Methods 0.000 claims description 36
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 22
- 239000011159 matrix material Substances 0.000 claims description 20
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 20
- -1 polytetrafluoroethylenes Polymers 0.000 claims description 20
- 229920000642 polymer Polymers 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 9
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229920002313 fluoropolymer Polymers 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052627 muscovite Inorganic materials 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910052809 inorganic oxide Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 description 23
- 230000005684 electric field Effects 0.000 description 7
- 238000005245 sintering Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 238000000071 blow moulding Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000004811 fluoropolymer Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- QYFRTHZXAGSYGT-UHFFFAOYSA-L hexaaluminum dipotassium dioxosilane oxygen(2-) difluoride hydrate Chemical compound O.[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O QYFRTHZXAGSYGT-UHFFFAOYSA-L 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials
Definitions
- insulating nozzles described in WO 2009080123 which are constituted from a single material which consists of a composite material comprising a matrix of polytetrafluoroethylene loaded into different categories of additives (additives of a nature to reduce the conductivity electric nozzle and additives conferring specific optical properties).
- the nozzle formed from this material has a low relative permittivity as a whole, which does not allow to generate a significant change in the electric field at the arcing contacts and thus a decrease in electrical stress at the level of the latter. .
- a neck portion defining a gap of the arc, which arc is formed by the separation of said first arcing contact and said second arcing contact, said neck portion having its internal volume occluded by said first contact arc when the circuit breaker is in the closed position and forming a separation space between said first arcing contact and said second arcing contact, when the circuit breaker is in the open position;
- the neck portion comprises a fluorinated polymeric material having a relative permittivity of from 1.9 to 3 and the upstream end portion and the downstream end portion comprise a fluorinated polymeric material having a relative permittivity ranging from 3 , 5 to 10, preferably 5 to 7.
- the increase in the relative permittivity of the upstream and downstream end parts relative to that of the neck portion has the effect of reducing the value of the electric field at the arcing contacts, which, after opening, are respectively at the height of the upstream end portion and the downstream end portion. Decreasing the value of the electric field at the arcing contacts allows better electrical isolation between the arcing contacts.
- the fluorinated polymeric material used in the composition of the neck portion and the fluorinated polymeric material used in the composition of the downstream and upstream end portions corresponding to the specificity mentioned above in terms of relative permittivity may be composite polymeric materials comprising a fluorinated polymeric base matrix and an appropriate inorganic filler capable of conferring adequate relative permittivity.
- the mass proportion of filler in the composite material may be fixed by those skilled in the art so as to obtain a composite material having the relative permittivity values mentioned above.
- a composite material comprising a polytetrafluoroethylene polymer matrix comprising an inorganic filler M0 S 2 at a level of 0.01 to 1% by weight relative to the total mass of the material and an inorganic filler S 10 2 at a level of 0.01 to 5% by weight relative to the total mass of the material;
- a composite material comprising a polymeric matrix of polytetrafluoroethylene comprising an inorganic filler M0 S 2 at a level of 0.01 to 1% by weight relative to the total mass of the material, preferably from 0.01 to 0.5% by weight relative to the total mass of the material and an inorganic filler AI 2 COO 4 at a level of 0.01 to 5% by weight relative to the total mass of the material.
- the feedstock used in the composition of the composite material constituting the downstream and upstream end parts may be chosen from inorganic fillers of the fluoride type, such as CaF 2 , inorganic fillers of the mica type, in particular of the mica muscovite type (such as potassium mica), inorganic fillers of the glass type, for example in the form of glass fibers, inorganic fillers of the ceramic type, such as a mixture ⁇ 2 ⁇ 3 - ⁇ -b 2 ⁇ 3 , graphite and mixtures thereof.
- the feedstock used in the composition of the composite material constituting the downstream and upstream end parts may be present in said material at a level of 10 to 35% by weight relative to the total mass of the material.
- the arc-blowing nozzles of the invention may be designed by molding (for example, a hydraulic molding or isostatic molding) of a powder mixture comprising a polymer powder and a charge powder intended to enter the process. constitution of the composite materials constituting the different parts of the nozzle followed by sintering of the various molded parts so as to consolidate them.
- the invention also relates to a high or medium voltage circuit breaker comprising at least a first arcing contact and at least a second arcing contact and an electric arcing nozzle as defined above. .
- FIG. 1 there is partially seen a circuit breaker and more particularly the arc contact parts and the arc-blowing nozzle of the invention.
- the arc-blowing nozzle shown in this figure comprises a neck portion 5, i.e., an inner section portion narrowed with respect to the other parts of the nozzle, this neck portion providing separation between a portion of the nozzle portion. upstream 7 and a downstream portion 9.
- the internal volume is of cylindrical shape and, in the closed position of the circuit breaker, it is plugged by the fixed arc contact 3 and for a few milliseconds after the separation of the contacts.
- the downstream portion 9 comprises a first conical portion 9a immediately succeeding the neck, this conical portion being followed by a second cylindrical portion 9b.
- the neck portion comprises a polymeric material having a relative permittivity ranging from 1.9 to 3.
Landscapes
- Circuit Breakers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1053923A FR2960338B1 (fr) | 2010-05-20 | 2010-05-20 | Buse a soufflage d'arc electrique |
PCT/EP2011/058211 WO2011144713A1 (fr) | 2010-05-20 | 2011-05-19 | Buse a soufflage d'arc electrique |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2572364A1 true EP2572364A1 (fr) | 2013-03-27 |
EP2572364B1 EP2572364B1 (fr) | 2016-02-10 |
EP2572364B8 EP2572364B8 (fr) | 2016-03-16 |
Family
ID=43404947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11724145.5A Active EP2572364B8 (fr) | 2010-05-20 | 2011-05-19 | Buse a soufflage d'arc electrique |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2572364B8 (fr) |
FR (1) | FR2960338B1 (fr) |
WO (1) | WO2011144713A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3349234B1 (fr) | 2017-01-17 | 2020-11-18 | General Electric Technology GmbH | Buse d'arc électrique et disjoncteur comportant une telle buse |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002373561A (ja) * | 2001-06-15 | 2002-12-26 | Toshiba Corp | ガス遮断器用ノズルおよびその製造方法 |
US6696657B2 (en) * | 2001-11-21 | 2004-02-24 | Hitachi, Ltd. | Puffer type gas circuit breaker |
JP2003257293A (ja) * | 2002-03-05 | 2003-09-12 | Toshiba Corp | ガス遮断器 |
CN101946288B (zh) | 2007-12-21 | 2012-10-10 | Abb研究有限公司 | 用于气体断路器的弱导电喷嘴和其所用的基于ptfe的材料 |
-
2010
- 2010-05-20 FR FR1053923A patent/FR2960338B1/fr not_active Expired - Fee Related
-
2011
- 2011-05-19 EP EP11724145.5A patent/EP2572364B8/fr active Active
- 2011-05-19 WO PCT/EP2011/058211 patent/WO2011144713A1/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011144713A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2960338A1 (fr) | 2011-11-25 |
EP2572364B1 (fr) | 2016-02-10 |
EP2572364B8 (fr) | 2016-03-16 |
FR2960338B1 (fr) | 2012-06-29 |
WO2011144713A1 (fr) | 2011-11-24 |
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