EP1700325A1 - Organe de contact electrique pour appareillage electrique en moyenne ou haute tension, procede et appareillage correspondants - Google Patents
Organe de contact electrique pour appareillage electrique en moyenne ou haute tension, procede et appareillage correspondantsInfo
- Publication number
- EP1700325A1 EP1700325A1 EP04817609A EP04817609A EP1700325A1 EP 1700325 A1 EP1700325 A1 EP 1700325A1 EP 04817609 A EP04817609 A EP 04817609A EP 04817609 A EP04817609 A EP 04817609A EP 1700325 A1 EP1700325 A1 EP 1700325A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact member
- coating layer
- base layer
- layer
- electrical
- 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
- 238000000034 method Methods 0.000 title claims description 11
- 239000010410 layer Substances 0.000 claims abstract description 65
- 239000011247 coating layer Substances 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 28
- 229910052709 silver Inorganic materials 0.000 claims abstract description 25
- 239000004332 silver Substances 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims abstract description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 229910052738 indium Inorganic materials 0.000 claims description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 20
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910001093 Zr alloy Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5833—Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/38—Plug-and-socket contacts
- H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
Definitions
- the present invention relates to an electrical contact member for medium or high voltage electrical apparatus, to a method for manufacturing such an organ, as well as to an apparatus.
- medium or high voltage electric provided with at least one such member.
- medium or high voltage is meant a voltage greater than about 1000 volts.
- the invention finds its application to two main types of electrical equipment. It is first of all a mobile type of equipment, namely in particular an electrical switchgear. With this in mind, mention will be made in particular of circuit breakers, disconnectors, contactors or even load switches.
- such an apparatus of the mobile type comprises a contact assembly, which is provided with two members, respectively fixed and mobile. The movable member can thus be moved, relative to the fixed member, between a contact position and a separate or cut-off position.
- Each member is provided, first of all, with a respective arcing contact element.
- these members respectively fixed and mobile, are provided with permanent contacts, which ensure electrical continuity, in particular in the closed position.
- These contacts permanent, fixed or mobile type constitute electrical contact members within the meaning of the invention.
- connection piece which most often passes through the casing of the device, so as to be connected to an external electrical line. In service, it is necessary to maintain electrical contact between this connection piece and the aforementioned movable member, whatever the position of the latter. This electrical continuity is ensured by an electrical contact member, also targeted by the invention.
- the invention also finds its application to electrical equipment, of the generally static type. In this spirit, it is notably a set of busbars.
- the electrical continuity between two adjacent bars is produced by a connecting piece which surrounds the opposite ends of these conducting bars.
- a connecting piece which surrounds the opposite ends of these conducting bars.
- these two bars are subjected to slight relative displacements, so that it is difficult to fix the aforementioned connecting piece there.
- an electrical contact member also targeted by the invention. This is interposed between walls opposite the connecting piece and a corresponding conductive bar.
- the present invention relates to an electrical contact member, which is capable of connecting electrically in series two conductive members belonging to medium or high voltage electrical equipment.
- FR-A-0 334 094 discloses a rolling contact member, of an elastic nature.
- the dimensions of this hollow member, which is deformable, are such that it is slightly crushed between the two movable members, which it electrically connects. This therefore makes it possible to exert mechanical pressure, ensuring the desired electrical contact.
- This known solution however has certain drawbacks, in particular inherent in the nature of the material used. The latter, which is phosphorous bronze, is in particular not suitable for use in high voltage.
- TJS-A-6 059 577 discloses an electrical contact member having the shape of a finger, which is made of a material having both low resistivity and good corrosion resistance. It is in particular an alloy of copper, chromium and zirconium, or an alloy of copper and beryllium. However, these materials are not satisfactorily adapted to a dynamic type use, in particular insofar as they are subject to significant wear.
- US-A-2002096662 relates to an electrical contact member, arranged in the form of a metal strip, which is made of copper or an alloy coated with tin and silver, the latter element being present at a rate of at most 4% by weight. However, this material is not ideally suited for use of a dynamic type.
- DE-A-4230060 discloses an arcing contact element for a circuit breaker, the coating of which is made of an alloy of silver and palladium.
- a solution is also not satisfactory, in particular insofar as palladium has certain drawbacks in terms of electrical conductivity.
- an electrical contact member which is constituted by a strip of strips. The latter, which are pulled out of the plane of the strip, are covered by means of a layer of an electrically conductive material, such as silver. Having said this, the invention proposes to remedy all of the drawbacks of the prior art mentioned above. It aims in particular to propose an electrical contact member which lends itself satisfactorily to an adaptation to medium or high voltage.
- the invention also aims to propose such a contact member, which ensures electrical continuity between two moving parts, the relative speed of which can be relatively high. In this regard, mention will be made, purely by way of non-limiting example, of relative speeds of between 1 and 50 m / s.
- the invention also aims to provide such a member which has good temperature resistance, as well as satisfactory electrical and mechanical properties, while inducing only a small contact force on the movable members which it electrically connects.
- the invention also aims to provide such a contact member, which has a high chemical resistance, in particular with respect to corrosion. In fact, in certain applications of this contact member, it evolves in an aggressive atmosphere, due to the presence of corrosive species originating from the decomposition of certain dielectric gases initially present in the apparatus.
- the invention finally aims to provide such a contact member, the cost price of which is relatively low.
- an electrical contact member capable of electrically connecting in series two conductive members capable of moving relative to each other, which belong to an electrical apparatus of medium or high voltage, in particular a switchgear or a set of conductive bars, at least part of this contact member comprising a base layer, of mechanical strength, made of a material electrically conductive, as well as a coating layer formed from metallic silver, intended to come into contact with the two electrically conductive members, this coating layer being present on at least part of the external surface of the base layer , characterized in that this coating layer has a micro-structure formed by p ⁇ xr silver crystals, with the presence of nodules composed of silver and of a metallic addition material formed of at least one addition metal , different from money.
- the base layer gives the contact member, in accordance with the invention, good electrical and mechanical properties.
- the electrically conductive material of this base layer has an electrical resistivity of less than 200 ⁇ .cm.
- the nature of the coating layer also provides the latter with good properties in terms of electrical conduction.
- the addition material with which the silver is associated gives the latter improved mechanical properties, in particular in terms of hardening.
- FIG. 1 is a microscopic diagram representing the micro-structure of the coating layer, belonging to an electrical contact member according to the invention. This microstructure is obtained either by a metallurgical type process, or by an electrolytic type process.
- this coating layer is very predominantly made up of metallic silver, with the presence in a very small amount of an addition metal denoted M, namely for example 0.5%.
- M an addition metal
- the addition material guarantees an improvement in the mechanical properties of the coating layer, thanks to the known phenomenon of structural hardening. Furthermore, in the case where this layer is obtained by an electrolytic process, this addition material allows a better arrangement between the atoms of the successive layers of silver, inducing a strong compaction of the latter, and therefore a high hardness. The phenomena mentioned above allow therefore to avoid rapid wear of the coating layer, during friction of the contact member against the two electrically conductive members.
- FIG. 2 illustrates a metallurgical structure of a coating layer of the prior art, made up only of metallic silver. There are thus only silver crystals I there, without additional element.
- FIG. 3 represents the micro-structure of a coating layer, which is not in accordance with the invention, in which a fraction significant addition material is present.
- the various materials used, for the production of the contact member according to the invention provide the latter with a relatively low cost price.
- the or each metal forming the addition material does not belong to the platinum column.
- the latter comprises the following elements, namely nickel, palladium and platinum.
- the addition material is formed from at least one element chosen from copper, phosphorus and indium.
- the addition material is present, in the coating layer, at a rate of less than 1% by weight, preferably at a rate of less than 0.5% by weight, even more preferably at due to less than 0.1% by weight. This makes it possible not to substantially reduce the electrical conductivity of this coating layer.
- the addition material is present, in the coating layer, in an amount of more than 0.001% by weight, preferably in an amount of more than 0.01% by weight. This gives the coating layer good mechanical properties, in particular in terms of abrasion in the case of intensive dynamic use. It should be noted that the coating layer may be present over the entire outer surface of the base layer.
- the thickness of the coating layer is between 1 and 1000 micrometers, preferably between 10 and 500 micrometers. It will be noted that the value of this thickness depends in particular on the size of the electrical contact member, as well as on the application which it is desired to confer on the latter.
- the base layer is made of copper, alloyed with zirconium and / or chromium. According to an advantageous measure, chromium and / or zirconium are present in an amount of less than 1% by weight, preferably in an amount of less than 0.5% by weight of the base layer.
- an interface layer intended to improve the adhesion between this base layer and this coating layer.
- This interface layer provides mechanical support for the coating layer, while preventing the diffusion of the various constituent elements of the base and coating layers from one to the other of these layers.
- Such an interface layer is for example made of optionally alloyed nickel, or alternatively of optionally alloyed palladium.
- This interface layer advantageously has a thickness of between 1 and 10 micrometers.
- the electrical contact member is folded back on itself, like a ring.
- the electrical contact member is made in one piece. It can in particular be formed of a single wire, wound on itself so as to form a succession of turns. The manufacture of such a wire is notably described in EP-A-0 890 758. It should be noted that this wire is capable of having any cross section, namely in particular circular, polygonal with rounded edges, elliptical or even oval .
- the electrical contact member can be formed from several contact elements.
- these different contact elements are secured to each other.
- These may in particular be bands folded in the manner of an accordion, the opposite ends of which are mutually secured, so that these different bands form a ring. It can also be punched strips, or cut and stamped strips, in accordance with the teaching of FR-A-2 811 147.
- the different contact elements are independent .
- these are in particular finger-shaped elements, which are provided discreetly at the inner and outer peripheries respectively of the two electrically conductive members.
- the invention also relates to a method of manufacturing an electrical contact member as defined above, comprising the following steps: - at least the base layer is shaped;
- the base layer is shaped, then this shaped base layer is covered, by means of the coating layer.
- the base layer is first of all covered by means of the coating layer, then this base layer and this coating layer are shaped.
- co-rolling technology known as such.
- the base layer is shaped, at the same time as it is covered by means of the coating layer. Such shaping takes place in a conventional manner, for example by taking advantage of the known spinning process.
- the coating layer is first produced in the form of a silver alloy and of the addition material, before covering the base layer by means of this layer of coating thus produced.
- this coating layer is alloyed beforehand, before its application on the base layer.
- the base layer is covered with substantially pure silver, then this layer of substantially pure silver is covered with the addition material. Under these conditions, this addition material will gradually diffuse within the silver layer, in a known manner as such, for example under the effect of temperature, so as to form the coating layer.
- the possible interface layer can be added to the base layer, after the latter has been shaped. Alternatively, you can first cover the layer base using the interface layer, then format these two layers simultaneously.
- the invention finally relates to a medium or high voltage electrical apparatus, comprising at least two: electrically conductive members, capable of moving relative to each other in service, as well as at least one contact member electric, capable of electrically connecting two adjacent conductive members, characterized in that the or each electrical contact member is as defined above.
- the electrical apparatus is a switchgear, in particular a circuit breaker or a disconnector.
- the electrical equipment is a set of busbars.
- the two electrically conductive members are arranged concentrically and the or each electrical contact member is immobilized, in service, by wedging between the walls opposite these two conductive members.
- this member can be received in a groove, formed in one or the other of these two electrically conductive members.
- the two electrically conductive members are arranged one behind the other, a hollow connecting piece engaging the opposite ends of these two conductive members, while the or each contact member electric is immobilized, in service, by wedging between the walls opposite this connecting piece and at least one of the two conductive members.
- FIG. 4 is a view in longitudinal section, illustrating partially electrical equipment according to the invention
- - Figure 5 is a front view, illustrating an electrical contact member which equips the apparatus of Figure 4
- - Figure 6 is a sectional view along the line VI-VI in Figure 5
- - Figure 7 is a schematic view illustrating an electrical apparatus according to an alternative embodiment of the invention.
- FIG. 4 partially illustrates a first type of electrical apparatus targeted by the invention, which is in this case a medium or high voltage switchgear, for example a circuit breaker.
- a medium or high voltage switchgear for example a circuit breaker.
- FIG. 4 partially illustrates a first type of electrical apparatus targeted by the invention, which is in this case a medium or high voltage switchgear, for example a circuit breaker.
- a medium or high voltage switchgear for example a circuit breaker.
- the arrangement thereof is conventional, so that it will be described succinctly in the following.
- This chamber 2 which is delimited by an insulating cylindrical envelope 4, is filled with an insulating gas, such as for example SF 6 .
- an insulating gas such as for example SF 6 .
- This member 6 comprises, in known manner, a support 8 on which is mounted an arcing contact element 10.
- this fixed member 6 is provided with a fixed permanent contact, assigned the reference 11, which is of the type classic.
- the breaking chamber 2 also contains a movable contact member, generally designated by the reference 12. This comprises a support 14, on which is attached a movable arcing contact element 16.
- This movable member 12 is equipped conventionally, a contact tube 18, forming a permanent movable contact, which supports an insulating nozzle or nozzle 20.
- the movable member 12 can be moved between a contact position, shown on the left of FIG. 4, in which the elements 10 and 16, as well as the contacts 11 and 18, are in mutual contact, and a cut-off position, represented on the right of this FIG. 4, in which these two: elements 10 and 16, as well as the contacts 11 and 18, are mutually separate.
- the contact tube 18 moves in the vicinity of the interior walls of a connection piece 22, delimiting an annular channel for receiving this contact tube 18.
- This connection piece 22 is extended by a return transverse 22 i7 passing tightly through the casing 4. It is moreover connected, in a conventional manner, to a power line not shown.
- the walls of the connecting piece 22 are hollowed out by several annular grooves 22 2 , provided in this case three in number. Each of these grooves receives an electrical contact member according to the invention, generally designated by the reference 24.
- These three contact members 24 thus ensure, in service, the electrical continuity between the contact tube 18 of the member mobile 12 and the connecting piece 22.
- the contact members 24 could be received in grooves, not formed in the walls of the piece 22, but produced in the walls of the tube movable contact 18.
- FIG. 4 the various contact members 24 are shown very schematically. One of these members 24 is illustrated more precisely in FIG. 5. As the latter shows, the member 24 is formed by a single metal wire 25, which is folded back on itself so as to form a succession of turns.
- this wire 25 conforms to that described for example in EP-A-0 890 758, the content of which is incorporated by reference in the present description.
- this annular member 24 has two or more physical and, therefore, electrical contact surfaces. It is first of all an interior surface S x by which the member 24 comes into contact with the tube 18. In addition, the surface outer S 2 of this member 24 allows it to come into contact with the walls of the connection piece 22.
- FIG. 6 is a view in transverse section, illustrating the different constituent layers of the wire 25, forming the contact member 24 First of all, a base layer 26 made of an alloy of copper and zirconium is provided. This base layer has a diameter for example close to 5 mm.
- FIG. 7 illustrates a second type of apparatus electric, targeted by the invention. It is in this case a set of busbars, of a type known per se. In this FIG.
- only one end of the connecting piece 120 may be provided with one or more electrical contact member (s) 24.
- the other end of the connecting piece is directly connected attached to the corresponding busbar, in particular by screwing.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Contacts (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0351218A FR2864688B1 (fr) | 2003-12-29 | 2003-12-29 | Organe de contact electrique pour appareillage electrique en moyenne ou haute tension, procede et appareillage correspondants. |
PCT/FR2004/003398 WO2005069327A1 (fr) | 2003-12-29 | 2004-12-28 | Organe de contact electrique pour appareillage electrique en moyenne ou haute tension, procede et appareillage correspondants |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1700325A1 true EP1700325A1 (fr) | 2006-09-13 |
EP1700325B1 EP1700325B1 (fr) | 2010-06-30 |
Family
ID=34639767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04817609A Not-in-force EP1700325B1 (fr) | 2003-12-29 | 2004-12-28 | Organe de contact electrique pour appareillage electrique en moyenne ou haute tension, procede et appareillage correspondants |
Country Status (7)
Country | Link |
---|---|
US (1) | US7677915B2 (fr) |
EP (1) | EP1700325B1 (fr) |
CN (1) | CN1902721B (fr) |
AT (1) | ATE472810T1 (fr) |
DE (1) | DE602004027949D1 (fr) |
FR (1) | FR2864688B1 (fr) |
WO (1) | WO2005069327A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2835806A1 (fr) * | 2013-08-05 | 2015-02-11 | ABB Technology AG | Unité coupe-circuit haute tension présentant une meilleure endurance mécanique |
JP2015067861A (ja) * | 2013-09-30 | 2015-04-13 | 株式会社オートネットワーク技術研究所 | コネクタ用電気接点材料及びその製造方法 |
US11380501B2 (en) * | 2019-12-31 | 2022-07-05 | Southern States Llc | High voltage electric power switch with carbon arcing electrodes and carbon dioxide dielectric gas |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1732839A (en) * | 1927-05-31 | 1929-10-22 | Hardy M Fredriksen | Metal alloy for use in manufacturing electrical contacts |
FR1292079A (fr) * | 1960-06-15 | 1962-04-27 | Thomson Houston Comp Francaise | Structure de contact pour interrupteur à vide |
US3561444A (en) * | 1968-05-22 | 1971-02-09 | Bio Logics Inc | Ultrasonic drug nebulizer |
FR2204864B3 (fr) * | 1972-10-27 | 1976-01-30 | Delle Alsthom Fr | |
DE4230060A1 (de) | 1992-09-07 | 1994-03-10 | Siemens Ag | Trennschalter mit in einem Isoliergas angeordneten Kontaktgliedern |
US5545842A (en) * | 1993-10-26 | 1996-08-13 | Bal Seal Engineering Company, Inc. | Radially mounted spring to connect, lock and unlock, and for snap-on fastening, and for mechanical, electromagnetic shielding, electrical conductivity, and thermal dissipation with environmental sealing |
SE506601C2 (sv) * | 1996-05-23 | 1998-01-19 | Asea Brown Boveri | Kontaktanordning |
DE19703345A1 (de) * | 1997-01-30 | 1998-08-06 | Abb Patent Gmbh | Tulpenkontaktstück für ein Hochspannungsschaltgerät und Kontaktanordnung |
JPH1172130A (ja) | 1997-07-07 | 1999-03-16 | Bal Seal Eng Co Inc | 長軸に沿って傾けたコイルを備えた径方向用のばね及び軸線方向用のばね |
DE10025107A1 (de) | 2000-05-20 | 2001-11-22 | Stolberger Metallwerke Gmbh | Elektrisch leifähiges Metallband und Steckverbinder |
FR2811147B1 (fr) | 2000-06-29 | 2002-12-06 | Alstom | Procede de fabrication d'une bande de lamelles de contact electrique et bande de lamelles de contact electrique |
-
2003
- 2003-12-29 FR FR0351218A patent/FR2864688B1/fr not_active Expired - Fee Related
-
2004
- 2004-12-28 AT AT04817609T patent/ATE472810T1/de not_active IP Right Cessation
- 2004-12-28 WO PCT/FR2004/003398 patent/WO2005069327A1/fr not_active Application Discontinuation
- 2004-12-28 EP EP04817609A patent/EP1700325B1/fr not_active Not-in-force
- 2004-12-28 US US10/583,728 patent/US7677915B2/en not_active Expired - Fee Related
- 2004-12-28 DE DE602004027949T patent/DE602004027949D1/de active Active
- 2004-12-28 CN CN2004800394455A patent/CN1902721B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2005069327A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE472810T1 (de) | 2010-07-15 |
WO2005069327A1 (fr) | 2005-07-28 |
DE602004027949D1 (de) | 2010-08-12 |
EP1700325B1 (fr) | 2010-06-30 |
US7677915B2 (en) | 2010-03-16 |
FR2864688A1 (fr) | 2005-07-01 |
CN1902721B (zh) | 2010-06-23 |
FR2864688B1 (fr) | 2006-02-24 |
CN1902721A (zh) | 2007-01-24 |
US20070111590A1 (en) | 2007-05-17 |
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