EP0709867B1 - Electric vacuum interrupter - Google Patents
Electric vacuum interrupter Download PDFInfo
- Publication number
- EP0709867B1 EP0709867B1 EP95116884A EP95116884A EP0709867B1 EP 0709867 B1 EP0709867 B1 EP 0709867B1 EP 95116884 A EP95116884 A EP 95116884A EP 95116884 A EP95116884 A EP 95116884A EP 0709867 B1 EP0709867 B1 EP 0709867B1
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- EP
- European Patent Office
- Prior art keywords
- coil
- switch according
- mentioned
- branch
- current
- 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.)
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- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H33/6641—Contacts; Arc-extinguishing means, e.g. arcing rings making use of a separate coil
Definitions
- the present invention relates to an electric switch intended to ensure breaking in an electrical circuit, of the type comprising an elongated vacuum cartridge with envelope cylindrical closed by two bottoms, in which two arcing contacts are housed, one of which, fixed, is secured to one of the aforementioned funds while the other, mobile, is mounted to axial sliding inside the cartridge, and at least one coil intended to produce an axial magnetic field in the arc formation area, said coil comprising a first end electrically connected to one of the aforementioned arcing contacts and a second end arranged in the current supply range.
- a known circuit breaker (document FR-2.682.808) of the kind mentioned, comprises a ring-shaped coil placed in an annular housing formed by the bottom associated with the coil so that the latter is arranged coaxially outside the cartridge in line with the arcing contact separation interval.
- One end of the coil is mechanically and electrically connected to the fixed arcing contact, while the other end is electrically connected to a current supply range while being electrically isolated from the fixed arcing contact.
- One of the drawbacks of this type of circuit breaker is that, the coil being in series with the arcing contacts, all of the main current flows through the coil. It follows that it is necessary to provide a coil of large section, which therefore has a considerable bulk.
- the present invention solves these problems and proposes a switch, in particular under vacuum using a coil for the creation of an axial magnetic field, of simple design and reduced dimensions.
- the present invention relates to a switch of the kind previously mentioned according to claim 1.
- the coil can be constituted by one or more turns of small section.
- the bypass means comprises a resistive element.
- this resistive element comprises a resistive washer electrically connecting the two aforementioned ends of the coil.
- the aforementioned bypass means comprises a magnetic circuit.
- the magnetic circuit is placed around a conductor electrically connecting the two aforementioned ends of the coil.
- the magnetic circuit comprises at least one air gap intended delay the current bypass to a certain current intensity value main.
- the bypass in the turn is carried out from 8000A.
- the coil consists of a turn, the two of which ends each extend with an angular offset, parallel to the bottoms of the cartridge.
- the first end of the coil is secured mechanically and electrically connected to the fixed arcing contact.
- the aforementioned bypass means drifts between 10 and 60% of the current in the coil.
- the coil and the bypass means are placed inside or outside the cartridge empty.
- the coil and the bypass means are placed at inside the arcing contact between a conductive rod and an electrode of said contact.
- each of the contacts is associated with a coil and a means of bypass, which are placed inside the vacuum cartridge.
- a vacuum interrupter I mainly comprising a vacuum bulb (or cartridge) 1 and a coil 2 mounted coaxially around said bulb in a manner which will be described through the following.
- This bulb 1 includes an envelope 3 consisting of a cylindrical part 3a closed by two opposite bottoms 3b, 3c. Inside the casing 3 are arranged a fixed arcing contact 4 secured to one 3b aforementioned funds, and a movable arcing contact 5 carried by a control rod (not shown) sealingly crossing the other 3c of the two bottoms.
- Arc contacts 4, 5 are disc-shaped in a material of low resistivity.
- Coil 2 is shaped ring arranged coaxially outside the cartridge 1 in line with the interval of separation of the arcing contacts 4, 5.
- This coil 2 is constituted by a turn and comprises a first and a second end 2a, 2b each extending with an offset angular, parallel to said bottom 3b associated with the coil 2.
- the first end 2a is mechanically and electrically secured to the fixed contact 4.
- the second end 2b forms a current supply range connected to that of the circuit breaker, and is mechanically fixed to the fixed contact 4 by any suitable means, such as a screw passing through aligned holes provided in the two aforementioned ends 2a, 2b of the coil 2, and screwing into the contact fixed arc 4.
- the switch I further comprises a means M, interposed between the two aforementioned ends 2a, 2b of the coil 2, to divert part of the current from the supply range of current 2b, through coil 2, while the part complementary to the current passing through the two ends 2a, 2b and the two arcing contacts 4, 5 until the moment of switching off.
- this means M is a resistive element 6, in the form of a washer, interposed between the two ends 2a, 2b of turn 2.
- this means M is a magnetic circuit 7 arranged around a conductor 8 electrically connecting the two above mentioned ends 2a, 2b.
- This magnetic circuit 7 will advantageously include one or several air gaps depending on the desired performance.
- switch I of the invention will be briefly described below. successively in its two embodiments illustrated respectively in FIGS. 2 and 3.
- This vacuum interrupter I is particularly intended to ensure cutting in vacuum in axial field for a permanent current ranging from 630A to 3150A.
- the current bypass occurs from the start of the current flow, during the cut, and this in a linear fashion. This derivation generates an axial magnetic field in the separation zone of the arcing contacts necessary for cutting.
- this element 6 will advantageously be a washer made of a material of high resistivity (stainless steel or other).
- the magnetic circuit 7 includes an air gap and will therefore remain practically inactive up to a certain intensity value. Until this value, the current bypass through coil 2 will be weak. From this value, the magnetic circuit 7 will activate, which will cause the derivation of a certain amount of current through coil 2, this bypass creating a sufficient axial magnetic field to obtain the cut.
- this activation value of the circuit will advantageously be 8000A, value from which an axial magnetic field is necessary to obtain the break.
- the turn 2 can remain of section small compared to the cross section of the conductor 9 through which the permanent current passes, unlike solutions in which the coil 2 is connected in series with the contacts arc 4, 5 and conducts almost all of the permanent current.
- the section of coil 2 can therefore be reduced, all the more so in the event of a break, the passage time is short.
- FIG 4 illustrates a third embodiment of the invention.
- a vacuum interrupter 1 mainly comprising an insulating envelope of cylindrical shape closed by two metal bottoms 3b, 3c, and containing two contacts arc 4, 5 respectively fixed and movable extending coaxially inside said envelope.
- the two contacts 4 and 5 have the same structure and are each constituted, as this is visible in Figure 5, by a conductive rod 10 and a conductive electrode 13 with a coil 12 and a bypass means 11 between the rod and the electrode.
- this bypass means is an element resistive 11. But we could also consider interposing a means of derivation consisting of a magnetic circuit.
- the invention will be advantageously applied to electrical switches belonging to areas ranging from low voltage to very high voltage.
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Description
La présente invention concerne un interrupteur électrique destiné à assurer la coupure dans un circuit électrique, du genre comprenant une cartouche allongée sous vide à enveloppe cylindrique obturée par deux fonds, dans laquelle sont logés deux contacts d'arc dont l'un, fixe, est solidaire de l'un des fonds précités tandis que l'autre, mobile, est monté à coulissement axial à l'intérieur de la cartouche, et au moins une bobine destinée à produire un champ magnétique axial dans la zone de formation de l'arc, ladite bobine comprenant une première extrémité reliée électriquement à l'un des contacts d'arc précités et une seconde extrémité agencée en plage d'amenée du courant.The present invention relates to an electric switch intended to ensure breaking in an electrical circuit, of the type comprising an elongated vacuum cartridge with envelope cylindrical closed by two bottoms, in which two arcing contacts are housed, one of which, fixed, is secured to one of the aforementioned funds while the other, mobile, is mounted to axial sliding inside the cartridge, and at least one coil intended to produce an axial magnetic field in the arc formation area, said coil comprising a first end electrically connected to one of the aforementioned arcing contacts and a second end arranged in the current supply range.
Un disjoncteur connu (document FR-2.682.808) du genre mentionné, comporte une bobine
en forme d'anneau placée dans un logement annulaire formé par le fond associé à la bobine
de manière que cette dernière soit disposée coaxialement à l'extérieur de la cartouche au
droit de l'intervalle de séparation des contacts d'arc. L'une des extrémités de la bobine est
solidarisée mécaniquement et électriquement au contact d'arc fixe, tandis que l'autre
extrémité est reliée électriquement à une plage d'amenée du courant tout en étant
électriquement isolé du contact d'arc fixe. L'un des inconvénients de ce type de disjoncteur
tient en ce que, la bobine étant en série avec les contacts d'arc, la totalité du courant
principal traverse la bobine. Il en résulte qu'il est nécessaire de prévoir une bobine de
section importante, laquelle présente de ce fait un encombrement considérable.
On connaít également le document EP 0 329 410 décrivant un dispositif comportant les
caractéristiques du préambule de la revendication 1. Or, le dispositif décrit dans ce
document, ne comporte pas de bobine indépendante des contacts. Le champs magnétique
axial est crée par le courant circulant dans une partie annulaire formant partie intégrante du
contact d'arc lui-même.A known circuit breaker (document FR-2.682.808) of the kind mentioned, comprises a ring-shaped coil placed in an annular housing formed by the bottom associated with the coil so that the latter is arranged coaxially outside the cartridge in line with the arcing contact separation interval. One end of the coil is mechanically and electrically connected to the fixed arcing contact, while the other end is electrically connected to a current supply range while being electrically isolated from the fixed arcing contact. One of the drawbacks of this type of circuit breaker is that, the coil being in series with the arcing contacts, all of the main current flows through the coil. It follows that it is necessary to provide a coil of large section, which therefore has a considerable bulk.
We also know the document EP 0 329 410 describing a device comprising the characteristics of the preamble of
La présente invention résout ces problèmes et propose un interrupteur notamment sous vide utilisant une bobine pour la création d'un champ magnétique axial, de conception simple et d'encombrement réduit.The present invention solves these problems and proposes a switch, in particular under vacuum using a coil for the creation of an axial magnetic field, of simple design and reduced dimensions.
A cet effet, la présente invention a pour objet un interrupteur du genre précédemment
mentionné selon la revendication 1.
On voit déjà que grâce à l'invention, la bobine peut être constituée par une ou plusieurs
spires de section faible.
Selon une première réalisation de l'invention, le moyen de dérivation comprend un élément
résistif. To this end, the present invention relates to a switch of the kind previously mentioned according to
We already see that thanks to the invention, the coil can be constituted by one or more turns of small section.
According to a first embodiment of the invention, the bypass means comprises a resistive element.
Selon une caractéristique particulière, cet élément résistif comprend une rondelle résistive reliant électriquement les deux extrémités précitées de la bobine.According to a particular characteristic, this resistive element comprises a resistive washer electrically connecting the two aforementioned ends of the coil.
Selon une autre réalisation, le moyen de dérivation précité comprend un circuit magnétique.According to another embodiment, the aforementioned bypass means comprises a magnetic circuit.
Selon une caractéristique particulière, le circuit magnétique est placé autour d'un conducteur reliant électriquement les deux extrémités précitées de la bobine.According to a particular characteristic, the magnetic circuit is placed around a conductor electrically connecting the two aforementioned ends of the coil.
Selon une autre caractéristique, le circuit magnétique comporte au moins un entrefer destiné à retarder la dérivation du courant jusqu'à une certaine valeur d'intensité de courant principal.According to another characteristic, the magnetic circuit comprises at least one air gap intended delay the current bypass to a certain current intensity value main.
Avantageusement, la dérivation dans la spire s'effectue à partir de 8000A.Advantageously, the bypass in the turn is carried out from 8000A.
Selon une autre caractéristique, la bobine est constituée par une spire dont les deux extrémités s'étendent chacune avec un décalage angulaire, parallèlement aux fonds de la cartouche .According to another characteristic, the coil consists of a turn, the two of which ends each extend with an angular offset, parallel to the bottoms of the cartridge.
Selon une autre caractéristique, la première extrémité de la bobine est solidarisée mécaniquement et reliée électriquement au contact d'arc fixe.According to another characteristic, the first end of the coil is secured mechanically and electrically connected to the fixed arcing contact.
Avantageusement, le moyen de dérivation précité dérive entre 10 et 60% du courant dans la bobine.Advantageously, the aforementioned bypass means drifts between 10 and 60% of the current in the coil.
La bobine et le moyen de dérivation sont placés à l'intérieur ou à l'extérieur de la cartouche à vide.The coil and the bypass means are placed inside or outside the cartridge empty.
Selon une réalisation particulière, la bobine et le moyen de dérivation sont placés à l'intérieur du contact d'arc entre une tige conductrice et une électrode dudit contact.According to a particular embodiment, the coil and the bypass means are placed at inside the arcing contact between a conductive rod and an electrode of said contact.
Avantageusement, à chacun des contacts sont associés une bobine et un moyen de dérivation, lesquels sont placés à l'intérieur de la cartouche à vide.Advantageously, each of the contacts is associated with a coil and a means of bypass, which are placed inside the vacuum cartridge.
Mais d'autres avantages et caractéristiques de l'invention apparaítront mieux dans la
description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre
d'exemple et dans lesquels :
Sur les figures 1, 2 et 3, on voit un interrupteur à vide I comprenant principalement une
ampoule (ou cartouche) à vide 1 et une bobine 2 montée coaxialement autour de ladite
ampoule d'une manière qui va être décrite à travers ce qui suit. Cette ampoule 1 comporte
une enveloppe 3 constituée d'une partie cylindrique 3a fermée par deux fonds opposés 3b,
3c. A l'intérieur de l'enveloppe 3 sont disposés un contact d'arc fixe 4 solidaire de l'un 3b
des fonds précités, et un contact d'arc mobile 5 porté par une tige de commande (non
représentée) traversant d'une manière étanche l'autre 3c des deux fonds. Les contacts d'arc
4, 5 sont en forme de disque en un matériau de faible résistivité. La bobine 2 est en forme
d'anneau disposé coaxialement à l'extérieur de la cartouche 1 au droit de l'intervalle de
séparation des contacts d'arc 4, 5. Cette bobine 2 est constituée par une spire et comporte
une première et une deuxième extrémité 2a, 2b s'étendant chacune avec un décalage
angulaire, parallèlement audit fond 3b associé à la bobine 2. La première extrémité 2a est
solidarisée mécaniquement et électriquement au contact fixe 4. La deuxième extrémité 2b
forme une plage d'amenée du courant reliée à celle du disjoncteur, et est mécaniquement
fixée au contact fixe 4 par tout moyen approprié, telle une vis traversant des trous alignés
prévus dans les deux extrémités précitées 2a, 2b de la bobine 2, et se vissant dans le contact
d'arc fixe 4.In Figures 1, 2 and 3, we see a vacuum interrupter I mainly comprising a
vacuum bulb (or cartridge) 1 and a
Conformément à l'invention, l'interrupteur I comporte en outre un moyen M, interposé
entre les deux extrémités précitées 2a, 2b de la bobine 2, pour dériver une partie du courant
issu de la plage d'amenée du courant 2b, à travers la spire 2, tandis que la partie
complémentaire du courant traverse les deux extrémités 2a, 2b et les deux contacts d'arc 4,
5 jusqu'au moment de la coupure. According to the invention, the switch I further comprises a means M, interposed
between the two aforementioned ends 2a, 2b of the
Suivant une réalisation particulière de l'invention illustrée sur la figure 2, ce moyen M est
un élément résistif 6, sous forme de rondelle, interposé entre les deux extrémités 2a, 2b de
la spire 2.According to a particular embodiment of the invention illustrated in FIG. 2, this means M is
a
Suivant une autre réalisation particulière de l'invention illustrée sur la figure 3, ce moyen M est un circuit magnétique 7 disposé autour d'un conducteur 8 reliant électriquement les deux extrémités précitées 2a, 2b. Ce circuit magnétique 7 comportera avantageusement un ou plusieurs entrefers en fonction des performances recherchées.According to another particular embodiment of the invention illustrated in FIG. 3, this means M is a magnetic circuit 7 arranged around a conductor 8 electrically connecting the two above mentioned ends 2a, 2b. This magnetic circuit 7 will advantageously include one or several air gaps depending on the desired performance.
Avantageusement pour ces trois réalisations différentes, on dérivera entre 10 et 60% du
courant total dans la spire 2, une dérivation inférieure à 10% étant insuffisante pour réaliser
la coupure alors qu'une dérivation supérieure à 60% serait susceptible d'engendrer un
échauffement indésirable.Advantageously for these three different embodiments, between 10 and 60% of the
total current in
On décrira ci-après brièvement le fonctionnement de l'interrupteur I de l'invention successivement dans ses deux réalisations illustrées respectivement sur les figures 2 et 3.The operation of switch I of the invention will be briefly described below. successively in its two embodiments illustrated respectively in FIGS. 2 and 3.
Cet interrupteur à vide I est particulièrement destiné à assurer la coupure dans le vide en champ axial pour un courant permanent allant de 630A à 3150A.This vacuum interrupter I is particularly intended to ensure cutting in vacuum in axial field for a permanent current ranging from 630A to 3150A.
Selon la réalisation illustrée sur la figure 2, la dérivation du courant se produit dès le début du passage du courant, pendant la coupure, et ce de façon linéaire. Cette dérivation engendre dans la zone de séparation des contacts d'arc, un champ magnétique axial nécessaire à la coupure.According to the embodiment illustrated in Figure 2, the current bypass occurs from the start of the current flow, during the cut, and this in a linear fashion. This derivation generates an axial magnetic field in the separation zone of the arcing contacts necessary for cutting.
On notera que cet élément 6 sera avantageusement une rondelle réalisée en un matériau de
forte résistivitée (Inox ou autre).It will be noted that this
Selon la réalisation illustrée sur la figure 3, le circuit magnétique 7 comporte un entrefer et
restera donc pratiquement inactif jusqu'à une certaine valeur d'intensité. Jusqu'à cette
valeur, la dérivation du courant à travers la spire 2 sera faible. A partir de cette valeur, le
circuit magnétique 7 s'activera, ce qui entraínera la dérivation d'une certaine quantité de
courant à travers la spire 2, cette dérivation créant un champ magnétique axial suffisant
pour l'obtention de la coupure.According to the embodiment illustrated in FIG. 3, the magnetic circuit 7 includes an air gap and
will therefore remain practically inactive up to a certain intensity value. Until this
value, the current bypass through
On notera également que cette valeur d'activation du circuit sera avantageusement de 8000A, valeur à partir de laquelle un champ magnétique axial est nécessaire pour obtenir la coupure. It will also be noted that this activation value of the circuit will advantageously be 8000A, value from which an axial magnetic field is necessary to obtain the break.
L'un des avantages procurés par l'invention tient en ce que la spire 2 peut rester de section
faible par rapport à la section du conducteur 9 traversé par le courant permanent,
contrairement aux solutions dans lesquelles la bobine 2 est montée en série des contacts
d'arc 4, 5 et conduit la quasi totalité du courant permanent. La section de la spire 2 peut
donc être réduite, d'autant qu'en coupure, le temps de passage est court.One of the advantages afforded by the invention is that the
La figure 4 illustre une troisième réalisation de l'invention. Sur cette figure, on voit un
interrupteur à ampoule sous vide 1 comprenant principalement une enveloppe isolante de
forme cylindrique fermée par deux fonds métalliques 3b, 3c, et renfermant deux contacts
d'arc 4, 5 respectivement fixe et mobile s'étendant coaxialement à l'intérieur de ladite
enveloppe. Les deux contacts 4 et 5 ont la même structure et sont constitués chacun, comme
ceci est visible sur la figure 5, par une tige conductrice 10 et une électrode conductrice 13
avec entre la tige et l'électrode une bobine 12 et un moyen de dérivation 11.Figure 4 illustrates a third embodiment of the invention. In this figure we see a
Selon la réalisation illustrée sur la figure 4, ce moyen de dérivation est un élément résistif 11. Mais on pourrait également envisager d'interposer un moyen de dérivation constitué par un circuit magnétique.According to the embodiment illustrated in Figure 4, this bypass means is an element resistive 11. But we could also consider interposing a means of derivation consisting of a magnetic circuit.
Ainsi, tous les moyens assurant la génération d'un champ magnétique axial se trouvent à
l'intérieur de 1' ampoule à vide. Ces moyens de dérivation par un matériau de forte
résistivité ou un circuit magnétique dérivent entre 5 % et 60 % du courant dans les bobines.
Cette solution est avantageuse pour des courants permanents allant de 630 à 3150 A.
Elle permet en outre d'une part, d'améliorer considérablement la rigidité mécanique de
l'ensemble lorsqu'appliquée dans un disjoncteur et d'autre part, de réduire les coûts de
fabrication grâce à une construction des contacts particulièrement simple.Thus, all the means ensuring the generation of an axial magnetic field are inside the vacuum interrupter. These means of derivation by a material with high resistivity or a magnetic circuit derive between 5% and 60% of the current in the coils. This solution is advantageous for permanent currents ranging from 630 to 3150 A.
It also makes it possible, on the one hand, to considerably improve the mechanical rigidity of the assembly when applied in a circuit breaker and, on the other hand, to reduce manufacturing costs thanks to a particularly simple construction of the contacts.
L'invention sera appliquée avantageusement aux interrupteurs électriques appartenant aux domaines allant de la basse tension jusqu'en très haute tension.The invention will be advantageously applied to electrical switches belonging to areas ranging from low voltage to very high voltage.
Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits et illustrés qui n'ont été donnés qu'à titre d'exemple. Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont effectuées suivant son esprit.Of course, the invention is not limited to the embodiments described and illustrated which have been given by way of example only. On the contrary, the invention includes all technical equivalents of the means described as well as their combinations if these are carried out according to his spirit.
Claims (15)
- An electrical switch designed to perform breaking in an electrical circuit, of the kind comprising an elongate vacuum cartridge with a cylindrical enclosure blanked off by two end-plates, wherein there are housed two arcing contacts one, stationary, whereof is fixedly secured to one of the above-mentioned end-plates whereas the other, movable, contact is mounted with axial sliding inside the cartridge, and at least one coil designed to produce an axial magnetic field in the arc formation zone, said coil comprising a first end electrically connected to one of the above-mentioned arcing contacts and a second end arranged as a current conducting strip,
characterized in that the above-mentioned two ends (2a, 2b) of the coil (2) are electrically connected and that it comprises a branch-off means (M) fitted between the above-mentioned two ends (2a, 2b) to shunt a part of the main current through the coil (2) during breaking, in order to create the axial magnetic field, whereas the complementary part of the current flows through the two ends of the coil and the two arcing contacts (4, 5). - The switch according to claim 1, characterized in that the two ends (2a, 2b) of the coil (2) are superposed.
- The switch according to claim 1 or 2, characterized in that the above-mentioned branch-off means (M) comprise a resistive element (6).
- The switch according to claim 1 or 2, characterized in that the above-mentioned branch-off means (M) comprise a magnetic circuit (7).
- The switch according to claim 3, characterized in that the resistive element (6) comprises a resistive washer electrically connecting the above-mentioned two ends (2a, 2b) of the coil (2).
- The switch according to claim 4, characterized in that the magnetic circuit (7) is placed around a conductor (8) electrically connecting the above-mentioned two ends (2a, 2b) of the coil (2).
- The switch according to either one of the claims 4 and 6, characterized in that the magnetic circuit (7) comprises at least one air-gap designed to delay shunting of the current until a certain intensity value of the main current has been reached.
- The switch according to claim 7, characterized in that shunting of the current (2) takes place above 8000A.
- The switch according to any one of the above claims, characterized in that the coil (2) is formed by a winding whose two ends (2a, 2b) both extend with an angular offset, parallel to the end-plates (3b, 3c) of the cartridge (1).
- The switch according to any one of the above claims, characterized in that the first end (2a) of the coil (2) is mechanically secured and electrically connected to the stationary arcing contact (4).
- The switch according to any one of the above claims, characterized in that the above-mentioned branch-off means (11) shunt between 10 and 60% of the current into the coil (2).
- The switch according to any one of the above claims, characterized in that the coil (2) and branch-off means (M) are placed outside the vacuum cartridge (1).
- The switch according to any one of the claims 1 to 11, characterized in that the coil (12) and branch-off means (M) are placed inside the vacuum cartridge (1).
- The switch according to claim 13, characterized in that the coil (12) and branch-off means (11) are placed inside the arcing contact (4, 5) between a conducting rod (10) and an electrode (13) of said contact.
- The switch according to any one of the above claims, characterized in that each of the contacts (4, 5) has an associated coil (12) and branch-off means (11) which are placed inside the vacuum cartridge (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9413408A FR2726396B1 (en) | 1994-10-31 | 1994-10-31 | ELECTRIC VACUUM SWITCH |
FR9413408 | 1994-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0709867A1 EP0709867A1 (en) | 1996-05-01 |
EP0709867B1 true EP0709867B1 (en) | 2001-12-05 |
Family
ID=9468630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95116884A Expired - Lifetime EP0709867B1 (en) | 1994-10-31 | 1995-10-26 | Electric vacuum interrupter |
Country Status (7)
Country | Link |
---|---|
US (1) | US5861597A (en) |
EP (1) | EP0709867B1 (en) |
JP (1) | JPH08212881A (en) |
CN (1) | CN1075663C (en) |
DE (1) | DE69524363T2 (en) |
ES (1) | ES2167397T3 (en) |
FR (1) | FR2726396B1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2745946B1 (en) * | 1996-03-08 | 1998-04-17 | Schneider Electric Sa | ELECTRIC VACUUM BREAKER OR CIRCUIT BREAKER |
DE19809828C1 (en) * | 1998-02-27 | 1999-07-08 | Eckehard Dr Ing Gebauer | Vacuum power circuit breaker |
JP2000268683A (en) * | 1999-01-14 | 2000-09-29 | Toshiba Corp | Operating device for switch |
NL1017985C2 (en) * | 2001-05-03 | 2002-11-05 | Holec Holland Nv | Vacuum circuit breaker provided with a coaxial coil for generating an axial magnetic field near the contact members of the circuit breaker. |
US7488916B2 (en) * | 2005-11-14 | 2009-02-10 | Cooper Technologies Company | Vacuum switchgear assembly, system and method |
US7772515B2 (en) * | 2005-11-14 | 2010-08-10 | Cooper Technologies Company | Vacuum switchgear assembly and system |
US7781694B2 (en) * | 2007-06-05 | 2010-08-24 | Cooper Technologies Company | Vacuum fault interrupter |
US8450630B2 (en) * | 2007-06-05 | 2013-05-28 | Cooper Technologies Company | Contact backing for a vacuum interrupter |
CN102280304B (en) * | 2011-06-17 | 2013-11-27 | 孟越峰 | Moving contact assembly and intelligent electromagnetic isolation driving switch applying same |
CN105510815A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Fault arc test apparatus |
WO2021255869A1 (en) * | 2020-06-17 | 2021-12-23 | 三菱電機株式会社 | Vacuum valve |
CN113327811A (en) * | 2021-04-22 | 2021-08-31 | 西安交通大学 | Arc extinguish chamber structure of oscillating type direct current circuit breaker |
CN113161192B (en) * | 2021-04-22 | 2023-01-20 | 云南电网有限责任公司电力科学研究院 | Magnetic field enhanced vacuum circuit breaker |
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US3366762A (en) * | 1965-04-16 | 1968-01-30 | Gen Electric | Arc controlling electrodes for switches and gaps |
FR1480001A (en) * | 1965-05-28 | 1967-07-27 | ||
GB1163271A (en) * | 1965-08-06 | 1969-09-04 | English Electric Co Ltd | Circuit Interrupters |
NL162238C (en) * | 1976-02-19 | 1980-04-15 | Hazemeijer Bv | VACUUM SWITCH WITH COAXIAL MAGNETIC COIL. |
DE3173171D1 (en) * | 1980-12-22 | 1986-01-23 | Mitsubishi Electric Corp | Vacuum interrupter |
US4717797A (en) * | 1984-12-18 | 1988-01-05 | Siemens Aktiengesellschaft | Contact arrangement for a vacuum switching tube |
US4661666A (en) * | 1985-05-28 | 1987-04-28 | Kabushiki Kaisha Meidensha | Vacuum interrupter |
US4707577A (en) * | 1986-04-05 | 1987-11-17 | Kabushiki Kaisha Meidensha | Vacuum interrupter |
US4839481A (en) * | 1988-02-16 | 1989-06-13 | Cooper Industries, Inc. | Vacuum interrupter |
DE3823297A1 (en) * | 1988-07-07 | 1989-05-11 | Slamecka Ernst | Vacuum switch having an external axial magnetic-field excitation device |
DE8904071U1 (en) * | 1989-04-03 | 1990-08-02 | AEG Sachsenwerk AG, 93055 Regensburg | Vacuum switch |
FR2682808B1 (en) * | 1991-10-17 | 1997-01-24 | Merlin Gerin | HYBRID CIRCUIT BREAKER WITH AXIAL BLOWING COIL. |
-
1994
- 1994-10-31 FR FR9413408A patent/FR2726396B1/en not_active Expired - Fee Related
-
1995
- 1995-10-16 US US08/543,389 patent/US5861597A/en not_active Expired - Fee Related
- 1995-10-26 ES ES95116884T patent/ES2167397T3/en not_active Expired - Lifetime
- 1995-10-26 EP EP95116884A patent/EP0709867B1/en not_active Expired - Lifetime
- 1995-10-26 JP JP7279112A patent/JPH08212881A/en active Pending
- 1995-10-26 DE DE69524363T patent/DE69524363T2/en not_active Expired - Fee Related
- 1995-10-31 CN CN95118524A patent/CN1075663C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0709867A1 (en) | 1996-05-01 |
FR2726396A1 (en) | 1996-05-03 |
US5861597A (en) | 1999-01-19 |
ES2167397T3 (en) | 2002-05-16 |
DE69524363D1 (en) | 2002-01-17 |
CN1075663C (en) | 2001-11-28 |
DE69524363T2 (en) | 2002-08-14 |
CN1130797A (en) | 1996-09-11 |
FR2726396B1 (en) | 1996-12-13 |
JPH08212881A (en) | 1996-08-20 |
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