EP1191564B1 - Gas insulated circuit breaker with integrated electronic current transformer - Google Patents
Gas insulated circuit breaker with integrated electronic current transformer Download PDFInfo
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- EP1191564B1 EP1191564B1 EP01402352A EP01402352A EP1191564B1 EP 1191564 B1 EP1191564 B1 EP 1191564B1 EP 01402352 A EP01402352 A EP 01402352A EP 01402352 A EP01402352 A EP 01402352A EP 1191564 B1 EP1191564 B1 EP 1191564B1
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- Prior art keywords
- annular
- circuit
- tube
- support
- breaker according
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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
- H01H33/02—Details
- H01H33/027—Integrated apparatus for measuring current or voltage
Definitions
- the invention relates to a single-phase high-voltage circuit breaker comprising at least one breaking chamber formed by an insulating tube which extends in an axial direction and is filled with an insulating gas, comprising at least one breaking chamber a current transformer that includes a primary and a secondary, the secondary being arranged in air around the primary at one end of the tube.
- the primary is at the potential electrical high voltage phase, and the secondary is subject to a high voltage potential almost equal to that of the primary.
- US Pat. No. 4,742,197 discloses a high circuit breaker voltage of this kind with at least one type of current transformer said incorporated electronics, in which the primary consists of a conductor tubular in the air forming a high voltage pole of the circuit breaker to a end of the insulating tube of the interrupting chamber.
- the secondary is disposed in the air around the primary, and is subject to high potential voltage almost equal to that of the primary.
- the electrical signal of the secondary is converted into an optical signal which is conveyed for example to using an optical fiber up to a signal processing system in a equipment at the potential of the earth.
- Such a device has advantages compared to a high-voltage circuit breaker equipped with a transformer conventional current, since it is no longer necessary to bring the wires of the winding of the secondary to grounded measuring devices, which allows in particular to reduce the footprint of the high circuit breaker voltage.
- Such a high-voltage circuit breaker also has advantages over to a gas-insulated circuit breaker with a current transformer embedded electronic type as known from patent document DE 19 608 285.
- the secondary of the transformer is disposed in the isolation gas of the interrupting chamber at one end of the insulating tube forming this chamber.
- Transformer maintenance can be costly with such a layout of the transformer, because of the difficulty to access secondary school and the need in such a case to drain the isolation gas of the circuit breaker.
- the secondary signal is generally weakened accordingly.
- Primary current measurement is then less precise compared to the other more compact arrangement of the transformer.
- this increase in the radial size of the current transformer can be penalizing for example in term of a multiphase circuit breaker assembly comprising several single-phase circuit-breakers arranged side by side due to the radial gap needed around each transformer for access to maintenance.
- An object of the invention is to remedy the disadvantages of the state of the technique, and more particularly to propose a high-voltage circuit breaker gas-insulated single phase with at least one integrated electronic type current and arranged in a modular way to allow multiple transformer mounting configurations regardless of the circuit breaker configuration (column breaker or at T), while reducing the size of the transformer of current and having the possibility to use the same module regardless of the arrangement of the module in the circuit breaker.
- the subject of the invention is a circuit breaker of the kind defined in preamble, characterized in that the primary consists of a support annular metal attached to a metal annular flange, said flange ring being disposed at one end of said insulating tube and electrically connected to a contact of the circuit breaker, and in that the inner annular space said medium is in communication with the volume of said tube to be filled with the same insulating gas by sealing between this gas and the outside atmosphere.
- the primary transformer In addition to its electrical conduction function, the primary transformer also provides a mechanical support function when disposed at the interface of the circuit breaker interrupting chamber and of a support column, or at the interface of the breaking chamber of the circuit breaker and a closing resistor housing, or at the interface of the breaker circuit breaker chamber and a connection case to a support column in a T-configuration of circuit breakers.
- annular space inside an annular support constituting the primary then allows the crossing of the operating rod of a chamber of cut, or the crossing of a conductor able to connect electrically a closing resistor at a contact of the breaking chamber.
- the annular support constituting the primary comprises a part annular which has an outer collar, this collar being fixed coaxially to the metal flange electrically connected to a contact of the breaker.
- the annular support comprises another annular part which fits together coaxially and so sealed in the first annular portion.
- the annular support primary constituent can then be formed from a single annular portion to L-shaped radial section around which the secondary comes take off before mounting the break chamber on the column support.
- the measurement signals recovered by the opto-electronic circuit can be led to the ground by optical fibers that can be advantageously guided along and outside the support column without the use of watertight crossings.
- the support column consists of a tube of composite material of the glass fiber type embedded in the resin and an elastomer coating
- the optical fibers can be guided on the along the composite tube under the elastomeric coating.
- the current transformer incorporated comprises a primary circuit formed by a metallic conductor ring 12 which serves at the same time as mechanical support when located at the interface between the breaking chamber 1 and a support column such as 9, or a closing resistance housing or crankcase connection as explained above.
- This annular metallic conductor 12 is preferably made of two annular portions 12A and 12B which engage or engage coaxially and in such a way as to allow simple place of the secondary circuit of the transformer. More particularly, the portion 12A is formed by a first tube provided with an annular flange external end plate 13A extending radially and having a diameter outermost approximately that of the flange 11. Part 12B is formed by a second tube having a slightly larger inner diameter large than the outside diameter of the first tube to get into the first tube of part 12A. The tube of part 12B is also provided an outer annular end flange 13B extending radially and having an outer diameter approximately the same as that of the flange 8. Furthermore, as shown in FIG.
- the tube of part 12B has an annular inner shoulder 13C on which is clamped by example by screws 13D, the tube of the part 12A when the two parts 12A and 13A are nested one inside the other.
- the flanges 13A and 13B are spaced apart from each other along the axis A and define an annular space in which is mounted the secondary of the transformer.
- An O-ring 14 is disposed between the two tubes of parts 12A and 12B to seal the assembly.
- annular metal support 12 in two parts 12A and 12B which fit into each other ensures a good performance whether the transformer is located at the interface or at the end of the chamber, as well as a good insulation gas seal under a pressure of a few bars in the breaking chamber.
- the secondary of the transformer is arranged around the primary 12 in air, and can be formed by Rogowski coils or by a crystal of Faraday. As mentioned above, each Rogowski coil such as 15 or the Faraday crystal (not shown) is inserted first on the tube of one parts 12A or 12B surrounding it with a weak game and the tube of the other part of the primary reported so that the secondary is found embedded between the flanges 13A and 13B of the primary.
- the opto-electronic circuit 16 associated with the transformer secondary can advantageously be placed in the air near the secondary in the annular space between the flanges 13A and 13B, and a protective casing 17 removable sheet metal can be attached to the flange 13A or 13B of to close the annular space to protect the secondary and its opto-electronic circuit of the external environment.
- the circuit secondary school may only include purely optically connected optical fibers to electronic means arranged at ground, and the electronic part of the global opto-electronic circuit is then not subject to the potential of high voltage.
- the column breaker of FIG. electronic current transformer is arranged at the interface between the tube 2 of the break chamber and the support column 9 and is crossed by the operating rod 6. More particularly, the flange 13A is fixed coaxially by screws or the like to the flange 8 and the flange 13B is coaxially attached by screws or the like to the flange 11. Watertightness the gas from the interface between the tube 2 and the support column 9 is provided by an O-ring 18 disposed between the flanges 13A and 8 and by another seal ring 19 disposed between the flanges 13B and 11. In this construction, the flange 13B serves as socket for the circuit breaker and the tube and the column communicate with each other through the annular support 12 which is therefore crossed by the insulating gas.
- FIG. 2 shows another construction of a circuit breaker according to the invention in which the electronic current transformer is arranged to the free end of the breaking chamber 1. More particularly, the tube 2 forming the interrupting chamber at its end provided with an annular flange metal 20 on which is fixed coaxially the flange 13A support 12. The flange 13B serves as a socket for the circuit breaker and has its inner annular space which is closed gas-tight by a cover 21.
- FIG. 3 shows another construction of a circuit breaker according to the invention in which the electronic current transformer is arranged to the interface between the breaking chamber 1 and a metal casing 22 containing a closing resistor 23.
- This construction corresponds more particularly to a T-fitting of two circuit breakers on one support column, the axis A of the tube 2 extending horizontally perpendicular to the support column.
- the metal ring flange 20 mounted at the end of the tube 2 is fixed coaxially with the flange 13A of the support 12 and the flange 13B of the support 12 is fixed coaxially to a metal annular flange 24 provided on the housing 22.
- the flange 13B is still used as socket for the circuit breaker and the housing 22 and the tube 2 communicate with each other at through the annular support 12 traversed by the insulating gas.
- the support 12 interposed sealingly between the housing 22 and the tube 2 is also crossed by an electrical conductor 30 which extends into the insulating gas between the closing resistor 23 in the housing 22 and a contact in the tube 2.
- a transformer can also be arranged to the interface of a breaking chamber and a connection housing of two T-circuit breakers on the top of a support column.
- a housing 31 connects the breaking chambers 1A and 1B of the two circuit breakers and overcomes an insulating support column 32, these chambers extending perpendicular to the support column 32 on either side of the housing 31.
- each current transformer comprises an annular support 12 forming the primary, a secondary 15 surrounding the primary 12, and a housing 17 enclosing the optoelectronic circuit with the secondary.
- the primaries of the two current transformers are interposed sealed on the one hand between the breaking chamber 1A and the housing 31 and other part between the casing 31 and the breaking chamber 1B.
- the measurement signals recovered by the opto-electronic circuit 16 may be led to the ground by unrepresented optical fibers guided outside the column support 9 and / or the tube forming the interrupting chamber.
- these optical fibers 24 are guided to the ground from the inside of an insulator column 26 arranged parallel to the support column of the chamber of break 1 of the circuit breaker.
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Abstract
Description
L'invention porte sur un disjoncteur haute tension monophasé comprenant au moins une chambre de coupure formée par un tube isolant qui s'étend selon une direction axiale et est rempli d'un gaz d'isolation, comportant pour au moins une chambre de coupure un transformateur de courant qui comprend un primaire et un secondaire, le secondaire étant disposé dans l'air autour du primaire à une extrémité du tube. Le primaire est au potentiel électrique haute tension de la phase, et le secondaire est soumis à un potentiel haute tension quasiment égal à celui du primaire.The invention relates to a single-phase high-voltage circuit breaker comprising at least one breaking chamber formed by an insulating tube which extends in an axial direction and is filled with an insulating gas, comprising at least one breaking chamber a current transformer that includes a primary and a secondary, the secondary being arranged in air around the primary at one end of the tube. The primary is at the potential electrical high voltage phase, and the secondary is subject to a high voltage potential almost equal to that of the primary.
On connaít du document de brevet US 4 742 197 un disjoncteur haute tension de ce genre avec au moins un transformateur de courant de type dit électronique incorporé, dans lequel le primaire est constitué d'un conducteur tubulaire dans l'air formant un pôle haute tension du disjoncteur à une extrémité du tube isolant de la chambre de coupure. Le secondaire est disposé dans l'air autour du primaire, et est soumis à un potentiel haute tension quasiment égal à celui du primaire. Le signal électrique du secondaire est converti en un signal optique qui est véhiculé par exemple à l'aide d'une fibre optique jusqu'à un système de traitement du signal dans un appareillage au potentiel de la terre. Un tel dispositif présente des avantages par rapport à un disjoncteur haute tension équipé d'un transformateur de courant conventionnel, puisqu'il n'est plus nécessaire d'amener les fils du bobinage du secondaire à des appareils de mesure reliés à la terre, ce qui permet notamment de diminuer l'encombrement au sol du disjoncteur haute tension.US Pat. No. 4,742,197 discloses a high circuit breaker voltage of this kind with at least one type of current transformer said incorporated electronics, in which the primary consists of a conductor tubular in the air forming a high voltage pole of the circuit breaker to a end of the insulating tube of the interrupting chamber. The secondary is disposed in the air around the primary, and is subject to high potential voltage almost equal to that of the primary. The electrical signal of the secondary is converted into an optical signal which is conveyed for example to using an optical fiber up to a signal processing system in a equipment at the potential of the earth. Such a device has advantages compared to a high-voltage circuit breaker equipped with a transformer conventional current, since it is no longer necessary to bring the wires of the winding of the secondary to grounded measuring devices, which allows in particular to reduce the footprint of the high circuit breaker voltage.
Un tel disjoncteur haute tension présente aussi des avantages par rapport
à un disjoncteur à isolation au gaz avec un transformateur de courant de
type électronique incorporé tel que connu du document de brevet DE 19 608
285. Dans le dispositif de ce document, le secondaire du transformateur est
disposé dans le gaz d'isolation de la chambre de coupure à une extrémité du
tube isolant formant cette chambre. La maintenance du transformateur peut
s'avérer coûteuse avec une telle disposition du transformateur, de par la
difficulté d'accéder au secondaire et la nécessité dans pareil cas de vidanger
le gaz d'isolation du disjoncteur.Such a high-voltage circuit breaker also has advantages over
to a gas-insulated circuit breaker with a current transformer
embedded electronic type as known from
Les dispositifs décrits dans le document de brevet US 4 742 197 permettent donc de réduire les coûts de maintenance du ou des transformateurs de courant. Ils permettent aussi de satisfaire à plusieurs configurations du disjoncteur (disjoncteur colonne ou en T). Toutefois, les dimensions radiales d'un transformateur de courant ainsi que du capot qui renferme ce transformateur avec son électronique associée doivent être augmentées si le secondaire du transformateur est destiné à être placé autour du tube isolant de la chambre de coupure à une extrémité traversée par une bielle de manoeuvre de cette chambre, par comparaison avec une autre disposition où le secondaire est placé autour d'un conducteur primaire disposé dans l'air et fixé à un pôle de la chambre de coupure. Il n'est donc pas possible d'utiliser un même module de transformateur de courant indépendamment de la disposition du module dans le disjoncteur.The devices described in US Patent 4,742,197 therefore reduce the maintenance costs of the current transformers. They also make it possible to satisfy several circuit breaker configurations (column or T-circuit breaker). However, radial dimensions of a current transformer as well as the hood which encloses this transformer with its associated electronics must be increased if the secondary of the transformer is intended to be placed around the insulating tube of the breaking chamber at one end crossed by a connecting rod of this chamber, compared to a other provision where the secondary is placed around a primary conductor placed in the air and attached to a pole of the breaking chamber. It is therefore not it is not possible to use the same current transformer module regardless of the arrangement of the module in the circuit breaker.
Par ailleurs, du fait que le montage d'un transformateur autour du tube isolant de la chambre de coupure nécessite une augmentation de la distance radiale entre le conducteur primaire et le secondaire, le signal du secondaire est généralement affaibli en conséquence. La mesure du courant primaire est alors moins précise par rapport à l'autre disposition plus compacte du transformateur. En outre, cette augmentation de l'encombrement radial du transformateur de courant peut s'avérer pénalisante par exemple en terme d'encombrement d'un ensemble disjoncteur polyphasé regroupant plusieurs disjoncteurs monophasés disposés côte à côte, du fait de l'espace radial nécessaire autour de chaque transformateur pour l'accès à la maintenance.Moreover, because the mounting of a transformer around the tube insulation of the break chamber requires an increase in distance radial between the primary conductor and the secondary, the secondary signal is generally weakened accordingly. Primary current measurement is then less precise compared to the other more compact arrangement of the transformer. In addition, this increase in the radial size of the current transformer can be penalizing for example in term of a multiphase circuit breaker assembly comprising several single-phase circuit-breakers arranged side by side due to the radial gap needed around each transformer for access to maintenance.
Un but de l'invention est de remédier aux inconvénients de l'état de la technique, et plus particulièrement de proposer un disjoncteur haute tension monophasé à isolation au gaz qui comporte au moins un transformateur de courant de type électronique incorporé et agencé de façon modulaire pour permettre plusieurs configurations de montage du transformateur indépendamment de la configuration du disjoncteur (disjoncteur colonne ou en T), tout en permettant de réduire l'encombrement du transformateur de courant et en ayant la possibilité d'utiliser un même module indépendamment de la disposition du module dans le disjoncteur.An object of the invention is to remedy the disadvantages of the state of the technique, and more particularly to propose a high-voltage circuit breaker gas-insulated single phase with at least one integrated electronic type current and arranged in a modular way to allow multiple transformer mounting configurations regardless of the circuit breaker configuration (column breaker or at T), while reducing the size of the transformer of current and having the possibility to use the same module regardless of the arrangement of the module in the circuit breaker.
A cet effet, l'invention a pour objet un disjoncteur du genre défini en préambule, caractérisé en ce que le primaire est constitué d'un support annulaire métallique fixé à une bride annulaire métallique, ladite bride annulaire étant disposée à une extrémité dudit tube isolant et électriquement reliée à un contact du disjoncteur, et en ce que l'espace annulaire intérieur dudit support est en communication avec le volume dudit tube pour être rempli du même gaz d'isolation en réalisant une étanchéité entre ce gaz et l'atmosphère extérieure.For this purpose, the subject of the invention is a circuit breaker of the kind defined in preamble, characterized in that the primary consists of a support annular metal attached to a metal annular flange, said flange ring being disposed at one end of said insulating tube and electrically connected to a contact of the circuit breaker, and in that the inner annular space said medium is in communication with the volume of said tube to be filled with the same insulating gas by sealing between this gas and the outside atmosphere.
En plus de sa fonction de conduction électrique, le primaire du transformateur assure également une fonction de support mécanique lorsqu'il est disposé à l'interface de la chambre de coupure du disjoncteur et d'une colonne support, ou encore à l'interface de la chambre de coupure du disjoncteur et d'un carter de résistance de fermeture, ou encore à l'interface de la chambre de coupure du disjoncteur et d'un carter de raccordement à une colonne support dans une configuration en T de disjoncteurs.In addition to its electrical conduction function, the primary transformer also provides a mechanical support function when disposed at the interface of the circuit breaker interrupting chamber and of a support column, or at the interface of the breaking chamber of the circuit breaker and a closing resistor housing, or at the interface of the breaker circuit breaker chamber and a connection case to a support column in a T-configuration of circuit breakers.
L'espace annulaire intérieur d'un support annulaire constituant le primaire permet alors la traversée de la tige de manoeuvre d'une chambre de coupure, ou encore la traversée d'un conducteur apte à relier électriquement une résistance de fermeture à un contact de la chambre de coupure.The annular space inside an annular support constituting the primary then allows the crossing of the operating rod of a chamber of cut, or the crossing of a conductor able to connect electrically a closing resistor at a contact of the breaking chamber.
Dans un mode de réalisation avantageux d'un disjoncteur selon l'invention, le support annulaire constituant le primaire comprend une partie annulaire qui comporte une collerette extérieure, cette collerette étant fixée de façon coaxiale à la bride métallique électriquement reliée à un contact du disjoncteur.In an advantageous embodiment of a circuit breaker according to the invention, the annular support constituting the primary comprises a part annular which has an outer collar, this collar being fixed coaxially to the metal flange electrically connected to a contact of the breaker.
Dans un mode complémentaire de réalisation, le support annulaire comprend une autre partie annulaire qui s'emboíte coaxialement et de façon étanche dans la première partie annulaire. Il existe toutefois des configurations de disjoncteurs selon l'invention pour lesquelles la réalisation d'un support en deux parties annulaires n'est pas nécessaire, par exemple dans le cas où le diamètre de la colonne support du disjoncteur est petit devant le diamètre de la chambre de coupure. Le support annulaire constituant le primaire peut alors être formé d'une seule partie annulaire à section radiale en forme de L autour de laquelle le secondaire vient s'emmancher avant le montage de la chambre de coupure sur la colonne support.In a complementary embodiment, the annular support comprises another annular part which fits together coaxially and so sealed in the first annular portion. However, there are configurations of circuit breakers according to the invention for which the realization a support in two annular parts is not necessary, for example in the case where the diameter of the support column of the circuit breaker is small in front of the diameter of the breaking chamber. The annular support primary constituent can then be formed from a single annular portion to L-shaped radial section around which the secondary comes take off before mounting the break chamber on the column support.
Dans une configuration de disjoncteur colonne ou de disjoncteurs en T, les signaux de mesure récupérés par le circuit opto-électronique peuvent être conduit au sol par fibres optiques qui peuvent être avantageusement guidées le long et à l'extérieur de la colonne support sans utilisation de traversées étanches. En particulier, si la colonne support est constituée d'un tube en matériau composite du type fibres de verre noyées dans la résine et d'un revêtement en élastomère, les fibres optiques peuvent être guidées le long du tube composite sous le revêtement élastomère. Ces fibres optiques sont ainsi protégées au départ usine du disjoncteur monté sur la colonne support. En exploitation du disjoncteur, les fibres optiques peuvent également être guidées vers le sol à l'intérieur d'un isolateur colonne supplémentaire disposé parallèlement à la colonne support de la chambre de coupure du disjoncteur comme montré dans le brevet US 4 742 197.In a column breaker or T-circuit breaker configuration, the measurement signals recovered by the opto-electronic circuit can be led to the ground by optical fibers that can be advantageously guided along and outside the support column without the use of watertight crossings. In particular, if the support column consists of a tube of composite material of the glass fiber type embedded in the resin and an elastomer coating, the optical fibers can be guided on the along the composite tube under the elastomeric coating. These optical fibers are thus protected at the factory from the circuit-breaker mounted on the column support. In operation of the circuit breaker, optical fibers can also be guided to the ground inside a column insulator additional parallel to the support column of the chamber breaking circuit breaker as shown in US Patent 4,742,197.
D'autres caractéristiques et avantages d'un disjoncteur selon l'invention
apparaítront encore à la lecture de la description en rapport avec les figures
qui suivent concernant différents exemples de réalisation.
Dans un disjoncteur selon l'invention, le transformateur de courant
incorporé comprend un circuit primaire formé par un conducteur métallique
annulaire 12 qui sert en même temps de support mécanique lorsqu'il se
trouve à l'interface entre la chambre de coupure 1 et une colonne support
telle que 9, ou un carter de résistance de fermeture ou un carter de
raccordement comme exposé ci-dessus.In a circuit breaker according to the invention, the current transformer
incorporated comprises a primary circuit formed by a
Ce conducteur métallique annulaire 12 est de préférence constitué en
deux parties 12A et 12B annulaires qui s'emboítent ou s'emmanchent
coaxialement et de façon l'une dans l'autre pour permettre une mise en
place simple du circuit secondaire du transformateur. Plus particulièrement,
la partie 12A est formée par un premier tube muni d'une collerette annulaire
extérieure d'extrémité 13A s'étendant radialement et ayant un diamètre
extérieur à peu près identique à celui de la collerette 11. La partie 12B est
formée par un second tube ayant un diamètre intérieur légèrement plus
grand que le diamètre extérieur du premier tube pour s'emmancher sur le
premier tube de la partie 12A. Le tube de la partie 12B est également muni
d'une collerette annulaire extérieure d'extrémité 13B s'étendant radialement
et ayant un diamètre extérieur à peu près identique à celui de la collerette 8.
Par ailleurs comme cela apparaít sur la figure 1, le tube de la partie 12B
comporte un épaulement intérieur annulaire 13C sur lequel est bridé, par
exemple par des vis 13D, le tube de la partie 12A quand les deux parties
12A et 13A sont emboítées l'une dans l'autre. Dans cette réalisation, les
collerettes 13A et 13B sont espacées l'une de l'autre suivant l'axe A et
délimitent un espace annulaire dans lequel est monté le secondaire du
transformateur. Un joint torique 14 est disposé entre les deux tubes des
parties 12A et 12B pour assurer une étanchéité de l'assemblage.This annular
La construction du support métallique annulaire 12 en deux parties 12A et
12B qui s'emboítent l'une dans l'autre permet d'assurer une bonne tenue
mécanique, que le transformateur soit situé à l'interface ou en extrémité de
chambre, ainsi qu'une bonne étanchéité au gaz d'isolation sous une
pression de quelques bars dans la chambre de coupure.The construction of the
Le secondaire du transformateur est disposé autour du primaire 12 dans
l'air, et peut être formé par des bobines de Rogowski ou par un cristal de
Faraday. Comme indiqué plus haut, chaque bobine de Rogowski telle que 15
ou le cristal de Faraday (non illustré) est inséré d'abord sur le tube de l'une
des parties 12A ou 12B en l'entourant avec un faible jeu et le tube de l'autre
partie du primaire rapporté de telle façon que le secondaire se trouve
encastré entre les collerettes 13A et 13B du primaire. Le circuit opto-électronique
16 associé au secondaire du transformateur peut
avantageusement être disposé dans l'air à proximité du secondaire dans
l'espace annulaire entre les collerettes 13A et 13B, et un carter de protection
17 amovible en tôle métallique peut être fixé sur la collerette 13A ou 13B de
manière à fermer l'espace annulaire pour protéger le secondaire et son
circuit opto-électronique de l'environnement extérieur. Dans le cas particulier
de l'utilisation d'un cristal de Faraday comme circuit secondaire, le circuit
associé au secondaire peut ne comprendre que des moyens purement
optiques reliés par fibres optiques à des moyens électroniques disposés au
sol, et la partie électronique du circuit opto-électronique global n'est alors
pas soumise au potentiel de la haute tension.The secondary of the transformer is arranged around the primary 12 in
air, and can be formed by Rogowski coils or by a crystal of
Faraday. As mentioned above, each Rogowski coil such as 15
or the Faraday crystal (not shown) is inserted first on the tube of one
Dans la construction du disjoncteur colonne de la figure 1, le
transformateur de courant électronique est disposé à l'interface entre le tube
2 de la chambre de coupure et la colonne support 9 et est traversé par la
tige de manoeuvre 6. Plus particulièrement, la collerette 13A est fixée
coaxialement par des vis ou analogue à la collerette 8 et la collerette 13B est
fixée coaxialement par des vis ou analogues à la collerette 11. L'étanchéité
au gaz de l'interface entre le tube 2 et la colonne support 9 est assurée par
un joint torique 18 disposé entre les collerettes 13A et 8 et par un autre joint
torique 19 disposé entre les collerettes 13B et 11. Dans cette construction, la
collerette 13B sert de prise de courant pour le disjoncteur et le tube et la
colonne communiquent entre eux à travers le support annulaire 12 qui est
donc traversé par le gaz d'isolation.In the construction of the column breaker of FIG.
electronic current transformer is arranged at the interface between the
La figure 2 montre une autre construction d'un disjoncteur selon l'invention
dans laquelle le transformateur de courant électronique est disposé à
l'extrémité libre de la chambre de coupure 1. Plus particulièrement, le tube 2
formant la chambre de coupure a son extrémité munie d'une bride annulaire
métallique 20 sur laquelle est fixée coaxialement la collerette 13A du support
12. La collerette 13B sert de prise de courant pour le disjoncteur et a son
espace annulaire intérieur qui est fermé de façon étanche au gaz par un
couvercle 21. FIG. 2 shows another construction of a circuit breaker according to the invention
in which the electronic current transformer is arranged to
the free end of the
La figure 3 montre une autre construction d'un disjoncteur selon l'invention
dans laquelle le transformateur de courant électronique est disposé à
l'interface entre la chambre de coupure 1 et un carter 22 métallique
renfermant une résistance de fermeture 23. Cette construction correspond
plus particulièrement à un montage en T de deux disjoncteurs sur une
colonne support, l'axe A du tube 2 s'étendant horizontalement
perpendiculairement à la colonne support. Sur la figure 3, on voit que la
bride annulaire métallique 20 montée à l'extrémité du tube 2 est fixée
coaxialement à la collerette 13A du support 12 et la collerette 13B du
support 12 est fixée coaxialement à une bride annulaire métallique 24
prévue sur le carter 22. La collerette 13B sert encore de prise de courant
pour le disjoncteur et le carter 22 et le tube 2 communiquent entre eux à
travers le support annulaire 12 traversé par le gaz d'isolation. Le support 12
interposé de façon étanche entre le carter 22 et le tube 2 est également
traversé par un conducteur électrique 30 qui s'étend dans le gaz d'isolation
entre la résistance de fermeture 23 dans le carter 22 et un contact dans le
tube 2.FIG. 3 shows another construction of a circuit breaker according to the invention
in which the electronic current transformer is arranged to
the interface between the
Selon l'invention, un transformateur peut également être disposé à
l'interface d'une chambre de coupure et d'un carter de raccordement de
deux disjoncteurs montés en T sur le dessus d'une colonne support. Sur la
figure 5, dans une telle configuration de disjoncteurs en T, un carter 31
raccorde les chambres de coupure 1A et 1B des deux disjoncteurs et
surmonte une colonne isolante support 32, ces chambres s'étendant
perpendiculairement à la colonne support 32 de part et d'autre du carter 31.
De même que pour les réalisations montrées aux figures précédentes,
chaque transformateur de courant comprend un support annulaire 12
formant le primaire, un secondaire 15 entourant le primaire 12, et un carter
de protection 17 renfermant le circuit optoélectronique avec le secondaire.
Les primaires des deux transformateurs de courant sont interposés de façon
étanche d'une part entre la chambre de coupure 1A et le carter 31 et d'autre
part entre le carter 31 et la chambre de coupure 1B.According to the invention, a transformer can also be arranged to
the interface of a breaking chamber and a connection housing of
two T-circuit breakers on the top of a support column. On the
Figure 5, in such a configuration of T circuit breakers, a
Ainsi la conception du transformateur de courant électronique dans un disjoncteur selon l'invention rend ce transformateur modulaire et adaptable à de nombreuses configurations de montage sans compromettre ses performances.So the design of the electronic current transformer in a circuit breaker according to the invention makes this transformer modular and adaptable to many mounting configurations without compromising its performance.
Dans le disjoncteur colonne des figures 1 et 2, les signaux de mesure
récupérés par le circuit opto-électronique 16 peuvent être conduit au sol par
des fibres optiques non représentées guidées à l'extérieur de la colonne
support 9 et/ou du tube formant la chambre de coupure. Sur la figure 4, ces
fibres optiques 24 sont guidées vers le sol par l'intérieur d'un isolateur
colonne 26 disposé parallèlement à la colonne support de la chambre de
coupure 1 du disjoncteur.In the column breaker of FIGS. 1 and 2, the measurement signals
recovered by the opto-
Claims (10)
- A single phase, high voltage circuit-breaker comprising at least one interrupting chamber (1, 1A, 1B) formed by an insulating tube (2) extending in an axial direction (A) and filled with an insulation gas, incorporating for at least one interrupting chamber a current transformer comprising a primary and a secondary, the secondary.(15) being placed in air around the primary at one end of said tube (2), the primary being at the high voltage electrical potential of the phase and the secondary (15) being subject to a high voltage potential quasi-equal to that of the primary, characterized in that said primary is constituted by a metallic, annular support (12) fixed to a metallic, annular flange (5, 20), said annular flange being located at one end of said tube (2) and electrically connected to a contact (4) of the circuit-breaker, and that the inner, annular space of said support (12) communicates with the volume of said tube (2) in order to be filled with the same insulation gas by effecting a seal between said gas and the external atmosphere.
- The circuit-breaker according to claim 1, wherein said annular support (12) comprises an annular portion (12A) having an external collar (13A), which is coaxially fixed to said annular flange (5, 20).
- The circuit-breaker according to claim 2, wherein said annular support (12) comprises another annular portion (12B), which is fitted coaxially and tightly into said annular portion (12A).
- The circuit-breaker according to claim 3, wherein each of the two annular portions (12A, 12B) has a hollow, cylindrical member, said other annular portion (12B) being provided at one end with another external collar (13B) which can serve as a power outlet.
- The circuit-breaker according to claim 4, wherein said secondary (15) is associated with an optoelectronic circuit and is positioned with the latter in the external, annular space between the two external collars (13A, 13B) of said annular support (12), said external, annular space being sealed by a detachable casing (17).
- The circuit-breaker according to one of the claims 1 to 5, wherein said secondary (15) is constituted by Rogowski coils or a Faraday crystal.
- The circuit-breaker according to one of the claims 1 to 6, wherein the tube (2) housing the interrupting chamber is fitted coaxially to a support column (9), the annular support (12) being tightly interposed between said tube and said support column, the tube (2) and column (9) communicating through said annular support.
- The circuit-breaker according to claim 7, wherein said annular support (12) is traversed by an insulating, operating rod (6) extending into the insulation gas between said tube (2) and said support column (9) and which is able to displace a contact (4) of the circuit-breaker.
- The circuit-breaker according to one of the claims 1 to 6, comprising a closure resistor (23) and in which said annular support (12) is tightly interposed between a casing (22) of said closure resistor and the tube (2) forming the interrupting chamber, the casing and the tube communicating through the annular support.
- The circuit-breaker according to one of the claims 1 to 6, wherein the two interrupting chambers (1A, 1B) are T-connected to a support column (32) by means of a connecting casing (31) and wherein an annular support (12) is tightly interposed between each interrupting chamber and said connecting casing.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0011966 | 2000-09-20 | ||
FR0011966A FR2814275B1 (en) | 2000-09-20 | 2000-09-20 | GAS INSULATED CIRCUIT BREAKER WITH AN INTEGRATED ELECTRONIC CURRENT TRANSFORMER |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1191564A1 EP1191564A1 (en) | 2002-03-27 |
EP1191564B1 true EP1191564B1 (en) | 2004-08-11 |
Family
ID=8854480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01402352A Expired - Lifetime EP1191564B1 (en) | 2000-09-20 | 2001-09-12 | Gas insulated circuit breaker with integrated electronic current transformer |
Country Status (5)
Country | Link |
---|---|
US (1) | US6414257B1 (en) |
EP (1) | EP1191564B1 (en) |
AT (1) | ATE273560T1 (en) |
DE (1) | DE60104788T2 (en) |
FR (1) | FR2814275B1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10308708A1 (en) * | 2003-02-28 | 2004-09-09 | Hentze-Lissotschenko Patentverwaltungs Gmbh & Co.Kg | Apparatus for striking an object with laser beams such as in a laser imaging system having a lens array between a laser source and an array of control elements |
US7910852B2 (en) * | 2008-02-07 | 2011-03-22 | Eaton Corporation | Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same |
DE102010027423A1 (en) * | 2010-07-14 | 2012-01-19 | Siemens Aktiengesellschaft | Polyphase gas-insulated cable entry module with encapsulation |
CA2939796A1 (en) | 2014-02-20 | 2015-08-27 | Cooper Technologies Company | Modular switchgear insulation system |
USD800667S1 (en) | 2015-02-20 | 2017-10-24 | Cooper Technologies Company | Modular switchgear insulation device |
CN105810492B (en) * | 2016-04-08 | 2019-01-01 | 国家电网公司 | A kind of breaker |
CN105719888A (en) * | 2016-04-28 | 2016-06-29 | 国网吉林省电力有限公司电力科学研究院 | Integrated electronic current and voltage transformer circuit breaker |
CN109686612A (en) * | 2019-02-20 | 2019-04-26 | 浙江法拉迪电力科技有限公司 | Breaker column support type pole on one or two fusion serial columns of one kind |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB782264A (en) * | 1953-12-07 | 1957-09-04 | Hans Ritz Dr Ing | Improvements in or relating to current transformers |
US3114815A (en) * | 1959-11-18 | 1963-12-17 | Westinghouse Electric Corp | Fluid-blast circuit interrupter with improved current-transformer housing means |
US4117288A (en) * | 1976-06-25 | 1978-09-26 | Westinghouse Electric Corp. | Vacuum type circuit interrupter with a contact having integral axial magnetic field means |
US4272661A (en) * | 1978-03-09 | 1981-06-09 | Gould Inc. | High speed vacuum interrupter |
FR2525807B1 (en) * | 1982-04-22 | 1985-05-31 | Alsthom Atlantique | CIRCUIT BREAKER WITH INCORPORATED CURRENT TRANSFORMER |
DE3614206A1 (en) * | 1986-03-21 | 1987-09-24 | Bbc Brown Boveri & Cie | HIGH VOLTAGE SWITCH |
DE4008421C2 (en) * | 1990-03-16 | 1993-10-07 | Asea Brown Boveri | execution |
DE19608285A1 (en) * | 1996-02-23 | 1997-08-28 | Siemens Ag | High voltage outdoor switch |
-
2000
- 2000-09-20 FR FR0011966A patent/FR2814275B1/en not_active Expired - Fee Related
-
2001
- 2001-09-12 AT AT01402352T patent/ATE273560T1/en not_active IP Right Cessation
- 2001-09-12 EP EP01402352A patent/EP1191564B1/en not_active Expired - Lifetime
- 2001-09-12 DE DE60104788T patent/DE60104788T2/en not_active Expired - Lifetime
- 2001-09-14 US US09/951,390 patent/US6414257B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60104788T2 (en) | 2005-09-01 |
DE60104788D1 (en) | 2004-09-16 |
FR2814275B1 (en) | 2003-05-09 |
EP1191564A1 (en) | 2002-03-27 |
US20020036185A1 (en) | 2002-03-28 |
FR2814275A1 (en) | 2002-03-22 |
US6414257B1 (en) | 2002-07-02 |
ATE273560T1 (en) | 2004-08-15 |
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