EP0201430A2 - Gas interrupter with arc blasting - Google Patents

Gas interrupter with arc blasting Download PDF

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Publication number
EP0201430A2
EP0201430A2 EP86400989A EP86400989A EP0201430A2 EP 0201430 A2 EP0201430 A2 EP 0201430A2 EP 86400989 A EP86400989 A EP 86400989A EP 86400989 A EP86400989 A EP 86400989A EP 0201430 A2 EP0201430 A2 EP 0201430A2
Authority
EP
European Patent Office
Prior art keywords
blowing
hollow part
disjunction
tube
gas
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.)
Withdrawn
Application number
EP86400989A
Other languages
German (de)
French (fr)
Other versions
EP0201430A3 (en
Inventor
Hitoshi Mizoguchi
Katsumi Suzuki
Hisatoshi Ikeda
Satoru Yanabu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Holdings SA
Original Assignee
Alstom SA
GEC Alsthom SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alstom SA, GEC Alsthom SA filed Critical Alstom SA
Publication of EP0201430A2 publication Critical patent/EP0201430A2/en
Publication of EP0201430A3 publication Critical patent/EP0201430A3/en
Withdrawn legal-status Critical Current

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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
    • H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/901—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts

Definitions

  • the present invention relates to the breaking chamber of an arc blast gas circuit breaker.
  • circuit breakers used in substations and in substations also require an increase in their circuit breaker capacity as well as high reliability.
  • To increase the reliability of a circuit breaker it is important to reduce the number of spare parts and to simplify its mechanism. To this end, reductions in the number of switch points have been planned. Therefore, it is necessary to increase the breaking capacity of each of the points of the circuit breaker.
  • the present invention aims, in view of the above considerations, to provide an arc blast gas circuit breaker which, by the efficient use of the heat energy of the arc released at the time of the tripping, allows obtain a high quality of disjunction, with a device of small size and a low motor energy.
  • the present invention offers the characteristic of using, via the hollow part of the operating tube, the energy that the arc gives off at the start of the circuit breaker tripping operation, to introduce it into the blowing chamber and use it to reinforce the pressure rise in said chamber; in addition, at the end of the disjunction maneuver, use the hollow part of the maneuvering tube as a heat dissipation duct.
  • An arc-blown gas circuit breaker comprising, in an insulating envelope of compressed gas, a fixed assembly and a movable assembly, a blast chamber placed in the movable assembly and constituted by a blowing piston and of a blowing cylinder compressing the gas which then passes through a nozzle and will cool and extinguish the electric arc produced between the fixed and movable arcing contacts, characterized in that orifices (5a) have been drilled in the hollow part (5b) of the operating tube (5) which actuates said cylinder (6), and put in communication, at the start of the disjunction maneuver, said blowing chamber (11) and the hollow part of said tube, and at the end of disjunction maneuver, they put said envelope into communication with the hollow part of the tube.
  • 1 is the fixed contact assembly, consisting of a fixed arcing contact (4) and a fixed contact (which lets current flow through) - (3).
  • 2 is the movable contact assembly composed of a hollow operating tube (5) to which a blowing cylinder (6) is fixed, a movable arcing contact (8), a movable arcing contact (which lets through the current) (9), an insulating nozzle (10).
  • the blowing cylinder (6) of the movable assembly (2) forms, with the blowing piston (7) which is attached to the fixed part (invisible in the figure), the blowing (11).
  • the orifices (5a) which connect the hollow part (5b) of the operating tube (5) and its external part, are made in such a way that, as shown in FIG. 1, they also put the interior (11) of the blowing chamber into communication with the hollow part (5b) of said tube (5), at the start of the disjunction maneuver.
  • these orifices (5a) are formed so as to protrude, at the end of the disjunction maneuver, the head (7a) of the blowing piston (7) and thus to put the surrounding gas space in communication with the interior (5b) of the operating tube (5).
  • a protuberance (5c) deflector
  • Figure 1 shows the conditions at the start of the disjunction maneuver.
  • the arc (13) produces great heat, but since the nozzle (10) is not yet sufficiently open, the capacity for tripping is zero.
  • the orifices (5a) of the operating tube have not yet protruded from the head (7a) of the blowing piston (7), and they are in communication with the interior (11) of the blowing chamber.
  • the orifices (5a) project beyond the head (7a) of the piston (7) and are in communication with the medium. Also there. is the hollow part (5b) of the operating tube (5) released in the surrounding gas and the heat emanating from the emitted arc. Under such conditions, the nozzle being already sufficiently open, the electric current can trip. As the heat trapped in the chamber (11) is almost uniformly dispersed in the cylinder, the rise in high pressure can continue until the end of the disjunction action. Consequently, the spraying, for a long time, of very rapid gas flow makes it possible to obtain a high quality of disjunction.

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  • Circuit Breakers (AREA)

Abstract

Disjoncteur à gaz à soufflage d'arc, comprenant, dans une enveloppe isolante remplie d'un gaz comprimé, un ensemble fixe et un ensemble mobile, une chambre soufflante placée dans l'ensemble mobile et constituée d'un piston de soufflage et d'un cylindre de soufflage et comprimant le gaz qui passe alors dans une buse et va refroidir et éteindre l'arc électrique produit entre les contacts d'arc fixe et mobile, caractérisé en ce que des orifices (5a) ont été percés dans la partie creuse (5b) du tube de manoeuvre (5) qui actionne ledit cylindre (6), et mettent en communication, au début de la manoeuvre de disjonction, ladite chambre soufflante (11) et la partie creuse dudit tube, et en fin de manoeuvre de disjonction, ils mettent en communication ladite enveloppe et la partie creuse du tube.Arc blast gas circuit breaker, comprising, in an insulating envelope filled with compressed gas, a fixed assembly and a movable assembly, a blower chamber placed in the movable assembly and consisting of a blowing piston and a blowing cylinder compressing the gas which then passes through a nozzle and will cool and extinguish the electric arc produced between the fixed and mobile arcing contacts, characterized in that orifices (5a) have been drilled in the hollow part (5b) of the operating tube (5) which actuates said cylinder (6), and put in communication, at the start of the disjunction maneuver, said blowing chamber (11) and the hollow part of said tube, and at the end of maneuvering disjunction, they connect said envelope and the hollow part of the tube.

Description

La présente invention est relative à la chambre de coupure d'un disjoncteur à gaz à soufflage d'arc.The present invention relates to the breaking chamber of an arc blast gas circuit breaker.

Avec l'accroissement de capacités des systèmes de transmission, les disjoncteurs utilisés dans les sous-stations et dans les postes demandent également une augmentation de leur capacité de disjonction ainsi qu'une grande fiabilité. Il est important, pour accroître la fiabilité d'un disjoncteur, de diminuer le nombre de pièces détachées et de simplifier son mécanisme. Dans ce but, ont été prévues des réductions du nombre de points de disjonction. Par conséquent, il est nécessaire d'accroître la capacité de disjonction de chacun des points du disjoncteur.With the increase in the capacity of transmission systems, circuit breakers used in substations and in substations also require an increase in their circuit breaker capacity as well as high reliability. To increase the reliability of a circuit breaker, it is important to reduce the number of spare parts and to simplify its mechanism. To this end, reductions in the number of switch points have been planned. Therefore, it is necessary to increase the breaking capacity of each of the points of the circuit breaker.

Dans les disjoncteurs à gaz à soufflage d'arc ordinaires utilisés jusqu'à présent, l'accroissement de leur capacité de disjonction nécessite une élévation de la pression. Pour ce faire, le cylindre, de grande taille est actionné à une vitesse d'ouverture rapide, le gaz à l'intérieur de la chambre soufflante monte en haute pression et est pulvérisé sur l'arc. Cependant la conséquence d'une telle méthode est que la chambre soufflante atteint de grandes dimensions et qu'il est nécessaire d'avoir un gros actionneur, ainsi disparaît l'aspect économique de la fabrication et de l'application du disjoncteur.In ordinary arc blast gas circuit breakers used hitherto, increasing their capacity of tripping requires an increase in pressure. To do this, the large cylinder is actuated at a rapid opening speed, the gas inside the blowing chamber rises at high pressure and is sprayed on the arc. However the consequence of such a method is that the blowing chamber reaches large dimensions and that it is necessary to have a large actuator, thus disappears the economic aspect of the manufacture and application of the circuit breaker.

Pour faire face à une telle perte et monter efficacement la pression du gaz à l'intérieur de la chambre soufflante, est proposée une méthode qui utilise l'énergie calorifique de l'arc. L'utilisation habile de ce type d'énergie permet d'augmenter la pression du gaz à l'intérieur de la chambre soufflante et d'obtenir une pulvérisation puissante sur l'arc, ce qui, on l'a vu, accroît la qualité de disjonction.To cope with such a loss and effectively increase the pressure of the gas inside the blowing chamber, a method is proposed which uses the heat energy of the arc. The skilful use of this type of energy makes it possible to increase the pressure of the gas inside the blowing chamber and to obtain a powerful spraying on the arc, which, as we have seen, increases the quality disjunction.

La présente invention a pour but, au vu des considérations précédentes, de proposer un disjoncteur à gaz à soufflage d'arc qui, par l'utilisation efficace de l'énergie calorifique de l'arc dégagée au moment de la disjonction, permette d'obtenir une grande qualité de disjonction, avec un dispositif de petite taille et une faible énergie motrice.The present invention aims, in view of the above considerations, to provide an arc blast gas circuit breaker which, by the efficient use of the heat energy of the arc released at the time of the tripping, allows obtain a high quality of disjunction, with a device of small size and a low motor energy.

Pour parvenir à l'objet précédemment décrit, la présente invention offre la caractéristique d'utiliser, par l'intermédiaire de la partie creuse du tube de manoeuvre, l'énergie que l'arc dégage en début de manoeuvre de disjonction du disjoncteur, de l'introduire dans la chambre soufflante et de l'utiliser pour renforcer la montée de pression dans ladite chambre; en outre, en fin de manoeuvre de disjonction, d'utiliser la partie creuse du tube de manoeuvre comme conduit d'évacuation de la chaleur.To achieve the object described above, the present invention offers the characteristic of using, via the hollow part of the operating tube, the energy that the arc gives off at the start of the circuit breaker tripping operation, to introduce it into the blowing chamber and use it to reinforce the pressure rise in said chamber; in addition, at the end of the disjunction maneuver, use the hollow part of the maneuvering tube as a heat dissipation duct.

Un disjoncteur à gaz à soufflage d'arc, comprenant, dans une enveloppe isolante rémptlie d'un' gaz comprimé, un ensemble fixe et un ensemble mobile, une chambre soufflante placée dans l'ensemble mobile et constituée d'un piston de soufflage et d'un cylindre de soufflage et comprimant le gaz qui passe alors dans une buse et va refroidir et éteindre l'arc électrique produit entre les contacts d'arc fixe et mobile, caractérisé en ce que des orifices (5a) ont été percés dans la partie creuse (5b) du tube de manoeuvre (5) qui actionne ledit cylindre (6), et mettent en communication, au début de la manoeuvre de disjonction, ladite chambre soufflante (11) et la partie creuse dudit tube, et en fin de manoeuvre de disjonction, ils mettent en communication ladite enveloppe et la partie creuse du tube.An arc-blown gas circuit breaker, comprising, in an insulating envelope of compressed gas, a fixed assembly and a movable assembly, a blast chamber placed in the movable assembly and constituted by a blowing piston and of a blowing cylinder compressing the gas which then passes through a nozzle and will cool and extinguish the electric arc produced between the fixed and movable arcing contacts, characterized in that orifices (5a) have been drilled in the hollow part (5b) of the operating tube (5) which actuates said cylinder (6), and put in communication, at the start of the disjunction maneuver, said blowing chamber (11) and the hollow part of said tube, and at the end of disjunction maneuver, they put said envelope into communication with the hollow part of the tube.

En nous référant aux figures 1 et 2, nous allons expliquer un exemple de réalisation de la présente invention.

  • La figure 1 est la coupe d'un exemple de réalisation de la présente invention, en début de manoeuvre de disjonction.
  • La figure 2 est la coupe du même exemple de réalisation en fin de manoeuvre de disjonction.
  • La figure 1 présente l'état de la chambre isolante, établie selon la présente invention, au début de la manoeuvre de disjonction, et la figure 2 montre son état en fin de manoeuvre.
Referring to Figures 1 and 2, we will explain an embodiment of the present invention.
  • Figure 1 is the section of an exemplary embodiment of the present invention, at the start of disjunction maneuver.
  • Figure 2 is the section of the same embodiment at the end of the disjunction maneuver.
  • FIG. 1 shows the state of the insulating chamber, established according to the present invention, at the start of the disjunction maneuver, and FIG. 2 shows its state at the end of the maneuver.

Dans les figures 1 et 2, 1 est l'ensemble de contacts fixe, composé d'un contact d'arc fixe (4) et d'un contact fixe (qüi laisse passer le courant) - (3). 2 est l'ensemble de contacts mobile composé d'un tube de manoeuvre creux (5) auquel sont fixés un cylindre de soufflage (6), un contact d'arc mobile (8), un contact d'arc mobile (qui laisse passer le courant) (9), une buse isolante (10). Le cylindre de soufflage (6) de l'ensemble mobile (2) forme, avec le piston de soufflage (7) qui est rattaché à la partie fixe (invisible sur la figure), le soufflage (11). Dans ledit ensemble mobile (2), les orifices (5a) qui mettent en communication la partie creuse (5b) du tube de manoeuvre (5) et sa partie externe, sont faits de telle façon que, comme le montre la figure 1, ils mettent également en communication l'intérieur (11) de la chambre soufflante avec la partie creuse (5b) dudit tube (5), en début de manoeuvre de disjonction.In Figures 1 and 2, 1 is the fixed contact assembly, consisting of a fixed arcing contact (4) and a fixed contact (which lets current flow through) - (3). 2 is the movable contact assembly composed of a hollow operating tube (5) to which a blowing cylinder (6) is fixed, a movable arcing contact (8), a movable arcing contact (which lets through the current) (9), an insulating nozzle (10). The blowing cylinder (6) of the movable assembly (2) forms, with the blowing piston (7) which is attached to the fixed part (invisible in the figure), the blowing (11). In said movable assembly (2), the orifices (5a) which connect the hollow part (5b) of the operating tube (5) and its external part, are made in such a way that, as shown in FIG. 1, they also put the interior (11) of the blowing chamber into communication with the hollow part (5b) of said tube (5), at the start of the disjunction maneuver.

Comme le montre la figure 2, ces orifices (5a) sont constitués de façon à dépasser, en fin de manoeuvre de disjonction, la tête (7a) du piston de soufflage (7) et ainsi à mettre en communication l'espace gazeux environnant avec l'intérieur (5b) du tube de manoeuvre (5). A l'extrémité du tube (5) a été ménagée une protubérance (5c) (déflecteur), destinée à attirer doucement dans les orifices (5a) le courant gazeux en direction axiale.As shown in FIG. 2, these orifices (5a) are formed so as to protrude, at the end of the disjunction maneuver, the head (7a) of the blowing piston (7) and thus to put the surrounding gas space in communication with the interior (5b) of the operating tube (5). At the end of the tube (5) has been provided a protuberance (5c) (deflector), intended to gently attract the gas stream in the axial direction in the orifices (5a).

Nous allons maintenant expliquer l'action de la présente invention à l'aide des figures 1 et 2. Comme nous l'avons énoncé auparavant, la figure 1 présente les conditions en début de manoeuvre de disjonction. L'arc (13) produit une grosse chaleur, mais comme la buse (10) n'est pas encore suffisamment ouverte, la capacité de disjonction est nulle. De même les orifices (5a) du tube de manoeuvre n'ont pas encore dépassé la tête (7a) du piston de soufflage (7), et ils sont en communication avec l'intérieur (11) de la chambre de soufflage.We will now explain the action of the present invention using Figures 1 and 2. As we stated before, Figure 1 shows the conditions at the start of the disjunction maneuver. The arc (13) produces great heat, but since the nozzle (10) is not yet sufficiently open, the capacity for tripping is zero. Similarly, the orifices (5a) of the operating tube have not yet protruded from the head (7a) of the blowing piston (7), and they are in communication with the interior (11) of the blowing chamber.

Par ailleurs, en début de manoeuvre de disjonction, la pression à l'intérieur de la chambre de soufflage (11) n'ayant pas beaucoup monté, le flux de gaz en provenance de l'arc (13) se transforme en flux (12b) qui traverse le tube de manoeuvre - (5), et pénètre brusquement dans la chambre de soufflage (11). Un flux (12c) apparat également dans les disjoncteurs à gaz à soufflage d'arc utilisés jusqu'à présent; mais le flux (12b) obtenu par la chaleur est extrêment important, et par conséquent permet de fournir efficacement de la chaleur au gaz contenu dans la chambre de soufflage (11). Cette action s'ajoutant à l'action de compression déjà existante du piston de soufflage (7) et du cylindre (6), la pression à l'intérieur de la chambre (11) est haute.Furthermore, at the start of the disjunction maneuver, the pressure inside the blowing chamber (11) not having risen much, the flow of gas from the arc (13) is transformed into a flow (12b ) which passes through the operating tube - (5), and suddenly enters the blowing chamber (11). A flow (12c) also appears in the arc blast gas circuit breakers used until now; but the flow (12b) obtained by heat is extremely important, and therefore makes it possible to efficiently supply heat to the gas contained in the blowing chamber (11). This action being added to the already existing compression action of the blowing piston (7) and the cylinder (6), the pressure inside the chamber (11) is high.

Ensuite, comme le montre la figure 2, les orifices (5a) dépassent la tête (7a) du piston (7) et sont en communication avec le milieu. Aussi la . partie creuse (5b) du tube de manoeuvre (5) est- elle libérée dans le gaz environnant et la chaleur émanant de l'arc émise. Dans de telles conditions, la buse étant déjà suffisamment ouverte, le courant électrique peut disjoncter. Comme la chaleur enfermée dans la chambre (11) est à peu près uniformément dispersée dans le cylindre, la montée en pression élevée peut se poursuivre jusqu'à la fin de l'action de disjonction. En conséquence, la pulvérisation, pendant un long moment, de flux gazeux très rapide permet d'obtenir une haute qualité de disjonction.Then, as shown in FIG. 2, the orifices (5a) project beyond the head (7a) of the piston (7) and are in communication with the medium. Also there. is the hollow part (5b) of the operating tube (5) released in the surrounding gas and the heat emanating from the emitted arc. Under such conditions, the nozzle being already sufficiently open, the electric current can trip. As the heat trapped in the chamber (11) is almost uniformly dispersed in the cylinder, the rise in high pressure can continue until the end of the disjunction action. Consequently, the spraying, for a long time, of very rapid gas flow makes it possible to obtain a high quality of disjunction.

Comme nous l'avons précisé précédemment, selon la présente invention, il est possible d'obtenir, par rapport aux exemples antérieurs, la montée en haute pression à l'intérieur de la chambre de soufflage, et donc de proposer un disjoncteur à gaz à soufflage d'arc de haute qualité de disjonction, avec une chambre de petite taille et un petit actionneur.As we have specified above, according to the present invention, it is possible to obtain, compared to the previous examples, the rise in high pressure inside the blowing chamber, and therefore to propose a gas circuit breaker with high quality arc blowout, with a small chamber and a small actuator.

Claims (1)

Disjoncteur à gaz à soufflage d'arc, comprenant, dans une enveloppe isolante remplie d'un gaz comprimé, un ensemble fixe et un ensemble mobile, une chambre soufflante placée dans l'ensemble mobile et constituée d'un piston de soufflage et d'un cylindre de soufflage et comprimant le gaz qui passe alors dans une buse et va refroidir et éteindre l'arc électrique produit entre les contacts d'arc fixe et mobile, caractérisé en ce que des orifices (5a) ont été percés dans la partie creuse (5b) du tube de manoeuvre (5) qui actionne ledit cylindre (6), et mettent en communication, au début de la manoeuvre de disjonction, ladite chambre soufflante (11) et la partie creuse dudit tube, et en fin de manoeuvre de disjonction, ils mettent en communication ladite enveloppe et la partie creuse du tube.Arc blast gas circuit breaker, comprising, in an insulating envelope filled with compressed gas, a fixed assembly and a movable assembly, a blower chamber placed in the movable assembly and consisting of a blowing piston and a blowing cylinder compressing the gas which then passes through a nozzle and will cool and extinguish the electric arc produced between the fixed and mobile arcing contacts, characterized in that orifices (5a) have been drilled in the hollow part (5b) of the operating tube (5) which actuates said cylinder (6), and put in communication, at the start of the disjunction maneuver, said blowing chamber (11) and the hollow part of said tube, and at the end of maneuvering disjunction, they connect said envelope and the hollow part of the tube.
EP86400989A 1985-05-08 1986-05-07 Gas interrupter with arc blasting Withdrawn EP0201430A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9600185 1985-05-08
JP96001/85 1985-05-08

Publications (2)

Publication Number Publication Date
EP0201430A2 true EP0201430A2 (en) 1986-12-17
EP0201430A3 EP0201430A3 (en) 1989-03-08

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EP86400989A Withdrawn EP0201430A3 (en) 1985-05-08 1986-05-07 Gas interrupter with arc blasting

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US (1) US4665289A (en)
EP (1) EP0201430A3 (en)
JP (1) JPH0797466B2 (en)
KR (1) KR890004057B1 (en)
DK (1) DK213786A (en)
ES (1) ES297033Y (en)
GR (1) GR861187B (en)
PT (1) PT82542B (en)

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DE4015179A1 (en) * 1990-05-11 1991-11-14 Licentia Gmbh COMPRESSION SWITCH
FR2763172A1 (en) * 1997-05-07 1998-11-13 Gec Alsthom T & D Sa Reduced self-compression arc extinguishing circuit breaker
US8044318B2 (en) 2007-10-03 2011-10-25 Areva T&D Sa Interrupting chamber of a circuit-breaker having two compression volumes

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JPH03269924A (en) * 1990-03-19 1991-12-02 Hitachi Ltd Gas-blast circuit-breaker
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JP4660407B2 (en) * 2006-03-27 2011-03-30 株式会社東芝 Gas insulated switch
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JPWO2014171208A1 (en) * 2013-04-18 2017-02-16 株式会社日立製作所 Gas circuit breaker
JP6289856B2 (en) 2013-10-16 2018-03-07 株式会社東芝 Gas circuit breaker
KR101763451B1 (en) * 2014-04-09 2017-08-01 현대일렉트릭앤에너지시스템(주) Circuit breaker of gas insulation switchgear
KR101657454B1 (en) * 2014-09-25 2016-09-21 현대중공업 주식회사 Gas isolated circuit breaker
EP3618088A1 (en) * 2018-08-30 2020-03-04 ABB Schweiz AG Nozzle for high or medium voltage curcuit breaker

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DE2948622A1 (en) * 1979-06-14 1980-12-18 Sprecher & Schuh Ag EXHAUST GAS SWITCH
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4015179A1 (en) * 1990-05-11 1991-11-14 Licentia Gmbh COMPRESSION SWITCH
FR2763172A1 (en) * 1997-05-07 1998-11-13 Gec Alsthom T & D Sa Reduced self-compression arc extinguishing circuit breaker
US8044318B2 (en) 2007-10-03 2011-10-25 Areva T&D Sa Interrupting chamber of a circuit-breaker having two compression volumes

Also Published As

Publication number Publication date
KR890004057B1 (en) 1989-10-18
EP0201430A3 (en) 1989-03-08
JPH0797466B2 (en) 1995-10-18
JPS62276717A (en) 1987-12-01
KR860009453A (en) 1986-12-23
DK213786A (en) 1986-11-09
PT82542B (en) 1993-01-29
US4665289A (en) 1987-05-12
DK213786D0 (en) 1986-05-07
ES297033U (en) 1989-09-01
GR861187B (en) 1986-09-09
ES297033Y (en) 1990-03-16
PT82542A (en) 1986-06-01

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