EP0817228B1 - Sectionneur de puissance - Google Patents

Sectionneur de puissance Download PDF

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Publication number
EP0817228B1
EP0817228B1 EP97810388A EP97810388A EP0817228B1 EP 0817228 B1 EP0817228 B1 EP 0817228B1 EP 97810388 A EP97810388 A EP 97810388A EP 97810388 A EP97810388 A EP 97810388A EP 0817228 B1 EP0817228 B1 EP 0817228B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
breaker according
contact
designed
annular gap
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.)
Expired - Lifetime
Application number
EP97810388A
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German (de)
English (en)
Other versions
EP0817228A2 (fr
EP0817228A3 (fr
Inventor
Lorenz Dr. Müller
Benedikt Löpfe
Martin Dr. Seeger
Joachim Stechbarth
Kurt Dr. Kaltenegger
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.)
ABB Asea Brown Boveri Ltd
ABB AB
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0817228A2 publication Critical patent/EP0817228A2/fr
Publication of EP0817228A3 publication Critical patent/EP0817228A3/fr
Application granted granted Critical
Publication of EP0817228B1 publication Critical patent/EP0817228B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—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
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • H01H33/703—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle having special gas flow directing elements, e.g. grooves, extensions

Definitions

  • the invention is based on a circuit breaker according to the preamble of claim 1.
  • a circuit breaker which has an arcing chamber with two erosion contacts, one of which is designed to be movable.
  • the quenching chamber is filled with an insulating gas, preferably SF 6 gas under pressure.
  • a nominal current path is arranged concentrically around the erosion contacts and carries the current when the arcing chamber is switched on.
  • a heating volume is provided inside the movable nominal current contact, which can be supplied with hot gas from the arc zone of the quenching chamber under increased pressure.
  • the heating volume is connected to the arc zone by means of a narrow heating duct. This heating channel is comparatively long, and it also has a right-angled bend.
  • the heating volume is additionally supplied with cold gas in a known manner when switching off from a compression volume.
  • the Heating volume is rigid with the fixed erosion contact connected.
  • the circuit breaker is the mixing of the cold in the heating volume Insulating gas with the hot gas flowing in when it is switched off not be particularly effective.
  • the Pressure increase in the heating volume somewhat delayed, because for the heating of the insulating gas in the intermediate volume in advance must be used.
  • the invention as set out in the independent claims is marked, solves the task one To create circuit breakers at which the mixing of the cold insulating gas in the heating volume with the inflowing hot gas is significantly improved and at which the pressure increase in the heating volume is no temporal Experiencing delay.
  • Heating volume immediately adjacent to the arc zone is arranged occur both when the hot gases flow away in the heating volume as well as when blowing the Arc out of the heating volume only small Flow losses, making it a particularly effective Cooling of the arc is guaranteed.
  • the pressure build-up in the heating volume is advantageously rapid since no intermediate dead volume is delayed can impact.
  • the switch pin is in the center of the contact zone along the central axis extends, arranged and can with a advantageously small diameter and thus with a particularly small mass can be executed.
  • This low mass Switch pin can be used with a comparatively small and advantageous cheap drive effectively accelerated and reliably braked again at the end of the switch-off movement become.
  • the arc zone is in the area inside the insulating tube arranged.
  • the nominal current path in particular their Contact fingers and the contact surfaces on which they slide, are therefore very good against the direct effects of Arc protected, making their stability and so that their lifespan is advantageously increased.
  • the Maintenance intervals of the circuit breaker are thereby extended, so its availability is essential is increased.
  • the related to the Geometry of the annular gap symmetrical arrangement of the Heating volume means that the entire heating volume evenly filled and mixed, so that total volume for storing the for blowing the Arc gas mixture to be provided can.
  • the targeted partial closing of the ring gap when Hot gas enters the heating volume by means of Breakthrough rings made of insulating material brings the advantage that on the one hand disturbing, from Arc-related influences from the heating volume be kept away, and on the other hand that hot gas flowing through is effectively swirled so that in the heating volume a particularly intensive mixing of the Hot gas can be done with the compressed insulating gas.
  • FIG. 1 shows a greatly simplified section through the contact zone 1 of a first embodiment of the arcing chamber of a circuit breaker according to the invention in the switched-on state.
  • This quenching chamber is arranged symmetrically about a central axis 2.
  • the housing which generally encloses this contact zone 1 is not shown.
  • This housing is filled with an insulating medium, for example SF 6 gas under pressure.
  • a centrally arranged, cylindrical, metallic switching pin 3 extends along this central axis 2 and can be moved along the central axis 2 by means of a drive (not shown).
  • the switching pin 3 has a dielectrically favorably shaped tip 4, which can be provided with an electrically conductive, erosion-resistant material if required.
  • the switching pin 3 In the switched-on state, the switching pin 3 covers an annular gap-like distance a, which is provided between an rotationally symmetrical insulating nozzle 6 and a contact cover 5 made of an insulating material and likewise rotationally symmetrical.
  • the switching pin 3 is electrically conductive and generally slidably connected to a first, not shown, power connection of the arcing chamber arranged on the left side.
  • the insulating nozzle 6 and the contact cover 5 are mechanical rigidly connected and are common along the central axis 2 movable.
  • the insulating nozzle 6 and the Contact cover 5 close the when switching off Arc zone of the circuit breaker.
  • the Contact cover 5 is made of an erosion-resistant Made of insulating material.
  • the contact cover 5 surrounds a springy, on the surface of the Switch pin 3 overlying, electrically conductive Contact basket 8.
  • the contact cover 5 is mechanically rigid connected to the contact basket 8.
  • the insulating nozzle 6 is on similar to the side facing the contact cover 5 formed like the contact cover 5, it has a cap 9, which consists of erosion-resistant insulating material.
  • the insulating nozzle 6 has a holding part 10 made of a Insulating material, which on the one hand carries the cap 9 and on the other hand with a holding flange 11 made of metal connected is.
  • a holding flange 11 made of metal connected is.
  • the actuators attached which is connected to the retaining flange 11 Move assembly.
  • a cylindrical one Insulated tube 12 which is concentric with central axis 2 is arranged and which is the insulating nozzle 6 and the contact cover 5 mechanically rigidly connects and a heating volume 13 encompassing this in a radial manner Direction limited.
  • the holding flange 11 has an outside Collar 14 on the in a fixed metallic Contact cylinder 15 slides.
  • the contact cylinder 15 facing outside of the collar 14 is not shown guide rings made of plastic, provided.
  • the fixed contact cylinder 15 is on the left side with the first power connection, not shown, the Extinguishing chamber rigidly connected.
  • the contact cylinder 15 is in the area located radially outside the insulating tube 12 provided with resilient contact fingers 16, one side is rigidly connected to the contact cylinder 15, for example by means of soldering or by caulking or pressing or by means of a screw connection.
  • the resilient ends of the contact fingers 16 lie on the Outside of a cylindrical shape, along the central axis 2 movable counter contact 17, whereby, when the arcing chamber is switched on, the perfect one Current transfer between the counter contact 17 and the Contact cylinder 15 is ensured.
  • the counter contact 17 is by means of sliding contacts, not shown, with a second power connection, also not shown Extinguishing chamber connected on the right side. This last The current path described is referred to as the nominal current path.
  • the counter contact 17 is on the contact cylinder 15 facing side designed dielectric favorable. Of the Mating contact 17 is on this side with an electrical conductive cylinder bottom 18 provided. At this cylinder bottom 18, the contact basket 8 is integrally formed or electrically conductive attached, which in the direction of the insulating nozzle 6 extends.
  • the contact cover 5 made of insulating material is on attached to the cylinder bottom 18, the insulating tube 12 is on this side of the heating volume 13 also by the Cylinder base 18 held.
  • Breakthroughs 19 incorporated by means of a valve flap 20 of a schematically illustrated check valve can be locked that during the switch-off process the extinguishing chamber stored in the heating volume 13 pressurized hot gas not through these openings 19 can escape.
  • a ring-shaped Compression volume 21 admitted.
  • the compression volume 21 is on the one hand through the cylinder bottom 18 and on the other hand by a fixed compression piston 22 limited.
  • the compression piston 22 leads the counter contact 17, which slides on it, and this cylindrical The sliding surface limits the compression volume 21 radially Outward direction.
  • On the cylinder bottom 18 is a tube 23 to be extended on the compression piston 22 molded, which the compression volume 21 to the inside limited.
  • the tube 23 slides inside the compression piston 22 load-bearing piston skirt 24.
  • One in the piston skirt 24 inserted sliding seal 25 seals the compression volume 21 at this point.
  • One in the outer cylinder surface of the compression piston 22 inserted sliding seal 26 seals the compression volume 21 at this point.
  • the Sliding seals 25 and 26 are designed here so that the Mating contact 17 the compression piston 22 or the Piston shaft 24 does not touch metallic, so that over the Compression piston 22 can not flow stray currents. It but is quite possible, the compression piston 22 with the not shown, second power connection of the arcing chamber to connect on the right side, and the sliding contacts, which transfer the current from the counter contact 17 to enable the power supply to the arcing chamber, in the outer cylinder surface of the compression piston 22 to install.
  • Openings 27 are in the compression piston 22 incorporated by means of a schematically represented Check valve, which has a valve flap 28, so can be locked that during the switch-off process the quenching chamber generated in the compression volume 21 pressurized gas not through these breakthroughs 27 can escape. If the check valve is open, it is Compression volume 21 with the quench chamber volume 29, which surrounds the illustrated contact zone 1, and which usually even from the one not shown Extinguishing chamber housing is connected.
  • the inner Volume 30 of tube 23 is as well as one of the holding part 10 and the holding flange 11 enclosed volume 31 with the Quench chamber volume 29 connected.
  • FIG. 2 shows a somewhat modified version compared to FIG. 1 Embodiment of the contact zone 1, namely in the area of the check valve provided with the valve flap 20 in Inside the heating volume 13 a ring-shaped Baffle 32 attached, which the contact cover 5th concentric and which for a better one Whirling through the openings 19 inflowing cold gas with the in the heating volume 13th stored hot gas.
  • the check valve is open, the valve flap 20 covers the inner opening of the baffle 32, so that the inflowing on the Valve flap 20 is deflected cold gas and flows between baffle 32 and insulating tube 12. This Redirection creates a swirl, which has the consequence that the cold gas and the hot gas in the heating volume 13 mix particularly intimately.
  • This baffle 32 can be on the outside be provided with appropriate guide vanes or other components influencing the gas flow exhibit.
  • the others belonging to contact zone 1 Components are designed the same as those in Fig.1 components shown.
  • the position shown in Fig.2 shows the arcing chamber while switching off. First it was the external nominal current path interrupted and the The breaking current then commutated to the inside Power track. When switched off, the moves to Power track belonging switching pin 3 to the left, like an arrow 33 indicates, and that assigned to the nominal current path Counter contact 17 to the right, as indicated by an arrow 34.
  • the switching pin 3 has already moved out of the contact basket 8, i.e. the Power current path is already interrupted and a through the switching pin 3 initiated arc 35 burns between the tip 4 of the switching pin 3 and the contact basket 8 in the interior of the arc zone Insulating nozzle 6 and the contact cover 5.
  • Through this Movement of the contacts becomes an annular gap 36 between the Contact cover 5 and the insulating nozzle 6 released. By this annular gap 36 can now be pressurized hot gas flow into the heating volume 13 from the arc zone.
  • FIG. 3 shows the extinguishing chamber in the off position already extinguished arc.
  • the check valve is shown here in the open position.
  • This arcing chamber has another, somewhat, compared to that shown in Fig.2 modified embodiment of the guide plate 32.
  • the Baffle 32 which inside the heating volume 13 in Area of the check valve is attached so that it is the Contact cover 5 surrounds is frustoconical here trained, namely the truncated cone tapers in Direction to the insulating nozzle 6.
  • the breakthroughs 19 are in this version, in contrast to the version according to Fig. 2, offset radially outwards.
  • the valve flap 20 covers the opening between the baffle 32 and the Isolation tube 12 and is supported against the Cylinder bottom 18 facing edge of the guide plate 32.
  • the Cold gas is released through the inner, tapered opening of the Guide plate 32 guided and accelerated.
  • the cold gas then reaches the area where the inflow of the Hot gas can take place in the heating volume 13.
  • At the a tapered end of the guide plate 32 forms a vortex so that a particularly intimate mixture of hot and Cold gas takes place.
  • This baffle 32 can be inside appropriate guide vanes or other, have components influencing the gas flow.
  • the further components belonging to contact zone 1 designed the same as those shown in Fig.1 Components.
  • Figures 1 to 3 show a circuit breaker, at which both the counter contact 17 and the switching pin 3 is designed to be movable.
  • the Mating contact 17 and the switching pin 3 with the same Speed in opposite directions emotional.
  • the patent EP 0 313 813 B1 gives for example a circuit breaker with a drive, with which this described course of movement is achieved.
  • Circuit breaker design a baffle 32 as Modification built into the heating volume 13.
  • the baffle 32 and the arrangement of the breakthroughs 19 can, as already described, modified.
  • the remaining Components are of the same design as those in FIGS. 1 to 3 components shown, so here is another No need to describe contact zone 1.
  • Circuit breaker variants can be Make spare parts management particularly cost-effective.
  • the Fig.5a shows a first constructive variant, such as the Annular gap 36, which is the connection between the Heating volume 13 and the arc zone one represents circuit breaker according to the invention, trained can be.
  • the annular gap 36 between the contact cover 5 and the cap 9 is by means of this cap 9 and Contact cover 5 attached perforated ring 38th bridged.
  • the ring 38 is usually made of one Made of insulating material. Basically, however, it is at this and the following variants, for example also possible, the insulating nozzle 6 and the electrically to form insulating contact cover 5 in one piece, and the breakthroughs required in the area of the annular gap to work directly into this part.
  • the ring 38 the is shown in section in the right part of FIG.
  • 5b shows a ring 38 which has two rows of distributed over the circumference and offset against each other Bores 43 and 44 is provided. These holes 43.44 each have an axis 45, 46, the axes 45 den Bores 43 and the axes 46 assigned to the bores 44 are.
  • the axes 45 and 46 intersect in one Intersection 47, which lies on the central axis 2.
  • Each of the axes 45 and 46 has an intersection angle ⁇ the central axis 2.
  • the cutting angle ⁇ points preferably values in the range from 45 ° to 75 ° however, other values are also conceivable, especially must axes 45 and 46 do not have the same cutting angle exhibit.
  • the cutting angle ⁇ of 65 ° has the present version of the circuit breaker as special proven favorable.
  • the holes 43 and 44 are in this Execution cylindrical, but it is also possible to make these holes 43 and 44 conical, such as this is shown in Fig.5c. Bores 43 and 44 expand towards this in this version Heating volume 13 to, otherwise they are arranged the same as the corresponding holes in Fig.5b.
  • 5d shows a ring 38 which has two rows of holes 43 and 44 distributed over the circumference are provided. These bores 43, 44 each have an axis 45, 46, the axes 45 the bores 43 and the axes 46 the Bores 44 are assigned. Cut axes 45 and 46 at an intersection 47, which is on the central Axis 2 lies.
  • the axis 45 has one Intersection angle ⁇ with the central axis 2.
  • the axis 46 each has an intersection angle ⁇ with the central axis 2 on. The intersection angle ⁇ is somewhat smaller than that Cutting angle a executed. This embodiment is then useful if the heating volume 13 is not symmetrical to Annular gap 36 is arranged.
  • Example is the part of the heating volume 13 that is to the left of Annular gap 36, or to the left of ring 38, is somewhat larger failed as the right part.
  • the greater inclination of the Bores 44 facilitate the inflow of hot gas, so that the inherently unfavorable effects of the mentioned Asymmetry of the heating volume 13 can be compensated for what a improved mixing of the heating volume 13 results.
  • Figures 6a to 6c show further constructive Design options for the direct connection between the heating volume 13 and the arc zone, and show they unwind the ring 38 with others in principle possible cross-sectional variants of the predominantly radial aligned holes 43.
  • These holes 43 lead radially away from the central axis 2, they point comparatively small cross sections.
  • the axes of these bores 43 perpendicular to the central axis 2 arranged, but it is possible to under these axes an intersection angle other than a right angle to have the central axis 2 cut.
  • For the aerodynamically favorable Design of the holes 43 are the tools of Fluid physics available.
  • annular gap 36 If no ring 38 is provided in the annular gap 36, it has proved to be particularly advantageous in terms of flow technology, form the annular gap 36 so that it is radial Direction expanded. If a particularly high hot gas pressure should be generated, the annular gap 36 is formed so that it tapers in the radial direction. They are one Many constructions of the annular gap 36 are conceivable, so that for each of the possible geometries of the heating volume 13 an optimal shape of the annular gap 36 can be achieved can.
  • the cross-section Q 1 is the area of the inner opening of the insulating nozzle 6 at its narrowest point.
  • the cross-section Q 2 is the area of the inner opening of the contact cover 5 at its narrowest point, whereby depending on the design of the contact basket 8, this narrowest point may also be in the area of the contact basket 8. This condition formulated above is also advantageously taken into account when dimensioning the openings 40 and 42 and the bores 43 and 44.
  • the contact basket 8 a blow coil is connected in series.
  • the through the Blow coil causes forced rotation of the arc 35 a higher pressure of the hot gas in the arc zone. This is particularly advantageous if the Circuit breakers for particularly low-current shutdowns is designed because then the thermal effect of the Arc 35 is significantly increased.
  • the pressurized insulating gas flows through the annular gap 36 into the heating volume 13 and there saved temporarily. Part of the pressurized However, insulating gas flows through volume 30 on the one hand into the quench chamber volume 29 and on the other hand through the Volume 31 into the quench chamber volume 29.
  • the counter contact 17 interacts with a piston-cylinder arrangement, in whose compression volume 21 during the switch-off process fresh insulating gas is compressed. This compressed fresh insulating gas becomes thermal in addition to that generated pressurized insulating gas by the Breakthroughs 19 introduced into the heating volume 13.
  • the circuit breaker according to the invention is both for Switchgear in the medium voltage range as well High-voltage switchgear particularly well suited.

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  • Circuit Breakers (AREA)

Claims (17)

  1. Sectionneur de puissance avec au moins une chambre de soufflage remplie d'un fluide isolant, présentant une symétrie de révolution, s'étendant le long d'un axe central (2) et présentant au moins un chemin de courant de puissance, avec un protège-contact (5) et une buse isolante (6) distante de ce dernier en direction axiale, avec une fente annulaire (36) entre le protège-contact (5) et la buse isolante (6), qui débouche dans un volume de chauffage (13), dans lequel il est prévu au moins deux contacts pare-étincelles dans le chemin de courant de puissance, caractérisé en ce que
    la fente annulaire (36) peut être couverte directement par un des contacts pare-étincelles et se transforme en direction radiale pour devenir directement le volume de chauffage (13) entourant les contacts pare-étincelles.
  2. Sectionneur de puissance suivant la revendication 1, caractérisé en ce que
    la fente annulaire (36) présente des parois latérales profilées de façon à favoriser l'écoulement.
  3. Sectionneur de puissance suivant la revendication 1, caractérisé en ce que
    la fente annulaire (36) est obturée par des moyens présentant des passages, qui sont prévus pour une optimisation des conditions d'écoulement dans cette région.
  4. Sectionneur de puissance suivant la revendication 2 ou 3, caractérisé en ce que
    la section transversale résiduelle (Q3) de la fente annulaire (36) ou des passages à l'endroit le plus étroit de la fente annulaire (36) satisfait la condition suivante: Q3 Q1 + Q2 = 0,8 ÷ 1,6 , dans laquelle il faut utiliser comme section transversale Q1 la surface de l'ouverture intérieure de la buse isolante (6) à son endroit le plus étroit, et comme section transversale Q2, la surface de l'ouverture intérieure du protège-contact (5) à son endroit le plus étroit.
  5. Sectionneur de puissance suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que
    la fente annulaire (36) est obturée, au moins en partie, avec une bague (38) en une matière électriquement isolante, qui présente des passages (40, 42) ou des trous (43, 44) orientés essentiellement en direction radiale.
  6. Sectionneur de puissance suivant la revendication 5, caractérisé en ce que
    la bague (38) présente une couronne intérieure de premières barrettes (39), entre lesquelles sont disposés des premiers passages (40) orientés radialement, et en ce que
    à distance de la couronne intérieure, une couronne extérieure de secondes barrettes (41), entre lesquelles sont disposés des seconds passages (42) orientés radialement, entoure la couronne intérieure d'une façon telle que les secondes barrettes (41) couvrent les premiers passages (40).
  7. Sectionneur de puissance suivant la revendication 5, caractérisé en ce que
    la bague (38) est pourvue d'au moins deux rangées de trous (43, 44) répartis sur la périphérie et décalés les uns par rapport aux autres, de forme cylindrique ou conique et présentant des axes (45, 46), en ce que
    les axes (45, 46) présentent un point d'intersection commun (47) situé sur l'axe central (2), et en ce que
    les axes (45, 46) sont inclinés en opposition l'un par rapport à l'autre et présentent chacun le même angle d'incidence (α) avec l'axe central (2).
  8. Sectionneur de puissance suivant la revendication 7, caractérisé en ce que
    l'angle d'incidence (α) se situe dans la gamme de 45° à 75°.
  9. Sectionneur de puissance suivant la revendication 5, caractérisé en ce que
    la bague (38) est pourvue d'au moins deux rangées de trous (43, 44) répartis sur la périphérie, de forme cylindrique ou conique et présentant des axes (45, 46), en ce que
    les axes (45, 46) présentent un point d'intersection commun (47) situé sur l'axe central (2), et en ce que
    les axes (45, 46) sont inclinés en opposition l'un par rapport à l'autre et présentent des angles d'incidence différents (α, β) avec l'axe central (2).
  10. Sectionneur de puissance suivant l'une quelconque des revendications 1 à 9, caractérisé en ce que
    le volume de chauffage (13) est en communication active avec un ensemble à piston-cylindre appliquant une pression au fluide isolant.
  11. Sectionneur de puissance suivant la revendication 10, caractérisé en ce que
    il est prévu, dans le volume de chauffage (13), dans la région de la communication avec l'ensemble à piston-cylindre, des moyens pour améliorer le mélange du fluide chaud avec le fluide isolant comprimé qui entre.
  12. Sectionneur de puissance suivant la revendication 11, caractérisé en ce que
    les moyens pour améliorer le mélange du fluide chaud avec le fluide isolant comprimé qui entre présentent au moins un déflecteur (32) coopérant avec un clapet de soupape (20).
  13. Sectionneur de puissance suivant la revendication 12, caractérisé en ce que
    le déflecteur (32) est disposé concentriquement à l'axe central (2), et en ce que
    le déflecteur (32) est de forme cylindrique ou conique.
  14. Sectionneur de puissance suivant l'une quelconque des revendications 1 à 13, caractérisé en ce que
    le volume de chauffage (13) est de forme annulaire et s'étend en direction axiale de façon symétrique ou asymétrique par rapport à la fente annulaire (36), et en ce que
    le volume de chauffage (13) est mobile en commun avec un des contacts pare-étincelles.
  15. Sectionneur de puissance suivant l'une quelconque des revendications 1 à 14, caractérisé en ce que
    un premier contact pare-étincelles constitué par une tige d'attaque (3) et un second contact pare-étincelles constitué par une cage de contact (8) sont mobiles en direction opposée, avec une vitesse égale ou différente.
  16. Sectionneur de puissance suivant l'une quelconque des revendications 1 à 14, caractérisé en ce que
    un premier contact pare-étincelles constitué par une tige d'attaque (3) ou un second contact pare-étincelles constitué par une cage de contact (8) est mobile chacun isolément.
  17. Sectionneur de puissance suivant l'une quelconque des revendications 1 à 16, caractérisé en ce que
    au moins un des contacts pare-étincelles est en plus monté en série avec une bobine de soufflage.
EP97810388A 1996-07-05 1997-06-18 Sectionneur de puissance Expired - Lifetime EP0817228B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19627098A DE19627098A1 (de) 1996-07-05 1996-07-05 Leistungsschalter
DE19627098 1996-07-05

Publications (3)

Publication Number Publication Date
EP0817228A2 EP0817228A2 (fr) 1998-01-07
EP0817228A3 EP0817228A3 (fr) 1998-12-23
EP0817228B1 true EP0817228B1 (fr) 1999-12-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810388A Expired - Lifetime EP0817228B1 (fr) 1996-07-05 1997-06-18 Sectionneur de puissance

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EP (1) EP0817228B1 (fr)
DE (2) DE19627098A1 (fr)

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EP1444713B2 (fr) † 2001-11-14 2009-11-11 Siemens Aktiengesellschaft Interrupteur de puissance
CN109564836A (zh) * 2016-08-02 2019-04-02 西门子股份公司 用于功率开关的断路器单元

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US7134889B2 (en) 2005-01-04 2006-11-14 Cooper Technologies Company Separable insulated connector and method
EP2371541B1 (fr) 2010-03-30 2013-06-05 Agfa Graphics N.V. Système et procédé pour la création numérique d'un support d'impression utilisant une unité de tête d'impression multiple
DE202017103766U1 (de) 2017-06-23 2017-07-18 Abb Schweiz Ag Hochspannungs-Leistungsschalter
EP3503152B1 (fr) * 2017-12-22 2020-10-14 ABB Power Grids Switzerland AG Disjoncteur haute ou moyenne tension isolé au gaz

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DE3425633A1 (de) * 1984-06-07 1985-12-12 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau Druckgasschalter
DE4103119A1 (de) * 1991-01-31 1992-08-06 Siemens Ag Druckgasschalter
DE4217232A1 (de) * 1992-05-20 1993-11-25 Siemens Ag Elektrischer Hochspannungs-Leistungsschalter
DE4221951A1 (de) * 1992-07-02 1994-01-13 Siemens Ag Hochspannungs-Leistungsschalter
DE4327844A1 (de) * 1993-08-19 1995-02-23 Driescher Spezialfab Fritz Löschkammer für Schalter, insbesodere für Lasttrennschalter
DE29509015U1 (de) * 1995-05-24 1995-08-03 Siemens AG, 80333 München Hochspannungs-Leistungsschalter mit einem feststehenden Heizvolumen

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EP1444713B2 (fr) † 2001-11-14 2009-11-11 Siemens Aktiengesellschaft Interrupteur de puissance
CN109564836A (zh) * 2016-08-02 2019-04-02 西门子股份公司 用于功率开关的断路器单元

Also Published As

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EP0817228A2 (fr) 1998-01-07
EP0817228A3 (fr) 1998-12-23
DE19627098A1 (de) 1998-01-08
DE59700816D1 (de) 2000-01-13

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