EP2198443B1 - Disjoncteur haute tension isolé par gaz et doté d'un canal de délestage commandé par une soupape de surcourant - Google Patents

Disjoncteur haute tension isolé par gaz et doté d'un canal de délestage commandé par une soupape de surcourant Download PDF

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Publication number
EP2198443B1
EP2198443B1 EP07821371A EP07821371A EP2198443B1 EP 2198443 B1 EP2198443 B1 EP 2198443B1 EP 07821371 A EP07821371 A EP 07821371A EP 07821371 A EP07821371 A EP 07821371A EP 2198443 B1 EP2198443 B1 EP 2198443B1
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EP
European Patent Office
Prior art keywords
gas
arc
pressure
section
breaker according
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.)
Not-in-force
Application number
EP07821371A
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German (de)
English (en)
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EP2198443A1 (fr
Inventor
Martin Seeger
Lutz Niemeyer
Arthouros Iordanidis
Christian Franck
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 Research Ltd Switzerland
ABB Research Ltd Sweden
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ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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Publication of EP2198443A1 publication Critical patent/EP2198443A1/fr
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Publication of EP2198443B1 publication Critical patent/EP2198443B1/fr
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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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/98—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being initiated by an auxiliary arc or a section of the arc, without any moving parts for producing or increasing the flow
    • 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
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H01H33/74—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber 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
    • H01H2033/908—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 using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume

Definitions

  • the invention relates to a gas-insulated high-voltage circuit breaker according to the preamble of patent claim 1.
  • Gas-insulated high-voltage switches are used in a high-voltage electrical network to switch on and off currents that range from very small inductive and capacitive currents through normal load currents to medium and large short-circuit currents.
  • switches in the voltage range of up to a few hundred kV can be used to switch off short-circuit currents in the range of 50 and more kA.
  • a gas-insulated high-voltage circuit breaker of the aforementioned type comprises two along a axis relative to each other movable arcing contacts, an insulating nozzle, a heating volume for receiving quenching gas, a heating channel and a pressure relief valve.
  • the pressure of the quenching gas is determined by the energy of a formed when opening the switch and arc gas generating switching arc and opens the heating channel axially aligned in the heating volume.
  • the heating channel connects one of the two arcing contacts axially and the insulating radially limited arc zone with the heating volume and limits the pressure relief valve, the pressure of the extinguishing gas by opening an opening into an expansion chamber discharge channel.
  • an insulating gas is used with good arc extinguishing properties, which is compressed during the turn-off and subsequently as arc gas blows the arc until it goes out at the zero crossing of the current to be interrupted.
  • a heating flow triggered by the switching arc in the arc zone and the size of the heating volume are optimally adapted to small and medium-height flows, since the flow would otherwise be much too low for high currents and no extinguishing gas pressure high enough for successful arc blowing Therefore, when switching large currents, arc gas of high pressure and high temperature can form in the arc zone, which mechanically and thermally charges both the insulating nozzle and the heating volume, and at the same time has unfavorable extinguishing gas properties due to the high temperature.
  • a switch of the type mentioned is in DE 44 12 249 A1 described.
  • This switch has a by the pressure of the extinguishing gas elastically expandable heating volume with an adjustable against a restoring force boundary wall.
  • the heating volume is increased by moving the boundary wall so that more hot extinguishing gas can now be stored in the heating volume.
  • a pressure relief valve arranged in a radially aligned wall of the heating volume is provided at very high currents, which leads the extinguishing gas above an limit value of the extinguishing gas pressure over an axially extending discharge channel into an expansion space.
  • An in DE 198 59 764 A1 described switch has storage means which serve in the high-current phase of an alternating current to be switched off a storage of heated gas, which is formed when switching off the current through a burning in an arc zone switching arc.
  • the heating action of the switching arc decreases and the heated gas flows first from a small control volume of the storage means via a channel and a gap into the arc zone. Since the control volume is much smaller than an erase volume of the storage means, the control volume empties much faster than the extinguishing volume. As a result, the gas pressure in the control volume drops sharply and a wall separating the two volumes is displaced, whereby an extinguishing opening is released and the channel is closed ..
  • Comparatively cool gas from the extinguishing volume is now passed through the extinguishing opening and the gap in the arc zone, in which it inflates the switching arc and relaxes over a bottleneck of an insulating and a bottleneck of a hollow contact piece in an expansion space.
  • the invention has for its object to provide a switch of the type mentioned above, limited in the switching of large currents, the pressure of the arc gases in the arc zone and at the same time the quality of the stored in the heating volume extinguishing gas is improved.
  • the pressure relief valve controlled discharge channel has a radially extending outflow section
  • the pressure relief valve controlled discharge channel has a radially extending outflow section
  • the hot arc gas entering axially into the heating volume is removed radially from the heating volume.
  • a caused by the axially flowing hot arc gas circulation of the extinguishing gas in the heating volume is largely suppressed, thereby keeping the temperature of the extinguishing gas provided in the heating volume low.
  • the length of the insulating nozzle in the axial direction can be kept small, since now the maximum pressure of the arc gas is limited in the arc zone,
  • the outflow section branches off from a cylindrically formed and axially extended constriction of the insulating nozzle, the pressure of the arc gas in the arc zone and thus also in the heating volume is very effectively limited when very high-performance switching arcs occur. If the pressure relief valve responds, the switching arc generally extends over the entire length of the nozzle throat. It then form right and left of the outflow section in the nozzle throat two stagnation points of an arc gas flow, which escapes with a located between the two stagnation points partial flow through the outflow of the open discharge channel into the expansion space.
  • the gas pressure in the insulating nozzle is reduced virtually instantaneously, and thus the insulating nozzle and the heating volume are extremely quickly protected from unacceptably high load by hot arc gas.
  • a generally sufficiently strong reduction of the gas pressure is achieved if the flow cross section of the outflow section is equal to or greater than the flow cross section of the constriction.
  • the outflow section is arranged in the middle of the constriction, since then the reduction of the gas pressure in the arc zone after response of the pressure relief valve is particularly large and is nearly 50%.
  • the outflow section is stirred as part of the heating channel.
  • at least one axially extended section of the relief channel adjoins the outflow section with advantage is a ring-shaped valve body, the pressure relief valve slidably mounted in the axially extending channel portion. The arc gas removed from the arc zone after the response of the pressure relief valve then passes into the expansion space at a dielectrically uncritical location.
  • valve member of the pressure relief valve may be formed in manufacturing technology simple manner as a spring-loaded plate which closes the axially extended portion of the discharge channel below the set pressure.
  • a good outflow behavior also has an embodiment of the switch according to the invention, in which the outflow section as a function of the pressure of the arc gas formed in the arc zone above a limit of the Arc gas pressure is variable.
  • the outflow cross section is then in the general part of the pressure relief valve and can be easily integrated together with this in the insulating, especially if a movable valve body of the pressure relief valve is part of the insulating. Forms an axially extending portion of the nozzle throat this valve body, so a discharge section is reached, which is arranged in the insulating nozzle. If, on the other hand, the nozzle throat forms the valve body, an outflow section is achieved which is formed as an inlet of the heating channel connected to the arc zone.
  • the bottleneck of the insulating completely or partially forming the valve body are advantageously mounted at least two radially outwardly extending sliding body, each mounted in one of two circumferentially offset from each other, arranged axially aligned guideways and acted upon by a restoring force.
  • the discharge channel In order to achieve a high mechanical strength of the insulating nozzle, the discharge channel generally has a plurality of circumferentially uniformly distributed around the axis axially spaced channel sections.
  • the insulating nozzle In order to homogenize the electric field acting on the insulating nozzle, the insulating nozzle carries on an axially extending portion of its outer side an electrically conductive shield. In the pressure relief valve metal components used if necessary and in the discharge channel or in other cavities of the insulating optionally still present hot arc gases then do not affect the dielectric strength of the insulating.
  • the pressure of the arc gas in the Isolierdüse can also be limited by the outflow portion includes an opening formed in a tubular contact carrier of a rigidly connected to the insulating arc contact and closed below a limit of the quenching gas pressure with a responsive to differential pressure, movable valve body of the pressure relief valve is.
  • the opening at the mouth of the heating channel is arranged in the heating volume and connects the heating volume with the expansion space when the pressure relief valve is open, then a predominantly axially emerging from the heating channel Ray hot arc gas deflected at the opening and guided in the radial direction through the opening acting as a discharge portion of the discharge channel opening in the radially from the tubular contact carrier part of the expansion space.
  • the valve body is designed as an axially aligned sleeve and loaded with the differential pressure between the heating channel and heating volume or between the heating volume and expansion space or a compression space. It then ranges from a small differential pressure to move the sleeve axially and so with little force and with a short response time to control the pressure relief valve, which is briefly prevented after reaching the set pressure, the penetration of hot arc gas into the heating volume.
  • a sufficiently high for a safe control of the pressure relief valve differential pressure is available when the valve body is designed as a radially displaceable part and with the differential pressure between the arc zone and heating volume, between the heating volume and expansion space or between the arc zone and expansion space is resilient.
  • a pressure relief of the arc zone and thus also of the heating volume is also achieved in that the discharge channel is guided by the arc zone through a limited by an auxiliary nozzle and the arcing contact, axially extending portion of the discharge channel and designed as an opening of the contact carrier outflow into the expansion space, and that the valve body is formed as an axially aligned sleeve and with the differential pressure between the axially extending channel portion of the discharge channel and the heating volume, a compression space or the expansion space is loaded.
  • FIGS. 1 to 13 seven different embodiments of the high-voltage circuit breaker according to the invention, of which the FIGS. 1 . 4 . 7 . 9 . 10 . 11 and 13 each show a plan view of an axially guided section through an above-axis part of one of seven embodiments of the switch when turned off, the Figures 2 . 5 . 8th and 12 in turn, each one of the embodiments of the switch according to the FIGS. 1 . 4 . 7 and 11 when limiting overpressure during turn off, and the Fig. 3 and FIG. 6 is a plan view of a section through the switch taken along sections III-III and VI-VI, respectively Fig.1 or 4 shows ..
  • FIGS. 2 to 13 the reference numerals are partially omitted.
  • the illustrated in the figures seven embodiments of the high-voltage circuit breaker according to the invention each contain a with a compressed insulating gas, such as based on sulfur hexafluoride, nitrogen, oxygen or carbon dioxide or mixtures of these gases with each other, for example air, filled quenching chamber housing 1 and one of From the illustrated during a shutdown contact arrangement 2, two arcing contacts 3, 4 are shown, of which formed as a nozzle tube arc contact 3 along an axis 5 arranged movable and the arcing contact 4 is held stationary in the housing 1.
  • a compressed insulating gas such as based on sulfur hexafluoride, nitrogen, oxygen or carbon dioxide or mixtures of these gases with each other, for example air
  • Arcing contact 4 does not necessarily have to be fixed, it can also be designed to be movable.
  • the two arcing contacts 3, 4 are coaxially covered by an insulating nozzle 6 and a heating volume 7 for storing quenching gas.
  • the heating volume 7 is designed in the manner of a torus with a rectangular cross-section in the circumferential direction. With a switch designed for nominal voltages of typically 200 to 300 kV and for a nominal short-circuit breaking current of typically 50 to 70 kA, the heating volume 7 can generally accommodate approximately 1 to 2 liters of pressurized extinguishing gas.
  • the left end of the arcing contact 4 is inserted in an electrically conductive manner in the right end of the tubular arc contact 3.
  • the two arc contacts 3, 4 separate from each other and this forms a footing on the two ends of the arcing contacts arc 8, which burns in an arc zone 9.
  • the arc zone 9 is axially bounded by the two arc contacts 3, 4 and axially by the insulating nozzle 6 and an insulating auxiliary nozzle 11.
  • the heating zone 10 communicates with the heating volume 7 via a heating channel 10.
  • the heating channel 10 is partially axially guided between the insulating nozzle 6 and the insulating auxiliary nozzle 11 and opens into the heating volume 7 at an opening 12.
  • the pressure in the arc zone 9 is generally greater than in the heating volume 7.
  • the heating channel 10 then carries an arc gas stream 13 formed by the energy of the arc 8, which enters the heating volume 7 via the opening 12. If the heating effect of the arc 8 decreases as it approaches the zero crossing of the current, the flow is reversed.
  • stored quenching gas 14 flows through the opening 12 in the heating channel 7, is guided to the arc zone 9 and blows there the arc 8 at least until it is extinguished in the current zero crossing. After blowing the extinguishing gas expands into a limited by the container 1 expansion space 15th
  • the strength of the arc gas stream 13 and thus the energy flow into the heating volume 7 is determined by the energy of the arc 8.
  • the pressure of the arc gas in the arc zone 9 increases with the square the maximum current of the half-wave of the current to be disconnected. At highest short-circuit currents, the pressure in the insulating nozzle 6 can become very high and can then lead to damage to the nozzle. In addition, then very hot arc gas flows into the heating volume, which significantly reduces the quality of the extinguishing gas stored there.
  • the switch according to the invention has an opening into the expansion space 15 discharge channel 20 and a pressure relief valve 30, with the Pressure of the arc gas 13 and thus also the pressure of the extinguishing gas above a certain value of the pressure of the arc gas 13 in the arc zone 9, respectively. of the quenching gas 14 in the heating volume 7 is limited by opening the discharge channel 20.
  • the pressure relief takes place from the arc zone 9 and / or from the heating volume 7 through a radially extending outflow section 21 of the discharge channel 20. Since the pressure of the arc gases 13 is kept in the arc chamber 9 below a pressure limit, the insulating, whose Length in the axial direction proportional to the maximum acting pressure to dimension, advantageously have a short length. In addition, the insulating nozzle 6 and the heating volume 7 are thus protected from excessive thermal and mechanical stress by the hot arc gas 13.
  • an extinguishing gas 14 of good quality is thus achieved in the heating volume 7, since excessively hot and highly compressed arc gas is largely kept away from the heating volume by limiting the pressure of the arc gas 13 in the arc zone 9 above a limit value of the gas pressure. Below the pressure limit value, an axially directed flow of hot arc gas 13 into the heating volume 7 can then continue, which mixes with extinguishing gas 14 already present there with cool insulating gas. When reaching or exceeding the pressure limit, the axially entering the heating volume hot arc gas 13 is removed radially from the heating volume 7. A caused by the axially flowing hot arc gas below the pressure limit circulation of the quenching gas 14 in the heating volume then stops. The Temperature of the extinguishing gas 14 provided in the heating volume therefore remains low, so that its good quality is maintained even when particularly high-performance switching arcs occur.
  • the pressure relief taking place in the radial direction is achieved in that the outflow section 21 branches off from the cylindrically formed and axially extended constriction 16 of the insulating nozzle 6.
  • the pressure relief valve 30 has a loaded with a biased return spring 32, annular disk-shaped valve body 31 which is slidably mounted in a 32 adjacent to the channel portion 22, axially aligned recess of the insulating nozzle 6 against the force of the spring.
  • the pressure of the arc gas 13 generated mainly by heating of the insulating gas and release of gases from the material of the insulating nozzle is not sufficient to open the pressure relief valve 30
  • a portion of the gas 13 is passed through the heating channel into the heating volume 7 and mixes there with cool insulating gas to form compressed quenching gas 14.
  • the quenching gas 14 flows from the heating volume 7 via the heating channel 10 in the Arc zone 9 and inflates the switching arc 8 beyond the zero crossing until the power is definitely interrupted.
  • the pressure of the arc gas 13 in the arc zone 9 can be so large (typical values are 30 to 150 bar) that the pressure relief valve 30 opens and a part the hot arc gas 13 is removed radially from the arc zone 9 and via the discharge channel 20 and the opened pressure relief valve 30 in the Expansion space 15 flows ( Fig.2 ).
  • the switching arc 8 extends over the entire length of the nozzle throat 16, formed on the right and left of the Abströmqueritess 21 in the nozzle throat two (annularly extending around the axis 5) stagnation points S 1 and S 2 of the arc gas flow 13, with an intermediate escapes the two stagnation points located partial flow through the outflow section 21 of the open discharge channel 20 into the expansion space 15. Due to the formation of the two stagnation points, the gas pressure in the insulating nozzle 6 is reduced virtually instantaneously, and thus the insulating nozzle 6 and, accordingly, the heating volume 7 are very quickly protected against unacceptably high mechanical and thermal stress by hot arc gas 13.
  • the flow cross section of the outflow section 21 is equal to or greater than the flow cross section of the constriction 16.
  • the Isolierdüse 6 carries on an axially extending portion of its outer side an electrically conductive shield 40, which at a switching operation acting electric field homogenized in the insulating 6 and shields their radial component.
  • the discharge channel has a plurality of, here four, circumferentially uniformly distributed around the axis, axially extending channel sections 22.
  • a suitable for a sufficiently high pressure reduction dimensioned flow cross-section of the discharge channel and a high mechanical strength of the insulating 6 are switched off Figure 3
  • the valve body 31 is designed as a flat ring in a production-wise favorable manner.
  • the outflow section 21 has no constant flow area, but is variable as a function of the pressure of the arc gas formed in the arc zone above a threshold value of the arc gas pressure, like the FIGS. 4 to 6 can be seen, the outflow section 21 now belongs to the pressure relief valve 30 and is therefore integrated as this in the insulating nozzle 6.
  • the valve body 31 is formed by an annular portion of the insulating nozzle, which includes the constriction 16 of the nozzle 6.
  • valve body 31 On the valve body 31 a plurality of, here four, radially outwardly extending sliding body 33 is mounted, each mounted in one of several, here four, circumferentially offset from one another uniformly arranged axially extending guide channels 34 and are acted upon by a plurality of springs 32 with restoring force.
  • the springs 32 are set so that above a predetermined value of the pressure of the arc gas 13 of the loaded with the pressure of the arc gas 13 valve body 31 is shifted to form the radial outflow section 21 to the right and the guide channels 34 releases. How out Figure 5 can be seen, then the arc gas 13 can flow through the outflow section 21, the guide channels 34 and the channel section 22 in the expansion space 15.
  • the outflow section 21 clearly has a constant flow cross-section and is over the axially extending section 22 or a plurality of axially extended sections 22 of the relief channel 20 and the pressure relief valve 30 with the expansion space 15th connectable.
  • the outflow section 21 forms the mouth section of the heating channel 10 which merges into the arc zone 13, but the outflow section 21 now has a flow cross section which varies as a function of the arc gas pressure above a limit value of the arc gas pressure.
  • the outflow section 21 is now part of the pressure relief valve 30 and is therefore integrated into the insulating nozzle 6 like this one.
  • the outflow section 21 contains an opening which is formed in a tubular contact carrier of the arc contact 3 rigidly connected to the insulating nozzle 6. Below a limit value of the extinguishing gas pressure, the opening is closed by a pressure-responsive, movable valve body 31 of the pressure relief valve 30.
  • the relief channel 20 is guided by the arc zone 9 through an axially extended portion 23 of the relief channel 20 bounded by the auxiliary nozzle 11 and the arc contact 3 and the outflow portion 21 designed as an opening of the contact carrier into the expansion space 15.
  • the valve body 31 is formed as an axially aligned sleeve and is loadable with the differential pressure between the channel portion 23 and a piston-cylinder compression chamber 50 for generating a small amount of additional extinguishing gas ..
  • a sufficiently high differential pressure is also on the sleeve resp. the valve body 31 when the sleeve 31 is passed through the space 50 into the expansion space 15 or only into the heating volume 7.
  • the opening 21 is arranged at the junction 12 of the heating channel 10 in the heating volume 7.
  • open pressure relief valve 30 Figure 12
  • a predominantly axially emerging from the heating channel 10 jet hot arc gas 13 is then deflected with open valve 30 at the opening 21 and in the radial direction by acting as a radial outflow 21 of the discharge channel opening in the tubular contact carrier of the arcing contact 3 radially limited part of the expansion space 15 led.
  • valve body 31 is formed as an axially aligned sleeve. It can therefore - as shown easily several openings in the contact carrier of the arcing contact 3 may be present, which form the outflow section 21 and ensure a uniform outflow of the arc gases 13.
  • the opening of the pressure relief valve 30 causing differential pressure acts clearly between the heating volume 7 and the piston-cylinder compression chamber 50, in which the sleeve 21 is guided in a gas-tight manner.
  • a comparable control effect of the sleeve 21 is also achieved if it from the heating volume 7 through the Piston-cylinder compression chamber 50 is guided through into the expansion space or when it is guided from the heating channel 10 only in the heating volume 7 or by the heating volume into the compression space 50 and optionally through it into the expansion space 15.
  • valve body 31 may be formed as a radially displaceable part, as is made Figure 13 is apparent.
  • the differential pressure between the heating volume 7 and expansion space 15 acts on the valve body 31 in this embodiment of the switch according to the invention.
  • the differential pressure between arc zone 9 and expansion space 15 or between heating volume 7 and expansion space 15 can also radially load the valve body 31.
  • a separately controlled part of the pressure relief valve 30 is required for each opening 21 in the contact carrier of the arcing contact 3 as a movable valve body 31 .

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Claims (18)

  1. Commutateur de puissance à haute tension isolé par gaz et présentant
    des contacts (3, 4) d'arc lumineux qui peuvent être déplacés l'un par rapport à l'autre le long d'un axe (5),
    une buse isolante (6),
    un volume chauffé (7) qui reprend du gaz d'extinction (14) dont la pression est définie par l'énergie d'un arc lumineux de commutation (8) formé lors de l'ouverture du commutateur et produisant un gaz (13) d'arc lumineux,
    un canal chauffé (10) qui relie axialement au volume chauffé (7) l'un des deux contacts (3, 4) d'arc lumineux et la zone (9) d'arc lumineux délimitée radialement par la buse isolante (6) et qui débouche dans une orientation axiale dans le volume chauffé (7),
    un espace de détente (15) dans lequel, lors du débranchement, le gaz d'extinction (14) se détend après avoir soufflé l'arc lumineux de commutation (8),
    un canal de délestage (20) qui débouche dans l'espace de détente (15) et
    une soupape de surpression (30) qui limite la pression du gaz d'extinction (14) par ouverture du canal de délestage (20),
    caractérisé en ce que
    le canal de délestage (20) présente une partie d'évacuation (21) qui s'étend dans la direction radiale.
  2. Commutateur selon la revendication 1, caractérisé en ce que la partie d'évacuation (21) se ramifie depuis un emplacement étroit (16) de la buse isolante (6) qui a une configuration cylindrique et qui s'étend axialement.
  3. Commutateur selon la revendication 2, caractérisé en ce que la section transversale d'écoulement de la partie d'évacuation (21) est égale ou supérieure à la section transversale d'écoulement de l'emplacement étranglée (16).
  4. Commutateur selon l'une des revendications 2 ou 3, caractérisé en ce que la partie d'évacuation (21) est disposée au milieu de l'étranglement (16).
  5. Commutateur selon la revendication 1, caractérisé en ce que la partie d'évacuation (21) fait partie du canal chauffé (10).
  6. Commutateur selon l'une des revendications 2 à 5, caractérisé en ce qu'au moins une partie s'étendant axialement du canal de délestage (20) se raccorde à la partie d'évacuation (21) et en ce qu'un corps de soupape (31) de configuration annulaire de la soupape de surpression (30) est monté à coulissement dans la partie (22) s'étendant axialement du canal.
  7. Commutateur selon la revendication 6, caractérisé en ce que la partie d'évacuation (21) peut être modifiée lorsque la pression du gaz (13) d'arc lumineux formé dans la zone (9) de l'arc lumineux devient supérieure à une valeur limite de la pression du gaz de l'arc lumineux.
  8. Commutateur selon la revendication 7, caractérisé en ce que le corps de soupape (31) fait partie de la buse isolante (7) et est formé par une partie s'étendant axialement de l'étranglement (16) de la buse.
  9. Commutateur selon la revendication 7, caractérisé en ce que le corps de soupape fait partie de la buse isolante (6) et forme l'étranglement (16) de la buse.
  10. Commutateur selon l'une des revendications 8 ou 9, caractérisé en ce qu'au moins deux corps coulissants (33) qui s'étendent radialement vers l'extérieur sont installés sur le corps de soupape (31), sont montés dans l'un parmi deux canaux de guidage (34) orientés axialement et décalés l'un de l'autre dans le sens périphérique et sont sollicités par une force de rappel.
  11. Commutateur selon la revendication 6, caractérisé en ce que la partie d'évacuation (21) présente une section transversale d'écoulement constante.
  12. Commutateur selon l'une des revendications 6 à 11, caractérisé en ce que le canal de délestage (20) présente plusieurs parties (22) de canal qui s'étendent axialement et qui sont réparties uniformément autour de l'axe (5) dans le sens périphérique.
  13. Commutateur selon l'une des revendications 1 à 12, caractérisé en ce que la buse isolante (6) porte un blindage (40) électriquement conducteur.
  14. Commutateur selon la revendication 1, caractérisé en ce que la partie d'évacuation (21) contient une ouverture qui est formée dans un support tubulaire d'un contact (3) d'arc lumineux solidaire de la buse isolante (6) et est fermée en dessous d'une valeur limite de la pression de gaz d'extinction par un corps mobile (31), qui répond à la différence de pression, de la soupape de surpression (30).
  15. Commutateur selon la revendication 14, caractérisé en ce que l'ouverture (21) est disposée à l'embouchure (12) du canal chauffé (10) dans le volume chauffé (7) et relie le volume chauffé (7) à l'espace de détente (15) lorsque la soupape de surpression (30) est ouverte.
  16. Commutateur selon la revendication 15, caractérisé en ce que le corps de soupape (31) est configuré comme douille orientée axialement et peut être sollicité par la différence de pression qui règne entre le canal chauffé (10) et le volume chauffé (7) ou entre le volume chauffé (7) et l'espace de détente (15) ou un espace de compression (50).
  17. Commutateur selon la revendication 15, caractérisé en ce que le corps de soupape (31) est configuré comme pièce coulissant radialement et peut être sollicité par la différence de pression qui règne entre la zone (9) de l'arc lumineux et le volume chauffé (7), entre le volume chauffé (7) et l'espace de détente (15) ou entre la zone (9) de l'arc lumineux et l'espace de détente (15).
  18. Commutateur selon la revendication 14, caractérisé en ce que le canal de délestage (20) se prolonge depuis la zone (9) de l'arc lumineux jusque dans l'espace de détente (15) en passant par une partie (23) du canal de délestage (20) qui s'étend axialement et qui est délimitée par une buse auxiliaire (11) et le contact (3) d'arc lumineux ainsi que par la partie d'évacuation (21) configurée comme ouverture du support de contact, et en ce que le corps de soupape (31) est configuré comme douille orientée axialement et sollicitée par la différence de pression qui règne entre la partie (23) s'étendant axialement du canal de délestage (20) et le volume chauffé (7), un espace de compression (50) ou l'espace de détente (15).
EP07821371A 2007-10-16 2007-10-16 Disjoncteur haute tension isolé par gaz et doté d'un canal de délestage commandé par une soupape de surcourant Not-in-force EP2198443B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/061005 WO2009049669A1 (fr) 2007-10-16 2007-10-16 Disjoncteur haute tension isolé par gaz et doté d'un canal de délestage commandé par une soupape de surcourant

Publications (2)

Publication Number Publication Date
EP2198443A1 EP2198443A1 (fr) 2010-06-23
EP2198443B1 true EP2198443B1 (fr) 2011-02-02

Family

ID=39686014

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Application Number Title Priority Date Filing Date
EP07821371A Not-in-force EP2198443B1 (fr) 2007-10-16 2007-10-16 Disjoncteur haute tension isolé par gaz et doté d'un canal de délestage commandé par une soupape de surcourant

Country Status (6)

Country Link
US (1) US8148660B2 (fr)
EP (1) EP2198443B1 (fr)
CN (1) CN101828242B (fr)
AT (1) ATE497633T1 (fr)
DE (1) DE502007006438D1 (fr)
WO (1) WO2009049669A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102008039813A1 (de) * 2008-08-25 2010-03-04 Siemens Aktiengesellschaft Hochspannungs-Leistungsschalter mit einer Schaltstrecke
EP2415060B1 (fr) * 2009-03-30 2017-07-26 ABB Research Ltd. Disjoncteur
WO2013013112A1 (fr) 2011-07-20 2013-01-24 Pennsylvania Breaker, Llc Coupe-circuit à gaz comprimé
US9064659B2 (en) * 2013-03-12 2015-06-23 Sensata Technologies Massachusetts, Inc. Circuit interruption device with constrictive arc extinguishing feature
WO2014142942A1 (fr) * 2013-03-15 2014-09-18 Schneider Electric USA, Inc. Panneau amortisseur de pression résistant à un arc
WO2015028264A2 (fr) * 2013-08-28 2015-03-05 Abb Technology Ag Disjoncteur haute tension à isolation gazeuse
EP3149757B1 (fr) * 2014-06-02 2018-08-08 ABB Schweiz AG Interrupteur de haute tension à soufflage de gaz et unité de disjoncteur comprenant un tel interrupteur à soufflage de gaz
US9305726B2 (en) 2014-08-27 2016-04-05 Eaton Corporation Arc extinguishing contact assembly for a circuit breaker assembly
US9343252B2 (en) 2014-08-27 2016-05-17 Eaton Corporation Arc extinguishing contact assembly for a circuit breaker assembly
EP3284098B2 (fr) 2015-04-13 2022-10-05 Hitachi Energy Switzerland AG Dispositif permettant de couper seulement des courants autres que de court-circuit, en particulier sectionneur ou interrupteur de mise à la terre
DE102016105539A1 (de) * 2016-03-24 2017-09-28 Abb Schweiz Ag Elektrische Leistungsschaltvorrichtung
EP3407370B1 (fr) * 2017-05-24 2020-04-01 General Electric Technology GmbH Interrupteur à gaz comprimé comprenant une chambre de stockage de gaz optimisée
EP3503153B1 (fr) 2017-12-22 2021-09-01 ABB Power Grids Switzerland AG Disjoncteur haute ou moyenne tension isolé au gaz
EP3576125B1 (fr) * 2018-05-30 2021-02-17 ABB Power Grids Switzerland AG Disjoncteur haute tension

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Publication number Priority date Publication date Assignee Title
EP0067460B2 (fr) * 1981-06-12 1990-03-21 BBC Brown Boveri AG Disjoncteur de puissance pour haute tension
JPS58108624A (ja) * 1981-12-22 1983-06-28 三菱電機株式会社 パツフア−形ガスしや断器
FR2596575B1 (fr) * 1986-03-26 1988-05-20 Alsthom Disjoncteur a gaz dielectrique sous pression
DE4412249A1 (de) 1994-04-06 1995-10-12 Siemens Ag Elektrischer Hochspannungs-Leistungsschalter mit einem Heizraum und einem Kompressionsraum
DE19629475A1 (de) * 1996-07-10 1998-01-15 Siemens Ag Druckgasleistungsschalter
FR2751782B1 (fr) * 1996-07-23 1998-08-28 Gec Alsthom T & D Sa Disjoncteur a haute tension a auto-soufflage d'arc
DE19859764A1 (de) 1998-12-23 2000-06-29 Abb Research Ltd Selbstblasschalter
ATE369614T1 (de) * 2004-06-07 2007-08-15 Abb Technology Ag Leistungsschalter

Also Published As

Publication number Publication date
DE502007006438D1 (de) 2011-03-17
EP2198443A1 (fr) 2010-06-23
ATE497633T1 (de) 2011-02-15
CN101828242A (zh) 2010-09-08
US8148660B2 (en) 2012-04-03
US20100219161A1 (en) 2010-09-02
WO2009049669A1 (fr) 2009-04-23
CN101828242B (zh) 2013-03-13

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