EP2801101A1 - Appareillage de coupure - Google Patents

Appareillage de coupure

Info

Publication number
EP2801101A1
EP2801101A1 EP13703377.5A EP13703377A EP2801101A1 EP 2801101 A1 EP2801101 A1 EP 2801101A1 EP 13703377 A EP13703377 A EP 13703377A EP 2801101 A1 EP2801101 A1 EP 2801101A1
Authority
EP
European Patent Office
Prior art keywords
switching
hollow
arrangement
switching gas
shell
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.)
Granted
Application number
EP13703377.5A
Other languages
German (de)
English (en)
Other versions
EP2801101B1 (fr
Inventor
Radu-Marian Cernat
Volker Lehmann
Andrzej Nowakowski
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2801101A1 publication Critical patent/EP2801101A1/fr
Application granted granted Critical
Publication of EP2801101B1 publication Critical patent/EP2801101B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • 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
    • H01H33/91—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 the arc-extinguishing fluid being air or 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
    • H01H2033/888—Deflection of hot gasses and arcing products
    • 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 invention relates to a switching device arrangement comprising an interrupter unit, with a first and a second switching contact piece, which are movable relative to each other, as well as with an emerging in a formable between the switching contact pieces switching path switching gas channel, rather passes through the interrupter unit and the switching ⁇ distance with the environment of the interrupter unit connects and which is at least partially bounded by a hollow volume vessel assembly which is connected at one end to one of the contact pieces.
  • Switching device arrangement comprises an interrupter unit with a switching path and with relatively movable switching contact pieces. To emerge in the switching path
  • a switching gas channel is provided, wel ⁇ cher springs in the switching path and passes through the Unterbre ⁇ cherü.
  • About the switching gas channel is a Ver ⁇ connection between the switching path and around the UN establishes terbrecherü.
  • the switching gas channel is delimited by a hollow-volume vessel arrangement which is connected to one of the contact pieces.
  • the switching gas channel in the interior of the vessel arrangement is designed in such a way that the switching gas channel is deflected several times by encompassing elements arranged substantially coaxially. This makes it mög ⁇ Lich to swirl hot switching gas along the flow path of cold insulating gas and finally to let abströ ⁇ men this verwirbel- te switching gas into the environment of the interrupter unit. Due to the coaxial arrangement of the elements embracing each other, the switching gas is in the axial direction pushed out. For positioning the interrupter unit insulators are provided, against which is emitted from the switching gas channel leaking switching gas.
  • the object is achieved in a Wegzieranord- tion of the type mentioned in that the hollow-volume vessel assembly at a second end opposite to the first end second end a shell-side ⁇ outlet opening of the switching gas channel has in the environment.
  • a switching device arrangement serves to establish or interrupt a current path.
  • the switchgear assembly comprises an interrupter unit with relatively movable switching contact pieces.
  • the switching contact pieces produce a current path in the contacted state and, in the separated state, secure an insulating path of the switching device arrangement.
  • a switching path is arranged, inside half which, for example, in a switching operation entste ⁇ ing switching arcs are performed.
  • the switching gap is the space within which there is a contacting / disconnection of contact regions of the switching contact pieces which can be moved relative to each other.
  • the switching path can be within a switching chamber.
  • a switching chamber limits the space in which an arc can burn.
  • a switching arc occurs, for example, as a rollover during a switch-on and as a switch-off during a switch-off.
  • the switching contact pieces can be designed, for example, as rated current contact pieces, as arcing contact pieces or as combined nominal and arcing contact pieces. Especially in high voltage use when switching high power, it is advantageous to use separate Nennstrom- and arcing contact pieces, so that in the on state, a nominal current is preferential ⁇ way out low-resistance rated current contact pieces.
  • arcs occurring during a turn-off operation or a turn-on operation are preferably routed to the arcing contact pieces, which have a high resistance to thermal effects of an arc.
  • the switching contact pieces can preferably be mutually linearly displaceable against ⁇ so that for producing or releasing an electrically conductive connection between the switching contact pieces of a linear movement is necessary.
  • bolt-shaped switching contact pieces have proven to be advantageous, which are aligned with its bolt longitudinal axis coaxial with a counter-shaped bush-shaped switching contact piece. It can be provided that for generating a relative movement, only one of the switching contact pieces is driven and the other switching contact piece remains at rest. However, it can also be provided that both switching contact pieces are movably ge ⁇ stored.
  • a switching gas channel is ⁇ directed, which springs in the switching path and in the area of the switching path has an inlet opening.
  • the switching gas channel may extend only to ei ⁇ ner potential side of the switching path. So a potential transfer via the switching path of time is entge ⁇ counteracted. Driven by a pressure increase from the arc inside the switching path, this flows
  • the switching gas channel is limited at least in sections by the hollow-volume vessel arrangement.
  • hohlvolumige Gefäßan ⁇ order to hollow bodies which receive the switching gas in their interior and are guided.
  • Such a hollow body can, for example, each be substantially balloon-shaped, bottle-shaped, rotationally symmetrical, hollow-cylindrical, etc.
  • This hohlvolumige vessel order must have a ent ⁇ speaking resistance to off by the switching gas continuous pressures and thermal loads.
  • the hollow-volume vessel arrangement should provide a section of the switching ⁇ gas channel after a breach of the switching gas from the switching path available, in which the switching gas can relax, ie expand and swirl.
  • the hollow-volume vessel arrangement should serve as an expansion volume.
  • the hollow-volume vessel arrangement can be formed in one or more pieces.
  • the hohlvo ⁇ lumige vessel assembly having a base body, for example in the manner of a hood, which is for example preferably formed substantially rotationally symmetrical.
  • the hollow-volume vessel arrangement has a relation to the switching distance increased volume, so that within the hollow volume Vessel arrangement is formed a relaxation volume, in which the switching gas can experience a pressure reduction and temperature reduction.
  • the hollow-volume vessel arrangement as well as the switching path should be filled with an electrically insulating fluid.
  • insulating gases or insulating liquids are suitable as electrically insulating fluids. Nitrogen and sulfur hexafluoride have proven to be advantageous.
  • Insulating fluid may be inflated in its pressure.
  • the Isolierfluo- rid should it flush preferably the interrupter unit umspü ⁇ len and the interrupter unit.
  • the insulating fluid located outside the interrupter unit forms the surroundings of the interrupter unit, wherein the switching gas discharges the switching gas which has been transferred from the switching path into the environment of the interrupter unit.
  • About the outlet ⁇ opening the switching gas leaves the switching gas channel and enters the environment.
  • the use of one or more outlet openings may be provided.
  • the switching gas is introduced into the switching gas channel.
  • the switching gas channel can be limited, for example, by a switching contact piece.
  • a possibility is given to initiate the switching gas in a short way directly at the place of its formation in the switching gas channel.
  • the switching gas channel extends inside the hollow-volume vessel arrangement, wherein within the hollow-volume vessel arrangement, the switching gas can perform an expansion. As a result of the expansion, swirling takes place with the (cold) electrically insulating fluid located in the interior of the hollow-volume vessel arrangement.
  • the region of the generation of the switching gas namely in the region of the contact piece connected to the hollow-volume vessel arrangement and the region of the outlet opening of the switching gas in the surroundings of the interrupter unit, are to be spaced as far as possible from each other, so that the switching gas in the interior of the hollow volume Gefäßanord ⁇ tion can mix and cool.
  • the course of the switching gas channel prevents direct penetration of a gas flowing through the hollow-volume vessel arrangement switching gas.
  • the switching gas should be diverted forcibly at least once by at least 90 ° thereby to be discharged from an axi ⁇ alen inflow direction in a radial outflow through an outlet opening in the jacket of the vessel hohlvolumigen arrangement.
  • the switching gas should preferably enter the hollow-volume vessel arrangement in the axial direction and flow out of the hollow vessel arrangement in a radial direction. It has proven to be advantageous in this case to design the hollow-volume vessel arrangement as a substantially hollow cylinder, wherein, in particular, essentially rotationally symmetrical hollow cylinders are advantageous. Under ei ⁇ NEN substantially hollow cylinder extending along an axis of a cylindrical hollow body is viewed in the context of this document, which may also have different cross sections in the course of the cylinder axis, and may have, for example, the front side which additional requirements beyond.
  • the switching gas should preferably be injected into the cylinder axis direction in the hohlvolumige vasculature thereby, said shell-side outlet port of the switching gas channel in a cylinder axis concluded overall in itself encompassing wall, that a coat of hohlvo ⁇ -volume container assembly is disposed.
  • the hohlvolumige Ge ⁇ fäßanssen can have a substantially bottle-shaped structure, for example, the inlet opening of the switching gas channel is arranged at the end of a reduced cross section neck and an outlet opening at the bottom Fla ⁇ rule is arranged on the casing side.
  • the hollow-volume Ge ⁇ vessel arrangement for example, at least partially hood-shaped, ie, have a substantially hollow cylindrical structure, which are quite along the cylinder axis varying cross sections are possible. So it is possible, for example, a radially extended hood with z. B. at least partially conical structure to use.
  • a further advantageous embodiment can provide that the hollow-volume vessel arrangement has at the second end a particular substantially cup-shaped fitting body.
  • An armature body serves for a dielectric closure of the hollow-volume phase conductor arrangement at its second end facing away from the first end.
  • the fitting body should have a dielectrically favorable shape in order to prevent discharge phenomena.
  • the fitting body can be formed in particular substantially pot-shaped.
  • the fitting body can also have different dielectrically favorable shapes.
  • the fitting body can also be formed cup-shaped only in a section and beyond also alswei ⁇ sen further shape.
  • a valve body can advantageously be turned to ⁇ directed to connect the hohlvolumige vessel array with a soft ⁇ direct contact element, so that the interrupter unit can be looped in a current path to be interrupted.
  • the valve body may be configured in accordance with conductive thereto, in particular a cup shape is towards ⁇ visibly its dielectric properties of advantage.
  • the fitting body starting from a pot bottom, with the shell side surrounding the bottom of the pot surrounding jacket walls should open to the switching path.
  • the possibility is given to connect the fitting body, for example, with egg ⁇ nem body, wherein the cup-shaped volume surrounding the valve body together with the main body of the hollow volume vessel arrangement provides a volume for forming the switching gas channel.
  • the main body may be designed in the manner of a hood, wherein the hood opens in the direction of the valve body and the cup-shaped valve body opens in turn towards the base body.
  • the openings of the hood and the cup-shaped valve body may preferably sealing each other, the inner Volume of the hollow volume vessel assembly abut each other bordering or embrace each other.
  • a hollow-volume vessel arrangement of such a multi-part design the volume bounded and limited by the hollow-volume vessel arrangement can be increased.
  • variously sized components to a hollow vessel ⁇ bulky arrangement is to be connected.
  • a position for contacting the interrupter unit may be set differently on the fitting body.
  • the fitting body is free of electrical connection components, so that the fitting body only provides a volume which, together with a further body or several further bodies, delimits the hollow-volume vessel arrangement.
  • a further advantageous embodiment can provide that the shell-side outlet opening is at least partially, in particular ⁇ completely limited by the fitting body.
  • An armature body may for example be integrally formed.
  • casting methods can be used to mold the fitting body.
  • the cup-shaped portion of the valve body can be ge ⁇ uses to zen a shell-side outlet to limitation.
  • the fitting body limits only a part of a shell-side outlet opening.
  • the Auslassöff ⁇ voltage is, for example, jointly limited by various elements, which together enclose the hohlvolumige vasculature.
  • a plug contact is arranged on the fitting body.
  • the valve body can be used as serve ger of a plug-in contact, and possibly partially ⁇ even be designed as a plug contact.
  • the plug-in contact can be located at any desired positions. It is particularly advantageous when the plug contact is arranged in the base region of a cup-shaped valve body ⁇ . In this case, the plug contact should in particular outside the pot-shaped turned ⁇ closed volume, that is, free ordered by a wrap-around by an outer wall, in the floor area of the valve body.
  • the hollow-volume vessel arrangement is traversed on the inner shell side by a tubular body which divides the switching gas channel in a shell-shaped manner.
  • the switching gas channel may extend differently in the interior of the hollow-volume vessel arrangement.
  • the tube is essentially hollow cylindrical, in particular substantially is formed of a circular ring as a hollow cylinder, so that a centrally located inside the tubular body ⁇ de (particularly circular-cylindrical) shell is surrounded by a hollow cylindrical We ⁇ sentlichen shell.
  • the shells are separated by the tubular body.
  • a plurality of tube bodies nested together delimit a larger number of shell-like sections of the switching gas channel.
  • a main flow direction of the tubular body should be directed substantially identically on the inside as well as on the outside, so that an intensive and rapid swirling of switching gas and dielectrically more favorable electrically insulating fluid is possible.
  • the switching gas channel can be flowed through in a direction of switching gas. Changes in direction are reduced to a small number, the main flow ⁇ direction is maintained. Transverse flows essentially serve to swirl the switching gas. Switching gas can continu ⁇ ously switched into the switching gas channel and flow out. In the hollow-volume vessel arrangement, while maintaining the flow direction, the switching gas can swirl and possibly also temporarily flow in transverse directions and overlap with the main flow direction.
  • the tube body on the shell side has at least one passage opening on ⁇ over which communicate through the tube body separated shells with each other.
  • slots may be provided as passage openings whose longitudinal extent is substantially transverse to the longitudinal axis of the tubular body.
  • an offset of the position of the passage openings can be provided.
  • the position of the passage openings can vary. However, provision should be made for passage tions, which are located in the area of the fitting body, only in one and the same (radial) direction a passage for the switching gas available stel ⁇ len.
  • the tube body has on the shell side at least one passage opening, wel ⁇ che is spanned by the hollow-volume vessel arrangement, in particular spaced from the valve body.
  • a passage opening may be spaced from the tube body by a closed wall of the hollow volume vessel arrangement, in particular the valve body to be spanned.
  • the spanning wall should be on the outer shell side to the pipe body.
  • the wall serves as a deflector for the spanned passage opening passing switching gas.
  • ⁇ advantage adhesive should be enough, covers a passage opening spanned by a portion of surrounding the bottom of the pot shell wall of the valve body. This gives rise to a possibility of allowing switching gas passing through the passage opening to flow against the overstretching wall of the fitting body and deflecting it there.
  • the wall is a barrier. Furthermore, it can be advantageously provided that the tubular body spans the outlet opening of the switching gas channel at a distance .
  • the outlet opening of the switching gas channel is covered by a closed wall of the tubular body.
  • the wall serves as a deflector for switching gas.
  • the tubular body is arranged on the inner shell side in front of the outlet opening, so that a direct escape of switching gas from the shell enclosed by the tubular body within the hollow volume vessel arrangement is prevented via an outlet opening in the vicinity of the interrupter unit.
  • a barrier which in addition deflects the gravitating to the off ⁇ outlet opening switching gas and from ⁇ deflected, whereby for example, a mesh routing of parts of the switching gas flow which both inner and au- texmantel document flow along the tubular body is made possible. This causes additional swirling shortly before the switching gas leaks into the environment of the interrupter unit.
  • the off ⁇ outlet opening and the passage opening are offset to each other.
  • outlet opening and passage opening prevents a direct escape of switching gas components passing through a passage opening through the outlet opening into the surroundings of the interrupter unit.
  • the outlet opening and the passage opening should be provided in diametrically opposite sections in the wall of the hollow-volume vessel arrangement (preferably in the fitting body) and the wall of the tubular body. This ensures that the switching gas is at least partially forced to an Umlauflauf around the pipe body immediately before the escape of the switching gas from the switching gas channel.
  • Hollow-volume vessel arrangement should (s) the outlet opening (s) opposite to the / in the region of the second end of the hollow-volume vessel arrangement lying through openings.
  • passage openings and outlet openings essentially have the same gas passage direction.
  • the openings are arranged at different subassemblies opposite to each other.
  • the offset should be provided such that, relative to a vertical axis, which essentially perpendicularly intersects the pot base of the fitting body, and which is aligned parallel or congruent to the cylinder axis of the hollow-volume vessel arrangement, an offset of the outlet opening and passage opening is provided in the circumferential direction ,
  • an axial Mathde ⁇ ckung of outlet openings and passages may be permitted.
  • all located there für Stammsöff ⁇ calculations and all outlet openings located there should be per ⁇ wells pass into a common beam direction switching gas.
  • the beam directions of the passage openings and the outlet openings should be different from each other.
  • the beam directions may also be substantially parallel to each other.
  • the switching gas should flow with entge ⁇ genforceen sense of direction through the passage openings and outlet openings.
  • the passage opening and the outlet opening can in this case be formed, for example in the manner of elongated holes, which may be located both the outlet opening and the passage opening on the same orbit with itself ⁇ , said outlet opening and through opening should be arranged at diametrically entge- genforce points of the orbit.
  • the tubular body cantilevered protrudes into the hollow-volume vessel arrangement.
  • a support of the tubular body on the valve body allows ei ⁇ ne simplified installation of the interrupter unit, since the tube body can be mounted together with the fitting body, for example during a completion of the hollow-volume vessel assembly.
  • the tubular body can protrude, for example, in the cup-shaped recess into the pot bottom and rest against the bottom of the pot, so that the tubular body is connected to the end face with a bottom of the cup-shaped valve body.
  • the tubular body preferably extends, starting from the bottom portion of the valve body through the cup-shaped casing wall towards ⁇ through and projects beyond the valve body and covers a large part of the extension of the hohlvolumigen vessel assembly between first and second ends.
  • the tubular body is preferably spaced apart from the jacket walls of the pot-shaped fitting body, so that an annular gap is formed on the outer surface of the tubular body.
  • the Rohrkör ⁇ per should be connected in the manner of a circular ring with the bottom of the fitting body.
  • the valve body can be aligned, for example, with its free end in alignment with one of the contact pieces or to an inlet opening of the Weggaska ⁇ Nals in the switching path of the hohlvolumigen vessel arrangement, so that by an inlet opening in the interior of the hohlvolumigen phase conductor arrangement inflowing switching gas preferably first in the interior of the tube ⁇ body flows enclosed area.
  • a gap may be left which acts as the passage openings.
  • the tubular body may have, for example, electrically conductive Mate ⁇ rial.
  • a further advantageous embodiment may provide that between the tubular body and the hollow-volume vessel arrangement, a shell of the switching gas channel with an annular cross-section is limited, wherein the flow resistance of the annular shell at the first end of the hollow volume phase conductor assembly is lower than at the second end of the hollow-volume vessel assembly.
  • the tubular body subdivides the hollow volume of the hollow-volume vessel arrangement into various shells which surround one another.
  • a cylindrical shell which outer shell side separated by the tubular body of a hollow cylindrical
  • Shell is embraced.
  • each of the shells there is a flow of the switching gas, wherein the main flow direction of the switching gas in each of the shells is similar.
  • About the passages communication between the individual shells is possible.
  • Is now in the outer shell of annular cross section to increase the Strö ⁇ mung resistance, made starting from the first side of the hohlvo ⁇ -volume container assembly toward the second side of hohlvolumigen vessel arrangement it is possible first to allow a relaxation of the inflowing switching gas, wherein with a cross-sectional reduction and increased flow resistance in the direction of the outlet opening of the switching gas ⁇ channel in the environment, a renewed acceleration of the flow can be forced within the switching gas channel.
  • the switching gas in the lower-resistance section which is arranged in the direction of the first side of the hollow-volume vessel arrangement, a relaxation of the switching gas and then press this relaxed switching ⁇ gas in the resistance increased range of the shell, thereby At the second end results in an increase in the flow velocity of the outflowing switching gas. So ⁇ with a rapid escape of switching gas can be transported from the switching ⁇ gas channel. An increase in resistance can be made stepwise or else continuously by changing the cross section of the switching gas channel.
  • the annular shell at the second end of the valve body and at the first end of a valve receiving the front end cap is limited at the hollow vo- lumigen vessel arrangement.
  • valve body and the hood By a corresponding cross-sectional configuration of the valve body and the hood, it is possible in a simple manner to connect the hood and the valve body together and thereby make a conclusion of the hollow-volume phase conductor arrangement.
  • the hood and the valve body By a corresponding cross-sectional configuration of the valve body and the hood, it is possible in a simple manner to connect the hood and the valve body together and thereby make a conclusion of the hollow-volume phase conductor arrangement.
  • Hood is designed substantially hollow cylindrical, or for example, also shaped like a cone, where ⁇ is embraced in the fitting body of the hood and is inserted into the hood.
  • the openings of the Arma turelless and the hood opening should face each other, so that the volumes of the hood and pot to a total volume of hohlvolumigen ⁇ vessel arrangement can complement.
  • a sealing compound is advantageous to drive the switching gas in the direction of the outlet opening.
  • the federation can be used to a
  • the two sections are preferably each ⁇ wells limited by the cap and the valve body, said valve body by Ha- be and mutually different cross-sections of different influencing the flow resistance.
  • a simplified composite of valve body and hood is given.
  • a cross-sectional reduction is thus carried out in a simple manner in order to bring about changed flow resistances in a shell.
  • a cross-sectional reduction of the outer envelope contour of the interrupter unit can thus also be achieved.
  • the outlet opening is located in a region which is projected completely in a projection in the direction of the cylinder axis of the hood.
  • this area is additionally shielded ⁇ lektrisch by the hood.
  • the hollow-volume vessel arrangement is a phase conductor arrangement which is electrically contacted with one of the contact pieces.
  • an embodiment of the hohlvolumigen vasculature as a phase conductor arrangement has the advantage of a Needlesstü ⁇ bridge electrically connected to the hohlvolumigen vasculature to contact.
  • the hollow-volume vessel arrangement can be used to form a section of a current path to be interrupted or switched by the switching device arrangement.
  • the hollow-volume vessel arrangement can be made, for example, from metallic castings.
  • the fitting body is manufactured as an aluminum casting.
  • a base body, which is connected to the valve body also be made of cast aluminum. This makes it possible to make an electrical contact with one of the contacts on the one hand.
  • the hollow-volume vessel arrangement can be advantageously formed in a dielectrically advantageous manner.
  • the hollow-volume vessel arrangement may extend substantially rotationally symmetrically with respect to a longitudinal axis or cylinder axis, so that the hollow volume which is enclosed by the hollow-volume vessel arrangement is dielectrically protected.
  • the hollow-volume vessel assembly and assemblies may be arranged, for example, have the projecting edges.
  • a deflection can also be at least partially stabilized to drive a movable contact piece project into the hohlvolumige vasculature.
  • the hohlvolumige vasculature can be used as part of the technological to be ⁇ current path or produced current path through the switching device arrangement.
  • a contact piece contacted with the hollow-vale-shaped vessel arrangement should be permanently contacted with the hollow-volume phase conductor arrangement, so that independent of a switching position of the Interrupter unit, the hollow volume vessel assembly and the contact lead the same electrical potential.
  • At least one of the contact pieces is supported by the hollow-volume vessel arrangement.
  • the hohlvolumige vessel arrangement must in turn have a suffi ⁇ sponding mechanical and thermal stability to accommodate the counter flowing in the interior of switching gases resistance. Accordingly, the hohlvolumige Gefäßanord ⁇ voltage on an angle-rigid structure, which is also used to who can ⁇ to stabilize the interrupter unit.
  • the hollow-volume vessel arrangement can thus serve, for example, as a support element in order to place one of the contact pieces in the interior of the container
  • the hollow-volume vessel arrangement can, for example, embrace one of the contact pieces on the outside of the jacket and receive it, for example, in the manner of a pipe socket. Over such a pipe connection, it is possible to provide an inlet opening of the switching gas channel with the switching path towards available, wherein the pipe connection / contact piece for example from the switching ⁇ distance into the switching gas channel entering switching gas can flow freely into the interior of hohlvolumigen vasculature. Furthermore, is given by an supporting the contact piece, in particular ⁇ sondere at the first end of the bowl assembly hohlvolumigen the possibility of self-support the hohlvolumige vascular arrangement in the region of the second end and to execute the first end-supporting.
  • the electrically active parts of the contact point on the hollow volume vessel assembly can be kept spaced to breakpoints of the interrupter unit. This makes it possible to relieve the contact pieces themselves from holding and guiding functions and to channel holding and guiding forces via the hollow-volume vessel arrangement. Accordingly, additional Stauer Operationss- and
  • FIG. 1 shows a section through a switching device arrangement.
  • the figure shows a section through a Wegowskianord ⁇ tion in a schematic design.
  • the switching device arrangement has a housing 1.
  • the housing 1 is in this case a cast housing of electrically conductive material, ⁇ example, aluminum, which leads to ground potential.
  • the housing 1 has a first flange 2 and a second flange 3.
  • the housing 1 is performed as a pressure-resistant enclosure housing from ⁇ so that an overpressure built on ⁇ inside the housing 1 and a fluid can be trapped.
  • an interrupter unit 4 of the switching device arrangement is arranged in the interior of the housing 1.
  • the interrupter unit 4 has a first arcing contact piece 5 and a second arcing contact piece 6 as well as a first rated current contact piece 7 and a second rated current contact piece 8.
  • the first arcing contact piece 5 and the first rated current contact piece 7 are permanently galvanically contacted with each other.
  • the second arcing contact piece 6 and the second rated current contact piece 8 are also permanently contacted with each other galvanically.
  • the first arc con ⁇ tact piece 5 is designed as a hollow cylinder and has a sleeve-shaped contact area.
  • the first arcing contact piece 5 is arranged coaxially to a longitudinal axis 9.
  • the second arcing contact piece 6 is arranged opposite the first arcing contact piece 5 on the face side, the second arcing contact piece 6 essentially being bolt-shaped. is formed and is aligned coaxially to the longitudinal axis 9 ⁇ . Both the first arcing contact 5 and the second arcing contact piece 6 can be driven for generating a switching movement, the first arcing contact piece 5, and the second arcing contact piece 6 along the longitudinal axis 9 displaceably and drivably ge are ⁇ superimposed respectively. The first arcing contact piece 5 and the second arcing contact piece 6 always move in the opposite direction.
  • the second arcing contact piece 6 is in reverse to the bush-shaped contact region of the first arcing contact piece out ⁇ formed 5, so that the second arcing contact piece 6 for the production of a current path in the first arcing contact ⁇ piece can retract 5 at its contact area.
  • the first rated current contact piece 7 is tubular and surrounds the first arcing contact ⁇ piece 5 outer jacket side and is coaxially aligned with the longitudinal axis 9.
  • the second rated current contact piece 8 surrounds the second arcing contact piece 6 on the outer jacket side, wherein the second rated current contact piece 8 is aligned coaxially with the second arc contact piece 6.
  • the second clock Nennstromkon ⁇ piece 8 includes a contact socket with resilient contact fingers on ⁇ , in which an outer surface of the rohrförmi- is retracted gen first rated current contact piece. 7
  • the second rated current contact piece 8 is mounted stationary.
  • the first rated current contact piece 7 is common to the first
  • Arc contact piece 5 along the longitudinal axis 9 slidably.
  • a guide ⁇ socket 10 is provided for positioning the first arcing contact piece 5 as ⁇ the first rated current contact piece 7.
  • the guide bushing 10 is aligned coaxially with the longitudinal axis 9.
  • the guide bushing 10 surrounds the first rated current contact piece 7 on the outer shell side.
  • a sliding contact arrangement is arranged between the guide bush 10 and the first rated current contact piece 7, a sliding contact arrangement.
  • the insulating material 11 surrounds the first arcing contact piece ⁇ 5 outside the casing side and is itself from the first nominal Current contact piece 7 at least partially encompassed.
  • the insulating nozzle 11 provides a Isolierstoffdüsenkanal available, in which the second arcing contact piece 6 can dip or dive during a switching operation. A burning between the arcing contact pieces 5, 6 arc is thus prevented from radial bulging.
  • a push rod 12 is connected to the insulating material nozzle 11. About the push rod 12 may be a movement of the first
  • the second rated current contact piece 8 is struck frontally on a hollow-volume vessel assembly 14.
  • the hohlvolumi- ge vessel assembly 14 engages the second rated current contact piece ⁇ 8 outside casing side.
  • the hollow-volume vessel assembly 14 is designed to be electrically conductive as a phase conductor arrangement and part of a current path to be switched by the switching device arrangement.
  • the second rated current contact piece 8 and the second arcing contact piece 7 are mechanically held.
  • a contacting of the second rated current contact piece 8 and the second arc ⁇ contact piece 6 is made on the hollow volume housing assembly 14.
  • the hollow-volume phase conductor arrangement 14 has a main body 15.
  • the main body 15 is formed in the manner of a hood, which has a hollow ⁇ cylindrical or conical character. At one first end of the hollow-volume vessel assembly 14, the second rated current contact piece 8 is contacted. At a second end, which is opposite to the first end (relative to the longitudinal axis 9 or on the cylinder axis of the Grundkör- pers 15), a cup-shaped valve body 16 is arranged.
  • the pot-shaped fitting body 16 and the base body 15 in the form of a hood are facing each other with their respective pot opening or hood opening, so that the partial volumes encompassed by the pot-shaped fitting body 16 or by the base body 15 complement each other and together form a volume for the provide hollow volume vessel assembly 14.
  • cup-shaped valve body 16 is surrounded with its shell-side TopfWandungen perennial- side of the base body 15, wherein the base body 15 has a larger cross-section than the cup-shaped valve body 16.
  • the hohlvolumige vessel assembly 14 is penetrated almost over their entire axial extent of ge ⁇ a tubular body 17th
  • the tubular body 17 advantageously has a hollow cylindrical basic structure, in particular with an annular cross section.
  • the tubular body 17 thus divides the area bounded by the hohlvolu ⁇ -shaped vessel assembly 14 volume so that multiple shells are formed within the vasculature hohlvolumigen fourteenth
  • a shell 18 with annular cross-section results between the outer shell side of the tubular body 17 and the inner shell side of the hollow volume phase conductor assembly 14, a shell 18 with annular cross-section.
  • a further shell 19 with a fully cylindrical cross section results centrally in the interior of the tubular body.
  • the shell 18 has at its second nominal ⁇ current contact piece 8 facing the first end to a larger cross-section, as at its the pot-shaped valve body 16 facing the second end.
  • the tubular body 17 is flush with the pot bottom of the pot-shaped valve body end face pers 16 connected.
  • the tubular body 17 extends starting from the pot base or starting from the cup-shaped valve body 16 through the hollow-volume vessel assembly 14 in the direction of the second rated current contact piece 8.
  • the tubular body 17 is cantilevered out into the room, wherein the free end of the tubular body 17 spaced apart a pipe ⁇ stutzen 20 is. Between the pipe socket 20 and the free end of the tubular body 17, an annular gap is formed.
  • Vorlie ⁇ ing the pipe socket 20 is formed as part of the hollow-volume vessel assembly 14, wherein the pipe socket 20 may also be configured as a discrete assembly or as part of the second nominal current ⁇ contact piece 8.
  • the pipe socket 20 engages around a cross-section which is substantially aligned with the cross section of the bush of the second rated current contact piece 8.
  • the second rated current contact piece 8 is penetrated by the switching gas channel, which springs in a switching ⁇ distance.
  • the switching path is the space in wel ⁇ chem contacting, separation of the contact areas of the contact pieces 5, 6, 7, 8 takes place.
  • a switching path is present between the two arcing contact pieces 5, 6.
  • Another switching path is arranged between the rated current contact pieces 7, 8.
  • the switching gas channel ent ⁇ jumps both in one and in the other switching path. This ensures that any switching gas generated in each of the switching sections has the same switching gas
  • the tubular body 17 is provided with passage openings 21, which are introduced on the shell side.
  • the passage openings 21 are distributed symmetrically on the circumference, so that a communication of the shell 18 and the further shell 19 via the passage openings 21 is made possible.
  • the passage openings 21, which are in the region of the pot-shaped valve body 16 are aligned exclu ⁇ Lich in one direction.
  • the passage opening 18 spanning in the region of the cup-shaped valve body 16 is on the tubular body 17 a closed wall renewedbil ⁇ det, in which an arrangement of passages 21 has been omitted.
  • outlet openings 22 of the switching gas channel are introduced into the jacket wall on the shell side.
  • the position of the outlet openings 22 on the pot-shaped valve body 16 is provided such that the passage openings 21 are aligned diametrically opposite to the Auslassöffnun ⁇ gen 22 in the region of the cup-shaped valve body 16.
  • Outlet openings 22 and passage openings 21 are arranged offset from one another.
  • the passage openings 21 are spanned on the outer shell side by a wall of the hollow-volume phase conductor arrangement 14.
  • the outlet openings 22 are spanned by a wall of the tubular body 17 on the inner side of the jacket. This ensures that after a passage of
  • a plug contact 23 is arranged at the pot-shaped fitting body 16.
  • the plug-type contact 23 is screwed by means of a screw connection to the pot base of the pot-shaped Armaturkör- 16, wherein the plug contact 23, a first connecting line 24 is connected.
  • the first connecting line 24 protrudes through the first flange 2 and serves to couple the switching device arrangement, for example in a switchgear.
  • the plug-in contact 23 is of a
  • Umbrella hood 25 surrounded.
  • a shield ring 26 is formed, which together with the
  • Shielding hood 25 ensures a dielectric shielding of the region of the plug-in contact 23.
  • it can also be arranged eccentrically, shell-side or otherwise on the cup-shaped valve body 16, for example.
  • an electrical contacting of the hollow volume vessel assembly 14 is provided so that the valve body 16 and the base body 15 serve as parts of the hollow volume vessel assembly 14 as a current path for supplying an electric current to the second rated current contact piece 8 / the second arcing contact piece 6 ,
  • a further plug-in contact 27 is arranged on the shell side, in which a second connecting line 28 is electrically contacted.
  • the second on ⁇ connection cable 28 extending through the second flange 3 and is an electrical contact of the first Nennstrom Quilt- piece 7 and the first arcing contact piece 5 with the interposition of the guide bush 10.
  • the two connecting lines 25, 28 can in turn be electrically insulated relative to the housing 1 supported be, via the plug ⁇ connections 23, 27 and the interrupter unit 4 can be positio ⁇ ned.
  • the use of separate insulators 29 is indicated by a dashed line, via which the interrupter unit 4 can alternatively or additionally be supported on the housing 1.
  • the flange openings of the first and second flange 2, 3 can be gas-tight and pressure-tight, for example, by using electrically insulating closure means, which are penetrated by the connection lines 24, 28.
  • an electrically insulating fluid for example sulfur hexafluoride gas or nitrogen gas, or mixtures with these gases.
  • a Beauf ⁇ shock of the fluid in the interior of the housing 1 is made possible with overpressure.
  • the interrupter unit 4 is thus surrounded by an electrically insulating fluid and flushed by the electrically insulating fluid.
  • the electrically insulating fluid which is enclosed in the housing 1 and which surrounds the interrupter unit 4, provides the environment the interrupter unit 4, in which from the Auslassöff ⁇ voltages 22 ejected switching gas is discharged.
  • Switch contact pieces 5, 6, 7, 8 is an insulating ge ⁇ forms, which is filled with electrically insulating fluid.
  • the housing 1 is penetrated by a shaft 30 to which a pivot lever is attached.
  • a rotational movement of the shaft 30 is converted into a linear movement in the direction of the longitudinal axis 9.
  • the shaft 30 passes through the housing 1 fluid-tight, so that a drive movement can be transmitted from the outside of the housing 1 in the interior of the housing 1 fluid ⁇ tight.
  • a movement of the first arcing contact piece 5 and first rated current contact piece 7 and insulating nozzle 11 in the direction of the second Nennstromition- piece 8 causes movement of the coupling rod 12 and driving the deflecting gear 13.
  • the second arcing contact piece 6 is driven in the direction of the first arcing contact piece 5, so in that prior to a contacting of the rated current contact pieces 7, 8, contacting of the arcing contact pieces 5, 6 takes place.
  • a movement is initiated with the direction of rotation reversed, ie, the first rated current contact piece 7 and the first arcing contact piece 5 are moved away from the second arcing contact piece 6 and the second rated current contact piece 8, respectively.
  • the two rated current contact pieces 7, 8 separate from each other.
  • a training can commutate switching current nearly free arc to the arcing contact pieces 5, 6, the time vonein below ⁇ other are separated. Depending on the current to be interrupted, the separation may cause the arc to be ignited.
  • the arc is preferably guided inside the insulating material nozzle channel.
  • the arc expands electrically insulating fluid, vaporizes the electrically insulating Flu ⁇ id, evaporated insulating material of the insulating nozzle 11 and ver ⁇ also deposited conductor material of the arcing contact pieces 5, 6.
  • the switching gas has an overall ringere insulation strength than the electrically isolie ⁇ Rende fluid. Due to the expansion and thermal influence creates an overpressure in the switching path.
  • the switching ⁇ gas is driven from the switching path due to this overpressure in the switching gas channel. In this case, the switching gas initially passes an inlet opening of the switching gas channel in the second rated current contact piece 8. The switching gas is driven into the further shell 19 and initially flow in the axial direction through the tubular body 17.
  • the switching gas driven by continuously nachströmendes switching gas, in the first shell 18 over ⁇ flow and during this flow, a mixing of the inflowing contaminated switching gas with located within the hollow volume vessel assembly 14 electrically insulating fluid.
  • the switching gas first flows from the first end of the hollow-volume vessel arrangement 14 to the second end of the hollow-volume vessel arrangement 14. There, on the one hand, it passes from the passage openings 21 in the area of the hollow space cup-shaped valve body 16 driven in the radial direction against the spanning wall of the valve body 16 and deflected from there in the circumferential direction and then ejected through an outlet opening 22.

Landscapes

  • Circuit Breakers (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Studio Devices (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

L'invention concerne un appareillage de coupure comprenant une unité coupe-circuit (4) pourvue d'une longueur de coupure et d'un premier et d'un deuxième contact de coupure (5, 6. 7, 8) qui sont mobiles l'un par rapport à l'autre. Un canal de gaz de coupure part de la longueur de coupure et relie cette dernière à l'environnement de l'unité coupe-circuit. Un ensemble contenant creux (14) délimite le canal de gaz de coupure au moins dans certaines zones et est relié à l'un des contacts de coupure (6, 8). Cet ensemble contenant creux (14) présente une ouverture de sortie (22), côté enveloppe, du canal de gaz de coupure.
EP13703377.5A 2012-02-16 2013-02-05 Appareillage de coupure Active EP2801101B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012202408A DE102012202408A1 (de) 2012-02-16 2012-02-16 Schaltgeräteanordnung
PCT/EP2013/052234 WO2013120733A1 (fr) 2012-02-16 2013-02-05 Appareillage de coupure

Publications (2)

Publication Number Publication Date
EP2801101A1 true EP2801101A1 (fr) 2014-11-12
EP2801101B1 EP2801101B1 (fr) 2018-11-14

Family

ID=47681878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13703377.5A Active EP2801101B1 (fr) 2012-02-16 2013-02-05 Appareillage de coupure

Country Status (7)

Country Link
US (1) US9396891B2 (fr)
EP (1) EP2801101B1 (fr)
CN (1) CN104115251B (fr)
DE (1) DE102012202408A1 (fr)
MX (1) MX337102B (fr)
RU (1) RU2631259C2 (fr)
WO (1) WO2013120733A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112017904B (zh) * 2019-05-28 2022-08-12 河南平芝高压开关有限公司 断路器及其静侧尾部气流通道结构

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1889068U (de) * 1964-01-18 1964-03-12 Concordia Maschinen Und Elek Z Rohrloeschkammer mit kuehlvorrichtung.
DE3275041D1 (en) * 1981-09-30 1987-02-12 Sprecher Energie Ag Compressed-gas circuit breaker
JPS61127542U (fr) 1985-01-30 1986-08-11
JPS62216127A (ja) * 1986-03-17 1987-09-22 株式会社日立製作所 パツフア形ガス遮断器
JP2910582B2 (ja) * 1994-10-31 1999-06-23 日新電機株式会社 電力用ガス遮断器
TW280920B (fr) * 1995-01-20 1996-07-11 Hitachi Seisakusyo Kk
DE29607660U1 (de) * 1996-04-22 1996-06-20 Siemens AG, 80333 München Unterbrechereinheit eines Hochspannungs-Leistungsschalters
GB2332566B (en) * 1997-12-19 2001-09-19 Rolls Royce Power Eng Electrical circuit breaker
DE19928080C5 (de) * 1999-06-11 2006-11-16 Siemens Ag Hochspannungsleistungsschalter mit einem Abströmkanal
JP4218216B2 (ja) * 2001-02-22 2009-02-04 株式会社日立製作所 ガス遮断器
JP3876357B2 (ja) * 2002-01-09 2007-01-31 株式会社日立製作所 ガス遮断器
DE10221580B3 (de) * 2002-05-08 2004-01-22 Siemens Ag Unterbrechereinheit eines Hochspannungs-Leistungsschalters
ATE458259T1 (de) * 2005-09-26 2010-03-15 Abb Technology Ag Hochspannungsschalter mit verbesserter schaltleistung
FR2892851B1 (fr) * 2005-11-03 2013-12-06 Areva T & D Sa Chambre de coupure de courant a double chambre de compression
EP1835520B2 (fr) * 2006-03-14 2013-12-18 ABB Technology AG Chambre d'interruption pour interrupteur haute tension isolé à gaz
ATE550770T1 (de) * 2007-10-31 2012-04-15 Areva Energietechnik Gmbh Hochspannungsleistungsschalter
EP2120244A1 (fr) 2008-05-15 2009-11-18 ABB Technology AG Disjoncteur haute pression
FR2926663A1 (fr) * 2008-09-01 2009-07-24 Areva T & D Sa Disjoncteur a soufflage d'arc a rigidite dielectrique elevee
EP2299464B1 (fr) * 2009-09-17 2016-08-31 ABB Schweiz AG Commutateur à auto-extinction doté d'une vanne de remplissage et d'un clapet de décharge
EP2579287B1 (fr) * 2010-05-31 2014-07-02 Ormazabal Y Cia., S.L.U. Disjoncteur à gaz
DE102011083593A1 (de) 2011-09-28 2013-03-28 Siemens Aktiengesellschaft Leistungsschalterunterbrechereinheit

Also Published As

Publication number Publication date
MX2014009882A (es) 2014-11-13
MX337102B (es) 2016-02-09
RU2631259C2 (ru) 2017-09-20
CN104115251B (zh) 2017-06-30
RU2014137327A (ru) 2016-04-10
US20150034601A1 (en) 2015-02-05
EP2801101B1 (fr) 2018-11-14
DE102012202408A1 (de) 2013-08-22
US9396891B2 (en) 2016-07-19
WO2013120733A1 (fr) 2013-08-22
CN104115251A (zh) 2014-10-22

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