EP2923369B1 - Schaltverfahren und schalteinrichtung - Google Patents

Schaltverfahren und schalteinrichtung Download PDF

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Publication number
EP2923369B1
EP2923369B1 EP14700818.9A EP14700818A EP2923369B1 EP 2923369 B1 EP2923369 B1 EP 2923369B1 EP 14700818 A EP14700818 A EP 14700818A EP 2923369 B1 EP2923369 B1 EP 2923369B1
Authority
EP
European Patent Office
Prior art keywords
contact piece
rated current
arcing
arcing contact
current contact
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
EP14700818.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2923369A1 (de
Inventor
Radu-Marian Cernat
Martin KREHNKE
Volker Lehmann
Friedrich Löbner
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 EP2923369A1 publication Critical patent/EP2923369A1/de
Application granted granted Critical
Publication of EP2923369B1 publication Critical patent/EP2923369B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/025—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/42—Driving mechanisms

Definitions

  • the invention relates to a switching method of a switching device having a first contact side, which is movable relative to a second contact side, wherein the first contact side has a first rated current contact piece and a first arcing contact piece and the second contact side has a second rated current contact piece and a second arcing contact piece, wherein for generating a Relative movement between the first contact side and the second contact side, the first arcing contact piece and the first rated current contact piece and the second arcing contact piece and the second rated current contact piece are driven.
  • a switching device which has a first and a second contact side. Both the first and the second contact side each have an arcing contact piece and a rated current contact piece. On one of the contact pages, a gear is used to drive the local contact pieces. The arcing contact piece and the rated current contact piece of the other contact side are also movably arranged. To control higher voltages and currents, it is known to increase the contact separation speed or the contacting speed. This shortens a time interval in which switching arcs can occur. The desire for higher switching speeds leads to the use of more powerful drive means to move the moving masses fast enough. Larger speeds lead to greater forces on the moving parts of the switching device. Consequently, the moving parts often have to be made stronger, which usually increases their mass. Larger moving masses require even greater drive energy to be able to move faster.
  • the object is achieved in that during a switching operation, the first arcing contact piece is moved with a movement profile and the first rated current contact piece is moved with a motion profile and the motion profiles of the first arcing contact and first rated current contact piece differ and the second arcing contact pieces is moved with a motion profile and the second rated current contact piece is moved with a movement profile and the motion profiles of the second arcing contact piece and the second rated current contact piece differ from each other.
  • Switching devices serve for producing or dissolving a current path, via which an electrical current driven by a potential difference can flow.
  • the switching device For contacting or for dissolving the current path, the switching device has contact sides which are movable relative to one another.
  • the contact sides each have an arcing contact piece and a rated current contact piece.
  • the arcing contact pieces and the rated current contact pieces are each equipped with contacting areas.
  • the contacting areas of the arcing contact pieces are each configured to be equal in order to be able to effect a galvanic contacting. Accordingly, the Kunststofftechniks Kunststoffe the rated current contact pieces are formed gegen Dermatesque.
  • the first rated current contact piece and the first arcing contact piece of the first contact side are permanently electrically connected to one another independently of a switching position of the electrical switching device.
  • the second arcing contact piece and the second rated current contact piece of the second contact side are permanently electrically contacted independently of a switching position of the electrical switching device.
  • the first arcing contact and the first Rated current contact piece are movable relative to each other.
  • the second arcing contact piece and the second rated current contact piece are movable relative to each other.
  • the first contact side (including the first arcing contact piece and the first rated current contact piece) is movable relative to the second contact side (including the second arcing contact piece and the second rated current contact piece).
  • the first arcing contact piece and the second arcing contact piece and the first rated current contact and the second rated current contact piece are driven.
  • one or more drive devices can be used, which convert an energy form into a movement.
  • the associated arcing contact pieces and rated current contact pieces of a contact side are moved with different motion profiles.
  • a movement profile defines a path-time behavior of the respective contact piece during a switching operation (eg switch-on process, switch-off process).
  • the motion profiles can be determined for example by a mechanism or an electrical control.
  • the respective movement profiles of the arcing contact pieces and the rated current contact pieces can be synchronized relative to each other, so that certain movements of a contact piece must be completed before a movement of another contact piece starts / progresses.
  • the arcing contact pieces should contact one another before the rated current contact pieces, so that switching arcs (flashovers) preferably occur at the arcing contact pieces.
  • the rated current contact pieces should first be disconnected, so that an electric current to be interrupted commutates onto the arcing contact pieces.
  • the arcing contact pieces are separated from each other.
  • a switching arc (Ausschaltlichtbogen) is preferably performed between the arcing contact pieces.
  • the arcing contact pieces protect the rated current contact pieces against burnup.
  • the time of contacting the arcing contact pieces / the rated current contact pieces or the time of separation of the rated current contact pieces / the arcing contact pieces can be determined by a variation of the individual motion profiles.
  • the time delay between the separation and / or contacting of the arcing contact pieces and the rated current contact pieces can be changed via a design of the movement profiles.
  • the location of the contacting can also be changed by changing the motion profiles.
  • an arcing contact and a rated current contact piece may be moved such that the arcing contact and the rated current contact piece remain at rest relative to each other, but in motion with respect to a common base.
  • the rated current contact pieces first approach one another while the arcing contact pieces remain in a field shadow of the respectively assigned rated current contact piece.
  • a switch-on serves to form a closed current path for conducting an electric current.
  • switching devices that can serve as a power switching device both during a switch-on and during a switch-off, a current-loaded switching operation available.
  • the two contact sides can have different electrical potentials before and during a switch-on process. Accordingly, an electrical field can already be present between the contact sides prior to the onset of a switch-on process. As the distance between the contact sides decreases, the electric field strength increases.
  • the rated current contact pieces first approach, with the arcing contact pieces remaining in the field shadow of the respective rated current contact piece. At least the contact areas of the arcing contact pieces should remain in the respective field shadow.
  • the nominal current contact pieces should have a more favorable shape for homogenizing an electric field than the arcing contact pieces.
  • the field-influencing effect of the rated current contact pieces is used to neutralize an optionally field weakening effect of the arcing contact pieces.
  • the period of approach of the rated current contact pieces can be used to prepare the switching device for the emergence of the arcing contact pieces from the field shadows.
  • At least one of the arcing contact pieces can, for example, be moved synchronously with a rated current contact piece so that the arcing contact pieces approach each other and finally leave the field shadow of the rated current contact piece.
  • an arcing contact piece (at least temporarily) with a is moved faster than the associated rated current contact piece to approach the other arcing contact piece.
  • the two arcing contact pieces can move the same way or have different motion profiles.
  • both arcing contact pieces of the contact sides should preferably be accelerated horizontally within the field shadow of the rated current contact pieces.
  • the arcing contact pieces weaken the electrical field located between the rated current contact pieces so that field strength peaks occur at the arcing contact pieces and arcing occurs preferably between the arcing contact pieces.
  • a definition of the critical distance takes place as a function of the contact geometry of the electrical switching device, the insulating medium used and the applied electrical potential difference. Connected to the critical distance is a critical field strength, which makes it possible to expect an onset arc to occur between the rated current contacts. Until the critical distance is reached, the more favorable shaping of the rated current contact pieces can be used in order to first approximate the contact sides to one another. Only at this time, the protective effect of the arcing contact pieces is necessary. A premature field weakening by unshielded arcing contact pieces is avoided. The protective effect of the arcing contact pieces begins with a stepping out of the field shadow. At least the contacting areas of the arcing contact pieces should leave the respective field shadow.
  • an electric field located between the contact sides can be homogenized during an increased time interval of a switch-on operation. Only at a relatively late time is an onset of flashovers on the arcing contact pieces forced by a targeted weakening of the electric field.
  • the rated current contact pieces are first disconnected and then the arcing contact pieces are separated and the arcing contact pieces are separated from one another at a relative speed which approximately reaches their maximum during a switch-off operation.
  • an electrical current flowing during the interruption of the current path to be switched can be interrupted.
  • an electric current to be interrupted commutates onto the arcing contact pieces which are initially still in galvanic contact with one another.
  • the electrical current within a fluid insulating medium surrounding the arcing contact pieces can initially continue to flow in the form of a firing switching arc.
  • the relative speed of the arcing contact pieces should approximately have their maximum during a switching-off operation.
  • High contact separation speeds shorten the time windows in which favorable conditions for the ignition of a switch-off arc are present. Accordingly, the probability of occurrence of a turn-off arc is reduced. Furthermore, the base points for a switching arc are removed from each other by a high contact separation speed, so that an optionally ignited switching arc is prolonged and is easier to extinguish.
  • the individual contact pieces, in particular the arcing contact pieces are moved with different movement profiles, a resulting relative speed of the contact separation of the arcing contact pieces.
  • the resulting relative speed can be adjusted. For example, in a turn-off operation, the arcing contact pieces may first be moved relatively slowly to each other to prepare for separation of the arcing contact pieces and first to separate the rated current contact pieces to be subsequently accelerated to achieve a high contract separation speed.
  • a return of the arcing contact pieces in the field shadows of the associated rated current contact pieces supports solidification of the switching path at an early stage.
  • the arcing contact pieces are dielectrically neutralized after a particularly complete immersion in the field shadows, so that the distribution of the electric field is influenced by the rated current contact pieces.
  • field strength peaks preferably occur at the arcing contact pieces.
  • the first arcing contact piece is moved during a switching operation relative to an insulating nozzle, which is connected in particular at a fixed angle to the first rated current contact piece.
  • An insulating nozzle can interact with the contact pieces, in particular with the arcing contact pieces of the switching device.
  • the insulating nozzle having a nozzle channel, within which a switching arc is performed.
  • the arcing contact pieces (in particular their contacting areas) should be encompassed at least partially and / or at least temporarily by the insulating nozzle.
  • the insulating nozzle can be made in one or more parts.
  • the insulating nozzle should preferably be a rotary body which has a nozzle channel extending in the direction of the axis of rotation, in particular centrally.
  • the first arcing contact piece may, for example, have a bushing-shaped contacting region, the bushing representing an orifice opening of a channel of the first arcing contact piece.
  • the first arcing contact piece should preferably be formed as a tubular contact piece.
  • the first arcing contact piece should be arranged with its mouth opening in front of an orifice opening of the nozzle channel.
  • the contacting region of the first arcing contact piece should be encompassed by the insulating nozzle. In a relative movement of the first arcing contact piece to the Isolierdüsenanowski the distance between the mouth openings should vary. Thus, a width-variable gap is formed between the mouth openings, which is filled with an insulating fluid.
  • the mouth opening of the nozzle channel can open into a recess of the insulating nozzle.
  • the first arcing contact piece protrude in particular complementary shape.
  • the immersion depth of the first arcing contact piece can vary in the recess.
  • the insulating nozzle may be supported on the first contact side.
  • the insulating nozzle should be rigidly connected to the first rated current contact piece and movable with it.
  • the first contact side may be equipped with a heating volume for intermediate storage of switching gas.
  • the insulating nozzle can at least partially limit this heating volume.
  • the heating volume for example, be formed substantially hollow cylindrical and be penetrated by the relative to the heating volume movable first arcing contact piece.
  • the heating volume for example, be limited on the outer shell side of the first rated current contact piece.
  • the first arcing contact piece is moved toward the insulating nozzle during a switch-on process.
  • the switching device is already prepared with a switch-on to a switch-off.
  • the first arcing contact piece is removed from the insulating nozzle during a switch-off operation.
  • the insulating nozzle has electrically insulating material, for example an organic plastic such as PTFE.
  • Another object is to provide a suitable switching device for carrying out the method.
  • a switching device having a first contact side, which is movable relative to a second contact side, wherein the first contact side has a first rated current contact piece and a first arcing contact piece and the second contact side has a second arcing contact piece and a second rated current contact piece, wherein for generating a Relative movement between the first contact side and the second contact side, the first arcing contact piece and the first rated current contact piece and the second arcing contact piece and the second rated current contact piece are driven, wherein a first kinematic chain has a drive means and a first output means and second output means, wherein the first output means a first movement profile on the coupled first rated current contact piece and the second output means couples a different second movement profile on the first arcing contact piece and a second kine matic chain having a drive means and a first output means and second output means, wherein the first output means couples a first movement profile on the second rated current contact piece and the second output means a deviating
  • a kinematic chain is used to transmit a movement between two points.
  • a kinematic chain has at least one machine component, by means of which movements are transmitted.
  • a kinematic chain may, for example, have a connecting rod which transmits movements.
  • kinematic chains may have a plurality of machine components, which are in operative connection with each other, such as, for. As shafts, levers, gears, racks, cranks, transmission elements, etc. have.
  • a motion transmitted by a kinematic chain can be transformed, reshaped, decoupled, distributed, etc. within the kinematic chain.
  • a kinematic chain may act as a transmission having at least one input side and at least one output side. On the input side, the transmission may have a drive means, on the output side a driven means.
  • a drive means receives drive energy for moving one or more contact pieces, an output means outputs output energy directly or indirectly at one or more contact pieces.
  • drive and / or output means for example, a variety of machine components can be used such.
  • As shafts, levers, gears, cranks, bolts, rods, etc. drive side and output side may be, for example, input and output side of the kinematic chain.
  • the kinematic chain can convert a drive-side fed movement and output on the output side. However, it can also be provided that at least approximately similar movements are present on the drive side and on the output side.
  • the kinematic chain can be a transmission.
  • a common drive device which couples a movement to the drive means of a kinematic chain or several kinematic chains, wherein at the output means different motion profiles are coupled or coupled to the respective switching contact piece.
  • a kinematic chain it is also possible to output several motion profiles synchronized with one another on the output side.
  • first or the second output means of the first kinematic chain is connected to a drive means of the second kinematic chain.
  • a driven means of a first kinematic chain By coupling a driven means of a first kinematic chain with a drive means of the second kinematic chain, the output movements of both kinematic chains are synchronized with each other. Furthermore, a common drive device can be used, whose output motion can be converted into four different motion profiles of the arc and rated current contact pieces.
  • this has the advantage that the entire switching device is not switchable. Individual movements or partial function of the switching device are prevented.
  • first or the second output means is connected via an electrically insulating transmission element with the second kinematic chain.
  • An electrically insulating transmission element counteracts carryover of electrical potentials.
  • components of the first and second kinematic chains on different contact sides with divergent electrical potentials.
  • electrically insulating transmission elements for example insulating sleeves, insulating bearings, insulating lever, etc. are used.
  • the electrically insulating component should have an electrically insulated section in the region of a switching path of the switching device limit, so that both sides of the switching path located transmission elements of the kinematic chains are connected to each other, but short-circuit current paths are interrupted by the electrically insulating element.
  • an insulating element can be used as a transmission element.
  • the insulating nozzle bridges, for example, a switching path between the contact sides.
  • the insulating nozzle can serve to guide and guide a switching arc.
  • the isolation nozzle may serve to transmit a drive motion as part of a kinematic chain.
  • the FIG. 1 shows a section through a switching device.
  • the switching device has an encapsulating housing 1.
  • the encapsulating housing 1 has a substantially tubular metallic body on.
  • the main body carries ground potential.
  • the encapsulating housing 1 has a longitudinal axis 2.
  • the encapsulating housing 1 is filled with an electrically insulating fluid.
  • a pressurized insulating gas such as sulfur hexafluoride, nitrogen, carbon dioxide o. ⁇ .
  • End-side openings in the encapsulating housing 1 are each closed fluid-tightly with a cover.
  • a first flange connection 3 and a second flange connection 4 are arranged on the encapsulation housing 1.
  • the first and the second flange 3, 4 serve for an electrically insulated introduction of phase conductors of a current path to be switched.
  • the phase conductors encompassing, the Flanschstutzen 3, 4 closing disc insulators with the flange 3, 4 are connected.
  • outdoor bushings on the flange 3, 4 may be arranged to incorporate the switching device, for example, in an overhead line system.
  • an interrupter unit of the electrical switching device is arranged in the interior of the encapsulating housing 1.
  • the interrupter unit extends centrally in the encapsulating housing 1 along the longitudinal axis 2.
  • the interrupter unit is surrounded by the electrically insulating fluid and flushed through.
  • support insulators are used, of which a support insulator 5 is exemplified.
  • the interrupter unit has a first contact side 6 and a second contact side 7.
  • the two contact sides 6, 7 are mounted relative to each other movable.
  • the first contact side 6 is slidably mounted in a first support member 8.
  • the second contact side 7 is slidably mounted in a second support member 9.
  • the two support elements 8, 9 are made electrically conductive and contacted in each case with one of the guided through the flange 3, 4 phase conductors.
  • the two support elements 8, 9 are stationary relative to one another and arranged stationary to the encapsulating housing 1.
  • the two support elements 8, 9 are formed as substantially rotationally symmetrical hollow body whose axes of rotation are aligned coaxially to the longitudinal axis 2. End faces of the support elements 8, 9 are facing each other and spaced from each other.
  • the mutually facing end faces of the support elements 8, 9 are connected to one another via an insulating body 10, so that the two support elements 8, 9 form a chassis of the interrupter unit with the insertion of the insulating body 10.
  • the insulating body 10 is formed as a bulging widened hollow body, which receives in its interior a switching path between the first contact side 6 and the second contact side 7.
  • insulator 10 for example, cage-like rod structures or the like can be used.
  • the first contact side 6 and the second contact side 7 are slidably seated in each case in a socket of the first and second support element 8, 9 and are electrically conductively contacted with the support elements 8, 9.
  • the support elements 8, 9 via the support elements 8, 9 a permanent contact of the two contact sides 6, 7, each with a guided through the flange 3, 4 phase conductors given.
  • the first contact side 6 has a first arcing contact piece 11.
  • the first contact side 6 has a first rated current contact piece 12.
  • the first arcing contact piece 11 is tubular and provided at the end with a bush-shaped contacting region. In its interior a channel for the discharge of switching gas is arranged.
  • the bush-shaped contacting region serves as the mouth opening of the channel of the first arcing contact piece 11.
  • the first arcing contact piece 11 is aligned coaxially with the longitudinal axis 2 and can be moved along the longitudinal axis 2. Outer jacket side, the first arcing contact piece 11 is encompassed by the tubular first rated current contact piece 12.
  • the first rated current contact piece 12 is displaceable along the longitudinal axis 2 relative to the first arcing contact piece 11.
  • the second arcing contact piece 13 On the second contact side 7 is a second arcing contact piece 13 arranged.
  • the second arcing contact piece 13 is designed bolt-shaped and mounted coaxially to the longitudinal axis 2 slidably.
  • the second arcing contact piece 13 is encompassed by a substantially tubular second rated current contact piece 14.
  • the second rated current contact piece 14 and the second arcing contact piece 13 are movable relative to one another and along the longitudinal axis 2.
  • a heating volume 15 is arranged in a hollow cylindrical space between the first rated current contact piece 12 and the first arcing contact piece 11.
  • the heating volume 15 is limited on its side facing the second contact set 7 by an insulating nozzle 16.
  • the insulating nozzle 16 is rigidly connected to the first rated current contact piece 12, so that movements of the first rated current contact piece 12 are performed together with the insulating nozzle 16.
  • the first arcing contact piece 11 is movable relative to the first rated current contact piece 12 and the insulating nozzle 16.
  • the insulating nozzle 16 has a main portion and an auxiliary portion, wherein the main portion and auxiliary portion via an annular channel 17, which connects a nozzle channel with the heating volume 15, are spaced from each other.
  • the annular channel 17 opens into the nozzle channel from radial directions.
  • the nozzle channel extends in an elongated direction in the direction of the longitudinal axis 2 centrally through the rotationally symmetrical insulating nozzle 16.
  • the end-side mouth openings of the nozzle channel are each facing one of the arcing contact pieces 11, 14.
  • the first arc contact piece 11 facing the mouth opening of the nozzle channel opens into a recess of the insulating 16. In this case, the first arcing contact 11 immersed in the recess, so that the sleeve-shaped contacting region of the first arcing contact piece 11 faces as the mouth opening of the facing end opening of the insulating nozzle 16.
  • the first arcing contact 11 is complementary to the shape in the recess (the insulating nozzle 16), in which the nozzle channel opens, used.
  • the variable gap is encompassed on the circumference in front of the insulating nozzle 16.
  • a drive device is arranged outside the space enclosed by the encapsulation housing 1.
  • One of the in the FIG. 1 not shown drive means output movement is transmitted via a drive rod 18 in a fluid-tight manner through a wall of the encapsulating housing 1 to the internal interrupter unit.
  • the drive rod 18 is adapted to perform a substantially linear movement.
  • the drive rod 18 lies with its rod axis on the longitudinal axis 2 of the encapsulating housing 1 and is movable in the direction of the longitudinal axis 2.
  • the drive rod 16 is a drive means of a first kinematic chain.
  • the first kinematic chain has a first reduction gear 19.
  • the first reduction gear 19 of the first kinematic chain has a first output means 20 and a second output means 21.
  • the first output means 20 is coupled to the first rated current contact piece 12.
  • the second output means 21 is coupled to the first arcing contact piece 11.
  • the first output means 20 and the second output means 21 couple different motion profiles to the first rated current contact piece 12 and to the first arcing contact piece 11. Operation and structure of the first reduction gear 19 in a first embodiment is in the FIG. 7 recognizable and are in the description of the figure to the FIG. 7 described in more detail.
  • the insulating nozzle 16 With the first rated current contact piece 12, the insulating nozzle 16 is connected rigid angle. The insulating nozzle 16 spans the switching path located between the contact sides 6, 7 in an electrically insulating manner. The insulating nozzle 16 protrudes into the second rated current contact piece 14 and is applied to the second rated current contact piece 14. The second arcing contact piece 13 can dip into the nozzle channel of the insulating nozzle 16. During a switching movement, the insulating nozzle 16 emerges into the second rated current contact piece 14. At the end facing away from the first rated current contact piece 12, a connecting rod 22 is struck rotatably on the insulating nozzle 16.
  • the connecting rod 22 / the insulating nozzle 16 forms a second drive means of a second kinematic chain, which has a second reduction gear 23.
  • the second reduction gear 23 has a stationary on the second support member 9 positioned crank arm 24.
  • the crank arm 24 is connected to the connecting rod 22, so that a linear movement of the insulating nozzle 16 can be converted into a rotational movement of the crank arm 24.
  • the crank arm 23 further includes a link in which engages a sensing pin.
  • the sensing pin is aligned transversely to the longitudinal axis 2 and crosses the longitudinal axis 2.
  • the sensing pin is rigidly connected to the second rated current contact piece 14 and together with this along the longitudinal axis 2 slidably.
  • the sensing pin acts as the first output means of the second kinematic chain.
  • a rotary motion is converted into a linear movement and coupled to the second rated current contact piece 14.
  • the driving linear movement of the drive means (connecting rod 22 / insulating nozzle 16) has an opposite sense of direction to the movement of the second rated current contact piece 14. Due to the shape of the backdrop further a certain motion profile is impressed on the second rated current contact piece 14.
  • the second arcing contact piece 13 is slidably mounted.
  • the second arcing contact piece 13 has, at its end facing away from the contacting area, a hammer head which is mounted to slide in a linearly displaceable manner in a recess.
  • a pivot point of a two-armed lever 25 is further arranged, whose one lever arm is slidably guided in a slot of the hammer head of the second arcing contact piece 13. With its other lever arm of the two-armed lever 25 engages in a stationary slide passage 26 a.
  • the fixed slide passage 26 is fixed angle connected to the second support element 9.
  • the second rated current contact piece 13 is moved along the longitudinal axis 2. Accordingly, the pivot point of the two-armed lever 25 is moved along.
  • the two-armed lever 25 scans the stationary sliding passage 26 and is pivoted as a result of a progression of a movement of the second rated current contact piece 14 in dependence on the course of the stationary sliding gear 26.
  • This pivoting movement is transmitted via the slot in the hammer head of the second arcing contact piece 13 to the arcing contact piece 13.
  • a movement of the second arcing contact piece 13 takes place with a movement profile which deviates from the movement profile of the second rated current contact piece 14.
  • the two-armed lever 25 acts as a second output means of the second kinematic chain.
  • the first output means 20 of the first kinematic chain is connected to the drive means of the second kinematic chain, wherein the insulating nozzle 16 serves as an electrically insulating transmission element.
  • the first arcing contact piece 11 is also removed from the insulating nozzle 16, so that the gap increases to the orifice of the nozzle channel. Due to the operation of the first reduction gear 19, the first arcing contact piece 11 moves faster than the first rated current contact piece 12 (see. Fig. 7 and related description). Via the insulating nozzle 16 and the connecting rod 22, a movement of the first kinematic chain is transmitted to the crank arm 24.
  • the set of the crank arm 24 has such a shape (concentric circular path around the crank pivot point) that initially no movement can be transmitted to the second rated current contact piece 14 and the second arcing contact piece 13 ( Fig. 2 ). At the moment of the separation of the rated current contact pieces 12, 14 ( Fig.
  • the arcing contact pieces 11, 13 can lead after switching to a switching arc, which preferably burns within the nozzle channel.
  • Switch gas heated by the switching arc can be discharged from the nozzle channel in the direction of the mouth opening of the first arcing contact piece 11 and led away in the channel of the first arcing contact piece 11. Furthermore, hot switching gas can be temporarily stored in the heating volume 15 and compressed.
  • the compressed switching gas flows from the heating volume into the nozzle channel and clears it of remaining residues.
  • the arcing contact pieces 11, 13 and the rated current contact pieces 12, 14 are further apart.
  • a safe end position is reached, in which at stable dielectric ratios between the contact sides 6, 7 deviating electrical potentials are separated from each other.
  • the switch-off position Fig. 6
  • FIG. 7 is the first reduction gear 19 a of a first embodiment shown in detail.
  • the first reduction gear 19 has a one-armed lever 27.
  • the one-armed lever 27 is fixedly mounted on the first support member 8 pivotally.
  • the drive rod 18 is rotatably connected by means of a bolt with the one-armed lever 27.
  • the bolt also passes through a slot of the first output means 20.
  • the first output means 20 is formed substantially tubular, wherein the first rated current contact piece 12 and the insulating nozzle 16 are connected to the output means 20.
  • About the slot of the first output means 20 can be compensated during a swing of the one-armed lever 27 overtravel, while the rotatable connection between the drive rod 18 and one-armed lever 27 is compensated by the bolt by an elastic deflection of the drive rod 18.
  • the second output means 21 is guided displaceably in the interior of the tubular first output means 20.
  • a crank of the second output means 21 protrudes from the interior of the first output means 20 via an opening located in the first output means 20 on the shell side.
  • the offset of the second output means 21 is connected to the one-armed lever.
  • the offset has for this purpose a slot in which a pin of the one-armed lever 27 engages.
  • the distance of the pin from the pivot point of the one-armed lever 27 is greater than the distance of the bolt from the pivot point of the one-armed lever 27. Accordingly, the second output means 21 is moved faster than the first output means 20.
  • the two output means 20, 21 so mutually different motion profiles on the first rated current contact piece 12 and the first arcing contact 13. In the after FIG. 7 provided embodiment start and end the movements of different movement profiles of the two output means 20, 21 at the same time.
  • FIG. 8 a second embodiment of a first reduction gear 19a is shown.
  • the drive rod 19 is bolted directly to the first output means 20.
  • a movement of the drive rod 18 is transmitted directly to the first output means 20 and the first rated current contact piece 12 and the insulating nozzle 16.
  • the drive rod 18 as a drive means thus moves similar to the first output means 20.
  • a two-armed lever 28 is rotatably mounted.
  • a first lever arm of the reversing lever 28 is connected to the second output means 21.
  • the second output means 21 has a slot in which slides a pin of the first lever arm.
  • a second lever arm of the reversing lever 28 is equipped with a sensing element which engages in a link which is fixedly connected to the first support member 8.
  • the gate has in each case a parallel course to the movement axis of the first arcing contact piece 11.
  • a central region of the gate has a pitch with respect to the axis of movement of the first arcing contact piece 11.
  • the second output means 21 is moved faster or slower relative to the first rated current contact piece 12.
  • the movement profile of the second output means 21 can vary.
  • the second output means 21 is connected to the first arcing contact piece 11.
  • the first rated current contact piece 12 and the first arcing contact piece 11 are moved with different motion profiles.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP14700818.9A 2013-01-22 2014-01-07 Schaltverfahren und schalteinrichtung Not-in-force EP2923369B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013200914.3A DE102013200914A1 (de) 2013-01-22 2013-01-22 Schaltverfahren und Schalteinrichtung
PCT/EP2014/050135 WO2014114484A1 (de) 2013-01-22 2014-01-07 Schaltverfahren und schalteinrichtung

Publications (2)

Publication Number Publication Date
EP2923369A1 EP2923369A1 (de) 2015-09-30
EP2923369B1 true EP2923369B1 (de) 2017-05-17

Family

ID=49998224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14700818.9A Not-in-force EP2923369B1 (de) 2013-01-22 2014-01-07 Schaltverfahren und schalteinrichtung

Country Status (7)

Country Link
US (1) US9460873B2 (ru)
EP (1) EP2923369B1 (ru)
CN (1) CN104956457B (ru)
AU (1) AU2014210106B2 (ru)
DE (1) DE102013200914A1 (ru)
RU (1) RU2619272C2 (ru)
WO (1) WO2014114484A1 (ru)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3252793B1 (en) * 2016-06-03 2021-01-27 ABB Schweiz AG Switching device with dual conductive housing
DE102016226034A1 (de) * 2016-12-22 2018-06-28 Siemens Aktiengesellschaft Elektrische Schalteinrichtung
EP3828909B1 (en) * 2019-11-29 2023-09-13 General Electric Technology GmbH Circuit breaker with simplified non-linear double motion
CN117393363A (zh) * 2023-11-14 2024-01-12 国网宁夏电力有限公司 一种双动式高压六氟化硫断路器传动装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1026184A1 (ru) * 1982-03-05 1983-06-30 Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Высоковольтного Аппаратостроения Ленинградского Производственного Объединения "Электроаппарат" Коммутационное устройство
DE19622460C2 (de) * 1996-05-24 1998-04-02 Siemens Ag Hochspannungs-Leistungsschalter mit zwei antreibbaren Schaltkontaktstücken
EP0953199B1 (de) * 1997-01-17 2001-12-05 Siemens Aktiengesellschaft Hochspannungs-leistungsschalter mit einer axial verschiebbaren feldelektrode
FR2817389B1 (fr) * 2000-11-30 2003-01-03 Schneider Electric High Voltag Appareillage de coupure electrique haute tension a double mouvement
KR100675984B1 (ko) 2005-07-12 2007-01-30 엘에스산전 주식회사 가스절연 차단기
JP5178644B2 (ja) * 2009-06-29 2013-04-10 株式会社東芝 投入抵抗接点付きガス遮断器及びその投入、遮断方法
FR2962252B1 (fr) 2010-07-01 2013-08-30 Areva T & D Sas Chambre de coupure pour disjoncteur a moyenne ou haute tension a energie de manoeuvre reduite
CN103518246A (zh) * 2011-05-13 2014-01-15 Abb技术有限公司 双动作式运动气体绝缘型断路器
DE102011083588A1 (de) * 2011-09-28 2013-03-28 Siemens Aktiengesellschaft Anordnung aufweisend eine Leistungsschalterunterbrechereinheit
DE102012200238A1 (de) * 2012-01-10 2013-07-11 Siemens Aktiengesellschaft Elektrisches Schaltgerät
US20140175061A1 (en) * 2012-12-20 2014-06-26 Abb Technology Ag Electrical switching device with a triple motion contact arrangement

Also Published As

Publication number Publication date
US9460873B2 (en) 2016-10-04
AU2014210106B2 (en) 2017-03-16
RU2619272C2 (ru) 2017-05-15
CN104956457B (zh) 2018-10-16
RU2015135385A (ru) 2017-03-03
WO2014114484A1 (de) 2014-07-31
EP2923369A1 (de) 2015-09-30
US20150364280A1 (en) 2015-12-17
AU2014210106A1 (en) 2015-07-16
DE102013200914A1 (de) 2014-07-24
CN104956457A (zh) 2015-09-30

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