EP2430645B1 - Hochspannungsschaltvorrichtung - Google Patents

Hochspannungsschaltvorrichtung Download PDF

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Publication number
EP2430645B1
EP2430645B1 EP20110727691 EP11727691A EP2430645B1 EP 2430645 B1 EP2430645 B1 EP 2430645B1 EP 20110727691 EP20110727691 EP 20110727691 EP 11727691 A EP11727691 A EP 11727691A EP 2430645 B1 EP2430645 B1 EP 2430645B1
Authority
EP
European Patent Office
Prior art keywords
load
contact
contact element
switching
isolating
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
EP20110727691
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2430645A1 (de
Inventor
Raimund Buhl
Manfred Binder
Volker Kopke
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.)
Ipt International Power & Technology GmbH
Original Assignee
Ipt International Power & Technology GmbH
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 Ipt International Power & Technology GmbH filed Critical Ipt International Power & Technology GmbH
Publication of EP2430645A1 publication Critical patent/EP2430645A1/de
Application granted granted Critical
Publication of EP2430645B1 publication Critical patent/EP2430645B1/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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • 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
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches

Definitions

  • the invention relates to a high voltage switching device for switching electrical contacts of a conductor according to the features of the preamble of claim 1.
  • High voltage in the sense of this application is any voltage above 1,000 volts (1 kV), which means in particular AC voltages (an application is not limited to AC voltages).
  • switching elements that can only switch no-load currents, which are collectively referred to herein as "disconnecting elements", and those switching elements that are capable of switching load currents, which are divided once again in the high-voltage technology in load switch and circuit breakers, the latter being provided for higher voltages and currents, in particular must be able to switch in the event of a short circuit.
  • load switching element all the switching elements which are also capable of switching load currents are summarized under the term "load switching element".
  • load switches are at least in the range of the middle voltage level (up to about 52 kV).
  • a protective gas atmosphere of SF 6 which quickly extinguishes the gas resulting from the switching arc switching arc and thus prevents destruction of the switch.
  • this gas is an enormously powerful greenhouse gas. In terms of mass, this gas has more than 20,000 times more harmful effects than the commonly known as greenhouse gas carbon dioxide.
  • SF 6 sulfur hexafluoride
  • SF 6 sulfur hexafluoride
  • SF 6 encapsulated load switch or load switchgear by other switching means.
  • the vacuum interrupters already used in the higher power range can be used.
  • two contact elements are arranged via a metallic bellows or similar device movable in an evacuated space, typically a ceramic tube, which form the electrical contact when moving towards each other. Due to the high vacuum with very low residual pressure, the formation of a switching arc is prevented here, or it breaks down again in the absence of ionizable gas immediately after a natural zero crossing.
  • From the DE 35 28 770 A1 is a medium voltage switchgear with a movable via a common linear drive combination of a circuit breaker and a vacuum interrupter known.
  • the circuit breaker is arranged in a gas-tight housing, which is filled with an insulating medium, in particular SF 6 .
  • This switching device is designed in the design as a pure Kommut réellestrenner, in which the extinguishing device, so the vacuum interrupter must be designed only to a recovery voltage of less than 1,000 volts. As a load or Power switching element for the high voltage range, this switching arrangement is therefore not applicable.
  • the first disconnecting contact element of the disconnecting switching element is designed such that, in the event of a movement triggered by the drive, in any event one of its components is the first load contact element for closing or closing Opening the load switching element relative to the second load contact element moves or triggers such a movement.
  • This movement of the first load contact element through the first disconnect contact element or through one of its components is particularly preferably directly and directly, so without the interposition of any gear or other transmission means, but can also be done by the operation of a trigger mechanism.
  • the high-voltage switching device includes a disk connected to a drive via a rotation axis.
  • a metal rail is arranged, which forms part of the first separating contact element as well as a first sliding contact connected to a contact conductor.
  • the second isolating contact element has a second sliding contact, which also acts on the metal rail.
  • the first sliding contact can act on the metal rail or is separated from it.
  • the first isolating contact element is designed so that it also moves the first load contact element for switching the load switching element during its movement by the drive at the same time or triggers its movement.
  • a load switching element other elements can be selected in addition to a vacuum interrupter, for example Heidelbergkammem with oil or SF 6 as extinguishing medium. If SF 6 or oil is selected, then this medium should preferably be housed in a similar encapsulated structure, as in the vacuum interrupter, on the one hand to minimize the amount of SF 6 required and on the other to prevent escape of this medium.
  • a plurality of inventive high-voltage switching elements can be arranged one behind the other and operated with a single drive shaft, which penetrates all disks and rotates due to the choice of the disc as part of the separating switching element.
  • the three phases of a high voltage line to be switched with a drive shaft e.g. the three phases of a high voltage line to be switched with a drive shaft.
  • the first load contact element is further acted upon by a restoring force in an open position in which it is electrically isolated from the second load contact element.
  • a restoring force in an open position in which it is electrically isolated from the second load contact element.
  • the high-voltage switching device has latching means which hold the first load-contact element in a closing position against the restoring force.
  • means for releasing the latching means are arranged on the first isolating contact element, which release the latching means in a switching position of the high-voltage switching device, in which the first isolating contact element is in electrical contact with the second isolating contact element.
  • a corresponding means such as a driving lug or a comparable projection, can be arranged on the first isolating contact element or on a component carrying it, which causes it to be detached from the first load contact element when it is abutted against an element of the latching means.
  • the structure according to the invention allows the omission of any extinguishing medium, in particular so of SF 6 , in the region of the separating switching element, which can be arranged without special encapsulation in air.
  • the switching movement of the first load contact element controlled by the first disconnect contact element is expediently controlled and the said elements are designed such that first the disconnect switching element closes when a contact of the high-voltage switch device is closed, before the load switching element for transmitting the electrical load is closed, in the opening case initially the load switching element opens and the disconnect switching element then opens normally, without switching energy and thereby possibly trigger a switching arc, which could destroy the disconnect switching element.
  • the metal rail is advantageously designed as provided in claim 3. Accordingly, it has in the radial direction seen from the axis of rotation of an extent along which the second sliding contact can be moved. Further, means are provided on the disc and the second isolating contact element, which cause a radial displacement of the second isolating contact element, so as to move the first load contact element for switching the load switching element. In other words - as seen in a radial direction relative to the axis of rotation - the second isolating contact element arranged to be displaceable outwards and thus acts on the first load contact element.
  • corresponding means are arranged, which cause a displacement of the second separating contact element, wherein the metal rail is sufficiently wide, that is expanded in the radial direction, to maintain the electrical contact between the second sliding contact and the metal rail along the travel path of the second separating contact element.
  • Means for radially displacing the first load contact element may be provided, which move a guide path on the disc and on the guide path, comprising engaging or at least indirectly acting on the first load contact element.
  • These rollers can be arranged on the second isolating contact element and move it as described above, so as to effect a displacement of the first load contact element.
  • the second separating contact element with its rollers on the istsungskulissenbahn which is preferably designed so that they only in an in the direction of rotation after an angular position in which a sliding contact of another component of the first separation contact element to the metal rail engages and thus the disconnect switch element is closed, lying angle position causes a displacement of the second isolating contact element radially outwards, in which this second isolating contact element has continuous contact with the metal rail and so the first load contact element is brought into electrical connection with the second load contact element, then the To close the load switching element according to the invention in high voltage switching devices.
  • rollers directly to the first load contact element or to a component rigidly connected thereto so as to shift the first load contact element directly.
  • first load contact element and the second disconnect contact element move relative to each other, the forwarding of the electrical Current between these elements can then be done via other connection paths as a radially movable sliding contact.
  • the guide track path can be designed on the disc so that during a switching operation in the opening direction initially the second separating contact element on the foundedskulissenbahn so unrolls that an opening of the load switching element is made possible before the disconnect switching element by releasing a component of the first disconnect contact element of the metal rail in the open position device.
  • a circuit closure and compensate for corresponding tolerances, can be advantageously in the range of the switching position or the switching positions in which or in which the load contact element is closed, be provided with respect to the axis of rotation radially outwardly spring-loaded, relative to the rest of the guide track path movable plungers (see claim 5).
  • the guide track path can have an increase, which causes it to move radially outward before reaching the closed position of the first load contact element. This movement ensures by a certain pressing of the first load contact element against the second load contact element in the switching operation, a safe and reliable electrical connection in the on position of the load switching element.
  • the means for radially displacing the second disconnect contact element may also comprise permanent magnets arranged on the disk on the second disconnect contact element and directed towards one another with poles of the same name.
  • the means for radially displacing the second disconnect contact element may also comprise permanent magnets arranged on the disk on the second disconnect contact element and directed towards one another with poles of the same name.
  • the skilled person must provide only sufficiently strong permanent magnets here to safely trigger the switching process and perform.
  • the high-voltage switching device has three connections, namely a connection to a busbar, a connection to an outgoing line branch and a grounding connection, wherein the load switching element is arranged at the connection to the outgoing line branch.
  • the outgoing line branch can be electrically connected via the disconnecting switching element and the load switching element selectively connected to the busbar, electrically connected to the ground or disconnected from all electrical connections.
  • a high-voltage switch is formed from three high-voltage switching devices constructed according to the invention. Conveniently, these three high-voltage switching devices are then arranged so that they are operated by one and the same drive, using a disk provided with a metal rail, these discs of all three high-voltage switching devices preferably sit on a common axis of rotation by a single drive (whether motor or manually).
  • FIGS. 11 to 17 variant shown a total of three embodiments of a high voltage switching device are shown in a schematic representation, of which, however, only the third, in the FIGS. 11 to 17 variant shown has all inventive and inventive features.
  • the high-voltage switching devices shown in the preceding figures are insofar no embodiments according to the invention, but contain individual features that can also be used in a high-voltage switching device according to the invention, and thus serve to explain these features.
  • Also shown in the figures are high-voltage switches with high-voltage devices of such type arranged one behind the other for the three phases of the three-phase current.
  • This high-voltage switching device 1 comprises, arranged in a housing 2, a disc 3.
  • This disc 3 has centrally an internally toothed opening 4, through which the axis of rotation or drive shaft of a drive can be passed rotationally relative to the disc.
  • the disc 3 is formed in the radial direction, as seen from the opening, with different extensions. Over an angular range of slightly more than 180 °, a portion of further expansion, in which a metal rail 5 is inserted as contact extends. Further, a mecanicsungskulissenbahn 6 is formed on the disc 3, in which a total of two in the radial direction outwardly movable and each biased by a spring 7 radially outward thrust pieces 8 are arranged.
  • a total of three contacts are arranged, namely a busbar contact 9, a Earthing contact 10 and a branch contact 11. All these contacts have sliding contacts 12, 12 a, which are arranged in a position in which they can contact the metal rail 5 depending on the angular position of the disc 3.
  • the branch contact 11 which also forms the second isolating switch contact, is directly electrically and mechanically connected to a first load switching contact 13 of a vacuum interrupter 14.
  • This first load switching contact 13 is axially movable in the vacuum interrupter 14 in the direction of a second load switching contact 15 fixed relative to the vacuum interrupter 14 away from this.
  • the branch contact 11 as a whole, ie with its sliding contacts 12a in the radial direction with respect to the central opening 4 and thus in the axial direction of the vacuum interrupter 14 movable.
  • the first load switching contact 13 is biased by means of a spring (not shown here) in an open position in which it is separated from the second load switching contact 15.
  • the branch contact 11 is fixedly connected to rollers 16 which run along the réellesungskulissenbahn 6 along.
  • a movement of the branch contact 11 in the radial direction is caused when the disc 3 is moved through a through the opening 4 projecting through the axis of rotation or shaft.
  • the extent of the metal rail 5 in the radial direction is selected such that a displacement of the branch contact 11 can take place in this direction without the sliding contacts 12a assigned to this branch contact 11 coming loose from the metal rail 5.
  • Fig. 1 the high-voltage switching device 1 is shown in a position in which the branch is completely separated electrically and connected to any other line piece.
  • the metal rail 5 is connected to the branch contact 11 in connection, but is not connected by another component of the first separating contact element, namely the sliding contacts 12 either of the busbar contact 9 or the grounding contact 10.
  • the first Load switch contact 13 is released from the second load switching contact 15, so that the load switching element in the form of the vacuum interrupter 14 is located in an open position.
  • the open position of the separating switching element formed by the sliding contacts 12, 12a and the metal rail 5 can now be made visible in accordance with the standards by either a housing cover of the high voltage switching device 1 is made transparent and thus immediately visible, or by an opening 4 through the projecting axis of rotation or switching shaft is provided with corresponding markings that indicate the position of the disc 3 directly visually.
  • Fig. 2 is a further switching position of the high voltage switching device 1 is shown. This was achieved by rotation of the disc 3 from the in Fig. 1 shown position clockwise by 60 °. In this position, an electrical contact between the busbar and the branch line is made, the busbar contact 9 is connected with its sliding contacts 12 via the metal rail 5 and the sliding contacts 12a with the branch contact 11 and wherein the directly to the sliding contacts 12a electrically connected load switching contact 13 in the vacuum interrupter 14 is in electrical connection with the second load switching contact 15.
  • a further switching position of the high-voltage switching device 1 is shown, which consists of the in Fig. 1 is reached by turning it 60 ° counterclockwise.
  • this switching position a connection of the branch to the ground is made by the grounding contact 10 is connected to the branch contact 11 and the load switching contacts 13 and 15 are brought into contact with each other. Similar to when switching to the in Fig.
  • the high voltage switching device 20 comprises a housing 2 in which a disc 3 is rotatably arranged, which has in its center an internally toothed opening 4 for connection to a rotation axis or drive shaft. Again, along the disc 3, a metal rail 5 as a contacting element and part of the separation switching element, more precisely, the first separation switching contact, is provided.
  • a busbar contact 9 which is electrically and mechanically connected to a first load switching contact 13 in a vacuum interrupter 14, in turn with a fixed second power switch contact 15 can be brought into electrical connection.
  • the spring 17 can be seen, which forces the first load switching contact 13 in an open position in which this seen in the axial direction is maximally removed from the second load switching contact 15 and thus the load switching element in the form of the vacuum interrupter 14 opens.
  • ground contact 10 and branch contact 11 turn sliding contacts 12, 12a are arranged, which engage the metal rail 5 and so can make electrical contact with each other.
  • the branch contact 11 has no role and the disc 3 no sliding guide track. Rather, 3 permanent magnets 19 are arranged at certain positions of the disc in this embodiment, and a permanent magnet 18 is fixed to the branch contact 11. In this case, the permanent magnets 18 and 19 are aligned so that the permanent magnets 19 each point with the same pole radially outward and the permanent magnet 18 also with the same pole in the radial direction with respect to the opening 4 points inwards. Thus, therefore, the permanent magnets 18 and 19 may face each other in a way that poles of the same name meet each other and thus cause a repulsion.
  • Fig. 4 is the high voltage switching device 20 in one of Fig. 1 according to the above-described non-inventive embodiment illustrated comparative position in which both the disconnecting element is open by the sliding contacts 12 of the contacts busbar contact 9 and grounding contact 10 are released from the metal rail 5, and at the same time the load switching element in the form of the vacuum interrupter 14 in the open position befindlich is where the first power switch contact 13 is disconnected and removed from the second power switch contact 15.
  • This also applies to this open position Fig. 1 namely that a corresponding line of sight is formed in accordance with the standards that can be visualized in the manner described above.
  • Fig. 5 is the high voltage switching device 20 now in one of Fig. 2 shown comparable position in which the busbar contact 9 is electrically connected to the branch contact 11.
  • the disconnecting switching element is closed by contacting the sliding contacts 12 of the busbar contact 9 with the metal rail 5 and the sliding contacts 12a of the branch contact 11 with just this metal rail 5, then is at existing switching closure of the disconnecting switching element by further rotation of the disc 3 and moving the permanent magnet 19 in the region of the permanent magnet 18 and the repulsive force of the branching contact 11 occurring between these poles of the same name opposite to each other are pressed radially outward with respect to the opening 4 and thereby the first Load switching contact 13 has been connected to the second load switching contact 15 in the vacuum interrupter 14. Now there is an electrical connection between the busbar contact 9 and the branch contact.
  • Fig. 6 is for the high voltage switching device 20 one of the first embodiment in Fig. 3 shown switching position corresponding switching position shown, in which the branch contact 11 is connected to the ground contact 10.
  • the metal rail 5 first ensures closing of the disconnecting switching element, in that the sliding contacts 12 of the earthing contact 10 and the sliding contacts 12a of the branch contact 11 come into contact simultaneously with the metal rail 5, only after that is the load switching element in the form of the vacuum interrupter 14 through the repulsive force of the permanent magnets 19 and 18 and the resulting movement of the first load switching contact 13 is closed.
  • FIGS. 7 and 8th shows the construction of a complete high-voltage switch for the three phases of a three-phase current, as it results in the direction of the openings 4 penetrating through the axis of rotation or drive shaft successively provided arrangement of three high-voltage switching devices 1. All three high-voltage switching devices are operated here with a single drive, so that all three phases of the high voltage are switched simultaneously accordingly. Of course, it is also possible to connect the series arrangement of a multiple of three such Hochhardsschaltvorraumen1 at several branches (three-phase) at the same time with a drive. It is in Fig. 7 the representation with partially opened housing, in Fig. 8 an arrangement of the voltage switching devices with closed housing shown.
  • the high-voltage switching device according to the invention can also be used in a two-phase AC voltage network as a single-pole switch or in a two-combination for connecting both phases of a branch or also be used for switching conductors of a DC voltage network.
  • FIGS. 11 to 17 Now, an embodiment of a high-voltage switching device 21 according to the invention is shown with the functionally essential components. This embodiment will be described below with reference to the respective figures, wherein like elements in the figures are identical and function in their functionality as described. In this respect, with regard to the representation of individual figures, to which individual elements and their mode of operation are not described in detail, the corresponding description of the elements in the other figurative representations can be accessed and referred to.
  • the high-voltage switching device 21 also has a disk 23, which is mounted in a housing (not illustrated here) and rotatable about an axis of rotation 22. This disk 23 is located with the axis of rotation 22 in the center between three each by 120 ° angularly offset contact terminals, namely a busbar terminal 24, a terminal 25 to an outgoing line branch and a ground terminal 26th
  • a conductive material, in particular copper, formed contact rail which rotates with the disc 23.
  • the contact rail 27 has thickened contact heads 28 at its two end regions, which are seen in their longitudinal direction.
  • sliding contacts 29, 30 and 31 are arranged in the high-voltage switching device 21, wherein these are positioned so that in each case two of the Sliding contacts 29, 30 and 31 can come into electrical contact with the contact heads 28 of the contact rail 27.
  • the sliding contact 29 is assigned to the busbar connection 24, the sliding contact 30 leads to a connected to the terminal 25 to the outgoing line branch vacuum interrupter 32, the sliding contact 31 contacts the ground terminal 26th
  • a gate guide track 33 is further formed, on which a connected to a first load contact element of the vacuum interrupter 32 roller 34 runs and rolls.
  • the high-voltage switching device 21 is shown in a switching position in which the busbar is connected via the busbar terminal 24 with the outgoing line branch via the terminal 25 to the same.
  • a formed in the high-voltage switching device 21 in this embodiment separating switching element in the form of sliding contacts 29 and 30 in conjunction with the contact rail 27 is closed, also acting as a load switching element vacuum interrupter 32 is also closed by the first load contact element moves over the on the slide guide track 33 running roller 34 and the rigidly connected to this roller 34 switch punch 35 is pressed against a located in the vacuum interrupter second load contact element and brought into electrical contact with this.
  • electrical current can flow from the busbar to the outgoing leg of the line.
  • Fig. 12 is one of the Fig. 11 Comparable switching position shown, in which only the disc 23 is rotated by 240 ° counterclockwise to connect the connection to the outgoing line branch 25 to the ground terminal 26 in this switching position.
  • Fig. 13 an open position of the high voltage switching device 21 is shown according to this embodiment of the invention. Again, the presentation is again limited to the essential elements of this switching device. It can be clearly seen here that the disk 23 is rotated into a position in which the two contact heads 28 of the contact rail 27 are in electrical connection with none of the sliding contacts 29, 30 or 31. The disconnect switching element is thus, and this can be made visible by selecting eg transparent housing from the outside, in an open position. Of the sliding contacts 29, 30, 31 no one is contacted.
  • the roller 34 is located on a closer to the axis of rotation 22 position on the réellesungskulissenbahn 33, the switching punch 35 and with him the first load contact element of the vacuum interrupter 32 is retracted and thus the vacuum interrupter 32 also in an open position. Accordingly, the latching elements 40 are released from the notches 38 in the switching punch 35.
  • the coil springs 36 and 37 are relaxed, have driven the first load contact element in the Ausschalttraum.
  • a drive cam 41 arranged on the disk 23 outside the guide slot 33, the function of which will be described below.
  • a similar driving cam 41 is located on the disc in symmetrical positioning in a below the in the Fig. 13b right illustrated contact head 28 hidden position.
  • the driving cam 41 located in this position is in Fig. 14b to recognize.
  • FIGS. 13b and 14b are also shown in the slide tracks 33 in a region below the contact heads 28 arranged elevations 42.
  • Fig. 14 in the representations a and b is similar to that in the Fig. 15 a position of the high voltage switching device 21 shown as it is shortly before reaching the total closed position. It shows the Fig. 14 a position shortly before establishing a complete circuit closure between the outgoing line branch and the grounding connection, for grounding the line branch, eg for the purpose of maintenance work to be performed thereon, whereas Fig. 15 a corresponding switching position shortly before the complete production of a circuit closure between the busbar connection and the outgoing line branch for covering this line branch with mains voltage shows.
  • the roller 34 passes over the elevation 42 in the ceremoniesskulissenbahn 33, which causes an additional overstroke in the order of 2 to 3 mm outwards, ie away from the axis of rotation 22, which ensures that the contact even after several switching operations and one corresponding wear of the switch contacts in the vacuum tube 32 sure comes about.
  • the guide track path 33 drops off again in the direction of the axis of rotation 22.
  • This elevation 42 causes a closing of the load switching element in the form of the vacuum interrupter 32 with an excessive at the beginning of the closing pressure, so that an electrically conductive and secure contact between the both contact elements in the vacuum interrupter 32 is ensured and the risk of a Heidelbergentladungs realise is further reduced.
  • Fig. 16 is shown in four successive switching positions of the high-voltage switching device 21 according to this embodiment, the sequence of the Ausschaltvorganges the vacuum interrupter 32.
  • a switching position is shown, in which both the disconnecting switching element and the load switching element are closed and the outgoing line branch is electrically connected to the busbar.
  • the latching elements 40 engage in the notches 38 of the switching punch 35 and hold it in the closed switching position of the vacuum interrupter 32.
  • this detail corresponds to the in Fig. 11 illustrated switching position.
  • the disconnect switching element remains electrically closed, since further the contact heads 28 are in communication with the sliding contacts.
  • the location of the driving cam on the disc 23 is selected so that the described triggering operation for releasing the load contact elements from each other (opening the vacuum interrupter) in the course of this required travel path of the disc is performed and process takes place in such a span, in the permanent permanently connected by the contact heads 28 still applied to the sliding contacts the separating switching element is still closed. The actual switched off with electrical power switching process thus takes place exclusively in the vacuum interrupter.
  • FIGS. 17a and b are (in each case in a view of a front and a back) enlarged again the elements of the locking means 39 shown.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP20110727691 2010-06-23 2011-06-21 Hochspannungsschaltvorrichtung Not-in-force EP2430645B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201020009448 DE202010009448U1 (de) 2010-06-23 2010-06-23 Hochspannungsschaltvorrichtung
PCT/EP2011/060379 WO2011161121A1 (de) 2010-06-23 2011-06-21 Hochspannungsschaltvorrichtung

Publications (2)

Publication Number Publication Date
EP2430645A1 EP2430645A1 (de) 2012-03-21
EP2430645B1 true EP2430645B1 (de) 2015-04-29

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Application Number Title Priority Date Filing Date
EP20110727691 Not-in-force EP2430645B1 (de) 2010-06-23 2011-06-21 Hochspannungsschaltvorrichtung

Country Status (4)

Country Link
EP (1) EP2430645B1 (zh)
CN (1) CN102947914A (zh)
DE (1) DE202010009448U1 (zh)
WO (1) WO2011161121A1 (zh)

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DE102012200962B4 (de) * 2012-01-24 2018-07-26 Siemens Aktiengesellschaft Schaltgerät, insbesondere Lasttrennschalter, für Mittelspannungs-Schaltanlagen
CN104335312B (zh) * 2012-06-25 2017-05-24 西门子公司 用于中压开关设备的三工位负荷隔离开关
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CN106057585B (zh) * 2016-06-28 2018-04-20 徐华英 一种高压接触器
CN106158521B (zh) * 2016-07-30 2018-07-24 山东电工配网科技发展有限公司 一种高压断路器
CN109655743A (zh) * 2018-12-30 2019-04-19 珠海多监测科技有限公司 一种隔离开关的分合闸状态检测方法及装置
CN109830911B (zh) * 2019-01-10 2024-01-12 广东阿尔派电力科技股份有限公司 环保气体绝缘全封闭全绝缘环网开关设备
CO2019006270A1 (es) 2019-06-15 2019-12-20 Gualdron Florez Jesus Equipo interruptor seccionador para procedimiento de seguridad eléctrica y cumplimiento de las cinco reglas de oro de seguridad eléctrica desde un mismo equipo
EP3843117B1 (en) * 2019-12-24 2023-11-15 Elna Kabel d.o.o. Load-break switch without sf6 gas having a vacuum circuit interrupter for medium-voltage switching systems
CN112435876B (zh) * 2020-11-26 2023-05-23 海南电网有限责任公司三亚供电局 一种综合柜用三工位开关结构
CN113013793B (zh) * 2021-03-15 2022-08-02 浏阳市金锋机械科技有限公司 一种智能剥线器

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FR2722912B1 (fr) * 1994-07-20 1996-09-13 Schneider Electric Sa Interrupteurs electriques moyenne tension
CN101604573B (zh) * 2009-04-28 2011-09-07 武汉长虹恒通高压设备有限公司 无励磁转换调压分接开关

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DE202010009448U1 (de) 2010-09-09

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