WO2023285716A1 - Interrupteur de coupe en charge ou de courants de court-circuit et équipement électrique comprenant ledit interrupteur - Google Patents

Interrupteur de coupe en charge ou de courants de court-circuit et équipement électrique comprenant ledit interrupteur Download PDF

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Publication number
WO2023285716A1
WO2023285716A1 PCT/ES2022/070437 ES2022070437W WO2023285716A1 WO 2023285716 A1 WO2023285716 A1 WO 2023285716A1 ES 2022070437 W ES2022070437 W ES 2022070437W WO 2023285716 A1 WO2023285716 A1 WO 2023285716A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
short
load
disconnector
circuit
Prior art date
Application number
PCT/ES2022/070437
Other languages
English (en)
Spanish (es)
Inventor
Javier Larrieta Zubia
Severo Aranaga Lopez
Sergio BARRIO RODRIGUEZ
Jesús IZCARA ZURRO
Asier Bilbao Lezeta
Original Assignee
Ormazabal Corporate Technology, A.I.E.
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 Ormazabal Corporate Technology, A.I.E. filed Critical Ormazabal Corporate Technology, A.I.E.
Priority to EP22753720.6A priority Critical patent/EP4372778A1/fr
Publication of WO2023285716A1 publication Critical patent/WO2023285716A1/fr

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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
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • H01H33/126—Load break switches comprising a separate circuit breaker being operated by the distal end of a sectionalising contact arm
    • 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
    • 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
    • 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

Definitions

  • the invention refers to a switch for breaking load or short-circuit currents, for application in electrical power distribution networks, comprising a main circuit for circulating electrical current and a secondary circuit for circulating electrical current in shunt.
  • the main circuit comprises a switch-disconnector with a fixed contact and a mobile contact, while the secondary circuit comprises a vacuum interrupter that is actuated by the mobile contact of the switch-disconnector.
  • the load break or short-circuit current switch of the invention can adopt at least three operating positions, connection - break - disconnection, as well as a fourth grounding, comprising in the latter case a grounding contact,
  • a load-cutting or short-circuit current switch capable of executing up to four operating positions (connection, cutting, sectioning and grounding).
  • Another object of the invention is an electrical equipment, such as a cubicle, which incorporates said load cut-off or short-circuit current switch in an insulated casing in a dielectric medium.
  • the electrical switchgear used in electricity distribution networks is installed in some usually metallic enclosures, called cells.
  • Said switchgear includes operating means that carry out the functions of cutting - sectioning - grounding of the installation.
  • operating means such as disconnectors are used that comprise two contacts that can be joined to let the current pass or leave a physical separation determined by the safety standard or the manufacturer to prevent the passage of the current, and which also comprise a third contact for grounding the electrical circuit.
  • these disconnectors are sometimes not capable of performing the functions of the switch, that is, cutting the current when the circuit is on load or in the event of a fault due to overcurrent, if they have not been designed for it or do not have the appropriate extinguishing means. .
  • operating means constituted by vacuum switches are known, which consist of a bottle inside which is housed a pair of electrical contacts, one fixed and the other mobile that moves by operating a operating mechanism, to perform the functions of cutting - connection of the corresponding electrical circuit.
  • vacuum interrupters are not used for current cutting functions when the circuit is on load due to their high cost.
  • the mobile contact of the main circuit disconnector in its opening sequence, intercepts / interacts with an actuation means arranged in the branch of the secondary circuit and which is associated with the vacuum interrupter by means of a kinematic chain or system movement transmission to act on the mobile contact of said vacuum interrupter and cause its opening.
  • the actuation means is arranged at the free end of the branch of the secondary circuit, connected to it by means of an articulated area equipped with a stop that prevents the movement of the actuation means in the opening direction of the disconnector and a spring that allows the movement of the actuation means in the closing direction of the disconnector, and that once the actuation means of the mobile contact of the disconnector is released, said spring makes the actuation means return to the stop position in closing the disconnector.
  • the actuation means comprises a first face covered by a conductor directed towards the disconnector and a second face opposite to the first and covered with an insulator.
  • ES2526220T3 there is a means of actuating the mobile contact of the vacuum interrupter in the branch of the secondary circuit, with the difference that in this solution the mobile contact of the vacuum interrupter is blocked in its open position until that the main circuit disconnector performs the closing sequence.
  • the purpose of this blocking is to protect against a possible quick reclosing of the secondary circuit.
  • this blocking means that the vacuum interrupter is not ready for the next breaking maneuver and that the entire branch of the secondary circuit or derivation is not at the same electrical potential while the disconnector is kept open.
  • control mechanism comprises a rotary rocker as means of actuation of the mobile contact of the vacuum interrupter, which connects a rod that is associated with the moving contact of the vacuum interrupter with the moving contact of the main circuit.
  • the actuation means of the moving contact of the vacuum interrupter is part of the branch of the secondary circuit, being the electrical conduction through the branch of the secondary circuit provided by the rocker itself or possibly by a commutation conductive lug, electrically connected to the mobile contact of the vacuum interrupter and which extends to a free end superimposed approximately on a free end of the rocker which intercepts the movable contact of the main circuit, rubbing this movable contact of the main circuit on the free end of the switching lug.
  • DE102004006476B4 also defines an actuation means for the mobile contact of the vacuum interrupter that is part of the branch of the secondary circuit, comprising in said secondary circuit the complete kinematic chain for the transmission of movement to the mobile contact of the vacuum interrupter.
  • the drive means is part of the main circuit, since in this case the drive means is a cam disc that is electrically and mechanically connected to the moving contact of the main circuit.
  • the actuation means is arranged at the free end of the mobile contact of the main circuit, connected to it by means of an articulated area equipped with a stop that prevents the movement of the actuation means in the opening direction of the disconnector (in the same way as in the case of ES2387862T3) and a spring that returns it to the stop position when the disconnector is closed.
  • the mobile contact of the vacuum interrupter includes, at its free end, an electrically conductive pin element that is intercepted by the cam disc in the opening sequence of the main circuit.
  • the cam disc comprises a guide slot in which the pin element is inserted which, as the main circuit follows its opening sequence, is forced to travel through said guide slot, transmitting said movement to the moving contact of the vacuum interrupter. .
  • the electric current circulates in shunt through the pin element and the cam disk.
  • the cam disc does not interfere with the pin element, so the vacuum interrupter is not subjected to any action and remains with its contacts closed.
  • the load cut-off switch or short-circuit currents object of the present invention is applicable in electrical power distribution facilities, such as electrical transformation centers, distribution centers, substations, etc., for the protection and maneuvering electrical circuits, and solves each and every one of the problems mentioned above, so that the switch of the invention comprises a kinematic chain or simplified movement transmission system to act on the mobile contact of the vacuum switch and cause its opening , avoids the problem related to a possible strike of the current between the mobile contact of the switch-disconnector and the secondary circuit in the closing sequence of the switch and allows the vacuum interrupter to close its contacts once the operating position has been obtained section of the switch of the invention, thus leaving the vacuum switch ready. ⁇ o for the next cutting maneuver.
  • the switch of the invention comprises a main circuit for circulating electric current and a secondary circuit for circulating electric current bypass.
  • the main circuit includes at least a first operating means, such as a switch-disconnector equipped with a fixed contact and a mobile contact, while the secondary circuit comprises at least a second operating means, such as a vacuum switch. comprising inside a fixed contact and a mobile contact.
  • the switch of the invention can adopt at least three operating positions, connection - disconnection - disconnection - grounding, so that the switch - disconnector can further comprise a grounding contact.
  • the vacuum interrupter located in the secondary circuit performs the breaking operation and the switch-disconnector of the main circuit performs the connection, sectioning and grounding operations, thus compactly arranging a load breaking switch or of short-circuit currents capable of executing up to four operating positions.
  • the vacuum switch is actuated by the displacement of the mobile contact of the switch-disconnector through a control mechanism.
  • the control mechanism comprises an electrically conductive rocking means, configured as at least one piece of conductive material, that is, this piece is electrically conductive on its entire external surface, and is connected to at least one lever through at least one lever.
  • least a first articulation element such as a return spring.
  • Said tilting means is mounted on a first free end of the lever and can tilt around the first articulation element in the opening sequence and/or in the closing sequence of the load-break switch or short-circuit current switch, that is to say , both in the opening stroke of the mobile contact of the switch-disconnector and in the closing stroke of the mobile contact of the switch-disconnector, only in the opening stroke of the mobile contact of the switch-disconnector or only in the closing stroke of the contact switch mobile - disconnector.
  • the rocking means does not interfere electrically or mechanically with the vacuum switch, and therefore also with the secondary circuit. That is to say, during the closing sequence there is a physical separation between the tilting means and the secondary circuit, there being no electrical connection between them, thus avoiding the problem posed by the cited documents of the state of the art, that relating to a possible sparking of the current between the mobile contact of the switch-disconnector and the secondary circuit, which would make the vacuum interrupter unable to withstand with its closed contacts and due to the separation of the vacuum interrupter contacts an arc would be formed between these separate contacts, which can cause a sudden increase in temperature and pressure that can lead to explosions that cause material damage, the formation of toxic gases, even personal injury.
  • this problem related to starting the current is solved, since the mobile contact of the switch-disconnector can be at least partially insulated and because the rocking means can rotate around the first articulation element or a
  • the first stop means can rotate around a third articulation element in a second direction (B) contrary to a first direction (A) until it is released from the moving contact of the switch-disconnector by sliding, without this having any electrical effect. neither mechanical on the secondary circuit or on the vacuum interrupter.
  • the first stop means of the control mechanism can be made of electrically conductive material where the tilting means can not be found abutting in its rest position, so that the tilting means is not in electrical connection with the main circuit or with the secondary circuit, while in the opening sequence of the switch of the invention the rocker means tilts around the first articulation element in the first direction (A) due to the thrust of the mobile contact of the switch-disconnector until the rocker means stops with the first stop means, such that said rocking means, the first stop means and the lever electrically and mechanically connect the mobile contact of the vacuum interrupter with the mobile contact of the switch-disconnector, the first stop means and the moving contact of the vacuum interrupter electrically connected by at least one electrically conductive medium.
  • the rocking means tilts around the first articulation element in the second direction (B), opposite to direction (A), without electrically or mechanically connecting the mobile contact of the vacuum switch with the mobile contact of the switch - disconnector.
  • Both the lever and the first stop means can be made of insulating material or are insulated by another insulating material, so that in this case the rocking means is electrically connected to the mobile contact of the vacuum interrupter by means of at least one conductive means. electric. Therefore, in the opening sequence of the switch of the invention as soon as the mobile contact of the switch-disconnector intercepts the rocking means, the electrical current begins to circulate through the secondary circuit at the same time that it circulates through the main circuit.
  • the first stop means can tilt around a third articulation element in the second direction (B) opposite to direction (A), without electrically or mechanically connecting the moving contact of the switch. vacuum with the mobile contact of the switch - disconnector.
  • the first stop means can also comprise a protuberance where the mobile contact of the switch-disconnector contacts in the closing sequence of the switch of the invention.
  • the tilting means in its rest position can be abutting against the first stop means that comprises the control mechanism and that can be mounted on the lever, said tilting means being in electrical and mechanical connection with the secondary circuit.
  • the mobile contact of this intercepts in the course of its opening stroke with the rocking means, moment in which the electric current begins to circulate through the secondary circuit at the same time that it circulates by the main circuit, since the mobile contact of the vacuum interrupter and the mobile contact of the switch-disconnector are electrically and mechanically connected through the rocking means and the lever respectively.
  • the rocking means is electrically connected to the movable contact of the vacuum interrupter by at least one electrically conductive means.
  • first stop means is electrically conductive
  • said first stop means is electrically connected to the movable contact of the vacuum interrupter by means of an electrically conductive means.
  • the rocking means tilts around the first articulation element in the second direction (B), opposite to direction (A), without electrically or mechanically connecting the mobile contact of the vacuum switch with the mobile contact of the switch - disconnector.
  • the mobile contact of the switch-disconnector continues to push the rocking means and the latter pushes the lever. Since the lever is also connected to a fixed part of the control mechanism by at least a second locking element articulation, such as a return spring that allows the tilting of the lever, and with the mobile contact of the vacuum interrupter through a mechanical connection point, the displacement of the lever due to the thrust of the rocking means causes the movement of the mobile contact of the vacuum interrupter, thus beginning the cutting manoeuvre.
  • a second locking element articulation such as a return spring that allows the tilting of the lever, and with the mobile contact of the vacuum interrupter through a mechanical connection point
  • the mobile contact of the switch-disconnector continues to push the rocker and the latter on the lever, until the mobile contact of the switch-disconnector releases the rocker when the vacuum interrupter reaches its cut-off position, thus interrupting the electric current and extinguishing the electrical arc.
  • the rocking means may comprise a protuberance, so that both in the opening sequence and in the closing sequence of the switch of the invention, the mobile contact of the switch-disconnector contacts said protuberance and pushes the medium. tilting.
  • the rocking means is separated from the mobile contact of the switch-disconnector, and allows the vacuum interrupter to close its contacts, but without the passage of electric current since the secondary circuit remains open , leaving the vacuum interrupter ready for the next breaking maneuver and the entire branch of the secondary circuit or derivation at the same electrical potential while the disconnector remains open.
  • the sectioning maneuver position has been obtained. From this point, the mobile contact of the switch-disconnector would follow its opening sequence and when said mobile contact intercepted the grounding contact, the grounding position would be obtained.
  • the rocking means instead of being a single piece, can comprise two pieces, a first piece that can come to a stop with the first stop means in an opening sequence of the switch of the invention and a second piece that can pivot around the first articulation element in the closing sequence of the switch of the invention.
  • the first part of the tilting means can rest on a second stop means in its rest position, said first part and said second being able to be joined. stop means by means of at least one flexible element, such as a return spring.
  • the switch-disconnector comprises a drive shaft that acts on its mobile contact to execute both the opening sequence and the closing sequence of the switch of the invention.
  • the switch of the invention can be part of electrical equipment and be integrated into said electrical equipment, such as a switchgear, which can comprise an enclosure in which the switch of the invention is integrated, immersed in a dielectric medium, at least one electrical connection element and one mechanical connection element accessible from the outside and inside of the enclosure, at least one cable compartment, one gas expansion compartment, as well as other electrical or electronic devices for measurement, control and protection , etc.
  • a switchgear which can comprise an enclosure in which the switch of the invention is integrated, immersed in a dielectric medium, at least one electrical connection element and one mechanical connection element accessible from the outside and inside of the enclosure, at least one cable compartment, one gas expansion compartment, as well as other electrical or electronic devices for measurement, control and protection , etc.
  • Figure 1 Shows a perspective view of the casing that incorporates the switch of the invention inside, immersed in a dielectric medium, where at least one electrical connection element and one mechanical connection element accessible from the outside have been represented. of the envelope.
  • Figure 2. Shows an elevation view of the switch of the invention that incorporates at least part of its elements inside a casing.
  • Figure 3. Shows an elevation view of the switch of the invention in its connection maneuver position (the main electrical circuit is closed) according to a first embodiment of the invention, where the electric current circulates only through the main circuit and where the housing of the load break switch or short-circuit currents has not been represented, nor part of the lever of the control mechanism for a better visualization .
  • Figure 4 Shows an elevation view of the switch of the invention in its connection maneuver position (the main electrical circuit is closed) according to a second embodiment of the invention, where the electrical current circulates only through the main circuit and where The housing of the load break switch or short-circuit currents has not been shown, nor part of the lever of the control mechanism for a better visualization.
  • Figure 5. Shows an elevation view of the switch of the invention in its connection maneuver position (the main electric circuit is closed) according to a third embodiment of the invention, where the electric current circulates only through the main circuit and where the casing of the load break switch or short circuit currents or part of the control mechanism lever has not been represented for a better visualization.
  • Figure 6. Shows an elevation view of the switch of the invention once the opening sequence has begun according to the embodiment of figure 3, where the electric current flows through both the main circuit and the secondary circuit.
  • FIG. 7 Shows an elevation view of the switch of the invention once the opening sequence has begun according to the embodiment of figure 4, where the electric current flows through both the main circuit and the secondary circuit.
  • Figure 8.- Shows an elevation view of the switch of the invention once the opening sequence has begun according to the embodiment of figure 5, where the electric current flows through both the main circuit and the secondary circuit.
  • Figure 9. Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 3, where the electric current only circulates through the secondary shunt circuit.
  • Figure 10. Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 4, where the electric current only circulates through the secondary shunt circuit.
  • FIG. 11 Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 5, where the electric current only circulates through the secondary branch circuit.
  • Figure 12.- Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 3, in its cutting maneuver position.
  • FIG. 13 Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 4, in its cut-off position.
  • Figure 14.- Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 5, in its cutting position.
  • Figure 15.- Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 3, in its sectioning maneuver position.
  • Figure 16.- Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 4, in its isolating maneuver position.
  • Figure 17. Shows an elevation view of the switch of the invention following the opening sequence according to the embodiment of figure 5, in its sectioning maneuver position.
  • Figure 18. Shows an elevation view of the switch of the invention according to the embodiment of figure 3, in its grounding position, where the housing of the load break switch or short-circuit currents has not been represented nor part of the control mechanism lever for better visualization
  • FIG. 19 Shows an elevation view of the switch of the invention according to the embodiment of figure 4, in its grounding position.
  • FIG. 20 Shows an elevation view of the switch of the invention according to the embodiment of figure 5, in its grounding position.
  • FIGS 21 a - 21 b.- Show individual details of the control mechanism that actuates the vacuum switch in the opening sequence of the switch of the invention according to the embodiment of figure 3.
  • FIGS 22a - 22b.- Show individual details of the control mechanism that activates the vacuum switch in the opening sequence of the switch of the invention according to the embodiment of figure 4, where the mobile contact of the vacuum switch and the mobile contact of the switch-disconnector are electrically connected through the rocker means and the first stop means, said first stop means being electrically connected to the moving contact of the vacuum interrupter through an electrically conductive means.
  • Figure 23a - 23b.- show details of the control mechanism that activates the vacuum interrupter in the opening sequence of the switch of the invention according to the embodiment of figure 4, where the mobile contact of the vacuum interrupter and the mobile contact of the switch-disconnector are electrically connected only via the rocker means, the rocker means being electrically connected to the moving contact of the vacuum interrupter via an electrically conductive medium.
  • Figures 24a - 24b.- Show individual details of the control mechanism that actuates the vacuum switch in the opening sequence of the switch of the invention according to the embodiment of figure 5.
  • FIG. 25 Shows an elevation view of the switch of the invention in the closing sequence according to the embodiment of figure 3.
  • FIG. 26 Shows an elevation view of the switch of the invention in the closing sequence according to the embodiment of figure 4.
  • FIG. 27 Shows an elevation view of the switch of the invention in the closing sequence according to the embodiment of figure 5.
  • Figure 28 Shows a perspective view of the electrical equipment that incorporates the switch of the present invention inside.
  • Figure 1 shows an enclosure (28) inside which the load-cutting switch or short-circuit current switch (1) object of the present invention is installed, and this enclosure (28) can be watertight, and insulated at any time.
  • dielectric medium such as air, dry air, N2, O2 , CO2, or gas mixtures such as fluoroketones with vector gases such as CO2, N2, O2, air or mixtures thereof, or gas mixtures such as, for example, hydrofluoroolefins with carrier gases such as N2, O2, dry air, helium, CO2 or mixtures thereof, or sulfur hexafluoride, etc.
  • the casing (28) comprises at least one electrical connection element (29), such as a male or female type bushing, and at least one mechanical connection element (32) accessible both from inside the casing (28) and from the outside, so that the coupling of other elements with the casing (28) is facilitated, such as a maneuvering mechanism through the mechanical connection elements (32) or other electrical switchgear through the electrical connection elements (29). ).
  • the current or load cut-off switch of the invention (1) is installed inside said casing (28) and therefore isolated in the same dielectric medium that contains the casing (28).
  • the switch of the invention (1) comprises a main circuit (2) for circulating electric current and a secondary circuit (3) for circulating electric current bypass.
  • the main circuit (2) comprises at least one first operating means, such as a switch-disconnector (4), equipped with a fixed contact (5) and a mobile contact (6), while the secondary circuit (3) It comprises at least one second operating means, such as a vacuum switch (7), which includes a fixed contact (8) and a mobile contact (9) inside.
  • the switch of the invention (1) can adopt at least three operating positions, connection - disconnection - disconnection - grounding, so that the switch-disconnector (4) can also include a grounding contact (19).
  • the vacuum switch (7) arranged in the secondary circuit (3) performs the cutting operation, as shown in figures 12-14, while the switch-disconnector (4) of the main circuit ( 2) performs the connection, sectioning and grounding operations, as shown in figures 3-5, 15-17 and 18-20 respectively.
  • the mobile contact (6) of the switch-disconnector (4) intercepts in the course of its opening stroke with a control mechanism (10), specifically with at least one rocking means (11) electrically conductive on its entire external contact surface that comprises said mechanism control (10).
  • This tilting means (11) of electrically conductive material can comprise at least one first protuberance (20), as shown in figures 3-27, in this case said first protuberance (20) being the one that is intercepted by the contact mobile (6) of the switch - disconnector (4).
  • the tilting means (11) is mounted at one end of at least one lever
  • the mobile contact (6) of the switch-disconnector (4) intercepts the rocking means (11) or its projection (20), it begins to push said rocking means ( 11) making it tilt around the first articulation element (13) in a first direction (A), without any current flowing through the secondary circuit (3), still only current flows through the main circuit (2) .
  • the mobile contact (6) of the switch-disconnector (4) continues to push the rocking means (11), making it tilt in the first direction A, until the rocking means (11) comes to a stop with a first stop means (14) that includes the control mechanism (10) and that can be mounted on the lever (12), as can be seen in figure 6.
  • the tilting means (11) comes to a stop with the first means of stop (14) the current begins to circulate through the secondary circuit (3) at the same time as through the main circuit (2), since up to this moment the tilting means (11) in its rest position is not making a stop against the first stop means (14).
  • the mobile contact (9) of the vacuum interrupter (7) and the mobile contact (6) of the switch-disconnector (4) are electrically connected through the rocker means (11) and the first stop means (14 ), said first stop means (14) being able to be electrically connected to the mobile contact (9) of the vacuum interrupter (7) through at least one electrical conductive means (18), as shown in figures 21a -21b.
  • the mobile contact (9) of the vacuum interrupter (7) and the mobile contact (6) of the switch-disconnector (4) are mechanically connected through the rocker means (11), the first stop means (14) and of the lever (12).
  • the first stop means (14) can be made of electrically conductive material, while the lever (12) can be made of insulating material or it can be insulated by another insulating material.
  • the tilting means (11) can comprise two pieces (21, 22), as shown in figures 21a-21b, a first piece (21) that can abut the first abutment means (14 ) in an opening sequence of the switch of the invention (1) and a second part (22) that can pivot around the first articulation element (13) in the closing sequence of the switch of the invention (1).
  • the first part (21) of the tilting means (11) can rest on a second stop means (25) in its rest position, being able to said first piece (21) and said second stop means (25) being joined by at least one flexible element (26), such as a return spring.
  • the mobile contact (9) of the vacuum interrupter (7) and the mobile contact (6) of the switch-disconnector (4) are electrically connected through the rocker (11) and the first stop means (14), said first stop means (14) being able to be electrically connected to the mobile contact (9) of the vacuum interrupter (7) through at least one electrical conductive means (18), such as is shown in Figures 22a-22b.
  • the first stop means (14) is made of electrically conductive material, while the lever (12) can be made of insulating material or it can be insulated by another insulating material.
  • the mobile contact (9) of the vacuum interrupter (7) and the mobile contact (6) of the switch-disconnector (4) remain electrically connected only through the rocking means (11), being able to the rocker means (11) being electrically connected to the mobile contact (9) of the vacuum interrupter (7) through at least one electrical conductive means (18), as shown in figures 23a-23b.
  • the mobile contact (9) of the vacuum interrupter (7) and the mobile contact (6) of the switch-disconnector (4) are mechanically connected through the rocking means (11), the first stop means (14 ) and the lever (12), as shown in figures 22a-22b and 23a-23b.
  • the mobile contact (6) of the switch-disconnector (4) separates from the fixed contact (5) and therefore from the main circuit (2) without producing any electric arc in the circuit and the current only now circulates through the secondary circuit (3), as shown in figures 9-11.
  • the rocking means (11) pushes the first stop means (14) and this in turn pushes the lever (12).
  • the lever (12) is connected to a fixed part (15) of the control mechanism (10) by means of a second articulation element (16), as shown in figures 2-27, around which the lever (12) tilts due to said push.
  • said lever (12) is also mechanically connected to the mobile contact (9) of the vacuum interrupter (7) by means of at least one mechanical connection point (17), the tilting of the lever (12) causes the displacement of the mobile contact (9), thus beginning the separation between the contacts (8) and (9) of the vacuum interrupter (7).
  • the mobile contact (6) of the switch-disconnector (4) continues to push the rocker (11) until the vacuum interrupter (7) reaches its cut-off position, represented in figures 12-14, at which time the mobile contact (6) of the switch-disconnector (4) releases the rocker (11).
  • the mobile contact (6) of the switch-disconnector (4) can follow its opening sequence and when said mobile contact (6) intercepts the grounding contact (19) the grounding position is obtained. ground, as shown in Figures 18-20.
  • the rocker means (11) does not interfere electrically or mechanically with the vacuum switch (7), and therefore neither with the secondary circuit (3), due to the fact that the moving contact (6) of the switch-disconnector (4) can be at least partially insulated by an insulating means such as insulating paint, an insulating cap, etc., and because the rocking means (11) can rotate in around the first articulation element (13) in a second direction (B) opposite to direction (A) until it is released from the moving contact (6) of the switch-disconnector (4) by sliding, without this having any electrical or mechanical connection on the secondary circuit (3) or on the vacuum interrupter (7), that is, during the closing sequence there is a physical separation between the rocker (11) and the secondary circuit (3), there being no mechanical connection nor electric between both s.
  • an insulating means such as insulating paint, an insulating cap, etc.
  • the mobile contact (6) of the switch-disconnector (4) contacts the first protuberance (20) and pushes to the tilting means (11) making it tilt around the first articulation element (13) in the second direction (B) contrary to the direction (A) until it is released by sliding.
  • the first protuberance (20) is located in the second part (22) of the tilting means (11) and said second piece (22) is the one that tilts around the first articulation element (13) in the second direction (B) until it is released by sliding.
  • the switch-disconnector (4) comprises an actuation shaft (23), as shown in figures 2-20 and 25-27, which acts on the mobile contact (6) to execute both the opening sequence and the closing sequence of the switch of the invention (1) due to the action of a maneuvering mechanism not shown in the figures and which can be coupled to the casing (28) through the mechanical connection element (32) shown in the figure one.
  • the switch of the invention (1) may comprise a casing (24), as shown in figure 2, where some of its elements are at least partially integrated, such as the mobile contact (6) of the switch-disconnector (4), the control mechanism (10), the earthing contact (19) of the switch-disconnector (4), etc.
  • the switch of the invention (1) can comprise a three-phase configuration and therefore comprise part of its elements corresponding to the three phases, at least partially, incorporated inside the casing (24).
  • an electrical equipment (27) has been represented, such as a cubicle, which comprises at least one switch of the invention (1) in an enclosure (28) immersed in a dielectric medium, at least one element electrical connection (29) and a mechanical connection element (32) accessible from the outside and inside of the enclosure (28), at least one cable compartment (30), a gas expansion compartment (31), as well as other electrical or electronic devices (33) for measurement, control and protection, etc.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

L'invention concerne un interrupteur de coupe en charge ou de courants de court-circuit (1) qui peut adopter au moins trois positions de manœuvre - connexion, coupe, sectionnement -, ainsi qu'une quatrième position de mise à la terre, comprenant dans ce dernier cas un contact de mise à la terre, formant ainsi de manière compacte un interrupteur de coupe en charge ou de courants de court-circuit capable d'exécuter jusqu'à quatre positions de manœuvre (connexion, coupe, sectionnement et mise à la terre) et qui comporte essentiellement un circuit principal (2) de circulation du courant électrique et un circuit secondaire (3) de circulation du courant électrique en dérivation, le circuit principal (2) comprenant un interrupteur-sectionneur (4) doté d'un contact fixe (5) et d'un contact mobile (6), le circuit secondaire (3) comprenant un interrupteur à vide (7), lequel comprend à son tour un contact fixe (8) et un contact mobile (9), l'interrupteur à vide (7) étant actionné par le déplacement du contact mobile (6) de l'interrupteur-sectionneur (4) par l'intermédiaire d'un mécanisme de commande (10).
PCT/ES2022/070437 2021-07-13 2022-07-07 Interrupteur de coupe en charge ou de courants de court-circuit et équipement électrique comprenant ledit interrupteur WO2023285716A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22753720.6A EP4372778A1 (fr) 2021-07-13 2022-07-07 Interrupteur de coupe en charge ou de courants de court-circuit et équipement électrique comprenant ledit interrupteur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES202131460U ES1275577Y (es) 2021-07-13 2021-07-13 Interruptor de corte en carga o de corrientes de cortocircuito y equipo eléctrico que incorpora dicho interruptor
ESU202131460 2021-07-13

Publications (1)

Publication Number Publication Date
WO2023285716A1 true WO2023285716A1 (fr) 2023-01-19

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Application Number Title Priority Date Filing Date
PCT/ES2022/070437 WO2023285716A1 (fr) 2021-07-13 2022-07-07 Interrupteur de coupe en charge ou de courants de court-circuit et équipement électrique comprenant ledit interrupteur

Country Status (3)

Country Link
EP (1) EP4372778A1 (fr)
ES (1) ES1275577Y (fr)
WO (1) WO2023285716A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3130446A1 (fr) * 2021-12-13 2023-06-16 Schneider Electric Industries Sas Appareil de coupure de courant sur une ligne électrique comprenant une ampoule à vide

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004006476B4 (de) 2004-02-04 2006-02-09 Siemens Ag Lasttrennschalter
WO2006074975A1 (fr) 2005-01-13 2006-07-20 Siemens Aktiengesellschaft Commutateur a trois positions et came
US20100102035A1 (en) * 2008-10-29 2010-04-29 Areva T&D Sas Power line current interrupter having a vacuum switch chamber
US20120048692A1 (en) * 2009-05-26 2012-03-01 Schneider Electric Energy France latching and locking device inside a switch or a circuit breaker
ES2525080T3 (es) 2011-01-25 2014-12-17 Schneider Electric Industries Sas Dispositivo de corte de media tensión que comprende una ampolla de vacío
EP2927926A1 (fr) * 2014-04-03 2015-10-07 Schneider Electric Industries SAS Appareillage de commutation de moyenne tension comprenant deux commutateurs par phase

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004006476B4 (de) 2004-02-04 2006-02-09 Siemens Ag Lasttrennschalter
WO2006074975A1 (fr) 2005-01-13 2006-07-20 Siemens Aktiengesellschaft Commutateur a trois positions et came
US20100102035A1 (en) * 2008-10-29 2010-04-29 Areva T&D Sas Power line current interrupter having a vacuum switch chamber
ES2387862T3 (es) 2008-10-29 2012-10-03 Schneider Electric Energy France Interruptor de corriente en una línea eléctrica que comprende una ampolla de vacío
US20120048692A1 (en) * 2009-05-26 2012-03-01 Schneider Electric Energy France latching and locking device inside a switch or a circuit breaker
ES2526220T3 (es) 2009-05-26 2015-01-08 Schneider Electric Energy France Dispositivo de enganche y de bloqueo interno en un interruptor o en un disyuntor
ES2525080T3 (es) 2011-01-25 2014-12-17 Schneider Electric Industries Sas Dispositivo de corte de media tensión que comprende una ampolla de vacío
EP2927926A1 (fr) * 2014-04-03 2015-10-07 Schneider Electric Industries SAS Appareillage de commutation de moyenne tension comprenant deux commutateurs par phase

Also Published As

Publication number Publication date
ES1275577U (es) 2021-07-30
EP4372778A1 (fr) 2024-05-22
ES1275577Y (es) 2021-10-26

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