EP4372778A1 - Lasttrenn- oder kurzschlussstromschalter und elektrische ausrüstung mit diesem schalter - Google Patents

Lasttrenn- oder kurzschlussstromschalter und elektrische ausrüstung mit diesem schalter Download PDF

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Publication number
EP4372778A1
EP4372778A1 EP22753720.6A EP22753720A EP4372778A1 EP 4372778 A1 EP4372778 A1 EP 4372778A1 EP 22753720 A EP22753720 A EP 22753720A EP 4372778 A1 EP4372778 A1 EP 4372778A1
Authority
EP
European Patent Office
Prior art keywords
switch
short
load break
moving contact
circuit currents
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.)
Pending
Application number
EP22753720.6A
Other languages
English (en)
French (fr)
Inventor
Javier Larrieta Zubia
Severo Aranaga Lopez
Sergio BARRIO RODRIGUEZ
Jesús IZCARA ZURRO
Asier Bilbao Lezeta
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.)
Ormazabal Corporate Technology AIE
Original Assignee
Ormazabal Corporate Technology AIE
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 AIE filed Critical Ormazabal Corporate Technology AIE
Publication of EP4372778A1 publication Critical patent/EP4372778A1/de
Pending legal-status Critical Current

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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 relates to a load break or short-circuit currents switch, for application in electrical power distribution networks, comprising a main circuit for circulating electrical current and a secondary circuit for circulating shunt electric current.
  • the main circuit comprises a switch - disconnector with a fixed contact and a moving contact, while the secondary circuit comprises a vacuum switch that is actuated by the moving contact of the switch - disconnector.
  • the load break or short-circuit currents switch of the invention can adopt at least three operating positions, making - breaking - disconnecting, as well as a fourth grounding position, in the latter case comprising a grounding contact, thus having a compact load break or short-circuit currents switch capable of executing up to four operating positions (making, breaking, disconnecting and grounding).
  • Another object of the invention is an electrical equipment, such as a cell, which incorporates said load break or short-circuit currents switch in an insulated housing in a dielectric medium.
  • the electrical switchgear used in electric power distribution networks is installed in enclosures that are usually metallic, called cells.
  • Said switchgear comprises operating means that perform the functions of breaking - disconnecting - grounding of the installation.
  • operating means such as disconnectors that comprise two contacts that can be joined to allow the current to pass or leave a physical separation determined by the safety standard or the manufacturer to prevent the passage of current, and which also comprise a third contact for grounding the electrical circuit.
  • disconnectors are sometimes not capable of performing the functions of the switch, that is, breaking 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 of which a pair of electrical contacts is housed, a fixed one and the other a moving one that moves by the actuation of an operating mechanism, to perform the breaking - making functions of the corresponding electrical circuit. But these vacuum switches are not used for current breaking functions when the circuit is on load due to their high cost.
  • the moving contact of the main circuit disconnector in its opening sequence, intercepts / interacts with an actuating means arranged in the branch of the secondary circuit and which is associated with the vacuum switch by means of a kinematic chain or movement transmission system to act on the moving contact of said vacuum switch and cause its opening.
  • the actuating means is arranged at the free end of the branch of the secondary circuit, connected to it by means of an articulated area provided with a stop that prevents the movement of the actuating means in the opening direction of the disconnector and a spring that allows the movement of the actuating means in the closing direction of the disconnector, and that once the actuating means of the moving contact of the disconnector is released, said spring makes the actuating means return to the stop position in the disconnector closing.
  • the actuating means comprises a first face covered by a conductor directed towards the disconnector and a second face opposite the first one and covered by an insulator.
  • the disconnector In the closing sequence of the disconnector, its moving contact touches the actuating means on its face covered by an insulator and therefore there should be no current flow through the branch of the secondary circuit, that is, the branch of the secondary circuit must be kept open since the vacuum switch includes its closed contacts and since it is not sized based on the restrictive electrical and dielectric performance of the permanent regime, such as the making capacity against short-circuit, the vacuum switch does not withstand the passage of a current of such magnitude with its contacts closed.
  • ES2526220T3 has a means for actuating the moving contact of the vacuum switch in the branch of the secondary circuit, with the difference that in this solution the moving contact of the vacuum switch remains locked in its open position until the main circuit disconnector executes the closing sequence.
  • the purpose of this blocking is to protect against a possible rapid re-engagement of the secondary circuit.
  • this blocking means that the vacuum switch is not ready for the next breaking operation and that the entire branch of the secondary circuit or shunt is not at the same electrical potential while the disconnector remains open.
  • control mechanism comprises a rotary rocker arm as a means of actuating the moving contact of the vacuum switch, which connects a rod that is associated with the moving contact of the vacuum switch with the moving contact of the main circuit.
  • the means for actuating the moving contact of the vacuum switch is part of the branch of the secondary circuit, being the electrical conduction through the branch of the secondary circuit provided by the rocker arm or possibly by a conductive switching lug, electrically connected to the moving contact of the vacuum switch and extending to a free end superimposed approximately on a free end of the rocker arm that intercepts the moving contact of the main circuit, wherein this moving contact of the main circuit frictions over the free end of the switching lug.
  • DE102004006476B4 also defines a means for actuating the moving contact of the vacuum switch 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 moving contact of the vacuum switch.
  • the actuating means is part of the main circuit, since in this case the actuating means is a cam disc that is electrically and mechanically connected to the moving contact of the main circuit.
  • the actuating means is arranged at the free end of the moving contact of the main circuit, connected to it by means of an articulated area provided with a stop that prevents the movement of the actuating 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 closing the disconnector.
  • the moving contact of the vacuum switch comprises 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 into which the pin element is inserted that, as the main circuit follows its opening sequence, is forced to go through said guide slot, transmitting said movement to the moving contact of the vacuum switch.
  • the electrical current shunts through the pin element and the cam disc.
  • the cam disc does not interfere with the pin element, so the vacuum switch is not subjected to any action and remains with its contacts closed.
  • the load break or short-circuit currents switch object of the present invention is applicable in electrical power distribution facilities such as, for example, electrical transformation centers, distribution centers, substations, etc., for the protection and operation of 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 moving contact of the vacuum switch and cause its opening, it avoids the problem related to a possible current spark-over between the moving contact of the switch - disconnector and the secondary circuit in the switch closing sequence and allows the vacuum switch to close its contacts once the disconnecting operating position has been obtained by the switch of the invention, thus leaving the vacuum switch ready for the next breaking operation.
  • the switch of the invention comprises a main circuit for the circulation of the electric current and a secondary circuit for the circulation of the shunt electric current.
  • the main circuit comprises at least one first operating means, such as a switch - disconnector equipped with a fixed contact and a moving contact, while the secondary circuit comprises at least one second operating means, such as a vacuum switch comprising inside a fixed contact and a moving contact.
  • the switch of the invention can adopt at least three operating positions, making - breaking - disconnecting - grounding, so that the switch - disconnector can also comprise a grounding contact.
  • the vacuum switch arranged in the secondary circuit performs the breaking operation and the switch - disconnector of the main circuit performs the making, disconnecting and grounding operations, thus compactly providing a load break or short-circuit currents switch capable of executing up to four operating positions.
  • the vacuum switch is actuated by the movement of the moving contact of the switch - disconnector through a control mechanism.
  • the control mechanism comprises an electrically conductive tilting means, configured as at least one part made of conductive material, that is, this part conducts electricity on its entire external surface, and is attached to at least one lever through at least one 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 or short-circuit currents switch, that is, both in the opening run of the moving contact of the switch - disconnector and in the closing run of the moving contact of the switch - disconnector, only in the opening run of the moving contact of the switch - disconnector or only in the closing run of the moving contact of the switch - disconnector.
  • the tilting means does not interfere electrically or mechanically with the vacuum switch, and therefore neither with the secondary circuit.
  • this problem related to current spark-over is solved, since the moving contact of the switch - disconnector can be at least partially insulated and because the tilting means can rotate around the first articulation element or a first stop means can rotate around a third articulation element in a second direction (B) opposite to a first direction (A) until it is released from the moving contact of the switch - disconnector by sliding, without this having any electrical or mechanical effect on the secondary circuit or on the vacuum switch.
  • the first stop means of the control mechanism can be made of electrically conductive material wherein the tilting means may not be 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 tilting means tilts around the first articulation element in the first direction (A) due to the thrust of the moving contact of the switch - disconnector until the tilting means abuts against the first stop means, such that said tilting means, the first stop means and the lever electrically and mechanically connect the moving contact of the vacuum switch with the moving contact of the switch - disconnector, with the first stop means and the moving contact of the vacuum switch being electrically connected by at least one electrically conductive means.
  • the tilting means rotates around the first articulation element in the second direction (B), opposite to direction (A), without electrically or mechanically connecting the moving contact of the vacuum switch with the moving 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 tilting means is electrically connected to the moving contact of the vacuum switch by at least an electrically conductive medium. Therefore, in the opening sequence of the switch of the invention, as soon as the moving contact of the switch - disconnector intercepts the tilting means, the electrical current begins to circulate through the secondary circuit at the same time as 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 vacuum switch with the moving contact of the switch - disconnector.
  • the first stop means can also comprise a protrusion where the moving contact of the switch - disconnector makes contact 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 comprising the control mechanism and which may be mounted on the lever, said tilting means being in electrical and mechanical connection with the secondary circuit.
  • the tilting means in the opening sequence of the switch - disconnector, its moving contact intercepts the tilting means during its opening run, at which moment the electric current begins to circulate through the secondary circuit at the same time that it circulates through the main circuit, since the moving contact of the vacuum switch and the moving contact of the switch - disconnector are electrically and mechanically connected through the tilting means and the lever, respectively.
  • the tilting means is electrically connected to the moving contact of the vacuum switch by at least one electrically conductive means.
  • the first stop means is electrically conductive
  • said first stop means is electrically connected to the moving contact of the vacuum switch by means of an electrically conductive means.
  • the tilting means tilts around the first articulation element in the second direction (B), opposite to direction (A), without electrically or mechanically connecting the moving contact of the vacuum switch with the moving contact of the switch - disconnector.
  • the moving contact of the switch - disconnector continues to push the tilting means and the latter pushes the lever, until the moving contact of the switch - disconnector releases the tilting means when the vacuum switch reaches its breaking position, thus interrupting the electrical current and extinguishing the electric arc.
  • the tilting means may comprise a protrusion
  • the tilting means separates from the moving contact of the switch - disconnector, and allows the vacuum switch to close its contacts, but without the passage of electric current since the secondary circuit remains open, leaving the vacuum switch ready for the next breaking operation and the entire branch of the secondary or shunt circuit at the same electrical potential while the switch - disconnector remains open.
  • the disconnecting operating position has been obtained. From this point, the moving contact of the switch - disconnector would follow its opening sequence and by intercepting said moving contact the grounding contact would obtain the grounding position.
  • the tilting means instead of being a single part, may comprise two parts, a first part that can abut against the first stop means in an opening sequence of the switch of the invention and a second part which can tilt 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 stop means being able to be connected by at least one flexible element, such as a return spring.
  • the switch - disconnector comprises an actuating shaft that acts on its moving 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 an electrical equipment and be integrated into said electrical equipment, such as a cell, which may 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 cell which may 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 an enclosure (28) inside which the load break or short-circuit currents switch (1) object of the present invention is installed, this enclosure (28) being able to be watertight, and insulated in any dielectric medium such as air, dry air, N 2 , O 2 , CO 2 , or gas mixtures such as, for example, fluoroketones with vector gases such as CO 2 , N 2 , O 2 , air or mixtures thereof, or gas mixtures such as, for example, hydrofluoroolefins with vector gases such as N 2 , O 2 , dry air, helium, CO 2 or mixtures thereof, or sulfur hexafluoride, etc.
  • any dielectric medium such as air, dry air, N 2 , O 2 , CO 2 , or gas mixtures
  • fluoroketones with vector gases such as CO 2 , N 2 , O 2 , air or mixtures thereof
  • gas mixtures such as, for example, hydrofluoroolefins with vector gases such as N 2 ,
  • the enclosure (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 enclosure (28) as well as from its outside, so that the coupling of other elements with the enclosure (28) is facilitated, such as a operating mechanism by means of mechanical connection elements (32) or other electrical switchgear by means of electrical connection elements (29).
  • the load break or short-circuit currents switch (1) of the invention is installed inside said enclosure (28) and therefore isolated in the same dielectric medium that contains the enclosure (28).
  • the load break or short-circuit currents switch (1) of the invention comprises a main circuit (2) for the circulation of the electric current and a secondary circuit (3) for the circulation of the shunt electric current.
  • the main circuit (2) comprises at least a first operating means, such as a switch - disconnector (4), provided with a fixed contact (5) and a moving contact (6), while the secondary circuit (3) comprises at least one second operating means, such as a vacuum switch (7), which comprises inside a fixed contact (8) and a moving contact (9).
  • the load break or short-circuit currents switch (1) of the invention can adopt at least three operating positions, making - breaking - disconnecting - grounding, so that the switch - disconnector (4) can also comprise a grounding contact (19).
  • the vacuum switch (7) arranged in the secondary circuit (3) performs the breaking operation, as shown in figures 12-14 , while the switch - disconnector (4) of the main circuit (2) performs the making, disconnecting and grounding operations, as shown in figures 3-5 , 15-17 and 18-20 respectively.
  • the moving contact (6) of the switch - disconnector (4) intercepts, in the course of its opening run, a control mechanism (10), specifically with at least one tilting means (11) electrically conductive in its entire external contact surface that comprises said control mechanism (10).
  • This tilting means (11) made of electrically conductive material may comprise at least one first protrusion (20), as shown in figures 3-27 , in this case said first protrusion (20) being the one intercepted by the moving contact (6) of the switch - disconnector (4).
  • the tilting means (11) is mounted on one end of at least one lever (12) made of insulating material through at least one first articulation element (13), such as a return spring.
  • the moving contact (6) of the switch - disconnector (4) intersects with the tilting means (11) or with its first protrusion (20), it begins to push said tilting 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 current only flows through the main circuit (2).
  • the moving contact (6) of the switch - disconnector (4) continues to push the tilting means (11), causing it to tilt in the first direction A, until the tilting means (11) abuts against a first stop means (14) that comprises the control mechanism (10) and which can be mounted on the lever (12), as can be seen in figure 6 .
  • the moving contact (9) of the vacuum switch (7) and the moving contact (6) of the switch - disconnector (4) are electrically connected through the tilting means (11) and the first stop means (14), being able to be electrically connected said first stop means (14) with the moving contact (9) of the vacuum switch (7) through at least one electrical conductive means (18), as shown in figures 21a -21b .
  • the moving contact (9) of the vacuum switch (7) and the moving contact (6) of the switch - disconnector (4) are mechanically connected through the tilting 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 can be insulated by another insulating material.
  • the tilting means (11) can comprise two parts (21, 22), as shown in figures 21a-21b , a first part (21) that can abut against the first stop means (14) in an opening sequence of the load break or short-circuit currents switch (1) of the invention and a second part (22) that can tilt around the first articulation element (13) in the closing sequence of the load break or short-circuit currents switch (1) of the invention.
  • the first part (21) of the tilting means (11) can rest on a second stop means (25) in its rest position, said first part (21) and said second stop means (25) being able to be connected by means of at least one flexible element (26), such as a return spring.
  • the tilting means (11) in its rest position the tilting means (11) is in abutment with the first stop means (14), so that at the moment in which the moving contact (6) of the switch - disconnector (4) intercepts the tilting means (11) or its first protrusion (20) the current begins to circulate through the secondary circuit (3) as well as through the main circuit (2), as shown in figure 7 .
  • the moving contact (9) of the vacuum switch (7) and the moving contact (6) of the switch - disconnector (4) are electrically connected through the tilting means (11) and the first stop means (14), and said first stop means (14) being electrically connected with the moving contact (9) of the vacuum switch (7) through at least one electrically conductive means (18), as 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 can be insulated by another insulating material.
  • the moving contact (9) of the vacuum switch (7) and the moving contact (6) of the switch - disconnector (4) are electrically connected only through the tilting means (11), the tilting means (11) being electrically connected to the moving contact (9) of the vacuum switch (7) through at least one electrically conductive means (18), as shown in figures 23a-23b .
  • the moving contact (9) of the vacuum switch (7) and the moving contact (6) of the switch - disconnector (4) are mechanically connected through the tilting means (11), the first stop means (14) and the lever (12), as shown in figures 22a-22b and 23a-23b .
  • the tilting means (11) in its rest position the tilting means (11) is not abutting against the first stop means (14) and the tilting means (11) is electrically connected to the moving contact (9) of the vacuum switch (7) through at least one electrically conductive means (18).
  • the current begins to circulate through the secondary circuit (3) at the same time than by the main circuit (2), as shown in figure 8 .
  • the moving contact (9) of the vacuum switch (7) and the moving contact (6) of the switch - disconnector (4) are electrically connected only through the tilting means (11), as shown in figures 24a-24b .
  • the moving contact (9) of the vacuum switch (7) and the moving contact (6) of the switch - disconnector (4) are mechanically connected through the tilting means (11) and the lever (12).
  • the moving contact (6) of the switch - disconnector (4) continues to push the tilting means (11), causing it to tilt in the first direction (A), until the tilting means (11) abuts against a first stop means (14) that comprises the control mechanism (10) and which may be mounted on the lever (12).
  • the moving 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 circulates through the secondary circuit (3), as shown in figures 9-11 .
  • the tilting 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 thrust.
  • said lever (12) is also mechanically connected to the moving contact (9) of the vacuum switch (7) by means of at least one mechanical connection point (17), the tilting of the lever (12) causes the movement of the moving contact (9), thus beginning the separation between the contacts (8) and (9) of the vacuum switch (7).
  • the moving contact (6) of the switch - disconnector (4) continues to push the tilting means (11) until the vacuum switch (7) reaches its breaking operating position, shown in figures 12-14 , at which time the moving contact (6) of the switch - disconnector (4) releases the tilting means (11).
  • the moving contact (6) of the switch - disconnector (4) can continue its opening sequence and when said moving contact (6) intercepts the grounding contact (19), the grounding position is obtained, as shown in figures 18-20 .
  • the tilting means (11) does not interfere electrically or mechanically with the vacuum switch (7), and therefore neither with the secondary circuit (3), because the moving contact (6) of the switch - disconnector (4) can be at least partially insulated by an insulating medium such as an insulating paint, an insulating cap, etc., and because the tilting means (11) can rotate 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 effect on the secondary circuit (3) or on the vacuum switch (7), that is, during the closing sequence there is a physical separation between the tilting means (11) and the secondary circuit (3), there being no mechanical or electric connection between both of them.
  • an insulating medium such as an insulating paint, an insulating cap, etc.
  • the moving contact (6) of the switch - disconnector (4) contacts the first protrusion (20) and pushes the tilting means (11) making it tilt around the first articulation element (13) in the second direction (B) opposite to direction (A) until it is released by sliding.
  • the first protrusion (20) is located in the second part (22) of the tilting means (11) and said second part (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 actuating shaft (23), as shown in figures 2-20 and 25-27 , which acts on the moving contact (6) to execute both the opening sequence and the closing sequence of the load break or short-circuit currents switch (1) of the invention due to the action of an operating mechanism not represented in the figures and which can be coupled to the enclosure (28) through the mechanical connection element (32) represented in figure 1 .
  • the load break or short-circuit currents switch (1) of the invention may comprise a housing (24), as shown in figure 2 , wherein at least partially some of its elements are integrated, such as the moving contact (6) of the switch - disconnector (4), the control mechanism (10), the grounding contact (19) of the switch - disconnector (4), etc.
  • the load break or short-circuit currents switch (1) of the invention can comprise a three-phase configuration and therefore comprise part of its elements corresponding to the three phases, at least partially, incorporated inside the housing (24).
  • figure 28 shows electrical equipment (27), such as a cell, comprising at least one load break or short-circuit currents switch (1) of the invention in an enclosure (28) immersed in a dielectric medium, at least one electrical connection element (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.
  • electrical equipment such as a cell
  • electrical equipment such as a cell
  • the invention comprising at least one load break or short-circuit currents switch (1) of the invention in an enclosure (28) immersed in a dielectric medium, at least one electrical connection element (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)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)
EP22753720.6A 2021-07-13 2022-07-07 Lasttrenn- oder kurzschlussstromschalter und elektrische ausrüstung mit diesem schalter Pending EP4372778A1 (de)

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
PCT/ES2022/070437 WO2023285716A1 (es) 2021-07-13 2022-07-07 Interruptor de corte en carga o de corrientes de cortocircuito y equipo eléctrico que incorpora dicho interruptor

Publications (1)

Publication Number Publication Date
EP4372778A1 true EP4372778A1 (de) 2024-05-22

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EP22753720.6A Pending EP4372778A1 (de) 2021-07-13 2022-07-07 Lasttrenn- oder kurzschlussstromschalter und elektrische ausrüstung mit diesem schalter

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EP (1) EP4372778A1 (de)
ES (1) ES1275577Y (de)
MX (1) MX2024000727A (de)
WO (1) WO2023285716A1 (de)

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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

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DE102004006476B4 (de) 2004-02-04 2006-02-09 Siemens Ag Lasttrennschalter
DE102005002139B4 (de) 2005-01-13 2007-01-25 Siemens Ag Dreistellungsschalter mit Kurvenscheibe
FR2937786B1 (fr) * 2008-10-29 2010-12-24 Areva T & D Sa Interrupteur de courant sur une ligne electrique comprenant une ampoule a vide
FR2946180B1 (fr) * 2009-05-26 2012-12-14 Areva T & D Sa Dispositif d'accrochage et de verrouillage interne a un interrupteur ou a un disjoncteur.
FR2970809B1 (fr) 2011-01-25 2013-02-22 Schneider Electric Ind Sas Dispositif de coupure moyenne tension comprenant une ampoule a vide
IN2014KO00434A (de) * 2014-04-03 2015-10-09 Schneider Electric Ind Sas

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ES1275577Y (es) 2021-10-26
MX2024000727A (es) 2024-02-08
WO2023285716A1 (es) 2023-01-19
ES1275577U (es) 2021-07-30

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