EP4158672A1 - Induction-controlled switch having a vacuum bulb for reducing vibrations - Google Patents
Induction-controlled switch having a vacuum bulb for reducing vibrationsInfo
- Publication number
- EP4158672A1 EP4158672A1 EP21727886.0A EP21727886A EP4158672A1 EP 4158672 A1 EP4158672 A1 EP 4158672A1 EP 21727886 A EP21727886 A EP 21727886A EP 4158672 A1 EP4158672 A1 EP 4158672A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- actuator
- coil
- vacuum interrupter
- induction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000006698 induction Effects 0.000 title claims abstract description 26
- 238000004804 winding Methods 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims 2
- 239000012777 electrically insulating material Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 230000001133 acceleration Effects 0.000 description 9
- 230000005672 electromagnetic field Effects 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000003989 dielectric material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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
- H01H33/60—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
-
- 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
- H01H33/6662—Operating arrangements using bistable electromagnetic actuators, e.g. linear polarised electromagnetic actuators
-
- 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
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/285—Power arrangements internal to the switch for operating the driving mechanism using electro-dynamic repulsion
-
- 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
- H01H33/662—Housings or protective screens
-
- 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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
Definitions
- the invention relates to electrical protection devices such as contactors, circuit breakers, high voltage switches and quick disconnectors, and in particular vacuum interrupters used on high voltage networks for such switches.
- electrical protection devices such as contactors, circuit breakers, high voltage switches and quick disconnectors
- vacuum interrupters used on high voltage networks for such switches.
- the use of vacuum interrupters allows high voltages to be withheld while exhibiting low contact resistance in the closed state.
- Document JPH0992100 describes a high voltage continuous vacuum interrupter.
- Document JPH08222092 describes a vacuum interrupter actuated by electromagnetic repulsion.
- a vacuum interrupter generally has a fixed electrode and a movable electrode, the contact between the electrodes being made within an enclosure ensuring a vacuum seal.
- the movement of the moving electrode is made possible by the use of a circuit breaker control comprising an opening coil, a closing coil and a moving plate placed between these coils.
- the movable electrode is connected to the movable plate by a generally insulating rod.
- a capacitive assembly is discharged in the corresponding coil.
- the current peak flowing through the coil then generates an electromagnetic pulse which generates induced eddy currents in the moving plate, the electromagnetic field of which opposes that of the coil.
- the movable plate is then said to be “induced”.
- a repulsive force thus appears between the supplied coil and the armature, which makes it possible to move the movable plate and the movable electrode connected to it.
- the reaction force on the opening coil and on its support induces harmful vibrations when opening.
- the reaction force on the opening coil and on its support can deform them or move them in the frame of reference of the frame that supports them.
- the air gap between the opening coil and the surface of the armature may become irregular on the surface of the armature.
- the air gap may in particular increase during the lifetime of the
- SUBSTITUTE SHEET (RULE 26) circuit breaker.
- the invention aims to resolve one or more of these drawbacks.
- the invention thus relates to an induction-controlled vacuum interrupter switch, as defined in the appended claims.
- the invention also relates to the variants of the dependent claims. Those skilled in the art will understand that each of the features of the dependent claims and the description can be combined independently with the above features, without constituting an intermediate generalization.
- FIG.1 shows a side sectional view of an induction-controlled vacuum interrupter circuit breaker, in the closed position, comprising a switch with two induced plates, according to an exemplary implementation of the invention
- FIG.2 shows a top sectional view of an actuator of the circuit breaker of Figure 1, in section at a shaft;
- FIG.3 shows a top sectional view of an actuator variant of the circuit breaker of Figure 1;
- FIG.4 shows a detailed side sectional view of the control unit of the circuit breaker of Figure 1;
- FIG.5 shows a side sectional view of the circuit breaker in the open position
- FIG.6 shows a side sectional view of a variant of the circuit breaker, in the closed position, comprising two switches and two induced plates, according to another exemplary implementation of the invention
- FIG.7 shows a side sectional view of the variant of the circuit breaker of Figure 6, in the open position
- FIG.8 shows a side sectional view of another variant of the circuit breaker, in the closed position, comprising two switches and four induced plates, according to another example of implementation of the invention
- FIG.9 shows a side sectional view of the variant of the circuit breaker of Figure 8, in the open position
- FIG.10 is a side sectional view of an induction-controlled vacuum interrupter switch according to one embodiment of the invention, in the open position;
- FIG.11 shows a sectional view of the vacuum interrupter switch of Figure 10, in the closed position.
- the invention applies to an electrical safety switch, the main function of which is either the isolation, for example for a circuit breaker, or the connection for example for a grounding device.
- Figure 1 shows a side sectional view of an example of an induction-controlled vacuum interrupter circuit breaker 1 according to the invention, in the closed position, comprising a frame 10 on which is fixed a vacuum interrupter 11 .
- the vacuum interrupter 11 comprises:
- a switch 111 itself comprising a fixed electrode 1111 and a movable electrode 1113.
- the electrodes 1111 and 1113 are aligned along an axis A.
- the electrodes 1111 and 1113 are housed in the vacuum chamber 110;
- the electrodes 1111 and 1113 are thus capable of being brought into contact (to close the switch) or separated from one of the other (to open the switch) while maintaining the vacuum seal of the enclosure 110.
- SUBSTITUTE SHEET (RULE 26) The supply and departure of the line current is effected by electrical connections 1112 and 1114 respectively connected to the electrodes 1111 and 1113.
- the circuit breaker 1 comprises an actuator 12 integral with the movable electrode 1113.
- the actuator 12 enables the movable electrode 1113 to be actuated on opening or closing of the switch 111 of the circuit breaker 1.
- the actuator 12 is slidably mounted in the vertical direction parallel to the axis A.
- the actuator 12 comprises an armature 122.
- the circuit breaker 1 also comprises:
- the opening control unit comprises a coil 131;
- the actuator 22 comprises an armature 222.
- the coil 131 is positioned between the armature 122 and the armature 222.
- the opening control member is configured to simultaneously induce an opening current in the armature 122 and a current in the armature 222, so as to separate the electrodes 1111 and 1113 and so as to move the actuators 12 and 22 in opposite directions in the vertical direction parallel to the axis A.
- the control member thus makes it possible, on the one hand, to open the circuit breaker 1 in a reduced time and to compensate for the reaction forces of the armature 122 on the winding 131 by the reaction forces of the armature 222 on the coil 131, as detailed below.
- the mobile mass integral with the actuator 22 is at least equal to half of the mobile mass integral with the actuator 12, preferably equal to the mass of this actuator 12, in order to obtain optimum compensation reaction forces on the coil 131.
- the mobile mass integral with an actuator includes in particular its mass and that of its mobile electrode.
- the actuator 12 here comprises a rod 121.
- the rod 121 optionally comprises an element 1210 made of dielectric material in order to eliminate any risk of ignition between a control zone of the circuit breaker 1 and the movable electrode 1113.
- the rod 121 also comprises one or more arms 1211, advantageously made of a conductive material.
- the element 1210 is interposed between the arm 1211 and the electrode 1113.
- the armature 122 is integral with the arm 1211.
- the dielectric element 1210 of the rod 121 advantageously has a tubular shape.
- the armature 122 advantageously takes the form of a plate located between a planar coil 132 and the coil (here also planar) 131.
- the planar coil 132 belongs to a control member for closing the circuit breaker 1.
- the planar coil 132 is the closing coil.
- the coil 132 is therefore positioned opposite the armature 122 of the actuator 12, on the side opposite the armature 222.
- the armature 122 here comprises a conductive lower surface 1221 facing the coil 132 and a conductive upper surface 1222 facing the coil 131.
- the surfaces 1221 and 1222 can be formed in one piece in a solid plate or be attached to a support in the shape of a tray and in a different material. Surfaces 1221 and 1222 are perpendicular to the A axis.
- the surfaces 1221 and 1222 are advantageously metallic.
- the material of the armature 122 can be selected for its high conductivity / density ratio; the material of the armature 122 may thus advantageously be aluminum.
- the arm or arms 1211 are advantageously covered with the same metallic material as the surfaces 1221 and 1222 or formed in the same metallic material as the surfaces 1221 and 1222. A metallic part of the arms 1211 is thus surrounded by the coil 131, in order to promote a centering of the actuator 12.
- the armature surfaces 1221 and 1222 (as well as the winding 131) are axisymmetric with respect to the axis A, so that couples of forces are compensated on the various elements of the armature 122 .
- SUBSTITUTE SHEET (RULE 26) A planar coil 133 is placed opposite the coil 132 symmetrically with respect to the coil 131.
- the coils 131, 132 and 133 are fixed to the frame 10 and traversed in the vertical direction parallel to the axis A by the rod 121 of the actuator 12.
- the actuator 22 also passes through the coils 131, 132 and 133 in the vertical direction parallel to the axis A.
- the actuator 22 also comprises a rod 221, of advantageously tubular shape, symmetrical with the rod 121 in the vertical direction parallel to the axis A.
- the rod 221 also comprises one or more arms 2211, passing through the coils 131, 132 and 133 and the armature 122 in the vertical direction.
- the armature 222 has a conductive upper surface 2221 facing the coil 133 and a conductive lower surface 2222 facing the coil 131.
- the surfaces 2221 and 2222 can be formed integrally in a solid plate or be attached to a support. Surfaces 2221 and 2222 are perpendicular to the A axis. Surfaces 2221 and 2222 are metallic.
- the armature 222 material can be selected for its high conductivity / density ratio; the material of the armature 222 may thus advantageously be aluminum.
- the arm (s) 2211 are advantageously covered with the same metallic material as the surfaces 2221 and 2222. A metallic part of the arms 2211 is thus surrounded by the coil 131, in order to promote centering of the actuator 22.
- the armature 222 is integral. of the arm 2211.
- Actuator 12 passes through armature 222 between coils 131 and 133.
- Actuator 22 passes through armature 122 between coils 131 and 132.
- Actuators 12 and 22 preferably have strictly similar tubular shapes.
- the actuators 12 and 22 are also advantageously made of the same material.
- This configuration allows the actuators 12 and 22 to guide each other in sliding in the direction parallel to the axis A perpendicular to the surfaces 1221, 1222, 2221 and 2222.
- Figure 2 shows a top sectional view of the actuator 12. It shows the surface 1222 of the armature plate 122 of the circuit breaker 1 according to an exemplary embodiment of the invention.
- the armature 122 advantageously has the shape of a disc.
- the rod 121 advantageously has three arms 1211 extending in the direction parallel to the axis A perpendicular to the surface 1222 and to the surface 1221 (not visible in FIG. 2) and distributed symmetrically around the center Z (combined with the axis A) of the armature 122.
- the armature 122 is pierced with holes 123, in which the arms 2211 of the rod 221 of the actuator 22 (not shown) slide.
- the orifices 123 are advantageously the same number as the arms 1211 of the rod 121 and distributed symmetrically around the center Z of the armature 122.
- Figure 3 shows a top sectional view of the actuator 12. It shows the surface 1222 of the armature plate 122 of the circuit breaker 1, according to an alternative embodiment of the invention with two arms 1211 and two ports 123.
- Figure 4 shows a detailed side sectional view of the opening control member of the circuit breaker 1.
- the coil 131 is connected to a capacitor or capacitive assembly (not shown) configured to generate an opening current in the coil 131.
- the peak of the opening current The coil 131 thus travels which then generates an electromagnetic pulse which generates in the armature 122 and in the armature 222 induced eddy currents, the electromagnetic field of which opposes that of the coil 131.
- Mechanical repulsive forces B, C and D then appear between the powered coil 131 and the armatures 122 and 222.
- the forces B and C appear in directions respectively perpendicular to the surfaces 1221 and 1222.
- the forces B and C make it possible to give the actuator 12 sufficient acceleration in the direction parallel to the axis A to move the actuator 12 in that direction, in a way
- the force D appears in a direction perpendicular to the axis A.
- the force D makes it possible to generate a magnetic centering of the actuator 12 and of the actuator 22 vis- with respect to axis A.
- Figure 5 shows a side sectional view of the vacuum interrupter with induction control 1, in the open position, obtained by generation of an opening current in the coil 131 as detailed above.
- the coils 132 and 133 are connected to a capacitor or capacitive assembly (not shown) configured to generate a closing current in the coils 132 and 133.
- the current peak closure thus passes through the coils 132 and 133 which then generate an electromagnetic pulse which generates respectively in the armature 122 and in the armature 222 induced eddy currents whose electromagnetic field opposes that of the coils 132 and 133 respectively.
- FIG. 6 shows a side sectional view of the vacuum interrupter circuit breaker with induction control 1, in the closed position, according to an alternative embodiment of the invention comprising the frame 10 on which are attached two vacuum interrupters 11 and 21.
- the vacuum interrupter 21 comprises:
- a switch 211 itself comprising a fixed electrode 2111 and a movable electrode 2113.
- the electrodes 2111 and 2113 are aligned along the axis A.
- the electrodes 2111 and 2113 are housed in the vacuum chamber 210;
- a bellows 212 allowing a translational movement of the movable electrode 2113 along the axis A.
- the electrodes 2111 and 2113 are thus capable of being brought into contact or separated from one another while maintaining the seal to the vacuum of the enclosure 210.
- the supply and departure of the line current is effected by electrical connections 2112 and 2114 respectively connected to the electrodes 2113 and 2111.
- the movable electrode 2113 is made integral with an element 2210 of the rod 221 of the actuator 22.
- the element 2210 is made of dielectric material in order to eliminate any risk of ignition between a control zone of the circuit breaker 1 and the movable electrode 2113.
- the dielectric element 2210 advantageously has a tubular shape.
- the generation of a single opening current in the coil 131 makes it possible to give the actuators 12 and 22 sufficient acceleration to open both the switch 111 and switch 211, while preserving the balance of the forces exerted on the coil 131. If the actuators 12 and 22 are identical and if the switches 111 and 211 are identical, the forces exerted on the coil 131 are perfectly balanced. It can be considered that the forces of gravity are negligible compared to the forces exerted on the actuators 12 and 22 by the coil 131 during opening.
- the switches 111 and 211 can be electrically connected in series, which makes it possible to increase the breaking capacity of the opening control of the circuit thus formed. Such a double cut can also be obtained in a volume
- the switches 111 and 211 can each be connected to an independent current circuit or to two circuits connected in parallel, which makes it possible to obtain the simultaneous opening. of these two current circuits.
- a parallel connection makes it possible to conduct double the current in the closed state, thus avoiding excessive heating.
- switches 111 and 211 When the switches 111 and 211 are connected in series or in parallel, it is advantageous to connect their mobile electrodes 1113 and 2113 together, in order to be able to minimize or eliminate the thickness of the dielectric elements 1210 and 2210.
- Figure 7 shows a side sectional view of the vacuum interrupter circuit breaker with induction control 1, according to the variant described in Figure 6, in the open position, obtained by generation of an opening current in the coil 131 as detailed previously.
- the coils 132 and 133 are connected to a capacitor or capacitive assembly (not shown) configured to generate a closing current in the coils 132 and 133.
- a capacitor or capacitive assembly (not shown) configured to generate a closing current in the coils 132 and 133.
- mechanical repulsive forces then appear between the coil 132 and the armature 122, in a direction perpendicular to the surface 1221. These forces make it possible to give the actuator 12 sufficient acceleration in the direction parallel to the axis A to move the actuator 12 in this direction, in a closing direction of the switch 111.
- Figure 8 shows a side sectional view of the vacuum interrupter circuit breaker with induction control 1, in the closed position, according to another variant embodiment of the invention comprising the frame 10 on which the two vacuum interrupters 11 and 21 described above are attached.
- the circuit breaker 1 comprises here:
- an opening control member itself comprising two coils 135 and 136;
- a closing control member itself comprising a coil 134
- the actuator 12 itself comprising two armatures 123 and 124,
- the actuator 22 itself comprising two armatures 223 and 224.
- the coils 135 and 136 are distributed symmetrically on either side of the coil 134.
- the coil 135 is located between the coil 134 and the bulb 21.
- the coil 136 is located between the coil 134 and the bulb 11.
- the coils 134, 135 and 136 are made integral with the frame 10.
- the armature 123 is located between the coils 134 and 136.
- the armature 124 is located between the coil 135 and the bulb 21.
- the armature 223 is located between the coils 134 and 135.
- the armature 224 is located between coil 136 and bulb 11.
- the opening control member is configured to simultaneously generate an opening current in the armatures 123 and 124 on the one hand, and an equivalent opening current in the armatures 223 and 224 on the other hand, of so as to move the actuators 12 and 22 in opposite directions in the vertical direction parallel to the axis A.
- the coils 135 and 136 are connected to a capacitor or capacitive assembly (not shown) configured to generate an opening current in the coils 135 and 136.
- the peak opening current thus travels through the coils 135 and 136, which then each generate an electromagnetic pulse.
- the pulse generated in the coil 135 generates in the armatures 124 and 223 induced eddy currents whose electromagnetic field opposes that of the coil 135. Mechanical repulsive forces then appear between the powered coil 135 and the induced 124 and 223, according to directions
- SUBSTITUTE SHEET (RULE 26) respectively perpendicular to the surfaces 1242 and 2232 of the armatures 124 and
- the pulse generated in the coil 136 generates in the armatures 123 and 224 induced eddy currents whose electromagnetic field opposes that of the coil 136. Mechanical repulsive forces then appear between the powered coil 136 and the armatures 123 and 224, in directions respectively perpendicular to the surfaces 1232 and 2242 of the armatures 123 and
- FIG. 9 shows a side sectional view of the vacuum interrupter with induction control 1, in the open position, obtained by generating an opening current in the coils 135 and 136 as detailed previously.
- the coil 134 is connected to a capacitor or capacitive assembly (not shown) configured to generate a closing current in the coil 134.
- the peak of the closing current thus travels the coil 134 which then generates an electromagnetic pulse which generates in the armature 123 and in the armature 223 induced eddy currents whose electromagnetic field opposes that of the coil 134.
- Magnetic repulsive forces then appear between the coil 134 and the armatures 123 and 223, in directions perpendicular respectively to the surfaces 1232 and 2232 of the armatures 123 and 223. These forces make it possible to give the actuators 12 and 22 sufficient acceleration in the direction parallel to the axis A to move the actuator 12 and the actuator 22 in this direction in opposite directions for closing the switches 111 and 211.
- Figure 10 shows a side sectional view of an example of an induction-controlled vacuum interrupter switch 3 according to the invention, in
- SUBSTITUTE SHEET (RULE 26) open position, comprising a frame 30 on which is fixed a vacuum interrupter 31.
- the vacuum interrupter 31 comprises:
- a switch 311 itself comprising a fixed electrode 3111 and a movable electrode 3113.
- the electrodes 3111 and 3113 are aligned along an axis A.
- the electrodes 3111 and 3113 are housed in the vacuum chamber 310;
- the electrodes 3111 and 3113 are thus capable of being brought into contact (to close the switch) or separated from one of the other (to open the switch) while maintaining the vacuum seal of the enclosure 310.
- the supply and departure of the line current is effected by electrical connections 3112 and 3114 respectively connected to the electrodes 3111 and 3113.
- the contactor 3 comprises an actuator 32 integral with the movable electrode 3113.
- the actuator 32 enables the movable electrode 3113 to be actuated on opening or closing of the switch 311 of the contactor 3.
- the actuator 32 is slidably mounted in the vertical direction parallel to the axis A.
- the actuator 32 comprises an armature 322.
- the contactor 3 also includes:
- the closing control unit has a winding 331;
- the actuator 42 includes an armature 422.
- the coil 331 is positioned between the armature 322 and the armature 422.
- the closing control member is configured to simultaneously generate a closing current in the armature 322 and a current in the armature 422, so as to separate the electrodes 3111 and 3113 and so as to move the actuators 32 and 42 in opposite directions in the vertical direction parallel to the axis A.
- the control unit thus makes it possible, on the one hand, to close the circuit breaker 3 in a reduced time and to
- SUBSTITUTE SHEET (RULE 26) compensate for the reaction forces of the armature 322 on the coil 331 by reaction forces of the armature 422 on this coil 331, as detailed below.
- compressive forces of the same amplitude are applied only to this coil 331, which makes it possible to reduce the dimensioning of its attachment to the frame 30. Due to the compensation of these forces, the coil 331 undergoes less deformation and the air gap between this winding 331 and the armature 322 varies little over the life of the contactor 3. It is thus possible to guarantee a rapid closing time of the contactor 3, even after a large number of opening and closing operations. .
- the vibrations generated when contactor 3 is closed are also reduced.
- the mobile mass integral with the actuator 42 is at least equal to half of the mobile mass integral with the actuator 32, preferably equal to the mass of this actuator 32, in order to obtain optimum compensation reaction forces on the coil 331.
- the movable mass integral with an actuator notably includes the mass of the electrode in addition to that of the actuator itself.
- the actuator 32 here comprises a rod 321.
- the rod 321 optionally comprises an element 3210 made of dielectric material in order to eliminate any risk of ignition between a control zone of the circuit breaker 3 and the movable electrode 3113.
- the rod 321 also comprises one or more extensions 320, advantageously made of a conductive material.
- the extension 320 here extends beyond the armature 322.
- the armature 322 is integral with the rod 3210.
- the dielectric element 3210 of the rod 321 advantageously has a tubular shape.
- the armature 322 advantageously takes the form of a plate located between a planar coil 333 and the coil (here also planar) 331.
- the planar coil 333 belongs to an opening control member of the contactor 3.
- the coil planar 333 is the opening coil.
- the coil 333 is therefore positioned opposite the armature 322 of the actuator 32, on the side opposite the coil 331.
- the armature 322 here comprises a conductive lower surface 3221 facing the coil 331 and a conductive upper surface 3222 facing the
- the surfaces 3221 and 3222 can be formed integrally in a solid plate or be attached to a support in the form of a plate and of a different material.
- the surfaces 3221 and 3222 are perpendicular to the axis A.
- the surfaces 3221 and 3222 are advantageously metallic.
- the material of the armature 322 can be selected for its high conductivity / density ratio; the material of the armature 322 may thus advantageously be aluminum.
- the armature surfaces 3221 and 3222 (as well as the winding 331) are axisymmetric with respect to the axis A, so that couples of forces are compensated on the various elements of the armature 322.
- a planar coil 332 is placed opposite the coil 333 symmetrically with respect to the coil 331.
- the coils 331, 332 and 333 are fixed to the frame 30.
- the actuator 42 also includes a rod 421, of advantageously tubular shape, identical in shape to the rod 321.
- the armature 422 has a conductive upper surface 4221 facing the coil 331 and a conductive lower surface 4222 facing the coil 131.
- the surfaces 4221 and 4222 can be formed in one piece in a solid plate or be attached to a support. Surfaces 4221 and 4222 are perpendicular to the A axis. Surfaces 4221 and 4222 are metallic.
- the material of the armature 422 can be selected for its high conductivity / density ratio; the material of the armature 422 may thus advantageously be aluminum.
- the armature 422 is integral with the rod 4210.
- the extension 320 of the actuator 32 passes through the armature 422 and the coil 331.
- the extension 420 of the actuator 42 passes through the armature 322 and the coil 331. This configuration allows the actuators 32 and 42 to be guided mutually sliding in the direction parallel to the axis A perpendicular to the surfaces 3221, 3222, 4221 and 4222.
- the armature 322 advantageously has the shape of a disc.
- the rod 321 may have several extensions 320 extending in the direction parallel to the axis A perpendicular to the surface 3222 and to the surface 3221 around the axis A of the armature 322.
- SUBSTITUTE SHEET (RULE 26)
- the armature 322 is pierced with orifices in which the extensions 420 of the rod 421 of the actuator 42 slide.
- the orifices are advantageously the same number as the extensions 420 of the rod 421 and distributed symmetrically around the axis A.
- the coil 331 is connected to a capacitor or capacitive assembly (not shown) configured to generate a closing current in the coil 331.
- the peak of the opening current runs through thus the coil 331 which then generates an electromagnetic pulse which generates in the armature 322 and in the armature 422 induced eddy currents whose electromagnetic field opposes that of the coil 331.
- Mechanical repulsive forces then appear between the coil. powered winding 331 and armatures 322 and 422.
- a control can apply a current to the coil 333 (and similarly to the coil 332) to generate a current d 'opening.
- the opening current thus travels through the winding 333 (and similarly the winding 332) which then generates an electromagnetic pulse which generates in the armature 322 (similarly in the armature 422) induced eddy currents whose field electromagnetic opposes that of coil 333 (and similarly to that of coil 332).
- Mechanical repulsive forces then appear between the powered coil 333 and the armature 322 (similarly between the powered coil 332 and the armature 422).
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Mechanical Control Devices (AREA)
- Electromagnets (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2005552A FR3111007B1 (en) | 2020-05-26 | 2020-05-26 | Vibration-limiting induction-controlled vacuum switch |
PCT/EP2021/063925 WO2021239739A1 (en) | 2020-05-26 | 2021-05-25 | Induction-controlled switch having a vacuum bulb for reducing vibrations |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4158672A1 true EP4158672A1 (en) | 2023-04-05 |
EP4158672B1 EP4158672B1 (en) | 2024-05-01 |
Family
ID=72356125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21727886.0A Active EP4158672B1 (en) | 2020-05-26 | 2021-05-25 | Induction-controlled switch having a vacuum bulb for reducing vibrations |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230197378A1 (en) |
EP (1) | EP4158672B1 (en) |
JP (1) | JP2023527004A (en) |
KR (1) | KR20230014751A (en) |
FR (1) | FR3111007B1 (en) |
WO (1) | WO2021239739A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3163929B2 (en) | 1995-02-10 | 2001-05-08 | 富士電機株式会社 | Electromagnetic repulsion drive for vacuum circuit breakers |
JP3661804B2 (en) | 1995-09-26 | 2005-06-22 | 富士電機システムズ株式会社 | DC high speed vacuum circuit breaker |
WO2008139250A1 (en) * | 2007-05-16 | 2008-11-20 | Kulygin, Viktor Ivanovych | Combined electrically-controlled actuator |
DE202011050847U1 (en) * | 2010-10-16 | 2011-11-21 | Msm Krystall Gbr (Vertretungsberechtigte Gesellschafter: Dr. Rainer Schneider, 12165 Berlin; Arno Mecklenburg, 10999 Berlin) | Electromagnetic linear actuator |
JP6044645B2 (en) * | 2015-01-07 | 2016-12-14 | 株式会社明電舎 | Vacuum circuit breaker |
-
2020
- 2020-05-26 FR FR2005552A patent/FR3111007B1/en active Active
-
2021
- 2021-05-25 KR KR1020227045087A patent/KR20230014751A/en active Search and Examination
- 2021-05-25 EP EP21727886.0A patent/EP4158672B1/en active Active
- 2021-05-25 US US17/925,663 patent/US20230197378A1/en active Pending
- 2021-05-25 WO PCT/EP2021/063925 patent/WO2021239739A1/en unknown
- 2021-05-25 JP JP2022572462A patent/JP2023527004A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR3111007B1 (en) | 2022-05-13 |
KR20230014751A (en) | 2023-01-30 |
US20230197378A1 (en) | 2023-06-22 |
WO2021239739A1 (en) | 2021-12-02 |
EP4158672B1 (en) | 2024-05-01 |
JP2023527004A (en) | 2023-06-26 |
FR3111007A1 (en) | 2021-12-03 |
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