WO2020055317A1 - Interrupteur de courant à commande de temps de marche d'actionneur - Google Patents

Interrupteur de courant à commande de temps de marche d'actionneur Download PDF

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Publication number
WO2020055317A1
WO2020055317A1 PCT/SE2019/050862 SE2019050862W WO2020055317A1 WO 2020055317 A1 WO2020055317 A1 WO 2020055317A1 SE 2019050862 W SE2019050862 W SE 2019050862W WO 2020055317 A1 WO2020055317 A1 WO 2020055317A1
Authority
WO
WIPO (PCT)
Prior art keywords
current
electro
coil
generating device
actuator
Prior art date
Application number
PCT/SE2019/050862
Other languages
English (en)
Inventor
Lennart Ängquist
Staffan Norrga
Antoine BAUDOIN
Original Assignee
Scibreak Ab
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 Scibreak Ab filed Critical Scibreak Ab
Publication of WO2020055317A1 publication Critical patent/WO2020055317A1/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
    • H01H33/28—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • 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
    • H01H33/006—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means adapted for interrupting fault currents with delayed zero crossings
    • 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
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc
    • 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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Definitions

  • the invention relates to fast-acting circuit-breakers that include
  • Circuit-breakers with capability to interrupt even non-zero current i.e. performing current interruption independent of the external network
  • DC direct current
  • circuit-breakers with capability to interrupt even non-zero current i.e. performing current interruption independent of the external network
  • DC direct current
  • circuit-breakers with capability to interrupt even non-zero current i.e. performing current interruption independent of the external network
  • Both these applications require very short operating time, typically current growth at a short-circuit must be neutralized already after a few milliseconds.
  • FIG. 1 shows an outline of a prior art current interrupter 1 comprising a contact arrangement, generally designated 10, adapted to interrupt current ii oad flowing in a current-carrying line 2.
  • the contact arrangement 10 comprises a first, fixed contact 12 and a second, movable contact 14.
  • the movable contact 14 is mechanically connected to a mechanical drive train 20 which may comprise components such as an over-travel mechanism 22 and a bi- stable mechanism 24.
  • the mechanical drive train 20 is mechanically connected to an actuator, i.e. , a force-generating device 30.
  • the actuator 30 performs both opening and closing operations on the contacts 12 and 14. Operating time for opening operations is critical and the system for opening operations will be discussed in the following text.
  • the force-generator in the actuator 30 typically is an electro-magnetic device, most often based on the Thomson coil principle, see Fig. 2.
  • a Thomson coil consists of a flat coil 32 facing a flat metallic armature disc 34, which is arranged concentrically close to of the flat coil 32.
  • a current is forced through the coil 32, a mirror current is induced in the armature disc 34 and a strong repulsive force is created between the coil 32 and the armature disc 34.
  • the current driven into the coil 32 normally comes from a current driver 40 with an energy storage 42 in the form of a charged capacitor connected to the coil 32 through a switch 44, typically a semiconductor switch such as a thyristor, which controls the start of the discharge of the energy storage.
  • a switch 44 typically a semiconductor switch such as a thyristor, which controls the start of the discharge of the energy storage.
  • a second coil 32’ placed below the disk 34, may be provided to close the contacts 12 and 14.
  • An object of the present invention is to provide a circuit breaker having long life span thanks to improved control of the opening and closing operation of the current interrupter.
  • a current interrupter for a circuit-breaker comprising: a contact arrangement adapted to interrupt current and comprising a first contact and a second, movable contact; a mechanical drive train mechanically connected to the movable contact; an actuator mechanically connected to the mechanical drive train and comprising an electro- magnetic force-generating device; a current driver comprising an energy storage connected to the actuator for energizing the electro-magnetic force-generating device; and a current reference generator adapted to provide a current reference signal to the current driver; which is characterized in that the current driver comprises a current controller comprising semiconductor devices having turn-off capability and being adapted to provide switched mode control of discharge current from the energy storage in accordance with the received current reference signal from the reference generator, wherein the current reference signal from the reference generator (50) is derived from conditions measured in run-time.
  • the electro-magnetic force-generating device comprises a Thomson coil.
  • the electro-magnetic force-generating device comprises a first coil for opening the contacts and a second coil for closing the contacts wherein the first and second coils share a common armature disc and each coil has a corresponding current controller.
  • the electro-magnetic force-generating device comprises a double-coil arrangement.
  • the switched mode control comprises pulse- width-modulation control.
  • the current reference signal from the reference generator is derived from conditions measured in run-time.
  • a circuit-breaker comprising a current interrupter according to the invention is provided.
  • a system of circuit-breakers comprising a plurality of current interrupters according to invention, wherein the electro-magnetic force-generating devices of several actuators are connected to a common energy storage.
  • a method of controlling the mechanical stress on the mechanical drive train and the actuator in a current interrupter is provided, which is characterized by the steps of: adapting the current reference signal from the current reference generator, using the current controller to provide a current requested by the current reference generator, thereby controlling current provided from the energy storage to the electro-magnetic force-generating device according to a switched- mode control scheme in dependence of detected conditions, wherein the current reference generator (50) receives input signals from conditions measured in run- time to provide the reference signal to the current controller (46).
  • the current reference generator receives input signals from conditions measured in run-time to provide the reference signal to the current controller.
  • the step of detecting a condition comprises detecting any of the actual level of the current and the derivative of the current to be interrupted and the type of operation to be executed.
  • the detected conditions comprise internal conditions inside the actuator, at least one of the following: distance between coil and armature in the electro-magnets force-generating device; and acceleration, speed and position of the movable contact.
  • the switched-mode control scheme comprises pulse-width-modulation control.
  • an on-going operation preferably an opening operation
  • the movable contact is returned to its start position by controlling the currents to the first and second coils.
  • Figs. 1 and 2 show a current interrupter according to prior art.
  • Fig. 3 shows schematically a current interrupter according to the invention.
  • Fig. 4 shows an embodiment of a current interrupter according to the invention comprising a Thomson coil.
  • Fig. 4a is a perspective view of an electro-magnetic force-generating device in the form of a Thomson coil and
  • Fig. 4b is a corresponding view of an electro-magnetic force-generating device in the form of a double-coil arrangement.
  • Fig. 5 is a diagram showing the acceleration force for different actuator control schemes.
  • Fig. 6 shows a PWM control scheme.
  • Figs. 7 and 8 illustrate current control in the embodiment shown in Fig. 3.
  • Fig. 9 shows an embodiment of a current interrupter according to the invention with open and close coils.
  • Fig. 10 illustrates a circuit-breaker incorporating a current interrupter according to the invention.
  • Fig. 11 shows several current controllers 46 sharing a common energy storage 42.
  • Fig. 12 presents a set of diagrams showing the voltage across a capacitor in the energy storage 42 when it is shared by several current controllers 46.
  • electro-magnetic force-generating device will be used herein to describe devices supplied with current to generate a mechanical force, such as Thomson coils and double-coil arrangements.
  • Tehomson coil When the term“Thomson coil” is used herein, it should be construed as the arrangement including both a flat coil 32 and an armature disc 34, unless otherwise stated.
  • FIG. 3 A schematic diagram of a current interrupter according to the invention is given in Fig. 3.
  • the general design is similar to the prior art current interrupters shown in Figs 1 and 2.
  • it comprises a contact arrangement 10 with a fixed contact 12 and a movable contact 14 adapted to interrupt current ii oad flowing in a current line 2.
  • the movable contact 14 is mechanically connected to a mechanical drive train 20 and in the end opposite to the end connected to the current interrupter 10, the mechanical drive train 20 is mechanically connected to an actuator, i.e. , an electro-magnetic force-generating device 30.
  • actuator control aims to manipulate the movement of the moving contact 14.
  • this target has been achieved by selecting the initial voltage of one or several energy capacitors that are being discharged through the Thomson coil.
  • the final goal of such voltage selection is to safeguard that the current provided to the electro-magnetic force-generating device 30 exceeds the minimum value required to create sufficient force to separate the contacts 12 and 14 in the allowed operating time.
  • the initial capacitor voltage must be selected, taking the variation of certain parameters in the electrical circuit in the electro- magnetic force-generating device 30 into account. Such parameters are e.g. the resistance in the coil and the rest of the circuit, capacitance variation in the energy storage capacitors, inductance variations etc.
  • FIG. 4 An embodiment of a current interrupter according to the invention is outlined in more detail in Fig. 4.
  • the actuator 30 comprises a Thomson coil with a flat coil 32 and an armature disc 34, see also Fig. 4a, showing a perspective view of a Thomson coil.
  • the winding of the coil 32 is connected to the current driver 40 and more specifically to the outputs of a current controller 46 therein.
  • the current controller 46 is provided between the energy storage in the form of a capacitor 42 and the Thomson coil 32, 34.
  • the current controller 46 comprises semiconductor devices having turn-off capability, such as GTOs, IGBTs and MOSFETs, being adapted to provide switched-mode control of discharge current from the energy storage 42.
  • a double-coil arrangement could be used, see Fig. 4b showing a perspective view of such windings with a first fixed flat coil 132 and a second moving coil 134.
  • the moving armature coil 134 is
  • the current driver 40 may receive a control signal from a reference generator 50 connected thereto.
  • This reference generator receives inputs related to run-time conditions, such as e.g. the amplitude and derivative of the actual line current to be interrupted, other information related to the system wherein the circuit-breaker is connected, measured initial position of the armature disk 34 or measured position of the armature disk throughout the whole open or close operation. Other information may be the required speed of operation at the upcoming operations as well as the type of operation to be executed, i.e. , opening or closing operation of the contacts 12, 14.
  • the obtained run-time conditions can be used to adapt the current sent into the electro-magnetic force-generating device, e.g. the Thomson coil 32, 34, so that unnecessary use of the maximum actuator force, accompanied by unnecessary loss of life time, is avoided.
  • an actuator according to the invention a better performance of the actuator can be obtained if the current waveform is controlled with a current controller.
  • the energy in the capacitor can be better utilized by applying a control scheme and one preferred waveform is shown in Fig. 5 with a dashed line.
  • the invention also relates to a method of controlling the mechanical stress on the mechanical drive train and the actuator in the current interrupter, which is part of a fast-acting circuit-breaker for DC or AC.
  • This method involves the steps of detecting a condition during the operation of the current interrupter 1 and then controlling current provided from the energy storage 42 to the Thomson coil 32, 34 in dependence of the detected condition. This regulation is conducted continuously or intermittently during the operation of the current interrupter 1.
  • the control scheme is used to limit the stress in the mechanical system that executes the change of the movable contact position.
  • the method implies that the exciting current brought into force generating device of the actuator is controlled by the current driver 40 and that the current reference to the controller is created in run-time taking into account the specific conditions prevailing at each actual interruption.
  • the allowed operating time normally refers to short-circuit conditions, but many, if not most, operations are performed with load currents with normal load current. At these current levels the operating time can be extended to reduce the force applied to the mechanical system. Accordingly, the current reference may be reduced when this condition is at hand.
  • the allowed operating time normally refers to short-circuit conditions, where it is assumed that the highest allowed short-circuit current derivative acts during the full time interval, from trip command until sufficient contact separation has been achieved. The operation time can be extended if measured current derivative is lower (remote fault) than expected.
  • FIG. 6 shows an example with a main circuit in the form of a half-bridge voltage source converter (VSC) performing pulse width modulation (PWM).
  • VSC half-bridge voltage source converter
  • PWM pulse width modulation
  • the measured current through the electro-magnetic force-generating device is continuously compared with the current reference and the deviation is amplified in a proportional-integral (PI) amplifier that determines the duty-cycle of the VSC.
  • PI proportional-integral
  • the switching pattern finally is obtained by subtracting an internally created triangular wave and bringing the difference to a comparator.
  • a large number of alternative main circuits full-bridge, choppers, etc.
  • many different control and modulation schemes can be used.
  • Switched-mode modulation schemes with high switching frequency may be utilized as the operating time for the actuator is short, typically only a few milliseconds. Cooling is not required in most cases.
  • Fig. 7 illustrates an embodiment wherein the load current ii oad to be interrupted is monitored and when a command is given to the circuit-breaker in which the current interrupter 1 is provided, the actual level of current to be interrupted is used to determine the acceptable time of interruption.
  • the current reference generator 50 provides a current reference signal to the current driver 40 and that the control is performed in accordance with the received reference signal from the reference generator. At low current to be interrupted the operation time is prolonged, thereby reducing the stress on the mechanical system and extending the life span of the circuit-breaker.
  • Fig. 8 illustrates an embodiment wherein the load current derivative is monitored and the available time before the current reaches the current
  • Fig. 9 illustrates an embodiment wherein the actuator 30 comprises two coils: a first coil 32 for opening and a second coil 32’ for closing the contacts 12,
  • the two coils 32, 32’ share the same armature disc 34 and each coil has a corresponding current controller 46 and 46’, respectively. If the current through the first coil 32 driving the movable contact 14 from its closed position is being brought to zero and, simultaneously, the current in the second coil 32’ driving the movable contact 14 towards its closed position is energized, the movable contact 14 can be stopped and returned to its initial closed position. In this way a commanded opening command may be disabled without disturbing the load current. In other words, if the current interrupter is equipped with two
  • Fig. 10 illustrates a circuit-breaker for high voltage applications comprising a current interrupter according to the invention.
  • a circuit-breaker shall operate very fast, in the range of a few milliseconds and to that end it is equipped with a fast actuator as has been described above.
  • a parallel branch 64 has been provided and it comprises means to create such a current zero-crossing.
  • a resonant passive circuit excited by a low-voltage VSC according to Swedish patent 529392 or EP 3 161 846 is shown.
  • the load current becomes commutated into an energy-absorbing, voltage-limiting branch 62, mainly comprising a metal-oxide varistor (MOV).
  • a circuit-breaker of this kind typically also comprises a residual breaker 60 controlled by a control device 61 , which provides isolation once the current has been eliminated by 1.
  • FIG. 12 shows the time course of the energy storage capacitor voltage (lower diagram) when a common energy storage is shared for current controllers providing current to the open coil (upper diagram) and the closing coil (middle diagram) in a circuit-breaker at a reclosing operation.
  • the current in the actuator 30 is strongly connected to the force from the force generating device in the actuator, i.e. the Thomson coil 32, 34.
  • the arrangement of current control allows, throughout the opening or closing operation of the current interrupter, fast and precise control on the force applied to the mechanical drive train 20 acting on the movable contact 14, and accordingly controls the resulting trajectory of the latter.
  • the contact arrangement has been described as comprising a first, fixed contact and a second, movable contact. It will be appreciated that also the first contact may be movable.—

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

Cette invention concerne un interrupteur de courant (1) pour un disjoncteur comprend un agencement de contact (10) conçu pour interrompre le courant (icharge) et comprenant un premier contact (12) et un second contact mobile (14); une transmission mécanique (20) reliée mécaniquement au contact mobile (14); un actionneur (30) relié mécaniquement à la transmission mécanique (20) et comprenant un dispositif de génération de force électromagnétique (30), un circuit conducteur de courant (40) comprenant un accumulateur d'énergie (42) connecté à l'actionneur (30) pour alimenter le dispositif de génération de force électromagnétique (30) et un générateur de référence de courant (50) conçu pour fournir un signal de référence de courant au circuit conducteur de courant (40), le signal de référence de courant provenant du générateur de référence (50) étant déduit des conditions mesurées pendant le temps de marche. En fournissant un dispositif de régulation de courant dans le circuit conducteur de courant (40) comprenant des dispositifs à semi-conducteur ayant une capacité de mise hors tension et étant conçus pour fournir une alimentation à découpage du courant de décharge à partir de l'accumulateur d'énergie (42) en fonction du signal de référence de courant reçu en provenance du générateur de référence (50), une commande améliorée de l'opération d'ouverture et de fermeture de l'interrupteur de courant est obtenue.
PCT/SE2019/050862 2018-09-14 2019-09-12 Interrupteur de courant à commande de temps de marche d'actionneur WO2020055317A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1851084-2 2018-09-14
SE1851084A SE1851084A1 (en) 2018-09-14 2018-09-14 Current interrupter with actuator run-time control

Publications (1)

Publication Number Publication Date
WO2020055317A1 true WO2020055317A1 (fr) 2020-03-19

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WO (1) WO2020055317A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3913647A1 (fr) * 2020-05-22 2021-11-24 ABB Schweiz AG Système de commutation

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0563904A1 (fr) 1992-04-02 1993-10-06 Hitachi, Ltd. Disjoncteur à vide
US6097246A (en) * 1997-04-30 2000-08-01 Kabushiki Kaisha Toshiba Current limiting breaking device using electromagnetic repulsion coil
EP1107270A2 (fr) * 1999-12-06 2001-06-13 Mitsubishi Denki Kabushiki Kaisha Dispositif de commutation
US6291911B1 (en) * 1995-05-15 2001-09-18 Cooper Industries, Inc. Electrical switchgear with synchronous control system and actuator
US6331687B1 (en) * 1995-05-15 2001-12-18 Cooper Industries Inc. Control method and device for a switchgear actuator
WO2007064535A1 (fr) * 2005-12-01 2007-06-07 S & C Electric Company Actionneur electromagnetique
SE529392C2 (sv) 2005-12-07 2007-07-31 Roger Fredriksson Låsanordning
WO2012045360A1 (fr) 2010-10-07 2012-04-12 Abb Technology Ag Coupe-circuit pour courant continu
DE102012217583A1 (de) * 2012-09-27 2014-03-27 Siemens Aktiengesellschaft Stellvorrichtung für eine Vakuumschaltröhre und Trennanordnung
EP3143631A1 (fr) 2014-05-14 2017-03-22 ABB Schweiz AG Actionneur basé sur bobine de thomson
EP3161846A1 (fr) 2014-06-30 2017-05-03 Scibreak AB Agencement, système et procédé d'interruption de courant

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0563904A1 (fr) 1992-04-02 1993-10-06 Hitachi, Ltd. Disjoncteur à vide
US6291911B1 (en) * 1995-05-15 2001-09-18 Cooper Industries, Inc. Electrical switchgear with synchronous control system and actuator
US6331687B1 (en) * 1995-05-15 2001-12-18 Cooper Industries Inc. Control method and device for a switchgear actuator
US6097246A (en) * 1997-04-30 2000-08-01 Kabushiki Kaisha Toshiba Current limiting breaking device using electromagnetic repulsion coil
EP1107270A2 (fr) * 1999-12-06 2001-06-13 Mitsubishi Denki Kabushiki Kaisha Dispositif de commutation
WO2007064535A1 (fr) * 2005-12-01 2007-06-07 S & C Electric Company Actionneur electromagnetique
SE529392C2 (sv) 2005-12-07 2007-07-31 Roger Fredriksson Låsanordning
WO2012045360A1 (fr) 2010-10-07 2012-04-12 Abb Technology Ag Coupe-circuit pour courant continu
DE102012217583A1 (de) * 2012-09-27 2014-03-27 Siemens Aktiengesellschaft Stellvorrichtung für eine Vakuumschaltröhre und Trennanordnung
EP3143631A1 (fr) 2014-05-14 2017-03-22 ABB Schweiz AG Actionneur basé sur bobine de thomson
EP3161846A1 (fr) 2014-06-30 2017-05-03 Scibreak AB Agencement, système et procédé d'interruption de courant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3913647A1 (fr) * 2020-05-22 2021-11-24 ABB Schweiz AG Système de commutation
WO2021234112A1 (fr) * 2020-05-22 2021-11-25 Abb Schweiz Ag Système de commutation

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