EP2775502B1 - Appareil de commutation pour la commutation d'un condensateur - Google Patents

Appareil de commutation pour la commutation d'un condensateur Download PDF

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Publication number
EP2775502B1
EP2775502B1 EP13158280.1A EP13158280A EP2775502B1 EP 2775502 B1 EP2775502 B1 EP 2775502B1 EP 13158280 A EP13158280 A EP 13158280A EP 2775502 B1 EP2775502 B1 EP 2775502B1
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EP
European Patent Office
Prior art keywords
contactor
coil
contact bridge
auxiliary switch
capacitor
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.)
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Application number
EP13158280.1A
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German (de)
English (en)
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EP2775502A1 (fr
Inventor
Bernhard Streich
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Siemens AG
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Siemens AG
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Publication date
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Priority to EP13158280.1A priority Critical patent/EP2775502B1/fr
Publication of EP2775502A1 publication Critical patent/EP2775502A1/fr
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Publication of EP2775502B1 publication Critical patent/EP2775502B1/fr
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Classifications

    • 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
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2025—Bridging contacts comprising two-parallel bridges
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/543—Auxiliary switch inserting resistor during closure of contactor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/68—Driving arrangements between movable part of magnetic circuit and contact with snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0066—Auxiliary contact devices

Definitions

  • the invention relates to a switching device for switching a capacitor with a contactor and an auxiliary switch connected to the contactor, wherein the auxiliary switch has a movably mounted auxiliary switch contact bridge and auxiliary switch fixed contacts and the contactor has a movably mounted contactor contact bridge and contactor fixed contacts. Furthermore, the invention relates to a method for connecting a downstream of the switching device capacitor to a supply network.
  • a capacitor or capacitors is usually initially charged via the leading auxiliary switch contact bridge of the auxiliary switch.
  • the auxiliary switch fixed contacts of the auxiliary switch are connected via resistance wires with the contactor fixed contacts of the contactor.
  • the auxiliary switch comprises auxiliary switch fixed contacts, the auxiliary switch contact bridge and an auxiliary switch contact bridge carrier, which supports the auxiliary switch contact bridge movable.
  • the contactor comprises contactor fixed contacts, the contactor contact bridge, a contactor contact bridge carrier, which movably supports the contactor contact bridge, and a coil. To close the contactor, energize the coil with a coil current.
  • the auxiliary switch is usually mechanically connected to the contactor, for example by means of a snap connection.
  • the auxiliary switch contact bridge carrier In the mechanically connected state of the auxiliary switch with the contactor, the auxiliary switch contact bridge carrier is in operative connection with the contactor contact bridge carrier such that when the contactor closes the auxiliary contact breaker bridge is also deflected via the mechanical deflection of the contactor contact bridge.
  • an electrically conductive connection between the auxiliary switch contact bridge is made with the auxiliary switch fixed contacts.
  • By the progressive Deflection of the contactor contact bridge is delayed in time for the electrical closing of the auxiliary switch made an electrically conductive connection between the contactor contact bridge with the contactor fixed contacts.
  • the contactor contact bridge carrier and hereby the auxiliary contact contact bridge carrier are deflected.
  • the auxiliary switch contact bridge makes electrical contact with the auxiliary switch fixed contacts, so that the current can flow via the resistance wires to the protective fixed contacts.
  • the capacitor is thus initially charged by the auxiliary switch. Due to the progressive deflection of the contactor contact bridge carrier, the contact of the contactor bridge, which is movably mounted, with the contactor fixed contacts occurs automatically. The bridging now takes place both via the contactor contact bridge and via the auxiliary contact breaker bridge.
  • the capacitor connected to the switching device can thus be supplied with energy via both the bridging of the auxiliary switch contact bridge with the auxiliary switch fixed contacts as well as the bridging of the contactor contact bridge with the contactor fixed contacts.
  • the primary energy profile to the capacitor takes place via the contactor.
  • Such a switching device is for example from the DE 10 2009 052 626 A1 known.
  • the time delay between the two switching operations is usually controlled by the staggered arrangement of the movably mounted contact bridges relative to the fixed contacts.
  • the time difference from closing the auxiliary switch contact bridge with the auxiliary switch fixed contacts to close the contactor contact bridge with the contactor fixed contacts can be different here.
  • the so-called pre-charging time of the capacitor is determined by the path difference between the contacts of the auxiliary switch and the contacts of the contactor and the closing speed of the contactor. Another influence is the bounce time of the auxiliary switch contacts If the pre-charging time is too short, the contactor contacts (contactor contact bridge and contactor fixed contacts) must take over a major part of the charging current for the capacitor. As a result, there is a lifetime reduction due to high consumption of contact material to the contactor contacts.
  • a contactor known which can take two switching positions. By energizing a first coil, a first switching position of the contactor is brought about. Due to the additional excitation of a second coil, a second switching position of the contactor is brought about. In this way, controlled an intermediate position, namely the first switching position, be brought to the contactor.
  • An object of the present invention is to provide an improved switching device for switching from a capacitor.
  • an optimized connection of a switching device connected downstream of the capacitor to a supply network to be made possible.
  • the auxiliary switch in particular mechanically connected to the contactor.
  • the auxiliary switch is connected to the contactor by means of a nondestructive mechanical connection, e.g. a snap connection.
  • the auxiliary switch fixed contacts with the contactor fixed contacts are preferably connected to each other at their input region and at their output region with a resistance wire.
  • the capacitor is charged via the auxiliary switch and then via the contactor, there is a beneficial gradual charging of the capacitor.
  • the capacitor is preloaded specifically for the first period of time via the auxiliary switch. After elapse of the first period of time, the contacting of the contactor contact bridge with the contactor fixed contacts, so that the power supply of the downstream capacitor is primarily via the contactor.
  • the contactor contact bridge is preferably contacted with the contactor fixed contacts via a separating means to disconnect the electrical contact between the auxiliary contact breaker contact and the auxiliary switch fixed contacts. Consequently, after disconnecting, the power supply of the capacitor takes place only via the contactor.
  • the advantage here is that it can no longer lead to an undesirable burden on the auxiliary switch.
  • the service life of the auxiliary switch can thereby be extended. Furthermore, their lifetime can be greatly extended, especially when using resistance wires. A burning of the resistance wires can be prevented by disconnecting the electrical power supply of the capacitor via the auxiliary switch, preferably immediately after contacting the contactor contact bridge with the contactor fixed contacts.
  • the coil In order to bring about and hold the first position, the coil is purposefully differently energized in comparison with the bringing about and holding of the second position by the control unit.
  • the first average coil current for inducing and holding the first position is thus different from the second average coil current, which serves to cause and hold the second position.
  • To bring about and hold the first position is preferably a clocked coil current.
  • the control unit By means of the control unit, the average coil current applied to the coil is consequently regulated, so that during the first time duration, which is preferably stored in the control unit, another average coil current and thus another excitation applied to the coil as in a second time period following the first time duration, in which the second position is brought about or held.
  • the control unit specifically controls the coil current present on the coil.
  • control device brings about the second position as soon as a preset voltage or current has been present or exceeded via the auxiliary switch fixed contacts. On the basis of this criterion, the first time duration would consequently be determined.
  • the advantage achieved by the invention is that regardless of a tolerance position of the contacts of the auxiliary switch and the contactor, the present temperature or the applied control voltage pre-charging of the downstream capacitor can be ensured via the auxiliary switch. In this way, an optimal pre-charging of the switching device downstream capacitor can be ensured by means of the auxiliary switch. Furthermore, the contacts of the auxiliary switch and the contactor are spared.
  • the first time duration is between 5 milliseconds and 30 milliseconds.
  • the first time period is between 15 milliseconds and 25 milliseconds, in particular about 20 milliseconds. Characterized in that the pre-charging of the capacitor by means of the auxiliary switch is independent of the tolerance position, the present temperature or the applied control voltage, a safe pre-charge of the switching device downstream of the capacitor can be ensured.
  • control device comprises a control unit and a switch, which is connected in series with the coil, so that the coil current of the coil can be controlled via it, wherein the control unit during the first period of time controls the switch in such a way, in particular clocks that only the first position is occupied by the excitation of the coil, and then controls the switch such that by means of the excitation of the coil, the second position is taken.
  • the supply of the coil with the coil current is selectively influenced in such a way that different excitations are present on the coil.
  • the coil is selectively energized so that only the first position is taken and held; i.e. The contactor contact bridge is not electrically connected to the contactor fixed contacts.
  • the coil is selectively energized so that the second position is taken and held; i.e. The contactor contact bridge is electrically connected to the contactor fixed contacts.
  • the first time period is preferably stored permanently in the control unit.
  • the voltage measuring control device comprises a shunt, which is arranged in series with the switch. There is thus a series connection of the coil, the switch and the shunt, over which the coil current of the coil can flow. Turning on the switch causes current to flow through the shunt causing a voltage drop across the shunt.
  • the control unit measures the voltage across the shunt and, depending on reaching a voltage threshold for the various excitation levels of the coil (excitation level for the first or second position), the switch is switched on and off in a certain rhythm.
  • There is a clocking By means of the clocking, a so-called average coil current is generated within the coil. As a function of this average coil current, a certain excitation is generated in the magnet system of the switching device, so that the first or second position can be deliberately brought about and held.
  • the control device is designed such that, in order to bring about the second position, it energizes the coil for a second time duration with a second average coil current and then energizes the coil with a third average coil current for holding the second position, the second average coil current is higher than the third average coil current.
  • the switch is controlled by the control device in such a way, in particular clocked that the coil is energized so that the switch of the contactor remains closed.
  • the third average coil current required for this purpose is preferably lower than the first average coil current required for bringing about and holding the first position.
  • a system which comprises a capacitor and the switching device, wherein the capacitor is electrically conductively connected to the switching device.
  • the capacitor can be switched by means of the switching device to a supply network.
  • a pre-charging of the capacitor After elapse of the first period of time is energized by the control device, the coil of the contactor such that the second position is taken, so that the capacitor is connected via the contactor to the supply network.
  • the auxiliary switch is mechanically connected to the contactor, so that the contactor contact bridge carrier can deflect the auxiliary switch contact bridge carrier.
  • the auxiliary switch contact bridge preferably by a first spring, movably mounted in the auxiliary switch contact bridge carrier and the contactor contact bridge, preferably by a second spring, movably mounted in the contactor contact bridge carrier.
  • the auxiliary switch fixed contacts with the contactor fixed contacts are each connected to each other at its input region and at its output region with a resistance wire. In this way, the capacitor can already be charged by closing the auxiliary switch contact bridge with the auxiliary switch fixed contacts.
  • FIG. 1 shows a schematic representation of a switching device for switching a capacitor in the open state.
  • the switching device has an auxiliary switch 1 and a contactor 2.
  • the auxiliary switch 1 is placed here on the contactor 2.
  • the auxiliary switch 1 consists of two auxiliary switch fixed contacts 4 and an auxiliary switch contact bridge carrier 5, which supports an auxiliary switch contact bridge 3 movable.
  • the auxiliary switch contact bridge carrier 5 is connected via a third spring 15 acted upon by pulling force.
  • the auxiliary switch contact bridge carrier 5 also has a first latching means 11.
  • the contactor consists of two contactor fixed contacts 7 and a contactor contact bridge carrier 8, which supports a contactor contact bridge 6 movably.
  • the contactor contact bridge carrier 8 also has a second latching means 12.
  • the contactor bridge carrier 8 is connected to a pressurized fourth spring 16.
  • the input side of the auxiliary switch fixed contact 4 is connected via a resistance wire 9 to the input side of the contactor fixed contact 7.
  • the output side of the auxiliary switch fixed contact 4 is connected via a resistance wire 9 to the output side of the contactor fixed contact 7.
  • the contactor contact bridge carrier 8 is mechanically connected by its second latching means 12 with the first latching means 11 of the auxiliary switch contact bridge carrier 5.
  • This mechanical connection 10 can be achieved by applying a predefined force without mechanical damage.
  • the contactor 2 in this case has a release agent 13.
  • This release agent 13 is intended to release the mechanical connection 10 between the first latching means 11 and the second latching means 12.
  • the separating means 13 has a bevel on which the auxiliary switch contact bridge carrier 5 is moved when the contactor 2 is switched on. Since the auxiliary switch contact bridge carrier 5 is connected to the contactor bridge carrier 8 with each other, when switching on the contactor 2 both contact bridge carrier 5, 8 are moved in the direction of the directional arrow 14.
  • the Indian FIG. 1 shown state of the switching device represents the start state of the switching device. In this case, the contactor 2 is turned off or opened.
  • the auxiliary contact contact bridge carrier 5 is moved against the separating means 13. Due to the further movement of the contactor contact bridge carrier 8 in the direction of the movement arrow 14, the force of the separating means 13 relative to the auxiliary switch contact bridge carrier 5 is increased until the mechanical connection 10 between the first latching means 11 and the second latching means 12 is released. The release of the mechanical connection 10 takes place only after an electrical contact of the contactor contact bridge 6 with the contactor fixed contacts 7 has taken place. Due to the tensile force of the third spring 15, the auxiliary switch contact bridge carrier 5 is now moved back into the starting state. The auxiliary switch contact bridge 3 thus triggers the contact with the auxiliary switch fixed contacts 4 and the electrical contact between the auxiliary switch fixed contacts 4 is interrupted.
  • FIG. 2 shows a schematic representation of a structure of a coil drive of the contactor FIG. 1 , A control voltage connection 17, a rectifier 18, a control unit 19, a coil 20 of the electromechanical drive of the contactor, a freewheeling diode 21, a switch 22 and a shunt 23 can be seen.
  • a command for switching on the switching device and thus for connecting the capacitor to a supply network to the switching device can be output by means of a decentralized to the switching device device unit.
  • a characteristic voltage is applied across the terminals of the control voltage terminal 17.
  • the voltage applied to the control voltage terminal 17 AC voltage is converted into DC voltage.
  • the control unit 19 detects such a state change at the control voltage terminal 17 and then initiates the stepwise switching on of the capacitor.
  • the capacitor is first selectively connected for a first period of time via the auxiliary switch with the supply network and connected after the lapse of the first period of time via the contactor with the supply network.
  • the coil 20 of the contactor is selectively energized differently.
  • the voltage supply of the control unit 19 via the voltage applied to the control voltage terminal 17 voltage.
  • FIG. 3 shows a time course of the average coil current, which is applied to the coil, the stepwise connection of a capacitor by means of the switching device after FIG. 1 ,
  • the coil control of the contactor corresponds to the in FIG. 2 Shown not final construction of the coil control of the contactor.
  • the ordinate 25 shows the height of the average coil current applied to the coil.
  • the time is shown on the abscissa 26. It is thus the time course of the average coil current and thus the excitation of the coil over time visible.
  • the control unit receives at time 24 the command to switch on the switching device and thus the command connecting the capacitor to the supply network.
  • the control unit controls the switch for a first time period 27, in particular for 20 milliseconds, such that the coil of the electromechanical drive of the contactor is energized such that the contactor contact carrier and thereby the auxiliary contact bridge carrier are deflected so that the first position brought and kept.
  • a first excitation is present at the coil, in which only the auxiliary switch contact bridge is electrically conductively connected to the auxiliary switch fixed contacts. In this state, the capacitor is pre-charged via the auxiliary contactor.
  • the control unit controls the switch for a second period of time 28, in particular for 30 milliseconds, such that the coil is energized such that the contactor contact bridge carrier is deflected so that the second position is brought about.
  • the second average coil current 32 necessary for establishing the second position is higher than the first average coil current 31 for inducing and holding the first position.
  • a second excitation is present at the coil, in which the contactor contact bridge is electrically conductively connected to the contactor fixed contacts.
  • the capacitor is now connected directly to the supply network via the contactor.
  • the first excitation of the coil is lower than the second excitation of the coil.
  • the controller Immediately after the second time period 28, the controller, for a third time period 28 until receiving a contactor opening signal 30, actuates the switch to energize the coil such that the contactor bridge carrier is deflected to hold the second position.
  • the third average coil current 33 necessary for holding the second position is lower than the first average coil current 31.
  • the third excitation of the coil is lower than the first and second excitation of the coil.
  • the switch Upon receiving the contactor opening signal 30, the switch is opened so that there is no energization of the coil.
  • the contactor automatically opens the electrically conductive connection between the contactor contact bridge and the contactor fixed contacts, so that the electrically conductive connection of the contactor Capacitor is completely disconnected from the supply network via the switching device.
  • the first average coil current 31 is the current applied as an arithmetic mean over the first time period 27 to the coil.
  • the second average coil current 32 is the current which is applied to the coil as an arithmetic mean over the second time period 28.
  • the third average coil current 33 is the current applied as an arithmetic mean over the third time period 29 to the coil.
  • the load can be very different, in particular for the contacts of the contactor. Furthermore, if the bounce times (increasing with increasing closing speed) of the precharging contacts of the auxiliary switch are considered, this becomes even less favorable for the contacts of the contactor. This reduces the service life and can lead to welding.
  • the precharge time is kept constant regardless of the rated voltage.
  • bounce times have no influence on the service life of the contacts of the contactor.
  • the contacts of the contactor always see a current that they can switch without welding.
  • a certain excitation on the part of the magnetic drive of the contactor is required.
  • This excitation is provided by current regulation via a shunt for a certain time (eg 20 milliseconds). Subsequently, the higher excitation of the coil to close the contacts of the contactor and the magnet system is provided. After the contactor and the magnet system have closed, the auxiliary switch disconnects (mechanically or magnetically) and the excitation of the magnet system is switched to hold (third excitation).
  • the different current values for the different ones Excitations are realized by shunt and threshold evaluation.
  • the threshold evaluation can be realized by a microcontroller or by a comparator circuit.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Relay Circuits (AREA)

Claims (7)

  1. Appareil de commutation pour la commutation d'un condensateur comprenant un contacteur (2) et un interrupteur (1) auxiliaire relié au contacteur (2), l'interrupteur (1) auxiliaire ayant des contacts (4) fixes, un pont (3) de contact et un porte-pont de contact (5), qui monte de manière mobile le pont (3) de contact, et le contacteur (2) ayant des contacts (7) fixes, un pont (6) de contact, un porte-pont de contact (8), qui monte de manière mobile le pont (6) de contact, et une bobine (20), le porte-pont de contact (5) de l'interrupteur auxiliaire étant en liaison active avec le porte-pont de contact (8) du contacteur et étant constitué de manière à ce que, lorsque le contacteur (2) est fermé, le pont de contact (3) de l'interrupteur auxiliaire et le pont de contact (6) du contacteur sont déviés d'abord dans une première position, dans laquelle seulement le pont de contact (3) de l'interrupteur auxiliaire est relié d'une manière conductrice de l'électricité aux contacts (4) fixes de l'interrupteur auxiliaire et sont déviés ensuite dans une deuxième position, dans laquelle le pont de contact (6) du contacteur est relié d'une manière conductrice de l'électricité aux contacts (7) fixes du contacteur, dans lequel, pour fermer le contacteur (2), la bobine (20) est excitée par un courant de bobine, caractérisé en ce que
    le contacteur (2) comprend un dispositif de commande, qui, pour fermer le contacteur (2), excite la bobine (20) pendant une première durée (27), de manière à prendre seulement la première position et excite ensuite la bobine (20), de manière à prendre la deuxième position.
  2. Appareil de commutation suivant la revendication 1, dans lequel la première durée (27) est comprise entre 2 millisecondes et 20 millisecondes.
  3. Appareil de commutation suivant l'une des revendications précédentes, dans lequel le dispositif de commande comprend une unité (19) de commande et un interrupteur (22), montés en série avec la bobine (20), de manière à pouvoir commander par lui le courant dans la bobine (20), l'unité (19) de commande commandant, notamment cadençant, l'interrupteur (22) pendant la première durée (27), de manière à ce que soit prise, au moyen de l'excitation de la bobine (20), seulement la première position et commandant ensuite l'interrupteur (22), de manière à ce que la deuxième position soit prise au moyen de l'excitation de la bobine (20).
  4. Appareil de commutation suivant la revendication 3, dans lequel le dispositif de commande comprend, pour la mesure de la tension, un shunt (23), qui est monté en série avec l'interrupteur (22).
  5. Appareil de commutation suivant l'une des revendications précédentes, dans lequel le dispositif de commande est constitué de manière à exciter, pour provoquer la deuxième position, la bobine (20) pendant une deuxième durée (28) par un deuxième courant (32) moyen de bobine et ensuite pour maintenir la deuxième position, à exciter la bobine (20) par un troisième courant (33) moyen de bobine, le deuxième courant (32) moyen de bobine étant plus intense que le troisième courant (33) moyen de bobine.
  6. Système pour la connexion d'un condensateur, comprenant un condensateur et un appareil de commutation suivant l'une des revendications 1 à 5, le condensateur étant relié d'une manière conductrice de l'électricité à l'appareil de commutation.
  7. Procédé de connexion d'un condensateur, monté en aval d'un appareil de commutation suivant l'une des revendications 1 à 5, à un réseau d'alimentation ayant les stades suivants :
    - excitation de la bobine (20) pendant une première durée (27) par un premier courant (31) moyen de bobine, de manière à relier, d'une manière conductrice de l'électricité, seulement le pont de contact (3) de l'interrupteur auxiliaire aux contacts (4) fixes de l'interrupteur auxiliaire,
    - excitation ensuite de la bobine (20) par un deuxième courant (32) moyen de bobine, de manière à relier d'une manière conductrice de l'électricité le pont de contact (6) du contacteur aux contacts (7) fixes du contacteur.
EP13158280.1A 2013-03-08 2013-03-08 Appareil de commutation pour la commutation d'un condensateur Active EP2775502B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13158280.1A EP2775502B1 (fr) 2013-03-08 2013-03-08 Appareil de commutation pour la commutation d'un condensateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13158280.1A EP2775502B1 (fr) 2013-03-08 2013-03-08 Appareil de commutation pour la commutation d'un condensateur

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EP2775502A1 EP2775502A1 (fr) 2014-09-10
EP2775502B1 true EP2775502B1 (fr) 2017-11-29

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EP3002769B1 (fr) * 2014-10-01 2017-06-14 Siemens Aktiengesellschaft Protection intégrée
US10153120B1 (en) 2015-04-24 2018-12-11 Abb Schweiz Ag Bypass switch comprising a movable member with a first conductive section and a second conductive section
DE102015119352B4 (de) * 2015-11-10 2018-06-07 Lisa Dräxlmaier GmbH Elektromechanischer schutzschalter
CN107204259B (zh) * 2016-03-18 2019-01-29 比亚迪股份有限公司 一种继电器
CN107204257B (zh) * 2016-03-18 2019-03-29 比亚迪股份有限公司 一种继电器

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DE1763462C3 (de) * 1968-06-01 1973-12-06 Siemens Ag, 1000 Berlin U. 8000 Muenchen Anordnung zur Storsignal Abgabe einer beliebigen Zahl von elektromag netisch steuerbaren Schützen
DE10009499C1 (de) * 2000-02-29 2001-09-27 Siemens Ag Hilfsbaugruppe für ein elektromechanisches Schaltgerät und hiermit korrespondierendes elektromechanisches Schaltgerät
DE102009052626A1 (de) 2009-11-10 2011-05-12 Siemens Aktiengesellschaft Schaltgerät zum Schalten eines Kondensators
DE102010032456B4 (de) * 2010-07-28 2012-11-29 Schaltbau Gmbh Elektrisches Schaltschütz

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