EP4659353A1 - Gleichspannungsschaltgerät, insbesondere zum unterbrechen eines stromflusses, und gleichspannungssystem - Google Patents
Gleichspannungsschaltgerät, insbesondere zum unterbrechen eines stromflusses, und gleichspannungssystemInfo
- Publication number
- EP4659353A1 EP4659353A1 EP24703114.9A EP24703114A EP4659353A1 EP 4659353 A1 EP4659353 A1 EP 4659353A1 EP 24703114 A EP24703114 A EP 24703114A EP 4659353 A1 EP4659353 A1 EP 4659353A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- switch
- current path
- voltage
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
- H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
- H03K17/08148—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in composite switches
-
- 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
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
- H02H3/023—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting
-
- 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
- H02H3/08—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 responsive to excess current
- H02H3/087—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 responsive to excess current for DC applications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for DC systems
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
- H03K17/6874—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor in a symmetrical configuration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0009—AC switches, i.e. delivering AC power to a load
Definitions
- the invention relates to a DC switching device which can in particular interrupt an electrical current flow between the input side and the output side of the DC switching device or between two DC devices.
- the invention further relates to a DC system which has such a DC device.
- an electronic switch for interrupting a current flow is known from EP 3 891 890 B1.
- a load capable of regenerating energy can be connected to a second and fourth connection on the electronic switch, while an energy source can be connected to a first and third connection.
- the electronic switch also has two anti-serially connected semiconductor switches to enable bi-directional switching off of the electronic switch. Two fuses are connected in series with the two semiconductor switches, with the two semiconductor switches being arranged between the two fuses. The two fuses serve to protect the load, the energy source or the switching device itself if a short-circuit current occurs.
- two short-circuiters which can be designed as thyristors, are connected to the fuses in such a way that a series connection of a fuse and a short-circuiter is located between the first and third connection and between the second and fourth connection.
- the present invention is based on the object of creating a DC switching device, in particular for interrupting a current flow, and a DC voltage system which can be constructed with fewer components and thus more cost-effectively than the known electronic switch while providing reliable short-circuit resistance.
- a core idea of the invention can be seen in the provision of a DC switching device which requires only a single short-circuit switch, even if the DC switching device can be operated in both current directions.
- a DC switching device in particular for interrupting a current flow, which can have, for example, the following features:
- a current detection device which is designed to measure the current intensity of a current flowing through the first or second current path
- an anti-serial circuit arranged in the first current path, which has a first controllable semiconductor switch and a second controllable semiconductor switch connected anti-serially thereto, wherein a first diode is connected anti-parallel to the first semiconductor switch and a second diode is connected anti-parallel to the second semiconductor switch, wherein the first electrical fuse and the anti-serial circuit are connected in series,
- a single controllable short-circuit switch having a first terminal and a second terminal, wherein the first terminal is electrically connected to the first current path and arranged between the first device terminal and the first electrical fuse, and the second terminal is electrically connected to the second current path and arranged between the fourth device terminal and the second electrical fuse,
- control and evaluation device which is connected to the current detection device, wherein the control and evaluation device is designed to switch on or close the single short-circuit switch when the current intensity measured by the current detection device reaches or exceeds a predetermined threshold value, wherein in the switched-on state the single short-circuit switch is connected in series with either the first or the second fuse depending on the direction of the current flowing through the two current paths.
- a DC switching device in particular for interrupting a current flow, which can have, for example, the following features:
- a current detection device which is designed to measure the current intensity of a current flowing through the first or second current path
- an anti-serial circuit arranged in the second current path, which has a first controllable semiconductor switch and a second controllable semiconductor switch connected anti-serially thereto, wherein a first diode is connected anti-parallel to the first semiconductor switch and a second diode is connected anti-parallel to the second semiconductor switch, wherein the second electrical fuse and the anti-serial circuit are connected in series,
- a single controllable short-circuit switch having a first terminal and a second terminal, the first terminal being electrically connected to the first current path and arranged between the second device terminal and the first electrical fuse, and the second terminal being electrically connected to the second current path and arranged between the third device terminal and the second electrical fuse,
- control and evaluation device which is connected to the current detection device, wherein the control and evaluation device is designed to switch on or close the single short-circuit switch when the current intensity measured by the current detection device reaches or exceeds a predetermined threshold value, wherein in the switched-on state of the The only short-circuit switch is connected in series with either the first or the second fuse, depending on the direction of the current flowing through the two current paths.
- control and evaluation device is implemented as a microcontroller, microprocessor or as an analog circuit.
- the short-circuit switch can, for example, be designed as a thyristor or triac with a bidirectional current flow.
- an electromechanical switch with a mechanical switching contact can be provided, wherein the mechanical switching contact is connected in parallel to the first and second semiconductor switches, wherein the control and evaluation device is designed to control the electromechanical switch.
- the control and evaluation device preferably ensures that during a switch-on process the two semiconductor switches are first switched on and then the mechanical switching contact is closed.
- a DC voltage supply device can be connected to the first and third device connection and an electrical device can be connected to the second and fourth device connection, or vice versa.
- the electrical device can be a non-regenerative electrical device, such as an ohmic resistor, a regenerative electrical device or another DC voltage supply device.
- the DC voltage supply device can be, for example, a DC supply network.
- the current detection device can, for example, have a current sensor or magnetic field sensor. Furthermore, the current detection device can be connected directly into the respective current path. Alternatively, the current detection device can have a shunt resistor and be designed to measure a voltage at the Shunt resistance and its polarity in order to determine the current flowing through the respective current path and its direction.
- the current detection device can be connected in series with the first or the second fuse.
- a direct current system which can comprise the direct current device described above.
- a direct current supply device and an electrical device for example an electrical device capable of regenerative power, can be connected to the direct current device.
- the direct current supply device can be, for example, a grounded direct current source with a positive pole and a ground connection, a DC supply network or a direct current bus.
- the first and second device connections each serve as a positive pole and the third and fourth device connections each serve as a negative pole or ground connection.
- the control and evaluation device of the DC switching device is designed, for example, to first control the first semiconductor switch to be conductive, particularly during a switch-on process, and at the same time to keep the second semiconductor switch blocked and then to close the mechanical switching contact when a current is to flow from the first device connection to the third device connection, and, when the current strength measured by the current detection device reaches or exceeds the predetermined threshold value, to close the first short-circuit switch.
- This is preferably the case when a DC voltage supply device is connected to the first and third device connections and an electrical load that is not capable of regenerative power is connected to the second and fourth device connections.
- the control and evaluation device can also be designed to first control the second semiconductor switch to be conductive and at the same time to keep the first semiconductor switch blocked and then to close the mechanical switching contact when a current is to flow from the second device connection to the fourth device connection and, when the current intensity measured by the current detection device reaches or exceeds the predetermined threshold value, to close the second short-circuit switch. This is preferably the case when an electrical load that is not capable of regenerative power is connected to the first and third device connection and a DC voltage supply device is connected to the second and fourth device connection.
- the first and second semiconductor switches are preferably switched on at the same time. This is particularly useful if, for example, a DC voltage supply device is connected to the first and third device connection and a regenerative electrical load or a second DC voltage supply device is connected to the second and fourth device connection, since the current direction is not fixed.
- Fig. 1 is a circuit diagram of an exemplary DC switching device
- Fig. 2 is an alternative circuit diagram of an exemplary DC switching device.
- Fig. 1 shows the circuit diagram of an exemplary DC voltage system 5, which has an exemplary DC voltage switching device 10.
- the DC voltage switching device 10 has a first and a third device connection 11, 12, to which a DC voltage supply device 100 can be connected. Furthermore, the DC voltage device 10 has a second and a fourth device connection 13, 14, to which an electrical device 90 can be connected. It should be noted that the electrical Device 90 can also be connected to the device connections 11 and 12 and the DC voltage supply device 100 can be connected to the device connections 13 and 14.
- the DC voltage supply device 100 can be, for example, a grounded DC voltage source with a positive pole and a ground connection, a DC supply network or a DC voltage bus.
- the electrical device 90 can be designed, for example, as a regenerative or non-regenerative DC voltage load 90 or another DC voltage supply device.
- a first current path 1 runs between the first device connection 11 and the second device connection 13.
- An anti-serial circuit 60 and an electrical fuse 20 connected in series with it are connected in the current path 1.
- the 60 has a first controllable semiconductor switch 61 and a second controllable semiconductor switch 62, which is connected anti-serially to the first semiconductor switch 61.
- a first diode 70 is connected anti-parallel to the first semiconductor switch 61 and a second diode 71 is connected anti-parallel to the second semiconductor switch 62.
- the two semiconductor switches 61, 62 can be designed, for example, as field-effect transistors or as bipolar transistors with an insulated gate electrode (IGBT). In the present example, the two semiconductor switches are
- the electrical fuse 20 is arranged between the collector electrode of the semiconductor switch 61 and the device connection 11, while the collector electrode of the semiconductor switch 62 can be connected directly to the device connection 13.
- a current detection device 30 can be arranged between the fuse 20 and the collector connection of the semiconductor switch 61, as shown by way of example in Fig.
- the current detection device 30 can be connected in series with the fuse 20 in the first current path 1. However, the current detection device 30 can be connected at any point in the first or second current path 1, 2.
- the current detection device 30 can also have a shunt resistor connected in the first or second current path (not shown). In this case, the current detection device is designed to detect a voltage at the shunt resistor and its polarity in order to determine therefrom the current flowing through the respective current path and its direction.
- the current detection device 30 is designed to determine the current intensity of a direct current flowing through the current paths 1 and 2 in order to detect a short-circuit current.
- the emitter electrodes of the two semiconductor switches 61 and 62 form a common connection point.
- the cathode of the diode 70 is connected to the collector electrode of the semiconductor switch 61, while the anode of the diode 70 is connected to the emitter electrode of the semiconductor switch 61.
- the cathode of the diode 71 is connected to the collector electrode of the semiconductor switch 62, while the anode of the diode 71 is connected to the emitter electrode of the semiconductor switch 62.
- the gate electrodes of the semiconductor switches 61 and 62 are each connected to an input of a control and evaluation device 40, which can be designed as a microcontroller, for example.
- the control and evaluation device 40 is also connected on the input side to the current detection device 30.
- a second current path 2 runs between the third device connection 12 and the fourth device connection 14, into which only one electrical fuse 21 is connected in the embodiment shown.
- no semiconductor switches are implemented in the second current path 2.
- the exemplary connection of the two semiconductor switches 61 and 62 as well as the two diodes 70 and 71 ensures that a) when the first semiconductor switch 61 is electrically conductive and the second semiconductor switch 62 is simultaneously electrically blocked, a current can flow from the device connection 11 via the fuse 20, the current detection device 30, the first semiconductor switch 61, the diode 71, the load 90, and the fuse 21 to the device connection 12, or that, b) when the second semiconductor switch 62 is electrically conductive and the first semiconductor switch 61 is simultaneously electrically blocked, a current can flow from the device connection 13 via the second semiconductor switch 62, the diode 70, the current detection device 30, the fuse 20, the device connections 11 and 12, and the fuse 21 to the device connection 14.
- a mechanical switching contact 81 of an electromechanical switch 80 can be connected in parallel to the first and second semiconductor switches 61, 62.
- the electromechanical switch 80 can be designed as a relay.
- the electromechanical switch 80 has an excitation coil 82, which can be connected to the control and evaluation device 40, as shown in Fig. 1.
- the excitation coil 82 is located in a control circuit that can be controlled by the control and evaluation device 40 to open and close accordingly in order to be able to open or close the mechanical switching contact 81.
- the mechanical switching contact 81 is designed, for example, as a normally open contact.
- the DC voltage switching device 10 also has a single controllable short-circuit switch 50 with a first connection 50a, which is designed as an anode connection, and a second connection 50b, which is designed as a cathode connection.
- the first connection 50a is electrically connected to the first current path 1 and is arranged between the first device connection 11 and the first electrical fuse 20.
- the second connection 50b is electrically connected to the second current path 2 and is arranged between the fourth device connection 14 and the second electrical fuse 21.
- the short-circuit switch 50 also has a control connection, which is connected to an output of the control and evaluation device 40.
- Fig. 2 shows the circuit diagram of another exemplary DC voltage system 5', which has an exemplary DC voltage switching device 10'.
- a first current path 1 runs between the first device connection 11 and the second device connection 13, into which only one electrical fuse 20 is connected in the embodiment shown. No semiconductor switches are implemented in the current path 1.
- a second current path 2 runs between the third device connection 13 and the fourth device connection 14.
- An anti-serial circuit 60 and an electrical fuse 21 connected in series with it are connected in the current path 2.
- the 60 has a first controllable semiconductor switch 61 and a second controllable semiconductor switch 62, which is connected anti-serially to the first semiconductor switch 61.
- a first diode 70 is connected anti-parallel to the first semiconductor switch 61 and a second diode 71 is connected anti-parallel to the second semiconductor switch 62.
- the two semiconductor switches 61, 62 can be designed, for example, as field-effect transistors or as bipolar transistors with an insulated gate electrode (IGBT). In the present example, the two semiconductor switches are
- 61 and 62 are each implemented as an n-channel IGBT transistor.
- the electrical fuse 21 is connected between the collector electrode of the semiconductor switch 62 and the device connection 12, while the collector electrode of the
- Semiconductor switch 61 can be directly connected to the device connection 14.
- a current detection device 30 can be arranged between the fuse 21 and the collector connection of the semiconductor switch 62, as shown by way of example in Fig. 2. According to the exemplary embodiment shown, the current detection device 30 can be connected in series with the fuse 21 in the second current path 2. However, the current detection device 30 can be connected at any point in the first or second current path 1, 2. For example, the current detection device 30 can also have a shunt resistor connected in the first or second current path (not shown). In this case, the current detection device is designed to detect a voltage at the shunt resistor and its polarity in order to determine the current flowing through the respective current path and its direction. Current detection deviceIt is only important that the current detection device 30, however it is implemented, is designed to determine the current intensity of a direct current flowing through the current paths 1 and 2 in order to detect a short-circuit current.
- the emitter electrodes of the two semiconductor switches 61 and 62 form a common connection point.
- the cathode of the diode 70 is connected to the collector electrode of the semiconductor switch 61, while the anode of the diode 70 is connected to the emitter electrode of the semiconductor switch 61.
- the cathode of the diode 10 is connected to the collector electrode of the semiconductor switch 62, while the anode of the diode 71 is connected to the emitter electrode of the semiconductor switch 62.
- the gate electrodes of the semiconductor switches 61 and 62 are each connected to an input of a control and evaluation device 40, which can be designed as a microcontroller, for example.
- the control and evaluation device 40 is also connected on the input side to the current detection device 30.
- the exemplary interconnection of the two semiconductor switches 61 and 62 and the two diodes 70 and 71 in turn ensures that a) when the first semiconductor switch 61 is electrically conductive and the second semiconductor switch 62 is simultaneously controlled to be electrically blocking, a current can flow from the device connection 11 via the fuse 20, the load 90, the first semiconductor switch 61, the diode 71, the current detection device 30 and the fuse 21 to the device connection 12, or that b) when the second semiconductor switch 62 is electrically conductive and the first semiconductor switch 61 is simultaneously controlled to be electrically blocking, a current can flow from the device connection 13 via the fuse 20, the device connections 11 and 12, the fuse 21, the current detection device 30, the second semiconductor switch 62 and the diode 70 to the device connection 14.
- a mechanical switching contact 81 of an electromechanical switch 80 can be connected in parallel to the first and second semiconductor switches 61, 62.
- the electromechanical switch 80 can be designed as a relay.
- the electromechanical switch 80 has an excitation coil 82, which can be connected to the control and evaluation device 40, as shown in Fig. 1.
- the excitation coil 82 is located in a control circuit that can be controlled by the control and evaluation device 40 to open and close accordingly in order to be able to open or close the mechanical switching contact 81.
- the mechanical switching contact 81 is designed, for example, as a normally open contact.
- the DC voltage switching device 10 has a single controllable short-circuit switch 50 with a first connection 50a, which is designed as an anode connection, and a second connection 50b, which is designed as a cathode connection.
- the first connection 50a is electrically connected to the first current path 1 and between the second device connection 13 and the first electrical Fuse 20 is arranged.
- the second connection 50b is electrically connected to the second current path 2 and is arranged between the third device connection 12 and the second electrical fuse 21.
- the short-circuit switch 50 also has a control connection which is connected to an output of the control and evaluation device 40.
- a predetermined threshold value that defines a short-circuit current is preferably stored in each of the direct voltage devices 10 and 10'.
- the control and evaluation device 40 preferably has a memory in which the predetermined threshold value is stored.
- the predetermined threshold value can also be stored in a separate memory that the control and evaluation device 40 can access.
- the device connections 11 and 13 can function as positive poles, in which case current path 1 functions as the positive conductor.
- the device connections 12 and 14 can function as negative poles or ground connections, in which case current path 2 functions as the negative conductor or ground line.
- the control and evaluation device 40 is therefore designed to control a switch-on process by first switching the semiconductor switch 61 electrically conductive and the semiconductor switch 62 electrically blocking. At this moment, a direct current flows from the direct voltage supply device 100 via the device connection 11, the semiconductor transistor 61, the diode 71, through the load 90 and via the device connection 12 back to the direct voltage supply device 100. If the electromechanical switch 80 is implemented, the control and evaluation device 40 causes the DC switching device 10 to close the mechanical switching contact 81 after a definable period of time after the semiconductor switch 61 has been switched to conduct. The direction and the current intensity of the direct current are preferably continuously determined by the current determination device 30 and transmitted to the control and evaluation device 40.
- both the semiconductor switch 61 would have to be switched to blocking and, if present, the mechanical switching contact 81 would have to be opened.
- the reaction time of the electromechanical switch 80 to open the mechanical switching contact 81 is too long to ensure reliable short-circuit resistance. Thanks to the inventive measure, however, sufficient short-circuit resistance can now be ensured, particularly when using an electromechanical switch.
- the control and evaluation device 40 recognizes the occurrence of a short circuit because the direct current measured by the current detection device 30 reaches or exceeds the predetermined threshold value. In response to this, the control and evaluation device 40 causes the direct current switching device 10 to switch on or close the short-circuit switch 50. From this moment on, the short-circuit current flows from the device connection 11 via the short-circuit switch 50, the fuse 21 to the device connection 12, which triggers the fuse 21. When switched on, the only short-circuit switch 50 is now connected in series with the fuse 21.
- a switch-on process of the DC voltage switching device 10 takes place as follows:
- the control and evaluation device 40 is now designed to control a switch-on process by first switching the semiconductor switch 62 electrically conductive and the semiconductor switch 61 electrically blocking. At this moment, a direct current flows from the direct voltage supply device 100 via the device connection 13, the semiconductor transistor 62, the diode 70 through the load 90 and via the device connection 14 back to the direct voltage supply device 100.
- control and evaluation device 40 causes the direct voltage switching device 10 to close the mechanical switching contact 81 after a definable period of time after the semiconductor switch 62 has been switched conductive.
- the current intensity of the direct current is preferably continuously determined by the current determination device 30 and transmitted to the control and evaluation device 40.
- the control and evaluation device 40 recognizes the occurrence of a short circuit because the direct current measured by the current detection device 30 reaches or exceeds the predetermined threshold value. In response to this, the control and evaluation device 40 causes the direct current switching device 10 to switch on the short-circuit switch 50. From this moment on, the short-circuit current flows from the device connection 13, via the semiconductor switch 62, the diode 70, the current detection device 30, the fuse 20, the short-circuit switch 50 back to the device connection 14, whereby the fuse 20 is triggered. In the switched-on state, the only short-circuit switch 50 is now connected in series with the fuse 20.
- the load on current paths 1 and 2 and possible connecting cables can be reduced in the event of a short circuit.
- the rated current and overload current of the short-circuit switch 50, the semiconductor switches 61, 62 and the diodes 70, 71 as well as the electromechanical switch 80 are advantageously to be matched to the rated current (ie the tripping characteristic) of the fuses 20 and 21.
- the mode of operation of the DC switching device 10' essentially corresponds to the mode of operation of the DC switching device 10, so that in order to avoid repetition, reference is made to the explanations regarding the DC switching device 10.
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE20235061A BE1031306B1 (de) | 2023-01-31 | 2023-01-31 | Gleichspannungsschaltgerät, insbesondere zum Unterbrechen eines Stromflusses, und Gleichspannungssystem |
| PCT/EP2024/051916 WO2024160675A1 (de) | 2023-01-31 | 2024-01-26 | Gleichspannungsschaltgerät, insbesondere zum unterbrechen eines stromflusses, und gleichspannungssystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4659353A1 true EP4659353A1 (de) | 2025-12-10 |
Family
ID=85251697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24703114.9A Pending EP4659353A1 (de) | 2023-01-31 | 2024-01-26 | Gleichspannungsschaltgerät, insbesondere zum unterbrechen eines stromflusses, und gleichspannungssystem |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4659353A1 (de) |
| BE (1) | BE1031306B1 (de) |
| WO (1) | WO2024160675A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2233194C3 (de) * | 1972-07-06 | 1981-12-10 | Anthony's Manufacturing Co., Inc., San Fernando, Calif. | Berührungsschutzschaltung für zerbrechliche Scheiben |
| GB201610901D0 (en) * | 2016-06-22 | 2016-08-03 | Eaton Ind Austria Gmbh | Hybrid DC circuit breaker |
| EP3691127A1 (de) * | 2019-01-31 | 2020-08-05 | Siemens Aktiengesellschaft | Sicherer elektronischer schalter |
-
2023
- 2023-01-31 BE BE20235061A patent/BE1031306B1/de not_active IP Right Cessation
-
2024
- 2024-01-26 EP EP24703114.9A patent/EP4659353A1/de active Pending
- 2024-01-26 WO PCT/EP2024/051916 patent/WO2024160675A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| BE1031306B1 (de) | 2024-09-03 |
| BE1031306A1 (de) | 2024-08-27 |
| WO2024160675A1 (de) | 2024-08-08 |
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