EP4200949A1 - Hochspannungs-gleichstrom-schaltanlage und deren verwendung sowie verfahren zum schalten von gleichspannungen - Google Patents
Hochspannungs-gleichstrom-schaltanlage und deren verwendung sowie verfahren zum schalten von gleichspannungenInfo
- Publication number
- EP4200949A1 EP4200949A1 EP21773790.7A EP21773790A EP4200949A1 EP 4200949 A1 EP4200949 A1 EP 4200949A1 EP 21773790 A EP21773790 A EP 21773790A EP 4200949 A1 EP4200949 A1 EP 4200949A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- busbar
- currents
- direct current
- voltage direct
- fault
- 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
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
Definitions
- the invention relates to a high-voltage direct-current switchgear and its use, as well as a method for switching direct voltages in the high-voltage range, with at least one busbar for load currents and with at least one busbar for currents in the event of a fault, and with at least two outgoing lines, with a high-voltage -DC circuit breaker is included.
- High-voltage direct current transmission networks i. H .
- HVDC networks are used to transmit large amounts of electrical power, e.g. B. up to a few gigawatts, with voltages of up to 1100 kV DC voltage and currents in the kA range. A transmission over long distances, e.g. B. up to thousands of kilometers possible with low electrical losses.
- three-phase alternating current networks which require at least three electrical conductors, only two conductors are required in direct current networks, and only one conductor is required in connection with the earth for energy transmission.
- HVDC lines can transmit significantly more power than AC systems, which is why HVDC routes can be designed much narrower for the same power.
- HVDC lines are not only well suited to transmit high power as overhead lines, they can also be used to advantage in underwater cables.
- Off-shore wind turbines can be connected to the on-shore power grid.
- Asynchronous networks and networks with different frequencies can also be connected via high-voltage direct current lines.
- High-voltage direct current switchgear which high-voltage direct current Include circuit breakers are designed to switch multiple electrical lines individually, d. H . to switch the same number of lines as high-voltage direct current circuit breakers are included in the high-voltage direct current switchgear.
- the high-voltage direct current circuit breakers required for switching are not yet commercially available. So far, these have only been built as prototypes in various test facilities. Due to the technical requirements for the high-voltage direct current circuit breakers, such as e.g. B. a high dielectric strength, a high current carrying capacity and a high current switching capacity as well as a high switching speed, the high-voltage direct current circuit breakers are very large, especially in the dimensions of a hall, complex to produce and expensive.
- high-voltage direct-current switchgear known from the prior art comprise a plurality of high-voltage direct-current circuit breakers, i. H . at least one high-voltage direct current circuit breaker for each line to be switched.
- large, branched high-voltage direct current networks are technically difficult to implement, complex and expensive.
- Necessary high-voltage DC switchgear for switching several outgoing DC lines in particular, each with at least one high-voltage DC circuit breaker for each line are space-consuming, expensive and technically difficult to implement.
- the object of the present invention is to specify a high-voltage direct current switchgear and its use as well as a method for switching direct voltages in the high-voltage range, in particular in a high-voltage direct current switchgear described above, which solve the problems described above.
- it is the task of specify ne high-voltage direct current switchgear, which is constructed to save space, is technically simple and inexpensive, and can switch several electrical direct current lines individually, particularly in the event of a fault.
- a high-voltage direct current switchgear with the features according to patent claim 1, a method for switching direct voltages in the high-voltage range, in particular in a high-voltage direct current switchgear described above, according to patent claim 6 and a use of the high-voltage switchgear described above DC switchgear according to claim 13 solved.
- Advantageous configurations of the high-voltage direct-current switchgear according to the invention and/or the method according to the invention for switching direct voltages in the high-voltage range, in particular in a high-voltage direct-current switchgear described above, and the use according to the invention of the high-voltage direct-current switchgear described above are described in the Subclaims specified. Objects of the main claims can be combined with one another and with features of the subclaims, and features of the subclaims can be combined with one another.
- a high-voltage direct current switchgear comprises at least one busbar for load current or Load currents and at least one busbar for current or Currents in the event of an error, as well as at least two outgoing lines.
- At least one high-voltage direct current circuit breaker is included in the high-voltage direct current switchgear.
- At least two commutation switches are included, which are each connected between the at least one busbar for load currents and at least one outgoing line, and at least two commutation switches are included, which are each connected between the at least one busbar for currents in the event of a fault and at least one outgoing line .
- the at least one high-voltage Voltage DC circuit breaker is connected between the at least one busbar for load currents and the at least one busbar for currents in the event of a fault.
- the structure of the high-voltage direct current switchgear according to the invention described above means that several electrical direct current lines can be switched individually using only a few high-voltage direct current circuit breakers, in particular only one high-voltage direct current circuit breaker.
- the high-voltage direct current circuit breaker installed in particular in the high-voltage direct current switchgear is switched into the current path to be switched via various auxiliary switching devices, particularly in the event of a fault on a line, and can then switch off the current there, in particular the residual current.
- a space-saving, technically simple and cost-effective high-voltage direct-current switchgear is specified, which is designed, in particular, for the individual switching of a plurality of electrical direct-current lines.
- the additionally required commutation switches are significantly smaller and cheaper than corresponding high-voltage direct current circuit breakers, which means that the structure described for the high-voltage direct current switchgear according to the invention already has cost advantages with only two lines, which increase with more lines.
- the high-voltage direct current switchgear according to the invention is light and inexpensive, scalable with little space requirement.
- the alternative known from the prior art, requires each line or j e outgoing electrical direct current line to use a high-voltage direct current circuit breaker, which is associated with high costs per line, high space requirements and high complexity.
- the at least one high-voltage DC circuit breaker and at least one commutating switch can be parallel between the at least one busbar for load currents and the at least one busbar for Currents to be switched in the event of a fault. This enables power supply to the at least one busbar for currents in the event of a fault when switching the high-voltage DC switchgear according to the invention via the at least one busbar for load currents.
- Precisely one high-voltage direct current circuit breaker can be included in the high-voltage direct current switchgear according to the invention.
- the previously mentioned advantages are thus implemented in a particularly pronounced manner. Using only one high voltage DC circuit breaker for multiple lines results in a large reduction in cost, space and complexity.
- the number of high-voltage direct current circuit breakers that can be included in the high-voltage direct current switchgear can be less than the number of outgoing lines. The advantages mentioned above are thus possible.
- the use of fewer high voltage DC circuit breakers than outgoing lines involved results in a reduction in cost, space and complexity.
- the high-voltage direct current switchgear can be designed to switch voltages in the range of up to 1100 kV direct voltage and/or currents in the range of up to a few kiloamperes.
- high-voltage direct current circuit breakers for high voltage levels in particular for voltages in the range of up to 1100 kV and/or currents in the range of up to a few kiloamperes, are technically difficult to implement, expensive, complex and take up a lot of space.
- a method for switching DC voltages in the high-voltage range, in particular in an above-described high-voltage DC switchgear includes that in normal operation, with load flow on at least two outgoing lines, at least two commutation switches are used in the switched-on state, with each of the commutation switches between the at least one busbar for currents in the event of a fault and one outgoing line each is used, and at least two commutation switches are used in the switched-on state, each of the commutation switches being used between the at least one busbar for load currents and one outgoing line each, and a high voltage -DC circuit breaker is used between the at least one busbar for load currents and the at least one busbar for currents in the event of a fault in the off state, and in particular a commutation switch Holder is used between at least one busbar for load currents and at least one busbar for currents in the event of a fault when switched on.
- the high-voltage direct current circuit breaker can be switched on between the at least one busbar for load currents and the at least one busbar for currents in the event of a fault, and all commutation switches between the at least one busbar for currents in the event of a fault and the outgoing ones Lines which are not faulty can be switched off, and all commutation switches between the at least one load current busbar and the outgoing lines which are faulty can be switched off, and in particular the commutation switch between the at least one load current busbar and the at least one busbar for currents in the event of a fault can be switched off.
- the high-voltage direct current circuit breaker between the at least one busbar for load currents and the at least one busbar for currents in the event of a fault can, in particular in a subsequent step, be switched off, in particular as soon as all outgoing lines that are faulty exclusively via the at least one busbar are electrically supplied for currents in the event of a fault, and all outgoing lines, which are not faulty, are electrically supplied exclusively via the at least one busbar for load currents.
- the switching steps described above can in particular take place in the specified order. This enables faulty lines to be switched off safely and without errors using only one and/or a few high-voltage direct current circuit breakers, i . H . with fewer high-voltage DC circuit breakers than outgoing lines.
- Precisely one high-voltage direct current circuit breaker can be used to switch at least two, in particular three or more, outgoing lines. This means that switching, in particular switching off faulty or faulty lines particularly easily and inexpensively possible with a spatially small space-consuming high-voltage direct current switchgear.
- the high-voltage direct current circuit breaker can be used to switch off a fault on at least one, in particular more than one, of the outgoing lines.
- the individual lines with errors, in particular all lines with errors can be switched off individually or simultaneously .
- a use according to the invention of an above-described high-voltage direct-current switchgear can include faults on direct-current lines in a direct-current network being switched off and lines without faults in the direct-current network remaining switched on, in particular using exactly one high-voltage direct-current power switch.
- FIGS. 1 to 4 An exemplary embodiment of the invention is shown schematically below in FIGS. 1 to 4 and described in more detail below.
- Figure 1 shows a circuit diagram of the high-voltage DC switchgear 1 according to the invention, with a busbar 3 for load currents and with a busbar 2 for currents in the event of a fault and with four outgoing lines 4, 5, 6, 7, with a high-voltage DC circuit breaker 8 and Commutation switches 9, 10, 11 are included for switching the outgoing lines 4, 5, 6, 7, and the
- FIG. 1 shows the circuit diagram of the high-voltage direct current switchgear 1 of Figure 1, with the associated Switch positions 8, 9, 10, 11 in normal operation, with load flow on three lines 4, 5, 6, and the
- Figure 3 shows the circuit diagram of the high-voltage direct current switchgear 1 of Figure 2, with a fault on a line 5, the high-voltage direct current circuit breaker 8 being switched on, the commutation switch 11 and the commutation switch 9 of the faulty line 5 and the commutation switch 10 of the error-free lines 4 and 6 are switched off or. are, and the
- FIG. 4 shows the circuit diagram of the high-voltage direct-current switchgear 1 of FIG.
- FIG. 1 shows a circuit diagram of the high-voltage DC switchgear 1 according to the invention, with a busbar 3 for load currents and with a busbar 2 for currents in the event of a fault, and with four outgoing lines 4, 5, 6, 7, for example.
- the high-voltage DC switchgear 1 includes a high-voltage DC circuit breaker 8 and a commutating switch 11 connected in parallel between the busbar 3 for load currents and the busbar 2 for currents in the event of a fault.
- Each outgoing line 4 , 5 , 6 , 7 is connected to the busbar 3 for load currents via a commutation switch 9 and to the busbar 2 for currents in the event of a fault via a commutation switch 10 . All switches are shown open in FIG.
- the busbar 3 for load currents is z. B. connected to a voltage source for direct currents, in particular a battery, a generator and/or rectifier.
- a voltage source for direct currents in particular a battery, a generator and/or rectifier.
- FIG. 1 an exemplary embodiment is shown with a state of the switchgear 1, in which the busbar 2 for currents in the event of an error, e.g. B. is de-energized without electrical connection to a voltage source.
- the busbar 2 for currents in the event of a fault to a separate voltage source for DC voltages, in particular with the same voltage as z. B. busbar 3 for load currents, be connected, which can be switched off separately, z. B. by shutting down a separate generator.
- the outgoing lines 4, 5, 6, 7 are, in the example of FIG.
- FIG. 2 shows a circuit diagram of the high-voltage direct current switchgear 1 of FIG. 1 in normal operation, e.g. B. with load flow on three lines 4, 5, 6.
- the three lines 4, 5, and 6 are each connected electrically via a commutation switch 10 assigned to the respective line 4, 5, 6, which are all in the closed state, to the busbar 2 for currents in the event of a fault and thus carry current.
- FIG. 3 shows the circuit diagram of the high-voltage direct-current switchgear 1 of FIG. 2 with a fault, for example on a line 5 .
- other lines can gene, e.g. B.
- Line 4 or 6 or more than one line 4 , 5 , 6 have a fault .
- the invention is described below as an example for a line 5 with a fault.
- Line 5 can be switched off, in particular when the error occurs on line 5, or when there is no error for other reasons.
- the synonym error is also used for other reasons for the shutdown.
- Defective in the context of the invention includes defective, ie. H .
- the high-voltage direct current circuit breaker 8 is switched on.
- the commutation switch 11 between the busbar 3 for load currents and the busbar 2 for currents in the event of a fault is in particular switched off simultaneously or subsequently.
- the commutation switch 9 of the faulty line 5 and the commutation switch 10 of the fault-free lines 4 and 6 are switched off at the same time or at the same time. It is also possible to switch off the commutation switch 9 of the faulty line 5 and the commutation switch 10 of the fault-free lines 4 and 6 before the commutation switch 11 is switched off.
- the commutation switches to be switched can be switched simultaneously or in any order after the high-voltage direct current circuit breaker 8 has been switched on.
- the high-voltage direct current circuit breaker 8 After switching with the subsequent switch position of the switches 8, 9, 10, 11 as shown in FIG. 3, the high-voltage direct current circuit breaker 8 is switched off. The subsequent switching position of the switches 8 , 9 , 10 , 11 is shown in FIG.
- the fault-free lines 4 and 6, which are live-connected to the busbar 3 for load current via the respectively assigned commutation switch 9, and the faulty line 5, which in particular are live, are electrically separated is connected via the associated commutation switch 10 to the busbar 2 for current in the event of a fault.
- a high-voltage direct current switchgear 1 according to the invention thus enables the separate switching, in particular switching off, of direct current lines 4, 5, 6, 7, and with the reverse switching sequence compared to that in Figures 2 to 4 order shown , switching on .
- Only one high-voltage direct current circuit breaker 8 is necessary, and/or fewer high-voltage direct current circuit breakers 8 are necessary than lines 4, 5, 6, 7 to be switched are connected, which means expensive, complex, difficult to obtain and space-consuming high-voltage -DC circuit breaker saves .
- the commutation switches 9, 10, 11 used are smaller, less expensive, less complex than high voltage DC power switches and are commonly available.
- the high-voltage DC switchgear 1 according to the invention is simpler, more cost-effective, requires less space and is less complex, compared to high-voltage DC switchgear with one high-voltage DC circuit breaker per line to be switched.
- busbars 2 for current in the event of a fault are supplied separately via in particular their own batteries, generators and/or other voltage sources and rectifiers with direct current, in particular at the same voltage as busbars 3 for load current.
- the faulty lines, in particular line 5 in FIG. 4 are then switched off by switching off the separate current/voltage supply of the busbar 2, e. B. by switching off or Shutdown of the generator connected to the busbar 2 .
- the error-free lines, lines 4 and 6 in FIG. 4 remain switched on and supplied with direct current via the busbar 3, which is electrically separated from the busbar 2.
- three lines 4, 5, 6 carry current.
- a line 5, in particular a faulty line 5 can be switched off with the high-voltage DC switchgear according to the invention, as shown in Figures 2 to 4, or more than one line, in particular more than one faulty line, can be switched off with the inventive High-voltage DC switchgear are switched off, in particular simultaneously or sequentially in a specific or any order.
- the lines, in particular the outgoing lines 4 to 7, of the high-voltage direct current switchgear according to the invention can be switched on and off. Commutation switches can be used as in FIGS.
- commutation switch can be used for each switch shown in the figures.
- Switching case can be dispensed with commutation switch 11, with an activation and / or deactivation of the line to be switched or. Lines via the separate direct current source for supplying the busbar for current in the event of a fault, in particular by starting up and/or shutting down a generator.
- the high-voltage DC switchgear according to the invention causes an electrical separation of the fault-free and faulty outgoing lines, or. in the reverse order of the exemplary embodiment from the figures, a merge of outgoing lines or. DC power lines .
- the high-voltage DC switchgear according to the invention causes an electrical separation of outgoing lines, or. in the reverse order of the embodiment of the figures, a merge of outgoing lines or. DC power lines .
- the commutation switches are z. B. special DC commutation switches and/or conventional high-voltage power switches, such as e.g. B. used with AC voltages.
- Outgoing lines can transport direct current in different directions, in particular in the direction of the high-voltage direct current switchgear and/or away from the high-voltage direct current switchgear.
- Rails are e.g. B. Busbars and/or power lines for direct current, in particular made of copper, aluminum and/or steel.
- Outgoing lines are power lines for direct current, in particular made of copper, aluminum and/or steel.
- Power lines for direct current are e.g. B. HVDC lines or . Cable .
- the high-voltage direct current switchgear is and/or includes outdoor and/or gas-insulated systems, especially in buildings.
- bus bar load 2 busbars for current in the event of a fault, bus bar power 3 bus bar for load current, bus bar load
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020212305.5A DE102020212305B4 (de) | 2020-09-30 | 2020-09-30 | Hochspannungs-Gleichstrom-Schaltanlage und deren Verwendung sowie Verfahren zum Schalten von Gleichspannungen |
| PCT/EP2021/074901 WO2022069187A1 (de) | 2020-09-30 | 2021-09-10 | Hochspannungs-gleichstrom-schaltanlage und deren verwendung sowie verfahren zum schalten von gleichspannungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4200949A1 true EP4200949A1 (de) | 2023-06-28 |
Family
ID=77897638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21773790.7A Pending EP4200949A1 (de) | 2020-09-30 | 2021-09-10 | Hochspannungs-gleichstrom-schaltanlage und deren verwendung sowie verfahren zum schalten von gleichspannungen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4200949A1 (de) |
| CN (1) | CN116420291A (de) |
| DE (1) | DE102020212305B4 (de) |
| WO (1) | WO2022069187A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL246828B1 (pl) * | 2022-07-26 | 2025-03-17 | Politechnika Warszawska | Układ aparatów w rozdzielni prądu stałego |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD215427A1 (de) * | 1983-03-31 | 1984-11-07 | Inst Prueffeld Fuer Elektr Hoc | Schaltanlage zur verteilung von elektroenergie sowie verfahren zum betreiben der schaltanlage |
| DE3642108A1 (de) * | 1986-12-10 | 1988-06-16 | Bbc Brown Boveri & Cie | Schaltanlage zur verteilung elektrischer energie und verfahren zum betreiben der schaltanlage |
| DE19833607A1 (de) * | 1998-07-25 | 2000-01-27 | Abb Research Ltd | Verfahren zum Betrieb einer elektrischen Schaltanlage und elektrische Schaltanlage |
| EP2907209A1 (de) | 2012-12-13 | 2015-08-19 | Siemens Aktiengesellschaft | Schalteranordnung eines gleichspannungsnetzes |
-
2020
- 2020-09-30 DE DE102020212305.5A patent/DE102020212305B4/de active Active
-
2021
- 2021-09-10 WO PCT/EP2021/074901 patent/WO2022069187A1/de not_active Ceased
- 2021-09-10 CN CN202180074837.9A patent/CN116420291A/zh active Pending
- 2021-09-10 EP EP21773790.7A patent/EP4200949A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020212305B4 (de) | 2022-05-05 |
| DE102020212305A1 (de) | 2022-03-31 |
| CN116420291A (zh) | 2023-07-11 |
| WO2022069187A1 (de) | 2022-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102007055071B3 (de) | Kurzschlussbegrenzungsvorrichtung in einer Niederspannungsanlage | |
| DE112019003016T5 (de) | Ferndifferentialschutzvorrichtung | |
| DE102013103753A1 (de) | Photovolatische energieerzeugungsanlage und verfahren zum betreiben einer pv-anlage | |
| EP0002440A1 (de) | Ein- oder mehrphasig metallgekapselte, druckgasisolierte Hochspannungsschaltanlage | |
| DE102011089851B4 (de) | Vorrichtung zur unterbrechungsfreien Stromversorgung von elektrischen Verbrauchern und Verfahren zum Betrieb der Vorrichtung | |
| DE102007045486B4 (de) | Modulare Schaltanlage zur Energieverteilung | |
| EP3111526B1 (de) | Netzknoten für ein stromnetz, regeltransformator für einen netzknoten und verfahren zum betreiben eines netzknotens | |
| DE102017101451A1 (de) | Niederspannungs-Schutzschaltgerät | |
| EP2978091B1 (de) | Verfahren zur übertragung elektrischer energie | |
| DE102020212305B4 (de) | Hochspannungs-Gleichstrom-Schaltanlage und deren Verwendung sowie Verfahren zum Schalten von Gleichspannungen | |
| EP1851841B1 (de) | U-boot-gleichstromnetz | |
| EP2669920B1 (de) | Schaltanlage | |
| DE2943413A1 (de) | Haupt- und unterstationen fuer die verteilung elektrischer energie | |
| EP2589121A2 (de) | Druckgasisoliertes mehrphasiges schaltfeld | |
| EP3488457A1 (de) | Vorrichtung und verfahren zum schalten von mittel- und hochspannungen | |
| EP2907209A1 (de) | Schalteranordnung eines gleichspannungsnetzes | |
| EP2904677B1 (de) | Schaltungsanordnung mit einem wechselrichter | |
| DE2128300C3 (de) | Vorrichtung zur Herabsetzung des Widerstandes eines Kabelfehlers bei der Fehlersuche an Kabeln | |
| DE102006054940A1 (de) | Schaltfeldanlage mit Redundanz | |
| EP4350922A1 (de) | Elektrisches netzwerk zur hochspannungsgleichstromübertragung | |
| EP4358339A1 (de) | Hochspannungsgleichstromübertragung ohne dedizierten metallischen rückleiter | |
| DE102007019164A1 (de) | Transformatorenschaltung | |
| Lalev | Determination of Relay Protection Settings for DC Traction Networks Under Non-Standard Section Power Supply | |
| DE166224C (de) | ||
| DE102010034905A1 (de) | Parallelbetrieb von Umrichtertransformatoren für die Hochspannungsgleichstromübertragung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20230323 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20251014 |