EP3928406A1 - Procédé de surveillance d'un dispositif électrique - Google Patents
Procédé de surveillance d'un dispositif électriqueInfo
- Publication number
- EP3928406A1 EP3928406A1 EP19716814.9A EP19716814A EP3928406A1 EP 3928406 A1 EP3928406 A1 EP 3928406A1 EP 19716814 A EP19716814 A EP 19716814A EP 3928406 A1 EP3928406 A1 EP 3928406A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- electrical device
- operating status
- status data
- electrical
- 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
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/20—Administration of product repair or maintenance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
- G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
- G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
- H02J13/12—Monitoring network conditions, e.g. electrical magnitudes or operational status
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network
- H02J13/13—Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network characterised by the transmission of data to equipment in the power network
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/001—Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies
- H02J3/0012—Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies characterised by the contingency detection means in AC networks, e.g. using phasor measurement units [PMU], synchrophasors or contingency analysis
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
- H02J7/585—Sequential battery discharge in systems with a plurality of batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2103/00—Details of circuit arrangements for mains or AC distribution networks
- H02J2103/30—Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
Definitions
- the invention relates to a method for monitoring an electrical device which is connected to an electrical transmission network.
- the electrical transmission network can be, for example, a high-voltage or medium-voltage supply network that is operated with an AC alternating voltage.
- the electrical device can suitably be designed accordingly for an operating voltage at high voltage or medium voltage level above 1 kV. If the electrical device is connected to the electrical transmission network, it can also be understood as part of this transmission network.
- the electrical device can be, for example, a surge arrester, switchgear (such as a circuit breaker), a transformer (high-voltage transformer) with a tap changer or the like.
- switchgear such as a circuit breaker
- transformer high-voltage transformer
- the object of the invention is to provide a method mentioned at the outset which enables electrical devices to be monitored as effectively and reliably as possible.
- the object is achieved by a method for monitoring a first electrical device connected to a transmission network with the following method steps: provision of measured operating status data of the first electrical device, provision of measured operating status data of further electrical devices services that are similar to the first electrical device and are connected to the transmission network, comparing the operating status data or at least one variable derived therefrom with at least one predetermined data pattern, where the comparison is carried out taking into account the operating status data of the first and all further electrical devices, Providing information about the control and / or maintenance measures to be carried out and assigned to the data pattern, if the comparison shows a match with the data pattern.
- the operating status data can expediently be provided by storing them in a storage medium of a data processing device.
- the operating status data are recorded by means of suitable sensors of the electrical devices and transmitted for provision.
- the sensors can already be installed in the facilities or arranged as external devices on the facilities or in their spatial vicinity.
- the transmission is preferably carried out by radio, in any case advantageously, but not necessarily, cordless.
- the data processing device or its memory can also be present in a cloud, for example distributed over several devices.
- the electrical devices are similar to each other, ie they are electrical devices with the same or similar function and basic structure. Examples are circuit breakers of the same type, transformers, surge arresters, high-voltage bushings, capacitor units and the like.
- the operating status data are compared with the data pattern, and it is also possible to examine the derived variables, such as differences between the operating status data, their changes over time or statistical variables obtained from the operating status data.
- the data pattern or patterns are predetermined and expediently stored.
- the data pattern or patterns can be or include threshold values, predetermined data sequences, value relationships between data, such as correlations, statistical hypotheses. Several partial patterns can define a data pattern.
- the comparison takes place using the data provided not only from the first, but also from the other electrical devices. This means that the monitoring of the first electrical device takes place on the basis of measurement data from several similar devices.
- control measure is, for example, transferring the first electrical device to another operating state or working point.
- a maintenance measure is, for example, the replacement or cleaning of components.
- the measures to be carried out can be carried out automatically or manually by maintenance personnel. It is of course possible to monitor not only the first electrical device, but also the other devices using the analysis of the operating status data.
- One advantage of the method according to the invention is the possibility of relatively complete and at the same time inexpensive monitoring of the electrical device.
- the pattern recognition also makes it advantageously possible to recognize accumulations of specific events and to take suitable control and / or maintenance measures in good time.
- An example in this context is an accumulation of surge arrester responses in connection with the switching of lines, through tree growth and bird disturbance or in connection with flashovers to earth or phase to phase that lead to overloading or premature aging of the devices.
- Another example is the detection of an increased number of switching operations by tap changers on transformers, for example in connection with certain network configurations.
- Another example is the detection of an increased leakage current on isolator surfaces (e.g. on the binding layer of a choke) and partial discharges on isolators.
- monitoring An electrical device based on data from several electrical devices of the same type has the significant advantage over independent parallel monitoring of individual devices that slow parameter changes or individual events that affect all devices can be recognized as such and taken into account.
- inventive method depending on the application, advantageously enables switching operations on the tap changer of a transformer, response numbers of surge arresters in the event of switching overvoltages, voltage peaks on insulators and mechanical loads from current surges or higher-frequency currents (e.g. harmonic currents with a multiple of the mains frequency, especially with chokes ) can be reduced.
- the data pattern suitably comprises a time correlation between a predetermined operating state of the first electrical device and a predetermined network state of the transmission network. This means that an agreement between the operating status data and the data pattern assumes that the operating status data have the described correlation. E.g. opposite correction mechanisms of voltage dividers on transformers of different voltage levels can be uncovered. In addition, an increased response of surge arresters, which coincides with certain network configurations and / or switching operations in the transmission network, can be detected in this way. This can be remedied in the form of a modification of the network configuration, predefinition of switching operations in the transmission network that are staggered over time or by retrofitting switch synchronization devices or compensation devices or vibration damping devices.
- the information expediently comprises a control measure, according to which an exchange of reactive power between a network stabilization device connected to the transmission network and the transmission network is coordinated in time with the at least one predetermined operating state of the first electrical device is carried out.
- the coordinated exchange of reactive power can be achieved, for example, by changing the reactive power flow in the transmission network, which is caused by a change in the reactive power contribution of an HVDC transmission system (high-voltage direct current transmission system), a FACTS system or by simply connecting or disconnecting shunt reactors or shunt capacitors can.
- the operating status data are preferably provided in compressed form in order to reduce the amount of data.
- threshold information can be transmitted and made available instead of analog values (for example in the form of "Current is greater than the threshold value of X amperes" or “Voltage is greater than 130% of the nominal voltage").
- the operating status data provided can be subjected to a delay correction.
- the operating status data are provided with a certain time delay, the delay generally depending on the location of the electrical device and can therefore vary for the operating status data of two different devices.
- the delay correction it allows it advantageous to eliminate this delay.
- the correction can be achieved with the aid of a time stamping of the operating status data.
- the first electrical device is a transformer
- the loading Operating status data include switching operations on tap changers of the transformers.
- the first electrical device is a surge arrester, in which case the operating state data comprise measured internal leakage currents and the data pattern comprises an asymmetry of the internal leakage currents.
- the electrical devices can be arranged, for example, in an arrester bank.
- the operating status data can also include measured external discharge currents (these discharge currents correspond to so-called foreign layer currents, pollution-related leakage currents).
- the data pattern can increase a
- An external leakage current is understood here to be a leakage current across an outer surface of an isolator.
- the increase in leakage currents is an indicator of local, possibly severe, contamination of insulators.
- Insulators can be components of over voltage arresters, post insulators, but also of bushings and other system parts.
- the first electrical device is a switching device, the operating status data including a time allocation of switching operations of the switching device.
- the temporal assignment for example a time stamp, allows the correlation of the switching operations with a voltage profile in the transmission network to be examined in a simple manner.
- an acceleration sensor can always be arranged in the same position and orientation in switching devices of the same type in a drive box. Recording of a snapshot (acceleration progress over the entire running time of the drive) is initiated as soon as a switching command is transmitted to a drive unit of the switching device.
- Characteristic peaks in the recorded acceleration profile are analyzed and evaluated with regard to their number, amplitude and time sequence. In this way, an emerging sluggishness of the mechanics of the switching device or, for example, a worn or damaged drive part can be identified from any anomalies in the acceleration profile.
- the invention also relates to a data processing device.
- the object of the invention is to propose a data processing device by means of which reliable monitoring of the electrical device is made possible.
- the object is achieved according to the invention by a data processing device which is set up to carry out a method according to the invention.
- Figure shows an embodiment of the method according to the invention in a schematic representation.
- a first electrical device 1 is shown in the figure, for example a switchgear.
- the first electrical device 1 is connected to a three-phase transmission or supply network 4.
- some further electrical devices 2-n are shown, which are constructed in the same way as the first electrical device 1 and are also connected to the supply network 4.
- the first and the further electrical devices 1 - n each have their own sensor device 5, which records the operating status data of the associated device 1 - n and sends it to a data processing device 6.
- the operating status data of the first and the further electrical devices 1-n provided in this way are stored in a memory of the data processing device 6 in the form of data arrays Datl-Datn.
- the saved data can then be edited and analyzed.
- the possibly processed operating status data are compared with a predetermined data pattern M.
- the data pattern M generally does not have to consist of a sequence of fixed values, but can also include, for example, specifications relating to dependencies between the individual stored operating status data Datl-n or deviations from an average behavior of the operating status data.
- the comparison thus takes place taking into account the operating status data of the first and all further electrical devices. If the specifications of the data pattern are recognized as being met, information is provided about control and / or maintenance measures to be carried out and assigned to the data pattern. In the example shown, the provision takes place by means of a graphical user interface 7.
- the information provided here includes a proposed control measure according to which a reactive power exchange between a network stabilization device 8 connected to the transmission network 4 and the transmission network 4 is to be carried out in a time-coordinated manner with a predetermined operating state of the first electrical device 1.
- the predetermined operating state of the first electrical device 1 is a switching action that is carried out by means of the first electrical device.
- the negative effects of the switching action on the supply network 4 can be reduced by means of the time-coordinated reactive power exchange.
- a measure that includes an exchange of active power is also conceivable, the exchange of active power being able to be carried out by means of a pulse load resistor or a pulse generator.
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Human Resources & Organizations (AREA)
- Economics (AREA)
- General Business, Economics & Management (AREA)
- Marketing (AREA)
- Theoretical Computer Science (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Entrepreneurship & Innovation (AREA)
- Quality & Reliability (AREA)
- Operations Research (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2019/057823 WO2020192920A1 (fr) | 2019-03-28 | 2019-03-28 | Procédé de surveillance d'un dispositif électrique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3928406A1 true EP3928406A1 (fr) | 2021-12-29 |
Family
ID=66102660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19716814.9A Pending EP3928406A1 (fr) | 2019-03-28 | 2019-03-28 | Procédé de surveillance d'un dispositif électrique |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20220129865A1 (fr) |
| EP (1) | EP3928406A1 (fr) |
| WO (1) | WO2020192920A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019208520A1 (de) * | 2019-06-12 | 2020-12-17 | Siemens Aktiengesellschaft | Überwachungsanordnung für ein elektrisches Betriebsmittel und Überwachungssystem |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8924033B2 (en) * | 2010-05-12 | 2014-12-30 | Alstom Grid Inc. | Generalized grid security framework |
| HK1205809A1 (en) * | 2012-03-04 | 2015-12-24 | Adam JEFFRIES | Data systems processing |
| WO2014152408A2 (fr) * | 2013-03-15 | 2014-09-25 | Dominion Resources, Inc. | Commande de système électrique avec planification de la demande et de l'efficacité énergétique |
| JP6301791B2 (ja) * | 2014-09-17 | 2018-03-28 | 株式会社東芝 | 配電網の故障予兆診断システムおよびその方法 |
| GB2541465A (en) * | 2015-08-21 | 2017-02-22 | General Electric Technology Gmbh | Electrical assembly |
| JP6399136B1 (ja) * | 2017-03-31 | 2018-10-03 | オムロン株式会社 | 制御装置、制御プログラム、および制御システム |
-
2019
- 2019-03-28 EP EP19716814.9A patent/EP3928406A1/fr active Pending
- 2019-03-28 US US17/599,016 patent/US20220129865A1/en not_active Abandoned
- 2019-03-28 WO PCT/EP2019/057823 patent/WO2020192920A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020192920A1 (fr) | 2020-10-01 |
| US20220129865A1 (en) | 2022-04-28 |
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