Abstract: A tank for a medium-voltage electrical unit that is intended to contain a gas under a pressure greater than atmospheric pressure, the tank having: a structure that has uprights, panels that are secured to the uprights, the panels being set up to receive a pressure force of the pressurized gas, at least one metal reinforcing rod extending in a longitudinal direction, the reinforcing rod connecting together two uprights so as to counter a deformation of the uprights under the action of the pressure force of the gas, at least one first electrically insulating tube, wherein at least one longitudinal portion of the reinforcing rod is surrounded by the first insulating tube, and wherein an inner surface of the first insulating tube is remote from a lateral surface of the reinforcing rod.

Abstract: A method serves to control an industrial plant comprising a programmable logic controller. In the method, the programmable logic controller establishes a connection with a cloud server, the programmable logic controller executes a software module that causes the creation and/or configuration of a virtual machine on the cloud server, the software module receives and stores an access token, the programmable logic controller uses the access token to access the virtual machine and the programmable logic controller cooperates with the virtual machine to transmit process data to the virtual machine and/or to support the control of the industrial plant.

Abstract: The invention relates to a linear motor system, in particular a transport system, e.g.

Abstract: A regulation process of an electrical distribution network that comprises a main power source, among one or more electrical sources, configured to impose on the network the voltage and frequency of a power circulating on the network to which one or more loads are connected. The process includes, in the event of a variation of one of the frequency or the voltage detected on the network, during a primary regulation, one adjustment step by the main source of the other between the frequency and the voltage, to maintain constant the ratio voltage/frequency.

Abstract: A method for estimating a property of an electrical switching device includes: detecting a movement of electrical contacts of the switching device beyond an opening threshold; measuring, for at least one phase of the electrical device, the electric current through this phase; evaluating, for at least one phase of the electrical device, the voltage of an electric arc between the electrical contacts that are associated with this phase; and calculating, for at least the phase of the electrical device, an energy value associated with the electric arc, by numerically integrating the product of the measured electric current and of the evaluated voltage, the integration being performed over a time interval starting from the detection of the movement of the electrical contacts.

Abstract: A safety detector including a detection module configured for reading a control signal at the input, the detector including two supply terminals, a first control input and a first control output, a first safety output and a second safety output, and a first free terminal and a second free terminal, the detector including: a second control input connected to the first free terminal and a second control output connected to the second free terminal, and a test module configured for notably applying a first test sequence including a disabling of the first control output and a test of a start loop connected between the second control output and the first control input.

Abstract: An electrical breaking contact, in particular a radial-magnetic-field electrical breaking contact, is provided for a medium-voltage vacuum interrupter, the contact including: a rod extending along a longitudinal axis, said rod being configured to be passed through by an electrical current, a contact body extending transversely to the longitudinal axis and including a first fastening surface, the contact body and the rod being coaxial, wherein the rod includes: a second fastening surface securely fastened to the first fastening surface, an abutment surface radially exterior to the first fastening surface (4), the abutment surface being distant from the contact body along the longitudinal axis and turned toward the contact body.

Abstract: A system includes an edge server for a secured deployment of a container in the edge server. The system also includes a secure element and a message broker that routes messages from containers, wherein a container is deployed in the edge server. The system further includes a secure element manager configured to negotiate with the deployed container to agree on an ephemeral key, by exchanging messages containing values derived from shared secrets. The secure element manager retrieves a secret identifier from the secured element and encrypts the secret identifier with the ephemeral key. The container retrieves the encrypted secret identifier from the secure element manager, decrypts the encrypted secret identifier with the ephemeral key, accesses the secured element using the decrypted secret identifier, and retrieves credentials generated by the secured element in order to connect with the message broker.

Abstract: A device for optimizing the scheduling of files to be sent to an application server at regular time intervals, the device configured to: retrieve a first set of files from a database for a time interval, the first set of files being stored in a priority queue and carrying information sent from sensors linked to industrial machines, apply the retrieved first set of files to a scheduling algorithm using a compression ratio and combined with a reinforcement learning in order to select a second set of files, compress the second set of files based on the compression ratio into a compressed file, wherein the size of the compressed file is below a size limit, and send the compressed file to the application server, wherein the compression ratio is updated based on the size of the second set of files and the size of the compressed file, and wherein the reinforcement learning uses the size of a previous compressed file from a previous time interval.

Abstract: A time alignment method for a differential protection device, the differential protection device and a differential protection system are disclosed. The time alignment method includes obtaining a plurality of current sampled values and a count value of each current sampled values; resampling the plurality of current sampled values with sampling frequency of J points/cycle to obtain a plurality of current resampled values; and performing Fourier transform on the plurality of current resampled values to obtain a plurality of temporally arranged current Fourier values, the plurality of current Fourier values includes a reference current Fourier value corresponding to the sampling moment of the current sampled value whose count value is the first value in the plurality of current sampled values, and the reference current Fourier value is determined based on the reference current resampled value and the J?1 current resampled values that temporally arranged before the reference current resampled value.

Abstract: Provided are a data alignment method, a differential protector, and a differential protection system. The data alignment method comprises: obtaining first sampled current data from a first sampling device; receiving a second message from a second differential protector, the second message comprising second sampled current data and its sampling time stamp, first time information of the second differential protector related to a difference in time of reception from receipt of the first message to a second time node, and second time information of the second differential protector related to a second transmission processing delay from the second time node to transmission of the second message; when time synchronization is maintained, calculating and storing a time calculation deviation between a third time node and a first calculated value of the second time node; when time synchronization is lost, determining the third time node according to the stored time calculation deviation.

Abstract: A method for validating an Ethernet configuration of an automation system including several industrial devices, the method includes obtaining a device identifier for each of the industrial devices and indications of device ports and of device port connections. The method further includes obtaining device Ethernet parameters and instantiating a system object model of the Ethernet configuration of the automation system based on the device identifiers, the device ports and device port connections and the Ethernet parameters. The system object model allows applying predefined rules for generating a graph model representative of the Ethernet configuration. To the generated graph model cycle detection as known from graph theory may be applied by means of depth-first search. Based on the outcome of the cycle detection a validation result may be indicated. A generic Ethernet object model and a topology manager also are disclosed.

Abstract: A method for estimating a property of an electrical switching device that includes an electromagnetic actuator that includes a coil. The method includes: measuring electric current flowing through the coil; measuring supply electrical voltage of a control circuit for the actuator; injecting an electric current pulse into the coil; identifying a first time corresponding to a time for which the current flowing through the coil reaches a predetermined threshold value when the current increases following the injection of the pulse; and identifying a second time corresponding to a time for which the current flowing through the coil again reaches the predetermined threshold value when the current decreases after a spike. The method further includes estimating a resistance of the coil on the basis of a ratio of a sum of the values of the voltage that are measured between the second time and the first time, to a sum of the values of the current that are measured between the second time and the first time.

Abstract: A method provides a firmware update to an electronic device, to code signing for firmware updates of electronic devices, and a system therefor. In particular, the system and method for updates firmware that is authenticated through a public key infrastructure. The method includes an electronic device receiving a firmware update provided with a signature of a signing key, a signing certificate with a signature of a master key, and a revision number. The device verifies the signature of the master key on the signing certificate of the signing key, checks the revision number on the signing certificate of the signing key against a roll back counter, and verifies the signature of the signing key on the firmware update. The device then rejecting or accepting the received firmware update based on the outcome of the above verifying and checking.

Abstract: Examples include a transmitter module, a receiver module and a communication system for exchanging Ethernet Medium Access Control frames on a single M-LVDS line.

Abstract: Method for monitoring for partial discharges in an electrical installation comprising at least one electrical cubicle, the electrical cubicle comprising at least one item of medium-voltage or high-voltage electrical equipment.

Abstract: A mobile contact-holder for a cutout includes a support in which there is formed a housing, a mobile element made of electrically conductive material mounted to slide, in a longitudinal axis of the support, in the housing of the support, an upstream electrical contact pad and a downstream electrical contact pad borne by the mobile element and a spring which exerts a return force on the mobile element. The support includes two oblong holes emerging in the housing and extending along its longitudinal axis. The mobile contact-holder also includes a guiding shaft which is fixed in translation with respect to the mobile element, which extends along an axis parallel to a transverse axis of the support and which is engaged in the oblong holes of the support. The guiding shaft engaged in the oblong holes guides the translation of the mobile element in the housing.

Abstract: A monitored switch gear device that includes a switch gear, a plurality of magnets, a magnetic field sensor and a processing circuitry. The switch gear includes an opening/closing mechanism adapted to selectively open and close an electrical circuit. The opening/closing mechanism includes a pivotally mounted shaft configured to rotate about a pivot axis as the opening/closing mechanism moves between an open and a closed state. The magnets of the plurality of magnets are spaced from each other and fixedly attached to the shaft. The magnetic field sensor senses a magnetic field generated by each magnet of the plurality of magnets as the shaft pivots. Each magnet of the plurality of magnets defines a different angular position of the shaft detected by the magnetic field sensor in which the magnetic field sensor senses a respective magnet of the plurality of magnets.

Abstract: A system and method for determining a network path through a network that is managed by a software defined network (TsSDN) controller incorporating time management are disclosed. In some embodiments, the SDN controller can determine that a data packet originating from a transmitting device and directed to a receiving device is associated with one of: time-sensitive, timeaware or best effort characteristic. The controller can then determine a network path for transport of the data packet from the transmitting device to the receiving device with a guaranteed end to end delay to satisfy the characteristic. The end to end delay considers latency through each layer the data packet transitions through after being conjured at an application layer of the transmitting device. The data packet is then transmitted from the transmitting device via the network path to the receiving device.

Abstract: The present disclosure relates to a movable contact bracket assembly and a contactor, the movable contact bracket assembly includes a movable contact and a movable contact bracket, the movable contact bracket assembly further includes a magnetic conductive frame, the magnetic conductive frame is configured to at least partially surround the movable contact to protect the movable contact from arc erosion.