Abstract: A locking mechanism is disclosed for being locked together with a structure to be engaged, the locking mechanism including: a driving member, which is capable of moving in a driving direction; a first driven member and a second driven member, both of which are disposed axially symmetrically with respect to the driving direction and are coupled with the driving member so as to be driven by the driving member to move toward or away from each other along a driven direction of each of the first driven member and the second driven member respectively, the driven direction of each of the first driven member and the second driven member being transverse or oblique to the driving direction; an actuating handle, which is coupled with the driving member to move the driving member in the driving direction.

Abstract: A device for detecting an arc fault in a polyphase electrical installation comprises: a high-frequency measuring system coupled to at least two electrical phase lines of the installation, said measuring system being configured to extract a first signal representative of high-frequency components of electrical currents flowing through said phase lines; a plurality of low-frequency measuring systems, each coupled to one electrical phase line of the installation, each being configured to acquire a second signal representative of the alternating line current flowing through the corresponding phase line; and a data-processing module programmed to detect an arc fault on the basis of the second signals and of the first signal.

Abstract: A ground fault directionality detection method, a ground fault directionality detection device and a computer-readable storage medium for a small current grounding system are disclosed. The ground fault directionality detection method comprises sampling at least a part of a current signal to obtain a numerical matrix; providing the numerical matrix as an input to a ground fault directionality detection neural network; calculating a label vector corresponding to the numerical matrix by the ground fault directionality detection neural network, wherein the label vector indicates whether the current signal is an upstream fault current signal or a downstream fault current signal; receiving a ground fault confirmation signal by the ground fault directionality detection neural network; and outputting the label vector by the ground fault directionality detection neural network when the ground fault confirmation signal indicates that the current signal is a ground fault current signal.

Abstract: A DC circuit breaker device is provided, including: a circuit breaker module including a first circuit breaker and a second circuit breaker connected in series with the first circuit breaker; a commutation module connected in parallel with the first circuit breaker and including a commutation capacitor, a commutation switch module and a commutation inductor connected in series; the commutation switch module including a commutation switch positive branch and a commutation switch negative branch; and a control module coupled to the circuit breaker module and the commutation module, and configured to control the switching on/off of the commutation switch positive branch and the commutation switch negative branch after the first circuit breaker is re-closed. A method of controlling a DC circuit breaker is also provided.

Abstract: For optimizing an anti-sway algorithm for the transport of a load by a hoisting appliance spanning a hoisting area and comprising a trolley, a reeving system and a tool handling the load, a control device is able to: create a first table giving angle offsets of the trolley, depending on physical characteristics of the load and on mechanical parameters related to the trolley, the angle offsets being determined by measurements of inclination angles of the trolley, create a second table giving probabilities of a secondary sway of the load depending on physical characteristics of the load, on mechanical parameters related to the reeving system and on measurements of acceleration and angular position of the tool, and transport the load in the hoisting area by using an anti-sway algorithm taking into account the first table and the second table, wherein anti-sway algorithm takes as inputs dynamic parameters of hoisting appliance comprising the current position of the trolley, the load and the current angle of th

Abstract: A method and system are provided to control operations of an air handling unit (AHU). The method and system involve receiving a first set point(s) of a comfort zone for defining expected environmental conditions for at least one room/space; determining a second set point(s) of a comfort supply zone of an air supply according to the first set point(s), the comfort supply zone defining expected environmental conditions for the air supply to be output from the AHU; receiving information relating to environmental conditions of available fresh air and available recycled air; and controlling the AHU to combine the available fresh air and the available recycled air to produce an air mixture of the available fresh air and the available recycled air at an air mixture ratio having environmental conditions which are nearest to the second set point(s), based on the received information.

Abstract: A DC switchgear includes: an instrument compartment in which secondary components for monitoring, protecting and measuring are arranged; a busbar compartment in which a main busbar and a first fixed contact connected with the main busbar is arranged; a cable compartment in which a conductor is arranged for connecting to a cable, and a second fixed contact connected with the conductor is further arranged in the cable compartment or the busbar compartment; and a handcart compartment in which a handcart capable of moving in and out of the handcart compartment is arranged, wherein a current-carrying branch, a commutation branch and an energy-absorbing branch are arranged on the handcart, a first and a second movable contacts respectively for contacting with the first and the second fixed contacts are further arranged on the handcart, and the first and the second movable contacts are respectively connected to both ends of the current-carrying branch.

Abstract: An extension handle assembly includes: a housing; a handle driving the knob to rotate from a first position to a second position during a manual tripping period of a motor protection circuit breaker and drives the handle to rotate from the first position to a third position during a fault tripping; a stopper configured to abut against the handle upon the handle rotating from the first position to the second position during the manual tripping period, to provide a stopping force for a rotation of the handle to increase a force required for the rotation of the handle from the first position to the second position; and configured not to abut against the handle upon the handle rotating from the first position to the third position during the fault tripping period, not to provide a stopping force for the rotation of the handle.

Abstract: A switching device, including: a main switch configured to be displaced between a closed position of a main circuit and an open position, a vacuum interrupter including: a fixed electrode, a mobile electrode, configured to be displaced between: a first, so-called closed, position, and a second, so-called open, position, in which the electrodes are apart, a palette configured to make the mobile electrode switch over from the first position to the second position and comprising an electrically conductive plate, the main switch being configured to drive the palette via the plate, a connection wire electrically linking the plate and the mobile electrode, the wire being in electrical contact with a tube disposed in an accommodating recess of the plate, wherein the accommodating recess comprises a wall exerting an elastic holding force on the tube.

Abstract: For a connection authorization from a communication device to an application server, an electronic device: provides a first dataset to a security server in response to a first request, wherein the first dataset is related to a certificate of the electronic device; retrieves an intermediary certificate from the security server, wherein the intermediary certificate is generated by the security server based on the first dataset and signed by the security server; when connecting the electronic device to a communication device intended to be introduced in a secured network for the first time, receives a second request from the communication device, the second request including a second dataset related to a certificate of the communication device; generates a third dataset related to a signature of certificate of the communication device by the electronic device and to the intermediary certificate; sends the third dataset to the communication device that is able to obtain authorization to access to the secure netwo

Abstract: The present invention relates to a method of generating random numbers for cryptographic applications, in which a recording of an environment is generated by means of a detection unit, the recording is presented by means of a display device, a virtual object is positioned in the presentation of the recording in the environment, real world coordinates for real world points in a real world coordinate system are determined for the environment, virtual world coordinates for one or more virtual world points in a virtual world coordinate system are determined for the virtual object, at least the real world coordinates of a real world point of the environment and the virtual world coordinates of a virtual world point of the virtual object are used to generate a random number, and the random number is used in a cryptographic application.

Abstract: A method of controlling the sequence of program parts has the following steps: initiated by the occurrence of a first event (E1), executing a first program part (P1) on a first arithmetic logic unit (RW1), wherein the first event (E1) and/or the first program part (P1) is/are assigned a first priority (Py1), and initiated by the occurrence of a second event (E2), interrupting the execution of the first program part (P1) and then executing a second program part (P2) on the first arithmetic logic unit (RW1), wherein the second event (E2) and/or the second program part (P2) is/are assigned a second priority (Py2) that is higher than the first priority (Py1), wherein the first and/or the second program part (P1, P2) is/are a function block in the sense of IEC 61499 or a part thereof or a data transmission initiated thereby.

Abstract: A functional module (200) for an electrical connection enclosure comprises one or more monitoring-and-control units (138), a protection unit (140) common to all the monitoring-and-control units (138), supplying electrical power to all the monitoring-and-control units and electrically protecting all the monitoring-and-control units, a segment of computer bus (204) connecting all of the monitoring-and-control units to an industrial computer, just as many external connection modules (208) and input-output modules (206) as monitoring-and-control units, and a support structure. The height of the monitoring-and-control units can be equal to 1U, 2U, 3U, 4U, 5U or 6U, “U” designating a unit height corresponding to a base height of a monitoring-and-control units, and the functional module has a main height (H4) equal to 6U and can accommodate any technically permissible combination of monitoring-and-control units, depending on the height of these control units.

Abstract: A linear motor system, which is in particular a transport system and, for example, a multi-carrier, comprises a guide track having a plurality of electromagnets arranged distributed along the guide track; at least one carrier that is guided by and movable along the guide track and that comprises a drive magnet for cooperating with the electromagnets of the guide track to move the carrier; and a control device for controlling the movement of the carrier relative to the guide track by a corresponding control of the electromagnets. The guide track has at least one stationary transmission device that is provided for supplying energy and that is located at a predetermined position. The carrier comprises a corresponding reception device, which is configured to receive energy from the transmission device of the guide track, and an energy consumer.

Abstract: An electrical distribution system is configured to supply electric power to an electric load and includes a feeder, a battery energy storage system, an electrical switchgear device and an electronic controller. The switchgear device is configured to selectively connect the connection point to the feeder, wherein the electronic controller is configured to: detect an electric fault representative of a power loss event on the grid power source; upon detecting an electric fault, automatically open the electrical switchgear device to disconnect the grid power source from the feeder; and ensure that the battery system supplies electric power to the electric load while operating in a virtual-synchronous generator control mode.

Abstract: For providing a set of services relating to a semantic model of an infrastructure including assets belonging to different engineering domains, an application server: retrieves, for each engineering domain, asset identifiers respectively associated with assets of the engineering domain and with sets of attributes and for determining asset relationships between the asset identifiers; builds, for each engineering domain, an engineering domain model including assets identifiers that are linked between them based on the asset relationships; determines at least one asset identifier that belongs or is connected to at least two different engineering domain models and linking the at least two different engineering domain models via the at least one asset identifier to build a semantic model of the infrastructure; and provides a set of services for the semantic model of the infrastructure, the services using sets of attributes associated with asset identifiers that belong to different engineering domain models.

Abstract: It is disclosed a motor thermal protection device and operation method thereof. The motor thermal protection device utilizes a power supply of a motor for power supplying and comprises: a capacitor timing circuit, configured to time after the motor is powered off; a power-off time determining unit, configured to perform a reading operation of reading an output voltage of the capacitor timing circuit after the motor is powered on, and determine a power-off time from when the motor is powered off to when the motor is powered on according to the output voltage; and a heat accumulation calculating unit, configured to calculate a remaining heat accumulation when the motor is powered on according to the power-off time and a heat accumulation when the motor is powered off.

Abstract: The present disclosure relates to contactor, and device and method for controlling same. A control device for a contactor comprises a high side control unit, a first low side control unit, a second low side control unit, a freewheeling unit, and a controller. The high side control unit is configured to switch on or switch off the connection of the first magnetic unit and the second magnetic unit of the contactor with a power supply. The first low side control unit is configured to switch on or switch off the connection of the first magnetic unit with the reference voltage node. The second low side control unit is configured to switch on or switch off the connection of the second magnetic unit with the reference voltage node. The freewheeling unit is connected across a branch comprising a first magnetic unit and a first low side control unit and connected across a branch comprising a second magnetic unit and a second low side control unit.