Abstract: An apparatus for detecting an islanding state of a power generation device is disclosed. The apparatus includes a first acquisition unit for acquiring a first current amount at a substation; a second acquisition unit for acquiring a second voltage phasor at the power generation device; a processing unit connected with the first acquisition unit and the second acquisition unit, for determining the interconnection impedance between the power generation device and the substation according to the ratio of the variation of the second voltage phasor and the variation of the first current within the same time period, and determining that the power generation device is in an islanding state under the condition that the interconnection impedance meets a predetermined condition. Furthermore, a method for detecting an islanding state of a power generation device and a system for detecting the islanding state of the power generation device is disclosed.

Abstract: A linear motor for a transport system, in particular for a multi-carrier system, has a yoke comprising a plurality of teeth arranged after one another and a plurality of drive coils arranged at the teeth. The drive coils are configured to cooperate with drive magnets of a transport element to bring about a drive force for moving the transport element along a guide track of the transport system. The teeth have marginal teeth arranged at the two ends of the yoke. At least one of the marginal teeth is inclined with respect to the other teeth.

Abstract: According to at least one aspect of the disclosure, an inverter is provided comprising an input configured to receive input DC power from a DC source, an output configured to provide output AC power to a load, a plurality of DC rails coupled to the input and configured to receive the input DC power from the DC source, a plurality of switches coupled between the plurality of DC rails and configured to convert the input DC power into the output AC power, each switch of the plurality of switches having a parasitic capacitance, and at least one ZVS network coupled across at least two switches of the plurality of switches, the ZVS network including at least two inductors configured to resonate with the parasitic capacitance of at least one switch of the plurality of switches to provide soft switching of at least one switch of the plurality of switches.

Abstract: A circuit breaker with an integrated motorized racking mechanism, automatically provides electrical power to the racking motor when the breaker is inserted into a breaker compartment. The racking motor remains powered when the breaker is in either a disconnected position, a testing position, or a fully connected position. A racking power plug mounted within the circuit breaker conducts electrical power to the racking motor by automatically connecting to a stationary racking power receptacle mounted in the breaker compartment, and remains connected as the circuit breaker moves through the breaker compartment during the racking operation. A control power plug is mounted in the circuit breaker to connect to a stationary control power receptacle mounted in the breaker compartment and to conduct control power to control circuits in the circuit breaker after the racking motor has completed racking the circuit breaker into the connected position in the breaker compartment.

Abstract: A fan housing mounting assembly includes an engagement mechanism configured to support a fan module and a housing configured to support the engagement mechanism. The engagement mechanism is pivotally connected to the housing. The assembly further includes a mesh plate including at least one connector coupled to the engagement mechanism. The mesh plate is configured to move with respect to the housing between a first position in which the mesh plate is spaced from the housing and a second position in which the mesh plate is adjacent to the housing. The assembly further includes a spring configured to engage the engagement mechanism. The spring is configured to bias the engagement mechanism to pivot with respect to the housing to present the fan module for removal. When the engagement mechanism is pivoted with respect to the housing, the mesh plate is maintained in the second position.

Abstract: A remote controlled miniature circuit breaker includes a helical gear that engages with mating teeth of a slider plate coupled to main contacts of the circuit breaker, the helical gear including a flat portion to allow the sliding plate to slide past the helical gear. A unidirectional motor responds to an external signal to drive the helical gear while engaging the mating teeth of the slider plate, thereby moving the slider plate to close the main contacts. The motor is configured to respond to an external signal to resume the unidirectional rotation of the helical gear to position the flat portion of the gear to allow the slider plate to slide past the helical gear and contact a kicker lever to thereby open the main contacts. A trip lever pivotally mounted separately from the kicker lever, pushes the kicker lever to open the main contacts in a trip operation.

Abstract: A monolithic integrated circuit that supports multiple industrial Ethernet protocols, fieldbus protocols, and industrial application processing, thereby providing a single hardware platform that may be used to build various automation devices/equipment implemented in an industrial network, such as controllers, field devices, network communication nodes, etc.

Abstract: A method is provided for assessing health of a mechanical system. The method includes receiving discontinuous system data that is obtained intermittently and is associated with health of the system and generating a discontinuous health index that is based on the discontinuous system data and receiving continuous system data that is obtained continuously and is associated with the health of the system and generating a continuous health index that is based on the continuous system data, wherein the discontinuous health index and the continuous health index are configured to be combinable. The method further includes combining the discontinuous health index and the continuous health index, generating an overall health index based on the combination of the discontinuous health index and the continuous health index, and automatically taking one or more actions to maintain or improve health of the mechanical system and/or avoid risk based on the overall health index.

Abstract: Provided are systems, methods, and devices for providing access control to data of a system. Implementations may include providing an interface, receiving access control information via the interface, the access control information relating to a subset of the data of the system, generating an access control command based at least in part upon the received access control information, processing the access control command to create an external repository which is external to the system, the external repository including the subset of the data of the system, and providing access to at least a portion of the subset of the data of the system to a user.

Abstract: The invention relates to a method of integrating at least one AI function block, which comprises artificial intelligence, into a controller for an industrial machine. In the method, for the AI function block, an AI model is selected for execution in the AI function block, the AI function block is linked in an at least partly automated manner to further function blocks of control software of the industrial machine and the AI function block is brought to execution in an at least partly automated manner, wherein the execution of the AI function block takes place by means of an IEC 61499 runtime environment.

Abstract: Embodiments provide techniques for securely managing the transmission of register operations to endpoint devices (e.g., circuit breakers and other forms of electrical equipment). A firewall management component can add, through a secure communications channel, an entry to a firewall structure maintained on a firewall device. The entry can specify (i) a register operation for an endpoint device, (ii) a value for the register operation, and (iii) a count of times that the register operation can be performed. The firewall management component transmits register operation to the firewall device to be forwarded to the endpoint device. The firewall device is configured to forward the register operation to the endpoint device only if the count specified in the firewall structure would not be exceeded.

Abstract: A direct current circuit breaker handcart and a direct current switch apparatus are provided. In the direct current circuit breaker handcart, the current carrying element is located on the support surface, and includes a main circuit breaker and an auxiliary circuit breaker electrically connected with each other; the commutation element is located on the support surface, is electrically connected with the current carrying element, and includes a commutation capacitor, a commutation inductor, a commutation switch assembly, and a commutation capacitor charger electrically connected with each other; the repulsive assembly is configured to control opening and breaking off of the main circuit breaker; the energy absorbing element is located on the support surface, and is electrically connected with the current carrying element and the commutation element, respectively.

Abstract: A method is provided for an application program interface (API) to interface with an ontology store storing a plurality of modifiable ontology models having associated dynamic definitions associated that define classes of the associated ontology model and relationships between the respective classes and that is modifiable over time. The method includes receiving from a requesting entity a request that specifies an ontology model and one or more parameters defining attributes of an instantiated ontology object, accessing the ontology store, identifying an ontology model in the ontology store that corresponds to the ontology model specified, and manipulating the identified ontology model based on its one or more parameters.

Abstract: According to one aspect, embodiments of the invention provide an electrical-converter system comprising a printed circuit board including at least a first layer and a second layer, a switching node disposed on the second layer, a first transistor, a second transistor, a third transistor, and a fourth transistor disposed on the first layer, a first conduction path from a source of the first transistor, through the switching node, to a drain of the fourth transistor, the first conduction path having a first length, and a second conduction path from the source of the first transistor, through the switching node, to a drain of the second transistor, the second conduction path having a second length, wherein the first length of the first conduction path is greater than the second length of the second conduction path.

Abstract: Aspects of the disclosure include a filter comprising a first interleaved input, a second interleaved input, an output, a first transformer comprising a first primary winding with N1 turns and a first secondary winding with N2 turns, and a second transformer comprising a second primary winding with N3 turns and a second secondary winding with N4 turns, wherein the first primary winding and the second secondary winding are in series with the first interleaved input and the output, and the first secondary winding and the second primary winding are in series with the second interleaved input and the output.

Abstract: A monitoring/control plug-in unit for a connection electrical enclosure comprises functional elements and allow the connection and possibly the operation and/or the surveillance of an electrical load. The monitoring/control plug-in unit able to move within the connection electrical enclosure between an operation position and a test position. The plug-in unit comprises a locking system, which comprises an electromagnetic lock. A control circuit board of the drawer control the functional elements and the electromagnetic lock. The locking system of the plug-in unit is configured to allow the monitoring/control plug-in unit to be locked in the test position or in the operation position independently of the functional elements contained in the plug-in unit, and prior validation of the correct operation of the plug-in unit and/or of the electrical load is needed for unlocking the plug-in unit, this validation being performed by the control circuit board and allowing the electromagnetic lock to be unlocked.

Abstract: For polling communication devices in a communication system including a host device and communication devices. The host device is connected to the communication devices via a clock line for transmitting a clock signal to the communication devices and via an arbitration line implemented with “OR” logic for receiving arbitration signal transmitted by the communication devices. Each communication device is configured to pull up or down the arbitration line for sending an arbitration signal when the communication device is ready to send data to the host device. Each communication device is configured to pull down the arbitration line for sending an arbitration signal when the communication device has no data to send to the host device.