Abstract: Handle assemblies for circuit breakers are disclosed. One illustrative handle assembly includes a housing defining a first aperture, a seal extending around a perimeter of the first aperture, a handle extending outwardly through the first aperture and pivotable about a pivot axis located within the housing, a shroud coupled to the handle to move therewith and located at least partially within the housing, and a biasing member connected to the handle and to the shroud. The shroud includes an outer surface that faces the seal, and the biasing member biases the outer surface into continuous engagement with the seal throughout an entire pivotable range of the handle.

Abstract: A terminal clamp cover device for low voltage circuit breakers, in particular for molded case circuit breakers, having one or more phases, each provided with a terminal for the electrical connection of the circuit breaker, a clamp for the connection of the terminal to an electrical circuit and a vent opening to discharge the gases produced in the circuit breaker during opening/closing operations. The device includes an insulating body that covers the clamp, the insulating body being provided on at least one portion of its outer surface with a plurality of heat dissipating elements. A low voltage circuit breaker, in particular a low voltage molded case circuit breaker, including a device of the type described also forms part of the application.

Abstract: An objective of the present application is to provide an apparatus for conversion between AC power and DC power. The apparatus includes a first power conversion circuit having a first AC side and a first DC side, at least one second power conversion circuit each having a second AC side and a second DC side; and at least one choke having a first terminal, a second terminal and at least one third terminal, wherein the first terminal is arranged to be electrically coupled to a phase of the AC power, and the second terminal and the at least one third terminal are electrically coupled to respective same phases of the first AC side of the first power conversion circuit and the second AC side of the at least one second power conversion circuit.

Abstract: A circuit breaker having at least one capacitor assembly connected in parallel across a contact of the circuit breaker. The capacitor assembly can be housed with the contact within a sealed enclosure of the circuit breaker. The enclosure can be configured to house an insulating medium that is configured to reduce or quench an arc(s) that may form at least when the contact of the circuit breaker is displaced from a closed position to an open position. The capacitor assembly, which includes a transient recovery voltage (TRV) capacitor, can be configured to delay terminal fault and short line fault TRV and the rate of rise of the initial TRV (ITRV) that can appear across the open contact of the circuit breaker.

Abstract: A power electronic component including a surface adapted to be attached to a heatsink, the surface forming a bottom surface of the power electronic component, one or more power electronic semiconductor chips mounted on a substrate above the bottom surface, and a housing enclosing the one or more power electronic semiconductor chips. The power electronic component includes a thermal insulator disposed above the one or more power electronic semiconductor chips, such that the bottom surface and the thermal insulator are on the opposite sides of the one or more power electronic semiconductor chips.

Abstract: Systems, methods, and software are provided for automated item restocking using gantry robots and establishing safety barriers for retail work operation spaces in retail store environments. Robot controllers in communication with the gantry robots and barrier robots direct the autonomous movements thereof for transferring items between customer-accessible point of sale locations and customer-inaccessible storage, and for alternately restricting and enabling access to work operation spaces, respectively.

Abstract: An electrical bushing is specified, the bushing including a flange with a lower part and an upper part affixed to one another and further including a core surrounded by the flange, wherein the flange is affixed to the core by a locking compound disposed in a volume of a joint between the flange and the core, and wherein the volume of the joint further includes a compressible material, the compressible material being configured to compress or expand in response to a change in the volume of the joint. Furthermore, a method of producing an electrical bushing is specified.

Abstract: An insulator for a gas-insulated device is provided, including an injection-molded insulator disc and a conductor, wherein the insulator disc includes a first circumferential surface, a second circumferential surface disposed radially outwards from the first circumferential surface, and a web portion connecting the first circumferential surface and the second circumferential surface, characterized in that the web portion includes a wave structure, the web portion having an inner wave profile at the first circumferential surface and an outer wave profile at the second circumferential surface, and the inner wave profile and the outer wave profile have a radius of curvature of 2 mm or more and 10,000 mm or less.

Abstract: A system for action indication determination includes an inputter, first and second processors, and an outputter. The inputter provides the first processor with sensor data from a plurality of sensors. The second processor implements a machine learning algorithm to generate at least one pre-processing rule, where the generation includes utilization of a plurality of training sensor data and associated training action indications. The second processor provides the first processor with the at least one pre-processing rule. The first processor implements a pre-processing algorithm to determine pre-processed sensor data, where the determination includes utilization of the at least one pre-processing rule and the sensor data. The first processor provides the pre-processed sensor data to the second processor. The second processor implements the machine learning algorithm to determine at least one action indication, where the determination includes utilization of the pre-processed sensor data.

Abstract: A static electrical device assembly including: a static electrical device; a heat exchanger system including a first heat exchanger adapted for cooling of the static electrical device by transferring heat into ambient air, and a second heat exchanger adapted for recovering heat from the static electrical device; a flow passage adapted to provide a route for air flow between outdoor air and the first heat exchanger; a sensor system adapted to provide temperature information relating to the static electrical device; and a control system (CTRL) adapted to control the heat exchanger system based on information provided by the sensor system. The heat exchanger system further includes a shutter arrangement adapted to adjust a surface area of the flow passage, the control system (CTRL) is adapted to control the shutter arrangement between an open state and an enclosed state.

Abstract: Voltage converter circuits including a first and second branch. The first branch is coupled between a first DC terminal and a second DC terminal and includes a first and second winding around a magnetic core. The first and second winding are coupled to an AC terminal via a common node. The second branch is coupled in parallel to the first branch between the first and second DC terminals and includes a third winding around the magnetic core. The third winding is coupled to the AC terminal such that the first and second branches convert a first voltage into a second voltage. The first, second and third windings are configured to cause magnetic flux generated by a differential mode (DM) component of a first current in the first branch and magnetic flux generated by the DM component of a second current in the second branch to enhance with each other.

Abstract: A converter system includes a DC bus for each phase of an input AC power signal; a first switching cell for each phase, including first two active switches coupled in series across the DC bus and forming a first switching cell AC pole therebetween, the first switching cell AC pole being coupled to a respective phase; and a second switching cell for each phase, including second two active switches coupled in series across the DC bus and forming a second switching cell AC pole therebetween. The second switching cell AC poles are coupled to each other to form a flying neutral. One of the first switching cell and the second switching cell switches at a frequency at least an order of magnitude greater than the line frequency. The other of the first switching cell and the second switching cell switches at a frequency approximately equal to the line frequency.

Abstract: A device for measuring a strain of an object independently of temperature variations includes: at least one strain gauge that is attachable directly or indirectly to the object whose strain is to be measured; a first temperature sensor for measuring a temperature of the at least one strain gauge; read-out electronics for measuring a change of electrical resistance of the at least one strain gauge as a measured electrical resistance change, the read-out electronics including at least one fixed resistor whose value is relied upon when obtaining a value of the change of electrical resistance of the strain gauge as a result of the measurement, the read-out electronics being such that a temperature of the at least one fixed resistor is known and/or obtainable by measurement; and an evaluation unit for: correcting the measured electrical resistance change, and/or a strain of the strain gauge and/or the strain of the object.

Abstract: Transmissions and methods therefor are disclosed herein. A transmission includes a housing, an input shaft, and a cooling unit. The input shaft extends outside of the housing and is configured to receive rotational power from a rotational power source. The cooling unit is supported by the input shaft. The cooling unit includes a heat exchanger.

Abstract: A converter assembly including a source connection system comprising a primary source connection, and at least one secondary source connection; a load connection system; a primary source converter including a primary rectifier connected electrically to the primary source connection, and having a boost topology, and a DC link connected electrically between the primary rectifier and the load connection system, the DC link including DC link capacitance; a secondary source converter, which is a direct-current converter having a boost topology, connected electrically between the at least one secondary source connection and the DC link; and a pre-charge converter adapted for pre-charging the DC link capacitance. The pre-charge converter includes a pre-charge direct-current converter having a step down topology.

Abstract: An electrical drive system including an inverter and an electrical machine supplied by the inverter. A method for controlling the electrical drive system includes: receiving a machine current signal and a machine voltage signal of a machine current supplied to the electrical machine; determining a switching signal based on the machine current signal and controlling the inverter with the switching signal; estimating a first speed estimate from the machine current signal; estimating a second speed estimate from the machine voltage signal; and comparing the first speed estimate and the second speed estimate with each other, and, when the first speed estimate and the second speed estimate deviate from each other more than a threshold, activating a fault reaction of the electrical drive system, which sets the electrical drive system to a predefined state.