Abstract: A compensation structure for reducing circulating current in a window of a transformer, the transformer having a winding, a metal frame and leads located at one side of the frame and spaced apart from the frame. The frame has borders and an iron core located inside a window enclosed by the borders. The winding is provided around the iron core, wherein the compensation structure includes at least one compensator on the borders of the frame. The compensator is made of silicon steel sheets of a magnetic material, and the compensator separates at least a part of the borders of the frame from a part of the leads. The compensation structure separates iron structures between a high-voltage side and a low-voltage side, increases the impedance between the window circuit of the frame and the current circuit of external leads, thereby reducing the induced current within the frame and avoiding harmful effects.

Abstract: A computer-implemented method for determining an operational property of a drill-rod borehole pump. A load-distance diagram with curve points for the pump is ascertained by an analysis device and provided as an operational load-distance diagram with operational curve points. In a training mode, a model load-distance diagram with respective model curve points is provided, and normalized to a specified reference variable, and for at least one sub-quantity of the model curve points, a model is generated and trained on the basis of a Kohonen network with elliptical Fourier descriptors. In an operating mode, the operational curve points are normalized to the reference variable, elliptical Fourier descriptors are determined for the operational curve points, and checked to determine a similarity between the elliptical Fourier descriptors of the operational curve points and the model of the Kohonen network, and if so, the operational property of the pump is determined.

Abstract: An apparatus and method for removing excess material, preferably a powder, from a cavity of a component, wherein the apparatus includes: a platform for retaining the component, preferably an additively manufactured component, a drive mechanism being coupled to the platform, wherein the drive mechanism is configured to rotate the component being retained by the platform independently around two orthogonal spatial directions and each with an unlimited angular deflection, an actuator for mechanically actuating the platform during a removal of the excess material, and a housing, defining a working space in which the excess material can be removed from the cavity, wherein the housing seals the working space against an environment, and wherein any electrical components for the drive mechanism are arranged out of the working space.

Abstract: A computer-implemented method for determining an operational property of a drill-rod borehole pump. A load-distance diagram with curve points for the pump is ascertained by an analysis device using a detection device and is provided as an operational load-distance diagram with operational curve points. Wherein in a training mode, a load-distance diagram model for the pump with model curve points is generated and trained on the basis of machine learning, at least two specified analysis regions are determined in the load-distance diagram model, and a reference point is ascertained from the model curve points of at least one region. In an operating mode for the operational load-distance diagram, a check is carried out to determine whether the at least one reference point is contained within the surface contained by the operational curve points, and if so, the operational property of the conveyor pump is determined therefrom.

Abstract: An electrolysis device having at least one electrolytic cell and an electrolysis energy source connected to the at least one electrolytic cell. A method for operating an electrolysis device includes applying an electrical electrolysis current to at least one electrolytic cell of the electrolysis device during normal operation in order to perform electrolysis of a substance located in a reaction chamber of the electrolytic cell, and detecting the electrical electrolysis current by a sensor unit. A protective voltage is applied to at least one electrolytic cell according to the detected electrical electrolysis current, which protective voltage is provided individually for the at least one electrolytic cell.

Abstract: A photovoltaic module has at least one solar cell, wherein the solar cell is enclosed by an encapsulation apparatus, and an electrolysis unit for dehumidifying the interior of the encapsulation apparatus. The electrolysis unit has a cathode, an anode, and an ion conductor connecting the cathode and the anode. The electrolysis unit is designed to cleave water in hydrogen and oxygen. A method for dehumidifying a photovoltaic module is accomplished by the electrolysis unit.

Abstract: An improved structural arrangement for mounting winding packages in the air core reactor is provided. Disclosed embodiments make use of structural properties, such as hoop tensile properties, of a filament roving 130 that may be arranged to surround structural features (e.g., inclined surfaces 108) formed in a disclosed mounting plate 110.

Abstract: A combustion chamber, in particular for a gas turbine, includes a support structure, a plurality of retaining elements fastened to the support structure, and a plurality of heat shield elements which jointly form a heat shield and which each have a hot gas side, a cold gas side and end faces which interconnect the hot gas side and the cold gas side, the retaining elements interlockingly engaging in recesses in the heat shield elements. The retaining elements each have at least two engagement portions for interlockingly engaging in the recesses in a heat shield element, which engagement portions are interconnected in a tensionally rigid manner and are tensionally rigid themselves. Spring elements extend between the support structure and the heat shield elements, which spring elements are designed in particular as leaf springs and effect a frictional connection between the engagement portions of the retaining elements and the heat shield elements.

Abstract: Compressor rotor structure for turbomachinery, such as a compressor, is provided. Disclosed embodiments may involve a flow loop that at least in part flows through the interior of the tie bolt or by way of a venting arrangement that at least in part extends through one of the rotor shafts of the rotor structure. Disclosed embodiments may further benefit from seal elements that may be arranged to inhibit passage onto respective hirth couplings of the process fluid being processed by the compressor. In operation, the flow loop may be appropriately pressurized to keep any residual seal leakage that may develop in one or more of the seal elements from travelling onto the hirth couplings.

Abstract: A Nickel-based alloy which includes (in wt %): Cobalt (Co) 27.0%-29.0%; Chrome (Cr) 16.0%-18.0%; Aluminum (Al) 11.6%-12.6%; Yttrium (Y) 0.3%-0.5%; Iron (Fe) 4.0%-5.0%; optionally Tantalum (Ta) 0.6%-0.8%; Molybdenum (Mo) 0.4%-0.6%; Silicon (Si) 0.4%-0.6%; and the rest Nickel (Ni).

Abstract: A fuel nozzle for use in a combustion arrangement of a gas turbine includes a main body extending from a cold side to an opposite hot side and at least five air passages arranged next to each other extending from the cold side towards the hot side. A fuel distribution chamber is arranged within the main body next to the cold side, wherein the air passages cross the fuel distribution chamber separated by passage walls. To inject fuel into the air passages, fuel holes are arranged within the passage walls.

Abstract: A computer-implemented method for determining an operating property of a pumpjack, wherein the pump has a pump head, which is connected to a kinematic converter via a rod system, and the kinematic converter is driven by a motor during operation and a load-travel graph containing curve points is determined for the delivery pump by an analysis device using recording and is provided as an operating load-travel graph containing operating curve points.

Abstract: A Nickel-based alloy includes (in wt %): 25.7%-27.3% Cobalt (Co), 15.0%-16.0% Chromium (Cr), 12.2%-13.2% Aluminum (Al), 0.3%-0.5% Yttrium (Y), 2.5%-3.5% Ruthenium (Ru), 0.4%-0.8% Silicon (Si), 0.4%-0.6% Tantalum (Ta), and 0.4%-0.6% Molybdenum (Mo).

Abstract: A configuration for stabilizing an AC voltage grid has a rotating phase-shifter that is configured to exchange reactive power with the AC voltage grid. The configuration is distinguished by a converter which has a grid side for connection to the AC voltage grid and a machine side for connection to the phase-shifter. A method is furthermore taught for stabilizing the AC voltage grid by way of the configuration.

Abstract: An apparatus for damping vibrations in high-voltage devices has a support arrangement for the high-voltage device. The support arrangement includes support elements interconnected by connection elements. Intermediate elements, in particular coated washers, are arranged between the connection elements and the support elements and/or between different support elements. There is also described a method for damping vibrations, in which connection elements spatially fix support elements of the support arrangement of a high-voltage device in a mechanically stable manner. When mechanical vibrations occur on the high-voltage device, the connection elements dampen the mechanical vibration in a defined manner via a predetermined sliding friction with the support elements and via a spatially predetermined play in relation to the support elements.

Abstract: A controller for a gas turbine arranged to supply a load is described. The gas turbine includes a fuel supply arranged to supply fuel at a fuel flow rate to a combustor. The fuel supply includes a first fuel supply and a second fuel supply. The controller is arranged to control a proportion of the fuel flow rate supplied via the first fuel supply based, at least in part, on the fuel flow rate. A gas turbine includes such a controller and a method controls such a gas turbine.

Abstract: An electrical power transmission device includes at least one switching unit having at least one contact fitting for electrically contacting the switching unit. Furthermore, the switching unit has a sensor for monitoring the state of the switching unit. The sensor is supported by the contact fitting. The sensor is at least partially masked by the contact fitting.

Abstract: A turbine blade having a blade airfoil. A first cooling path for a first coolant stream and a second cooling path for a second coolant stream are formed within the blade airfoil. The first cooling path includes a first coolant passage, which is designed for cyclone cooling of the leading edge, and a second coolant passage, which adjoins the first coolant passage and extends below the blade tip from the leading edge toward the trailing edge. The second cooling path includes a serpentine coolant passage for cooling a central region of the blade airfoil and a first trailing-edge coolant passage for partially cooling a trailing-edge region.

Abstract: A method, system and tool for determining the wear state of a component of a continuous flow engine. The method includes determining multiple types of oxidation layers and their properties, wherein the oxidation layers originate from the same material of the component, and diagnosing the wear state of the component by utilizing the properties of the oxidation layers.

Abstract: A 3D printing method providing an improved manufacturing process by providing a plurality of layers forming at least a part of the component, wherein the plurality of layers contains at least one first layer part and at least one second layer part, wherein the at least one first layer part and the at least one second layer part have been manufactured with different manufacturing speeds.