Abstract: A locking arrangement includes at least a rotatable part, a stationary part with respect to the first part, and a locking member having locking protrusions. At least one working plane passing through the locking protrusions is defined in a locking position where compression forces are concentrated which are reaction forces to external forces tending to rotate the parts relative to each other. The parts have locking protrusions defining gaps for receiving the locking protrusions in the locking position for preventing the parts from being rotated to each other.

Abstract: The control device possesses a rigid main part combining most of the functional elements of this type of control device. It is made up of two portions of a rotary shaft, having placed between them a cam and a support arm that are connected together by a pivot that is offset relative to the axis of rotation. A toothed wheel having an inner set of teeth is placed around the support arm that is provided with a rachet system. The toothed wheel has an outer set of teeth-driven by a motor, via an intermediate gearwheel. The pivot controls the compression of the actuator spring by the assembly rotating. The device is applicable to high and medium voltage circuit breakers and switches.

Abstract: A gas exhaust diffuser for a circuit breaker, comprising a first casing extending longitudinally along a principal axis with an open end to allow gas to enter and a closed end, and a second casing coaxial to the first casing, extending along the principal axis, with at least one outlet to allow gas to escape, the closed end of the first casing being arranged in the second casing and the first casing having at least two radial openings near its closed end to provide a fluid communication between the first and second casing. A plurality of incurved elements are positioned radially in the second casing at the at least one radial opening to create a rotation of an entering exhaust flow in a plan perpendicular to the principal axis, thereby generating a substantially helicoidally-shaped exhaust flow path in the second casing.

Abstract: This system (210) comprises an antenna (20) comprising a first loop (22) and a second loop (24) having different radiation patterns, the first and second loops being designed to generate first and second currents (I1, I2) when the antenna passes over a beacon situated on the line and an electronic processing subsystem designed to generate a location signal from said first and second currents. It is characterized by said subsystem being a first subsystem (230) for generating a first location signal (SL1), the system comprises a second subsystem (240) for generating a second location signal (SL2) from said first and second currents, and by said subsystem comprising an arbitration means (250) designed to generate a safety location signal (SLS) according to said first and second location signals.

Abstract: A system and method for determining a direction of travel of a vehicle and/or identifying a misplaced wayside device obtain location data from wayside devices. The location data are representative of locations of the wayside devices along a route being traveled by a vehicle. The system and method also determine whether the location data in a series of the wayside devices exhibit an increase or a decrease in the location data across the wayside devices in the series and, responsive to determining whether the location data in the series of the wayside devices does exhibit the increase or the decrease in the location data, the system and method determine a direction of travel of the vehicle along the route, determine a location of the vehicle along the route, and/or identify a misplaced wayside device.

Abstract: The invention relates to a full Bridge module, for connecting an electrical device such as a DC capacitor to an electrical circuit. The full bridge module comprises: a first and a second terminal to connect to the electrical circuit; a third and a fourth terminal to connect to the electrical device. The full bridge module further comprises a first to a fourth switch that connect the first and the second terminal to the third and fourth terminal. The first and the second switches are arranged on a first surface, the third and the fourth switches being arranged on a second surface that is parallel to the first surface. The invention relates also to a Voltage-source converter.

Abstract: A method of preventive detection of a fault in at least one device under surveillance of a group comprising at least two devices, the device under surveillance having at least one first parameter correlated with at least one second parameter of at least one second device in the group, said parameters representing state variables of said devices. The method includes the following steps: predicting a value of the first parameter from a measured value of the second parameter; comparing the predicted value of the first parameter and a measured value of the first parameter; and analyzing the result of the comparison effected in the comparison step to detect a potential fault. The invention also relates to a computer program, an installation, and a module for preventive detection of a fault in a device.

Abstract: A permanent magnet rotor comprising a rotor rim and a plurality of permanent magnet modules arranged on the outer or inner circumference of the rotor rim, the permanent magnet modules extending generally along an axial direction and being of substantially constant axial-cross section, and comprising a base adapted to be fixed to the rim of the generator rotor, one or more permanent magnets, and one or more pole pieces, wherein the permanent magnet modules comprise an axial cooling channel extending substantially along the length of the modules.

Abstract: The invention relates to a method for controlling the operation of a positioning system (10) of a train, the system (10) including: a toothed tone wheel (12), three sensors (18, 20, 22) for detecting the presence of a tooth, arranged spatially so that six possible and different positions of the wheel (12) may be represented by six possible logic states of the three sensors (18, 20, 22), the six states being different, the method including a step for: detecting states corresponding to the signals delivered by the three sensors (18, 20, 22), comparing the detected states with the values of the six logic states, determining the operating state of the system (10) according to the comparison.

Abstract: The air conditioning device (10) includes a heat exchanger (12) intended to exchange heat with the air circulating in the air conditioning device (10), and an air distribution box (14), extending in a longitudinal direction (X) between a front part (14A) and a rear part (14B), and in a transverse direction between two side parts (14C). The distribution box is fastened to a ceiling (5) of the driving cabin (1), and comprises: in its front part (14A), a front inlet (16) for air coming from the cabin (1), connected upstream from the heat exchanger (12), and in each of its side parts (14C), a respective side outlet (18) for conditioned air, connected downstream from the heat exchanger (12).

Abstract: A solar thermal power system can include a solar receiver steam generator, a thermal energy storage arrangement utilizing a thermal energy storage fluid, and a multistage steam turbine for driving an electrical generator to produce electrical power. The solar thermal power system has a first operating mode in which steam is generated by the solar receiver steam generator and is supplied both to the thermal energy storage arrangement and to a high pressure turbine inlet of the multistage steam turbine. In a second operating mode, steam is generated by recovering stored thermal energy from the thermal energy storage fluid of the thermal energy storage arrangement for injection into the multistage steam turbine at a location or turbine stage downstream of the high pressure turbine inlet.

Abstract: The subject specification comprises enhanced communication infrastructure for a multi-tier hierarchical smart distribution grid (SDG). The SDG comprises a specified number of distribution network node controller (DNNC) components employed to desirably control communications and power distribution between respective tiers of the SDG to facilitate efficient power distribution. When communication between the a DNNC in one tier and another DNNC in another tier, is desired, the DNNC can identify available communication channels and respective communication conditions of the available communication channels, and can dynamically select a subset of available data and preferred communication channel, based at least in part on predefined control criteria, to control data transmission loads in the network and facilitate real time control of the SDG. Data can be communicated via the selected communication channel.

Abstract: A wind turbine generator comprising a rotor, a stator and an air gap between a gap-delimiting region of the stator and a gap-delimiting region of the rotor; wherein the rotor and/or the stator are deformable under operational loads and configured in such a way that the air gap resulting from the presence of operational loads is more uniform than the air gap in the absence of operational loads. A method for optimizing an air gap between a gap-delimiting region of a stator and a gap-delimiting region of a rotor of a wind turbine generator, said rotor and/or said stator being deformable under operational loads and said optimization consisting in that the air gap resulting from the presence of the set of operational loads is more uniform than the air gap in the absence of the set of operational loads.

Abstract: A solar boiler 300 includes first and second primary receiver panels 500, 600 spaced apart by a gap 700. Each panel 500, 600 include a plurality of primary boiler tubes 510, 610 for receiving solar flux. The boiler 300 includes at least one secondary receiver arrangement 800 disposed across the gap 700 for receiving solar flux incident thereacross. The arrangement 800 includes at least one secondary boiler tube 810, and at least one support member 820 supported thereto. The arrangement 800 is configured relative to the primary panels 500, 600 such that endmost primary boiler tubes 510a, 610a are supported over the support member 820 in spaced relation ‘S’ to the secondary boiler tube 810 for enabling transverse and lateral thermal expansion of the tubes 510, 610, 810 without bending out. Further, a panel joining attachment 900 is provided for attaching the panels 500, 600 and the arrangement 800.

Abstract: This fin is intended to be installed in a protruding manner inside a discharge pipe of a hydraulic machine. The fin includes a first face which has holes and a second face which is solid. The fin defines by itself, between the first face and the second face, a cavity connecting the outside of the discharge pipe to the holes in the first face.

Abstract: The invention provides a control device for regulating and balancing currents, for DC/DC converters, between first and second voltage sources, the device comprising: n converters (C1, C2, . . . Cn) that are connected in parallel to the first voltage source (11); n inductors (L1, L2, . . . Ln) that have their outlets connected to the second voltage source (R) via n connections; n current sensors (22) that are arranged on respective ones of the connections; and a single regulator system that has its inputs connected to respective ones of the n current sensors (22), and its output connected to the n converters (C1, C2, . . . Cn).

Abstract: Air core reactor includes a coil connected between first and second terminals. The coil is made of a succession of bundles of conductor (B1, B2, B3, . . . , BN) connected in series along an axis between the first terminal and the second terminal. Each bundle is made of one wire wound around the axis to form a multi-layer winding having a cross-section of N winding layers in a direction perpendicular to the axis, from a winding layer of rank 1 which is the closest to the axis to a winding layer of rank N which is the furthest from the axis. Each perpendicular winding layer includes several winding layers in the direction of the axis. The number of axial winding of the perpendicular winding layer of rank j (j=2, . . . , N) is equal or less than the number of axial winding layers of the perpendicular winding layer of rank j?1.

Abstract: System for stabilizing an offshore horizontal axis wind turbine having a tower, the system comprising sensors for generating signals representing detected movements of the tower, and gyroscopes. Each gyroscope has a spinning axis, an input axis and an output axis, and a flywheel rotatable about the spinning axis. The system further comprises an actuator for each gyroscope, said actuator being arranged with its related gyroscope in such a way that this actuator can apply a torque about the input axis of the gyroscope. The system also comprises a control unit for receiving the signals representing detected movements of the tower, and for providing the actuator with suitable control signals for said actuator to apply a torque about the related gyroscope input axis, said torque about the input axis producing a torque about the output axis of the same gyroscope that at least partly dampens the detected movements of the tower.

Abstract: It includes at least one platform defining a plane, first and second sets of complementary coupling elements associated with the tower section and the platform respectively, and arranged in levels. In a first relative position of the sets of coupling elements, the platform is allowed to pass, in a substantially horizontal position, through different levels of sets of coupling elements and in a second relative position of the sets of coupling elements, the platform rests with its second set of coupling elements on a first set of coupling elements of one given level. A device for moving the platform may be provided for fitting it inside the tower section. The first or the second set of coupling elements in different levels are aligned along a longitudinal direction inside the tower section.

Abstract: A ground level power supply system includes a live track capable of being brought to a supply voltage and a neutral track for the return current, with the live track being constituted of rectangular segments; a first voltage source capable of supplying a low supply voltage and a second voltage source capable of supplying a high supply voltage, each segment being connected by a controlled selector either to the first voltage source, or to the second voltage source; a speedometer capable of measuring the speed of a vehicle travelling over a section of a roadway equipped with the system; and a selection device capable of acquiring the vehicle speed measured by the speedometer, then comparing the speed measured with a threshold speed, and controlling the selector based on the results of the comparison.