Abstract: A controller for electrical equipment, in particular for a high-voltage circuit-breaker, the equipment being housed in a casing filled with a dielectric gas under pressure. An interrupting chamber within the casing extinguishes arcs produced by the main circuit-breaker contacts. The equipment employs a contact connecting rod designed to be moved in translation by said controller. The controller employs an operating piston mounted to slide in a cylindrical element fixed to the casing and connected to a communication duct for communicating with the inside of the casing via an actuating valve in the engagement position. The controller further includes a suction enclosure connected to said cylindrical element and communicating with the inside thereof via a communication duct when the actuating valve is in the disengagement position. A suction piston is mounted to slide in the enclosure. In addition, a reciprocating drive mechanism drives the suction piston in a reciprocating motion.

Abstract: Within an envelope, the medium or high voltage circuit breaker includes first and second main contacts that are movable relative to each other along a common axis, first and second arcing contacts that are movable along the common axis, the first arcing contact being secured to the first main contact, and a device for transmitting displacement to the second arcing contact in a direction opposite to the displacement of the first main contact and the first arcing contact. The device includes two wheels mounted in fixed positions in the circuit breaker and in alignment on the common axis, and a transmission belt looped around the two wheels, thereby enabling the second arcing contact to be displaced relative to the first contacts by means that occupy little space.

Abstract: A continuous input cell for data acquisition circuits, particularly in railway applications. The cell consists of at least two parallel lines of identical elements, and each line includes at least one Zener diode (DZ1 or DZ2), a switch (SW1 or SW2) preferably consisting of an optocoupler (U1 or U2), and an optocoupler (U3 or U4) including an LED.

Abstract: In a device with inflatable members for protecting vehicles against impacts, once inflated, the inflatable members are disposed alongside each other so as to have a general shape substantially identical to the general shape of the area of the vehicle to be protected. The inflatable members each have a general shape enabling them to be interleaved laterally with the two directly adjacent inflatable members.

Abstract: In an information transmission device and method for systems using radiating waveguides along which a mobile travels, an unmodulated carrier wave is injected into the radiating waveguide. Some of the energy of the unmodulated carrier wave is sampled locally along the radiating waveguide. A local modulation signal representing information addressed to the mobile modulates the unmodulated carrier wave. The modulated carrier wave is radiated to the mobile.

Abstract: A refuse recycling system which recycles municipal waste as energy, includes a shredder for shredding the waste and removing rejects via a feed pipe to a circulating fluidized bed reactor, the reactor producing flue gases. The reactor includes a side dense fluidized bed situated on the wall of the reactor which is provided with the feed pipe, the side dense fluidized bed extracting non-fluidizable heavy elements and transporting them to a coarse-particle sorter apparatus via an extraction duct disposed at a base of the side dense fluidized bed. At least a portion of the rejects from the shredder is fed into the coarse-particle sorter apparatus. The coarse-particle sorter apparatus cools the elements and extracts non-fluidizable inert matter from the elements, the remaining matter being fed back into the reactor. A module for recovering energy and for treating the flue gases output by said reactor is connected downstream from the reactor.

Abstract: A method of protection against impacts between two vehicles by means of an member, in which each of the vehicles includes an inflatable member adapted to be deployed under control of a signal commanding opening of the inflatable member, the method including the steps of detecting from a first vehicle an impending collision of the two vehicles, transmitting from the first vehicle a first signal commanding opening of the inflatable member associated with the first vehicle; receiving the first signal commanding opening of the inflatable member associated with the first vehicle, by the second vehicle, and transmitting to the second vehicle a second signal commanding opening of the inflatable member associated with the second vehicle. A device for implementing the above method is also disclosed.

Abstract: The present invention relates to a method and a device for grounding shielding braids of shielded cables. The device includes a longitudinal support of generally channel-shaped cross section, with a gasket covered in a sheath disposed in the bottom thereof. The support is suitable for receiving a cover on the top face thereof, the support including, in the upper portion thereof, a series of holes suitable for receiving the shielded cables.

Abstract: An arrangement for adjustably coupling a radio frequency input port to a resonator element of the filter. The arrangement comprises a resilient conductor (19) which extends from the input port (15) into the electric field of a resonator element (2). The remote end of the resilient conductor resiliently abuts the point (20) of an adjustment screw (20a). Operating the screw moves the resilient conductor in relation to the electric field and alters the capacitive coupling between the input port and the resonator element for fine tuning the impedance match of the input to the filter.

Abstract: The invention relates to a method for deciding on the acceptance or non-acceptance of a call by taking into consideration data signaled in conjunction with the attempt to establish a connection to a certain subscriber who is the called party, wherein in addition to the signaled data other data are considered which identify the actual situation of the certain subscriber and wherein the data are combined according to freely predetermined criteria, as well as a circuit module, a communication terminal, a portable unit, and a network component for a telecommunication network.

Abstract: A method of manufacturing a claw-type magneto-electric rotor. The claw type rotor comprising magnetic material parts forming the poles of the rotor and amagnetic material parts separating the poles of opposite polarity confined in a hollow cylindrical casing in the shape of a body of revolution, wherein the casing is made from an amagnetic material. The method includes a step of filling the hollow cylinder with the magnetic material parts and amagnetic material parts and a step of isostatic compression of the combination of these parts and the hollow casing cylinder. Each magnetic or amagnetic material part is made from a plurality of nested, independent, matched and coaxial tube elements each having lateral edges, transverse ends and a lateral face having the exterior shape of the corresponding radial thickness of the magnetic or amagnetic material part concerned.

Abstract: During opening or closing of the apparatus, in particular a circuit breaker while it is electrically isolated, the method consists in:i) recording a signal representative of the variation over time of the pressure inside the interrupter chamber by means of a sensor disposed outside the interrupter chamber and mounted to be in communication with the gas under pressure inside said chamber;ii) recording a signal representative of the variation over time of the position of the moving contact by means of a sensor disposed outside the interrupter chamber and mounted to detect movement of a drive rod; andiii) comparing the above signals with corresponding signals representative of reference operation of the high voltage electrical apparatus for the purpose of monitoring proper operation thereof or of detecting faulty operation of the electrical apparatus, particularly in the event of a valve in the interrupter chamber of the circuit breaker becoming jammed.

Abstract: A circuit-breaker of the puffer type, comprising two arcing contacts, at least one of the arcing contacts being part of a moving contact assembly made up of a first tube co-operating with a second tube to define a blast chamber, and a compression chamber closed by a semi-moving piston, the circuit-breaker being provided with first means for holding the piston stationary during a first portion of the displacement stroke of the moving contact assembly between the closed position and the open position, and with second means for displacing the piston axially with the moving contact assembly during a second portion of the same displacement stroke. The first means for holding the piston stationary comprise a stationary retaining member for locking an abutment arrangement associated with the piston, and the second means for axially displacing the piston comprise an unlocking member for unlocking said abutment arrangement, which member is associated with the moving contact assembly.

Abstract: To be able to utilize the advantages of a cordless system based on the DECT standard as well as the advantages of a cellular mobile radio system based on the GSM standard, dual-mode units are known which switch automatically to the lower cost standard. The expense of such units and of the necessary additional circuits in the network infrastructure is avoided when the mobile unit and a mobile unit adapter are equipped with an infrared interface, whereby all the necessary information for the man-machine communication are transmitted independently of the standards. In this way it is possible to access the GSM mobile radio network without engaging the network infrastructure, for example with a DECT mobile unit via a GSM mobile unit adapter. The infrared interface circuit, which essentially comprises an infrared transceiver (1.1, 2.1), a codec (1.3, 2.3) and a digital signal processor (1.2, 2.

Abstract: A compressed gas interrupter having a first contact piece having a hollow wear contact into which, during closure, there is inserted a rod-shaped wear contact provided on a second contact piece, an insulating nozzle on the same axis as the two contact pieces and fixed to the first contact piece with the throat of the nozzle having the wear contact of the second contact piece passing therethrough on closure, the nozzle connecting a gas compression chamber to an exhaust chamber, the wear contact of the second contact piece being movable along an axis and being displaced in the opposite direction to the wear contact of the first contact piece by a rack mechanism organized to transmit movement in opposite directions from the first contact piece to the second contact piece. The rack mechanism is disposed upstream from the throat of the nozzle so as to be situated off the path of the hot gases leaving the nozzle on interruption.

Abstract: A substation of the "one-and-one-half breaker" type has three identical gastight cubicles in the form of a rectangular parallelepipeds (11, 11', 11") each containing one circuit breaker and two disconnects, and each having electricity lead-ins for connecting the disconnectors with external busbars and/or cables. The lead-ins are disposed in oblique rows through the top face of each cubicle in a front row of lead-ins (27, 27A, 27B) and in a parallel rear row of lead-ins (27', 27'A, 27'B). The two outermost cubicles (11, 11") have lead-ins, front lead-ins in one case and rear lead-ins in the other, fitted for connection to a respective incoming feeder. The middle cubicle (11') has the lead-ins of the one row individually connected by interconnections busbars (35) to the lead-ins constituting a row of the one of the adjacent cubicles that is not fitted for connection to an incoming feeder.

Abstract: The invention relates to a high-speed control device for a high voltage connection apparatus, in particular a ground disconnector, which apparatus is fitted with a moving contact. The device comprises a spring for storing mechanical energy, a cocking mechanism for cocking the spring and comprising an electric motor organized to drive a first rotary part, a pivot arm, a second rotary part, and a latch organized to cooperate with said second rotary part to define two stable positions. The pivot arm carries the first pin organized to co-operate with two bearing surfaces of said first rotary part, and a second pin organized to co-operate with the two bearing surfaces of said second rotary part. The device makes it possible to obtain two stable latching points that are disposed at 180.degree. from each other.

Abstract: A circuit breaker comprising a first permanent current contact and a first arcing contact that are fixed, a second permanent current contact and a second arcing contact that are movable in a longitudinal direction to be connected with or separated from the fixed contacts, and a mechanism for displacing the moving contacts in the longitudinal direction in such a manner so as to separate the permanent current contacts before separating the arcing contacts. The mechanism includes a shaft movable in the longitudinal direction and secured to the moving permanent current contact, and a crank piece having two limbs forming an L-shape and rotatable about an axis that is fixed relative to the longitudinal direction and that extends perpendicularly to the direction, one limb of the crank piece being connected to the moving arcing contact, and its other limb being connected to the shaft.

Abstract: A boiler comprising a circulating fluidized bed hearth, a separator member for separating flue gas and solids extracted from the hearth, an external dense fluidized bed between the solids outlet of the separator member and the base of the hearth, the external bed containing a first heat exchanger in which a coolant fluid to be evaporated circulates. The outlet of the first heat exchanger is connected to a second heat exchanger placed in the hearth.

Abstract: A switching system having a plurality of positions for separating or interconnecting a generator, a network transformer, and a starter device, the system including a circuit breaker for the generator and a busbar disconnector for separating or interconnecting the generator and the network transformer, and a starter disconnector for separating or interconnecting the generator and the starter device. The busbar disconnector includes a first fixed contact and a first moving contact that co-operates by sliding with the first fixed contact, the first fixed contact and the first moving contact being integrated with the circuit breaker of the generator. The starter disconnector includes a second fixed contact and a second moving contact that co-operates with the second fixed contact by rotation. This organization remains economical to implement even for applications in which the generator is an alternator in a combined cycle or a gas turbine power station.