Abstract: A magnetic field sensor for measuring a direct current includes a transducer formed of coils with superparamagnetic core in series; an excitation module generating an excitation current at an excitation frequency, via a midpoint coil, an excitation voltage generator and an excitation impedance. An analysis module includes an analysis impedance coupled to the midpoint coil, and an analyzer that analyzes the current passing through the analysis impedance to extract a component at an analysis frequency equal to an even multiple of the excitation frequency. The excitation impedance forms with the superparamagnetic coils a first series RLC circuit with a resonance frequency, which is substantially equal to the excitation frequency, and a second series RLC-type circuit with an analysis resonance frequency, which is substantially equal to the analysis frequency.

Abstract: A magnetic field sensor for measuring a direct current includes a transducer formed of coils with superparamagnetic core in series; an excitation module generating an excitation current at an excitation frequency, via a midpoint coil, an excitation voltage generator and an excitation impedance. An analysis module includes an analysis impedance coupled to the midpoint coil and an analyzer that analyzes the current passing through the analysis impedance to extract a component at an analysis frequency equal to an even multiple of the excitation frequency. The excitation impedance forms with the superparamagnetic coils a first series RLC circuit with a resonance frequency, which is substantially equal to the excitation frequency, and a second series RLC-type circuit with an analysis resonance frequency, which is substantially equal to the analysis frequency.

Abstract: A power meter for monitoring power signals from power lines is disclosed including a plurality of sensors coupled to at least one power line and configured to sense at least one parameter of at least one power signal carried by power line. At least one processor is configured to receive sensor data indicative of measurements of the at least one power signal by the plurality of sensors, to calculate a plurality of power values indicating an plurality of power values indicating at least an amount of power expected, based on the sensor data, to have been delivered through the at least one power line for a correct configuration of the plurality of sensors, a first misconfiguration of the plurality of sensors, and a second misconfiguration of the plurality of sensors, and to compare the plurality of power values to identify a current misconfiguration of the plurality of sensors.

Abstract: A power meter for a power delivery system has sampling chips for sampling sensor signals from sensors that measure parameters of power signals carried by power lines. A processor of the power meter is configured to collect and analyze samples of the sensor signals from the sampling chips. In this regard, the processor operates in a direct memory access (DMA) mode that allows it to perform other tasks during collection of the samples. Circuitry external to the processor uses the processor's clock signal to selectively control writing of sensor data from the sampling chips to the processor's memory. The circuitry operates in a manner that is transparent to the processor and the sampling chips, and the circuitry has sufficiently fast response time to prevent timing propagation errors.

Abstract: The invention relates to a power cable which comprises a central filler region (13) containing at least one conductor element (10), and additionally comprises at least one strip (16) arranged in said central filler region (13) in the vicinity of the conductor element (10). The cable is equipped with a winding-free energy recovery system (11) which supplies the strip (16) with electric current from the energy available in the conductor (10). The strip (16) has a plurality of elements which generate light from this electric current.

Abstract: An electrical breaking module includes a non-magnetic, electrically insulating casing housing, a fixed contact and a movable contact defining between them a breaking zone in which an electric arc extends at its origin when the electrical circuit is opened. A magnetic blow-out device is provided with at least one magnetic field source arranged in a breaking chamber, opposite the breaking zone to move and stretch the electric arc in a direction substantially perpendicular to the breaking plane towards the housing. The magnetic blow-out device also includes a non-magnetic, electrically insulating deflector, arranged in the breaking chamber to occupy most of the space between the breaking zone and the casing, so as to create at least one arc confinement zone, in which the electric arc when magnetically blown is deflected and constrained to promote its cooling and extinction.

Abstract: An electrical breaking module includes a non-magnetic, electrically insulating casing housing, a fixed contact and a movable contact defining between them a breaking zone in which an electric arc extends at its origin when the electrical circuit is opened. A magnetic blow-out device is provided with at least one magnetic field source arranged in a breaking chamber, opposite the breaking zone to move and stretch the electric arc in a direction substantially perpendicular to the breaking plane towards the housing. The magnetic blow-out device also includes a non-magnetic, electrically insulating deflector, arranged in the breaking chamber to occupy most of the space between the breaking zone and the casing, so as to create at least one arc confinement zone, in which the electric arc when magnetically blown is deflected and constrained to promote its cooling and extinction.

Abstract: An openable toroidal current transformer is intended to close over at least one electrical conductor in which an electrical current to be measured circulates. The current transformer includes a magnetic circuit, and an electrically conducting coil wound around the magnetic circuit and electrically insulated from the magnetic circuit. The coil comprises a single winding or several distinct windings coupled in series. The magnetic circuit comprises a set of wires of magnetic material assembled in the form of a strand, allowing having uniform flexibility in all directions for the magnetic circuit.

Abstract: A device for recovering energy from a single-phase power cable includes two phase conductors, a magnetic core, in the form of an openable torus, installed around the power cable to form a magnetic circuit able to pick up a magnetic field induced by a primary current passing through the phase conductors, a detection coil wound around the magnetic core, to induce a secondary voltage from the induced magnetic field and deliver across the coil an output voltage usable to power electrical systems, and a heterogeneous magnetic circuit to induce an asymmetrical magnetic flux flow in the magnetic circuit and maximize the output voltage of the detection coil.

Abstract: The invention concerns a device (10) for recovering energy from a single-phase power cable (1) comprising two phase conductors (C1, C2). It comprises a magnetic core (20), in the form of an openable torus, installed around said power cable (1) to form a magnetic circuit able to pick up a magnetic field induced by a primary current passing through said phase conductors, and a detection coil (30) wound around said magnetic core (20), to induce a secondary voltage from said induced magnetic field and deliver across said coil an output voltage usable to power electrical systems. It comprises a heterogeneous magnetic circuit to induce an asymmetrical magnetic flux flow in said magnetic circuit and maximize the output voltage of said detection coil (30).

Abstract: A UPS system includes a plurality of UPSs coupled in parallel and each having a bypass switch and a controller that is in communication with the controller of the other UPSs and including: a first unit monitoring the current flowing through a bypass line of its UPS and determining the effective value of the current strength; a second unit collecting the effective values of all of the UPSs having the bypass switch closed and defining a reference effective value corresponding to the lowest collected effective value; a third unit determining a delay for closing the bypass switch of said UPS, the delay being zero if the effective value of its UPS is equal to the reference effective value; and a fourth unit keeping the bypass switch closed if the delay is zero, or opening it for a duration corresponding to the delay before closing it.

Abstract: A device for recovering electrical energy includes a ferromagnetic cable helically wound around a portion of a power conductor , and disposed to form both a magnetic system which is capable of sensing the magnetic field induced by a current passing through the power conductor , and a way to generate a utilisable induced voltage from this magnetic field. The ferromagnetic cable is produced from an assembly of unitary strands produced from ferromagnetic material, these strands being assembled into the form of a stranded wire, each unitary strand behaving as a winding in which the induced voltage is induced, and the assembly of unitary strands forming an assembly of windings connected in parallel by way of connecting terminals provided at the ends of the ferromagnetic cable to recover the induced voltage.

Abstract: An extinguishing chamber of magnetic blow-out type for a breaking device includes a field source, a magnetic carcass and a breaking region, in which an electric arc is liable to form when a breaking pole belonging to the breaking device is opened. The field source is arranged to generate a magnetic field intended to move the electric arc in order to stretch it and accelerate its cooling and its extinguishing. The carcass is arranged to channel the magnetic field. The carcass is stood up against the field source and closes in front thereof so as to create an air gap in the magnetic circuit formed by the field source and the carcass and to thus maximize the magnetic field that passes through the breaking region.

Abstract: A method for installing a heavy and bulky switching module, in particular a static transfer switch, in an electrical cabinet, by way of an installation kit to make the switching module easily removable and interchangeable, regardless of its size and weight. The electrical cabinet is equipped with the installation kit including at least two support rails, extendable between an extended position outside, and a retracted position inside, the electrical cabinet, and forming two parallel rolling paths. The switching module is equipped with rollers in two parallel rows, arranged to circulate on the rolling paths to enable movement of the switching module relative to the electrical cabinet by pushing and pulling with minimal effort. A raised transport pallet is also used to facilitate handling of the switching module outside of the electrical cabinet by a simple industrial truck, without resorting to a lifting device.

Abstract: A method for installing a heavy and bulky switching module, in particular a static transfer switch, in an electrical cabinet, by way of an installation kit to make the switching module easily removable and interchangeable, regardless of its size and weight. The electrical cabinet is equipped with the installation kit including at least two support rails, extendable between an extended position outside, and a retracted position inside, the electrical cabinet, and forming two parallel rolling paths. The switching module is equipped with rollers in two parallel rows, arranged to circulate on the rolling paths to enable movement of the switching module relative to the electrical cabinet by pushing and pulling with minimal effort. A raised transport pallet is also used to facilitate handling of the switching module outside of the electrical cabinet by a simple industrial truck, without resorting to a lifting device.

Abstract: An extinguishing chamber of magnetic blow-out type for a breaking device includes a field source, a magnetic carcass and a breaking region, in which an electric arc is liable to form when a breaking pole belonging to the breaking device is opened. The field source is arranged to generate a magnetic field intended to move the electric arc in order to stretch it and accelerate its cooling and its extinguishing. The carcass is arranged to channel the magnetic field. The carcass is stood up against the field source and closes in front thereof so as to create an air gap in the magnetic circuit formed by the field source and the carcass and to thus maximize the magnetic field that passes through the breaking region.

Abstract: A power connection/disconnection system for connecting/disconnecting an electric power module in a high-power modular uninterruptable power supply installation includes: a frame, a rigid support extending along a first direction, a set of connectors mounted on the support and including a ground connector and power connectors. The connectors are successively aligned along the first direction and each shaped to be electrically connected along a second direction orthogonal to the first direction with bars of a power connection box of the installation and a translation device configured to move, using an actuator, the support in the second direction. The ground connector extends higher along the second direction than the power connectors. The ground connector is intended to be electrically connected to a ground bar of the box.

Abstract: A device for recovering electrical energy includes a ferromagnetic cable helically wound around a portion of a power conductor , and disposed to form both a magnetic system which is capable of sensing the magnetic field induced by a current passing through the power conductor , and a way to generate a utilisable induced voltage from this magnetic field. The ferromagnetic cable is produced from an assembly of unitary strands produced from ferromagnetic material, these strands being assembled into the form of a stranded wire, each unitary strand behaving as a winding in which the induced voltage is induced, and the assembly of unitary strands forming an assembly of windings connected in parallel by way of connecting terminals provided at the ends of the ferromagnetic cable to recover the induced voltage .

Abstract: A method for detecting the open or closed state of a protection appliance in an electrical installation including a voltage detector upstream of the protection appliance and a voltage detector downstream thereof, in which the voltage data provided by the voltage detectors is used to obtain information regarding the presence or absence of voltage upstream and downstream of the protection appliance, a correlation is established between the voltage data, and it is determined whether the protection appliance is in an open state, in a closed state, in an abnormal state or in an undetermined state. The current data provided by the current detectors can also be used to determine the cause of the tripping of the protection appliance, and to thereby obtain a full, precise and real-time diagnostic for the operation of the electrical installation.

Abstract: A device for controlling the switching of the contacts in an electrical apparatus comprises a unit inside, which are mounted a control lever in a pivot connection with the unit between two positions, a rotating element connected to the lever, and an actuating shaft connected between the rotating element and electrical contacts. The device further comprises a torsion spring mounted between the control lever and the rotating element, and a first and a second pawl scissor-mounted via a torsion spring, the first pawl cooperating with a first cam track of the lever to disengage the first pawl from a first stop and release the rotating element, and the second pawl cooperating with a second cam track of the lever to disengage the second pawl from a second stop and release the rotating element.