Abstract: A device for measuring electric currents includes Rogowski-type current sensors, each configured to measure an AC electric current in an electrical conductor, each sensor including coils that are electrically connected in series to form a measurement circuit and being joined to one another to delimit a central zone of this sensor to receive the corresponding electrical conductor. One of the coils is common to the first and second sensors, this common coil being electrically connected to the first and second measurement circuits.

Abstract: A device for measuring electric currents includes multiple current sensors of Rogowski type, each suitable for measuring an electric current flowing through an electrical conductor, these current sensors being in adjacent pairs and each including coils for measuring the current and a central aperture for receiving the corresponding electrical conductor. Each current sensor includes two of the coils, which coils are positioned in parallel and facing one another on opposite edges of the central aperture and two ferromagnetic bars extending between ends of the coils, perpendicularly to a longitudinal axis of the coils.

Abstract: The invention relates to a device for measuring an electrical quantity of one phase of an AC electric current in an overhead electrical network, comprising: a sensor designed to be attached to an electric line of the network, the sensor including: an electrically conductive plate; an electrical conductor, designed to electrically connect the plate to the line, in order to circulate a first current from the line through the conductor; a processing unit, designed to determine the electrical quantity from value values of the first electric current and a value of a capacitance between the plate and ground. The device also comprises a generator, electrically connected to the conductor and designed to inject a second current through the conductor, the second current having a frequency other than the frequency of the first current, the processing unit also being designed to calculate the capacitance between the plate and ground as a function of the second current.

Abstract: A module for the interconnection between an electrical circuit breaker and an electrical contactor includes a housing and multiple high-power electrical conductors that are housed inside the housing, each of the high-power electrical conductors being suitable for electrically connecting an electrical output of a circuit breaker to an electrical input of a contactor, in order to allow a supply electric current to flow from the circuit breaker to the contactor. This interconnection module additionally includes a voltage sensor, which sensor is suitable for detecting the presence of a voltage between at least two of the high-power electrical conductors.

Abstract: A device for measuring electric currents includes Rogowski-type current sensors, each configured to measure an AC electric current in an electrical conductor, each sensor including coils that are electrically connected in series to form a measurement circuit and being joined to one another to delimit a central zone of this sensor to receive the corresponding electrical conductor. One of the coils is common to the first and second sensors, this common coil being electrically connected to the first and second measurement circuits.

Abstract: The invention relates to a device for measuring an electrical quantity of one phase of an AC electric current in an overhead electrical network, comprising: a sensor designed to be attached to an electric line of the overhead electrical network, said sensor including: an electrically conductive plate; an electrical conductor, designed to electrically connect the plate to the electric line, in order to circulate a first electric current from the electric line through the electrical conductor; a processing unit, designed to determine the electrical quantity from a value of the first electric current and a value of a capacitance between the plate and the ground.

Abstract: A detector for detecting at least one electric quantity in an electric conductor, and an overhead network for distributing electricity. The detector includes a frame on which a mechanism is fixed, the mechanism including a magnetic toroid, divided into two branches rotatable around an axis defined by the frame, between a separated position and a position closed around the electric conductor, a current sensor, divided into two branches rotatable around an axis defined by the frame, between a separated position and a position closed around the electric conductor, the current sensor performing an AC current measurement, a force transmitting element transmitting a rotational force to the magnetic toroid and the current sensor, the element being provided with at least one portion to receive the conductor by bearing, and a first clamp including two clamp arms, and a second clamp including two clamp arms.

Abstract: A current sensor including a measurement torus, arranged in a casing positioned around an electric conductor able to transmit an electric current, and a device for detecting a voltage in the electric conductor. The detection device is configured for surrounding the electric conductor when the current sensor is installed.

Abstract: A device for measuring electric currents includes multiple current sensors of Rogowski type, each suitable for measuring an electric current flowing through an electrical conductor, these current sensors being in adjacent pairs and each including coils for measuring the current and a central aperture for receiving the corresponding electrical conductor. Each current sensor includes two of the coils, which coils are positioned in parallel and facing one another on opposite edges of the central aperture and two ferromagnetic bars extending between ends of the coils, perpendicularly to a longitudinal axis of the coils.

Abstract: A module for the interconnection between an electrical circuit breaker and an electrical contactor includes a housing and multiple high-power electrical conductors that are housed inside the housing, each of the high-power electrical conductors being suitable for electrically connecting an electrical output of a circuit breaker to an electrical input of a contactor, in order to allow a supply electric current to flow from the circuit breaker to the contactor. This interconnection module additionally includes a voltage sensor, which sensor is suitable for detecting the presence of a voltage between at least two of the high-power electrical conductors.

Abstract: A system to measure electrical energy of current in a secondary electrical conductor connected to a primary electrical conductor, the primary and secondary conductors having substantially same voltage. The system includes a primary module including an emitter and a unit for measuring voltage of the primary conductor, at least one secondary module including a receiver, an intensity sensor of current in the secondary conductor, and a unit for calculating energy of the current. The primary module compresses the measured voltage value and emits, to each secondary module, a first message containing the compressed measured voltage value. A time synchronization mechanism performs time synchronization of each intensity sensor with the voltage measuring unit. The calculating unit is connected to the receiver and can calculate energy from the measured voltage and intensity values.

Abstract: The removable device (20) according to the invention is designed to be connected to an electronic trip unit (10). The trip unit (10) comprises an internal electrical power supply bus (55) and the device (20) is adapted to be supplied with electrical energy via the internal electrical power supply bus (55). The device (20) comprises a withdrawal member (68) for withdrawing electrical energy on the internal electrical power supply bus (55). The trip unit (10) includes a switched-mode power supply (54) capable of delivering a power supply signal (S1). The withdrawal member (68) comprises detection means for detecting each rising edge of the power supply signal (S1), and the electrical energy of the power supply signal (S1) is withdrawn as of the detection of a rising edge.

Abstract: A current sensor including a measurement torus, arranged in a casing positioned around an electric conductor able to transmit an electric current, and a device for detecting a voltage in the electric conductor. The detection device is configured for surrounding the electric conductor when the current sensor is installed.

Abstract: This detector (1) for an electric conductor comprises a frame (2) on which a mechanism unit (200) is fixed including a magnetic toroid, divided into two branches, the toroid having a coil (24) wound around at least one of the two branches, and a current sensor, divided into two branches (26A, 26B). The mechanism unit also includes a force transmitting element, said element being provided with at least one portion able to receive the conductor by bearing, and at least two clamps (30A, 30B) for anchoring the detector on the electric conductor, each clamp being rotatable between an open position and a locked position of the clamp. The detector also comprises a base and at least one electronic device (6). The force transmitting element is extended by a trigger, each anchoring clamp (30A, 30B) has a portion in contact with the trigger, and each clamp bears a protruding member (34A, 34B). A spring (36A, 36B) is stretched between the protruding member (34A, 34B) and a part (290B, 290B) fixed on the frame (2).

Abstract: A device for measuring an electric current flowing in a cable, including a flexible Rogowski coil, secured to actuating means for moving the coil to an open position for engagement around a cable, and a closed position to surround the cable, a magnetic circuit, with a winding around the magnetic circuit, for closing around the cable when the coil is in the closed position. The coil in the closed position, may have a non-wound area of predefined length with an overwinding at each opening end of the coil.

Abstract: A detection device that detects resetting of an electric circuit breaker. The electric circuit breaker comprises fixed and moving contacts, the moving contact being movable between an open position and a closed position, a mechanism for separating the contacts, a lever for resetting the mechanism from the open position to the closed position of the moving contact, and an actuator for actuating the separator mechanism, the actuator including an electromagnetic coil and a core movable between an idle position and a working position in which the separating mechanism is actuated, the coil causing the moving core to move from idle position to working position. The detection device may comprise means to generate a resetting indication signal from an electric pulse corresponding to an electric current induced in the coil by the movement of the moving core from its working position to its idle position during resetting of the circuit breaker.

Abstract: The detection device (35) according to the invention makes it possible to detect resetting of an electric circuit breaker (10). The electric circuit breaker (10) comprises fixed (12) and moving (14) contacts, the moving contact (14) being capable of moving between an open position, in which the fixed and moving contacts (12, 14) are separated, and a closed position, in which the moving contact (14) is pressed against the fixed contact (12), a mechanism (16) for separating the contacts (12, 14), a lever (18) for resetting the mechanism (16) from the open position to the closed position of the moving contact (14), and an actuator (20) for actuating the separator mechanism (16), the actuator (20) including an electromagnetic coil and a core movable between an idle position and a working position in which the separating mechanism (16) is actuated, the coil being capable of causing the moving core to move from its idle position to its working position.

Abstract: The removable device (20) according to the invention is designed to be connected to an electronic trip unit (10). The trip unit (10) comprises an internal electrical power supply bus (55) and the device (20) is adapted to be supplied with electrical energy via the internal electrical power supply bus (55). The device (20) comprises a withdrawal member (68) for withdrawing electrical energy on the internal electrical power supply bus (55). The trip unit (10) includes a switched-mode power supply (54) capable of delivering a power supply signal (S1). The withdrawal member (68) comprises detection means for detecting each rising edge of the power supply signal (S1), and the electrical energy of the power supply signal (S1) is withdrawn as of the detection of a rising edge.

Abstract: A system to measure electrical energy of current in a secondary electrical conductor connected to a primary electrical conductor, the primary and secondary conductors having substantially same voltage. The system includes a primary module including an emitter and a unit for measuring voltage of the primary conductor, at least one secondary module including a receiver, an intensity sensor of current in the secondary conductor, and a unit for calculating energy of the current. The primary module compresses the measured voltage value and emits, to each secondary module, a first message containing the compressed measured voltage value. A time synchronization mechanism performs time synchronization of each intensity sensor with the voltage measuring unit. The calculating unit is connected to the receiver and can calculate energy from the measured voltage and intensity values.

Abstract: The device for measuring an electric current is provided to measure currents flowing in a cable. It comprises means for securing a flexible Rogowski coil able to occupy an open position enabling engagement around the cable and a closed position designed to surround the cable. The device comprises actuating means designed to move said coil from one position to the other. The measuring assembly comprises at least one such measuring device and measurement and/or transmission electronics of the result of the measurements receiving data from the coil of the measuring device.