Abstract: The present invention relates to a method (200) for diagnosing a circuit breaker comprising at least one pole, each pole comprising an electrical contact configured to switch between a closed position and an open position. The method comprises: for each pole of the circuit breaker, capturing (208A, 208B) an image of the electrical contact of the pole at least once; for each pole of the circuit breaker, determining (218A, 218B) at least once a state of pole health among at least two states by means of an artificial-intelligence algorithm, the artificial-intelligence algorithm receiving as input at least one image of the pole and delivering as output the state of pole health; determining (220A, 220B) a state of health of the circuit breaker among at least two states, depending on the state of health of each pole; and rendering (222, 224) the state of health of the circuit breaker.

Abstract: This invention relates to an acoustic device for estimating a trigger intensity of a trip current flowing in a circuit breaker, the device comprising: a casing (22); a plate (32); a support (40), a tab (42) connecting the support and the plate; a microphone (70); an attenuator (44), the support extending between the microphone and the attenuator, the attenuator comprising a housing (46) with a housing orifice (48) and an attenuating membrane (50); and an electronic control unit (38), connected to the microphone, the attenuator being configured to attenuate noise generated by the circuit breaker, the noise being representative of the trigger intensity, the microphone being configured to measure the noise attenuated by the attenuator, and emit an output signal, and the electronic control unit being configured to receive the output signal and estimate the trigger intensity.

Abstract: This invention relates to a method for estimating a trip intensity of a circuit breaker, the circuit breaker being configured to switch from an armed configuration to a tripped configuration, a trip current, with an intensity equal to the trip intensity, flowing in the circuit breaker when same switches to the tripped configuration, the switching of the circuit breaker to the tripped configuration generating a sound, representative of the trip intensity, the method comprising at least the following steps: acquisition (102) of an output signal (So) emitted by a microphone, the output signal being representative of the sound generated by the circuit breaker when same switches to the tripped configuration; calculation (108) of a plurality of metrics from the output signal (So); and determination (110) of a trip intensity class via an artificial intelligence model, the trip intensity class being chosen among a plurality of predetermined trip intensity classes.

Abstract: A safety control device intended to process a control signal and generate a safety control order. The device has: a control input, a protection circuit, a coupler having an emitter circuit designed to emit a second signal and a receiver circuit for providing a third signal, a switch, a pulse generator designed to cyclically control opening and closure of the switch, and a processing circuit designed to execute a method for safely processing the third signal. Also disclosed are a contactor having such a control device and a method for safely processing a control signal.

Abstract: Embodiments of the present disclosure relate to a control circuit for a contactor and a control method thereof.

Abstract: A method for controlling an electromagnetic actuator including: applying a first control strategy in which first and third switches are kept in a closed state, whereas a second switch is switched between its open and closed states; detecting an occurrence of overconsumption of current in a coil of the actuator, by detecting that voltage measured on a control bus has exceeded a predefined voltage limit or by detecting that a duty cycle of the second switch has dropped below a threshold value; and in response, applying a second control strategy, instead of the first control strategy, in which the third switch is periodically opened in order to decrease the current supplied to the coil.

Abstract: Embodiments of the present disclosure relate to a control circuit for a contactor and a control method thereof.

Abstract: A method for controlling an electromagnetic actuator including: applying a first control strategy in which first and third switches are kept in a closed state, whereas a second switch is switched between its open and closed states; detecting an occurrence of overconsumption of current in a coil of the actuator, by detecting that voltage measured on a control bus has exceeded a predefined voltage limit or by detecting that a duty cycle of the second switch has dropped below a threshold value; and in response, applying a second control strategy, instead of the first control strategy, in which the third switch is periodically opened in order to decrease the current supplied to the coil.

Abstract: A safety control device intended to process a control signal and generate a safety control order. The device has: a control input, a protection circuit, a coupler having an emitter circuit designed to emit a second signal and a receiver circuit for providing a third signal, a switch, a pulse generator designed to cyclically control opening and closure of the switch, and a processing circuit designed to execute a method for safely processing the third signal. Also disclosed are a contactor having such a control device and to a method for safely processing a control signal.