Abstract: A method for diagnosing the state of wear of an electrical switching unit including an electrical unit monitoring phase. The monitoring phase uses learning data loaded previously and representative of the type of electrical unit, and initialization data corresponding to the unit to be monitored and stored in an initialization phase. The monitoring phase includes the measurement and the acquisition of a measurement curve on opening the electrical unit, the determination of the value of local descriptors of the measurement curve as a function of values of the measurement curve, of initialization data and of learning data, the determination of the positioning of local descriptor values, the determination of an overall state class as a function of the positioning values. The device and the electrical unit implement the method.

Abstract: A method for diagnosing the wear status of an electrical switching unit including a phase for monitoring the electrical unit. The monitoring phase uses: learning data previously loaded and representative of the type of electrical unit, and initialization data corresponding to the unit to be monitored and stored in memory during an initialization phase. The monitoring phase includes the measurement and the acquisition of a measurement curve upon the opening of the electrical unit, the determination of values of local descriptors with little sensitivity to the temperature from the measurement curve as a function of values of the measurement curve, of initialization data, and of learning data, the determination of a global status class as a function of the positioning values. The device and the electrical unit implement the method.

Abstract: A method for diagnosing the wear status of an electrical switching unit including a phase for monitoring the electrical unit. The monitoring phase uses: learning data previously loaded and representative of the type of electrical unit, and initialization data corresponding to the unit to be monitored and stored in memory during an initialization phase. The monitoring phase includes the measurement and the acquisition of a measurement curve upon the opening of the electrical unit, the determination of values of local descriptors with little sensitivity to the temperature from the measurement curve as a function of values of the measurement curve, of initialization data, and of learning data, the determination of a global status class as a function of the positioning values. The device and the electrical unit implement the method.

Abstract: A method for diagnosing the state of wear of an electrical switching unit including an electrical unit monitoring phase. The monitoring phase uses learning data loaded previously and representative of the type of electrical unit, and initialization data corresponding to the unit to be monitored and stored in an initialization phase. The monitoring phase includes the measurement and the acquisition of a measurement curve on opening the electrical unit, the determination of the value of local descriptors of the measurement curve as a function of values of the measurement curve, of initialization data and of learning data, the determination of the positioning of local descriptor values, the determination of an overall state class as a function of the positioning values. The device and the electrical unit implement the method.

Abstract: The invention relates to a device for neutralizing an electric switching unit. One or several power poles, each of which is provided with movable contacts separable form fixed contacts are actuatable between opened and closed positions by an actuator for switching-on an electric charge. A mechanical actuating device interacts with the movable contacts. It is used for actuating a device for neutralizing the electric switching unit by switching-off the control electric circuit thereof when the wear degree of pellets is greater than a predetermined threshold. The control circuit is switched-off, for example, by cutting a wire thereof. An electric switching unit is provided with the device.

Abstract: The invention relates to a device for neutralising an electric switching unit comprising one or several power poles, each of which is provided with movable contacts (2) separable form fixed contacts (3) and actuatable between opened and closed positions by an actuator for switching-on an electric charge. The inventive device comprises mechanical actuating means which interact with the movable contacts (2) and are used for actuating means for neutralising the electric switching unit by switching-off the control electric circuit (50) thereof when the wear degree of pellets (20, 30) is greater than a predetermined threshold. The of control circuit is switched-off, for example, by cutting the wire (5) thereof. An electric switching unit provided with said device is also disclosed.