Schneider Electric Industries Sas

Bertrand Masseboeuf

Joel Sorin

Olivier Coutelou

Yves Geay

A monitoring unit for monitoring a circuit breaker includes a safety module; programmable computation modules; an electrical power supply management system to switch, according to the level of electrical power received from electrical power supply sources and according to a predefined power supply program, between an active power supply mode in which the safety module and at least a portion of the computation modules are supplied with power, and a safety power supply mode in which the safety module is supplied with power and the computation modules are not supplied with power.

Monitoring unit for monitoring a circuit breaker comprising an electrical power supply management system and circuit breaker comprising such a unit

The monitoring device of an electric power supply is supplied by this electric power supply. It comprises a battery () forming a secondary power supply and which is triggered in case of outage of the primary power supply. A management circuit monitors the voltage at the terminals of the battery. A comparator compares the measured voltage at the terminals of the battery with first and second threshold values. A management circuit commands flow of a discharge current at the terminals of the battery, by means of a switch and of a counter configured to count a quantity representative of the discharge current. The management circuit can inform the user that the battery is defective according to the value of the counter.

Monitoring device comprising a management of battery discharge and method of battery discharge management

A management device () of the causes of tripping in an electronic trip device enabling operation to take place in efficient and dependable manner by means of an architecture with three microcontrollers. The first microcontroller (), second microcontroller () and third microcontroller (), connected to one another, perform analysis and storage of characteristics typical to the electric power system () measured by the first microcontroller (). Depending on the power supply situations and the analyzed events, one, two or three microcontrollers can be active to reduce the electric power requirements of the device (). Storage of the data concerning the electric power system () is at least partially performed in redundant manner.

Trip cause management device for an electronic trip device

A wireless current sensor for measuring an electrical current flowing in an electrical conductor comprising a current transformer including a core arranged around the electrical conductor and forming a primary of the current transformer, and a winding around the core and forming a secondary of the current transformer in order to retrieve an electrical power when an electrical current flows in the electrical conductor, and an electronic circuit connected to the secondary of the current transformer, the electronic circuit including means for storing the generated electrical power, means for measuring the electrical current flowing in the electrical conductor, and a wireless data transceiver coupled to a microcontroller to send the measurement data.

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Beaucroissant, France

Bertrand Masseboeuf