Saft

Mersen France Sb Sas

Patrice Fleureau

Philippe Desprez

Jean-François Oeuvrard

Alain Patin

Pierric Gueguen

Loïc Reboussin

A protection device for an electrical circuit comprising at least one circuit breaker comprising a control zone, suitable for receiving a tripping signal (S), and a power zone for the passage of electric current. The device also comprises a control circuit configured to produce and transmit the tripping signal to the control zone. The device further comprises a fuse connected in series between the first conductor and the circuit breaker and capable of supplying a supply voltage (V) to the control circuit, the control circuit being connected between the fuse and the control zone.

Protection device for an electrical circuit, electrical circuit equipped with such a device and method for protecting such an electrical circuit

A method is provided for determining a state variable such as aging of an electrochemical cell comprising an electrode plate group, that includes analyzing at least a portion of a response spectrum of the electrochemical cell to application of an electromagnetic wave in a frequency ranging from 10 kHz to 10 GHz, so as to determine an indicator of the value of the state variable.

Method for determining a state variable of an electrochemical cell using complex impedance at radioelectric frequencies

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Le Taillan Médoc, France

Patrice Fleureau