Henri Billod

A method for protecting an electrical energy distribution box (BODP) equipped with a supply current distribution bar (BDP) intended to be connected between an electrical energy source (G) and loads (Q, Q, Q. . . Qn) to be supplied, comprising detecting an electrical fault in the distribution box (BODP). The detection step comprises: &#x2014;measuring a supply current drawn on said supply current distribution bar (BDP) by the electrical energy source (G), &#x2014;measuring load currents distributed from the distribution bar to each of the loads (Q, Q, Q. . . Qn), and continuous processing of said measurements of current in the course of which the supply current and the load currents are compared with load current threshold values so as to detect overloads.

Method for protecting an electrical energy distribution box

System of current protection of a primary electrical distribution box supplied by at least one electrical energy generator and delivering electrical energy to at least one load and/or to at least one secondary distribution box, comprising a line contactor for each generator arranged between the primary electrical distribution box and said generator, the primary electrical distribution box comprising an electrically conductive frame. The system of protection comprises an electrical connection member capable of electrically coupling the frame of the box to an external metal structure coupled to the earth, a current sensor capable of measuring a current flowing through said electrical connection member, and control means capable of controlling the line contactors so as to electrically decouple at least one generator from the primary electrical distribution box if a current flowing through said electrical connection member is detected.

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Othis, France

Henri Billod