Patent ID: 7627400

Claim:
A method of detecting an electrical arcing phenomenon on at least one electrical cable, wherein: A/ determining, in a preliminary step, a database comprising a plurality of classes, including a first class relating to a corona discharge phase to be detected and at least one second class relating to phenomena liable to interfere with the detection process; and B/ in a subsequent detection step, successively: a) in an acquisition phase: α) carrying out an electrical current measurement and an electrical voltage measurement directly on said electrical cable; β} filtering said current and voltage measurements obtained in this way; and γ) digitizing the measurements filtered in this way to form two digitized data segments relating to the electrical current and to the electrical voltage, respectively; and b) in a subsequent processing phase: α) subjecting each of said segments to a plurality of particular functions each generating a scalar magnitude, the set of scalar magnitudes relating to the current forming a first vector and the set of scalar magnitudes relating to the voltage forming a second vector; β) determining the class to which said shape vector belongs using said database and a shape vector obtained from said first and second vectors that is representative of the measurements carried out; and γ) concluding that: an electrical arcing phenomenon exists if said class represents said first class relating to a corona discharge phase; and there is no electrical arcing phenomenon otherwise.