ELECTRIC ARC DETECTOR AND METHOD FOR DETECTION OF UNDESIRED ELECTRIC ARCS PERTAINING THERETO Russian patent published in 2012 - IPC H01H9/50 H01H33/04 H02H7/55 H02H7/08 G01R31/333 

FIELD: electricity.

SUBSTANCE: electric arc detector for detection of undesired electric arcs contains an antenna for receipt of the electromagnetic signal representing the electric arc and a discriminator for analysis of the signal from the antenna. The discriminator contains a spectrum analyser designed so that to enable detecting whether the signal represents a normal electric arc or an undesired electric arc. The discriminator is designed so that to enable detecting whether the signal represents a normal electric arc or an undesired electric arc by way of comparing the levels of signal at the signal spectrum frequencies corresponding to at least one partial reference spectrum and defining of an electric arc a normal one if the deviation from the reference spectrum is less than the threshold deviation. Additionally presented is a corresponding method.

EFFECT: establishment of difference between normal and undesired electric arcs.

13 cl, 3 dwg